Service Manual UP-20
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COLOR VIDEO PRINTER
UP-20 UP-21MD SERVICE MANUAL Volume olume 1 1st Ed Editi ition on (Revis (Revised ed 2)
WARNING ! WARNING This manual is intended for qualified service personnel only. To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.
WARNUNG ! WARNUNG Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt. Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung dazu besitzen.
! AVERTISSEMENT Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres. Pour toute réparation faire appel à une personne compétente uniquement.
UP-20/21MD V1
Table of Contents Manual Structure Purpose of this manual ........................ .................................... ........................ ......................... ......................... ........................ ..................... ......... 3 Related manuals....................... manuals................................... ........................ ......................... ......................... ........................ ......................... ..................... ........ 3
1. Serv Servic ice e Info Inform rmat atio ion n 1-1.
Board Board Location........ Location............ ........ ......... ......... ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ......... ......... ........ ........ ........ .........1-1 .....1-1
1-2.
Main Parts Location Location ........ ............ ........ ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ......... ......... ........ ...... .. 1-1
1-3.
Removal Removal and Installat Installation ion of Cabinet Cabinet ........ ............ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ...... .. 1-2 1-3-1. 1-3-1. Top Cover Cover ........ ............ ........ ......... ......... ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ........ ...... 1-2 1-3-2. 1-3-2. Ribbon Ribbon Panel Assembly Assembly ........ ............ ........ ......... ......... ........ ........ ........ ........ ........ ........ ......... ......... ....... ... 1-2 1-3-3. 1-3-3. Front Front Panel Assembly Assembly ........ ............ ........ ........ ......... ......... ........ ........ ........ ........ ........ ........ ........ ......... ....... .. 1-3
1-4.
Replacemen Replacementt of Main Parts ........ ............ ........ ......... ......... ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ......... ....... .. 1-4 1-4-1. 1-4-1. Mechanic Mechanical al Deck Assembly........... Assembly............... ........ ........ ........ ........ ........ ........ ........ ......... ......... ....... ... 1-4 1-4-2. 1-4-2. DC Fan ......... ............. ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ........ ........ ......... ......... ........ ........1-6 ....1-6 1-4-3. 1-4-3. Head Assembly Assembly ......... ............. ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ........ ........ .... 1-6 1-4-4. 1-4-4. DC Motor Assembly Assembly ........ ............ ........ ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ...... 1-7 1-4-5. 1-4-5. Stepping Stepping Motor Assembly......... Assembly............. ........ ........ ........ ........ ........ ........ ........ ........ ........ ......... .........1-8 ....1-8 1-4-6. 1-4-6. Grip Belt ........ ............ ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ........ ........ ........ ......... ........ ... 1-8 1-4-7. 1-4-7. Tray Guide Guide Assembly Assembly (2) ........ ............ ........ ........ ........ ........ ........ ........ ........ ........ ........ ........ ........ ....... ... 1-9 1-4-8. 1-4-8. S2/RIBBO S2/RIBBON N Sensor Sensor Board ........ ............ ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ...... .. 1-10 1-4-9. 1-4-9. S1 Sensor Sensor Board Board ........ ............ ........ ........ ........ ........ ......... ......... ........ ........ ........ ........ ........ ........ ........ ......... ....... 1-11 1-4-10. S8/S9 Sensor Board................................. Board.............................................. ......................... .................... ........ 1-11 1-4-11. Eject Roller Assembly................................. Assembly............................................. ........................ ................. ..... 1-12 1-4-12. Photo Sensor................................ Sensor............................................. ......................... ........................ .................... ........ 1-12 1-4-13. 1-4-13. Interlock Interlock Switch Switch Assembly Assembly ........ ............ ........ ........ ........ ........ ........ ........ ........ ........ ........ ........ ...... .. 1-13 1-4-14. Limit Rubber ....................... .................................... ......................... ......................... ......................... ............... ... 1-13 1-4-15. 1-4-15. Grip Roller Roller 2 Assembly Assembly ........ ............ ........ ......... ......... ........ ........ ........ ........ ........ ........ ......... ......... ...... 1-14 1-4-16. Platen Roller ........................ ..................................... ......................... ........................ ......................... ................ ... 1-15 1-4-17. Pinch Roller ......................... ..................................... ......................... ......................... ........................ ................ .... 1-15 1-4-18. Cam Gear/Cam R ......................... ..................................... ......................... ......................... ................... ....... 1-16
1-5.
Unleaded Unleaded Solder Solder ......... ............. ........ ........ ........ ......... ......... ........ ........ ........ ........ ......... ......... ........ ........ ........ ......... ......... ........ ........1-18 ....1-18
2. Electrica Electricall Alignme Alignment nt and and Mechanic Mechanical al Align Alignment ment
UP-20/21MD V1
2-1.
Electrical Electrical Adjustmen Adjustmentt ........ ............ ........ ........ ........ ........ ......... ......... ........ ........ ........ ......... ......... ........ ........ ........ ........ ......... ........ ... 2-1 2-1-1. 2-1-1. Densit Density y Adjustm Adjustment ent durin during g Thermal Thermal Head Head Replace Replacemen mentt ...... ......... ..... 2-1 2-1-2. 2-1-2. Output Output of Test Test Pattern Pattern (Interna (Internall Signal Signal)) in in Servi Service ce Mode Mode ........ .......... 2-3 2-1-3. 2-1-3. Electrical Electrical Adjustmen Adjustmentt (Analo (Analog g Video Video Block) Block) ........ ............ ........ ........ ........ ........2-4 ....2-4
2-2.
Mechanic Mechanical al Adjustmen Adjustmentt ........ ............ ........ ........ ........ ........ ........ ........ ........ ......... ......... ........ ........ ........ ......... ......... ........ ........2-8 ....2-8 2-2-1. 2-2-1. Mechanic Mechanical al Adjustm Adjustment ent Mode Mode ........ ............ ........ ........ ........ ........ ........ ......... ......... ........ ........ ...... .. 2-8 2-2-2. 2-2-2. Entering Entering the Mechanica Mechanicall Adjus Adjustmen tmentt Mode Mode ......... ............. ........ ........ ........ ........ ...... 2-8 2-2-3. 2-2-3. Normal Normal Operatio Operation n Check Check and Automatic Automatic Adjustmen Adjustmentt ........ ............ .......2-9 ...2-9
1
3. Sensor Arrangement and Functional Description 4. Circuit Operation Description 4-1.
Digital Video Signal Processing Block ....................................................... 4-1 4-1-1. Outline ........................................................................................ 4-1 4-1-2. Flow of Image Signal in Each Operating Mode......................... 4-2 4-1-3. Basic Operation Timing and CPU Block ................................... 4-6 4-1-4. Memory (DRAM) Block .......................................................... 4-10 4-1-5. Memory Control Block ............................................................ 4-11 4-1-6. Color Adjustment Block .......................................................... 4-13 4-1-7. Sampling Clock Generation Block ........................................... 4-14 4-1-8. Masking Block ......................................................................... 4-14 4-1-9. A/D and D/A Conversion Blocks ............................................. 4-14
4-2.
Analog Video Signal Processing Block .................................................... 4-15 4-2-1. Outline ...................................................................................... 4-15 4-2-2. Interface Block (IF-851 Board) ................................................ 4-15 4-2-3. Analog Video Signal Processing Block (Part of VPR-74 Board) ........................................................... 4-16
4-3.
Operation Description of Print Control Block Circuit .............................. 4-23 4-3-1. CPU Flowchart ......................................................................... 4-23 4-3-2. CPU (IC302) Memory Map ..................................................... 4-23 4-3-3. Outline of Motor Drive Function Blocks ................................. 4-24 4-3-4. Outline of Sensor Detection Circuits ....................................... 4-26 4-3-5. Head Control Block ..................................................................4-31
4-4.
Circuit Operation Description of System Control Block .......................... 4-33 4-4-1. Special Mode and Special Operating Method .......................... 4-33 4-4-2. Address Map ............................................................................ 4-33 4-4-3. Circuit Operation ...................................................................... 4-34 4-4-4. Communication with Internal CPU in Unit ............................. 4-35 4-4-5. Analog Video Block (VA) Control on the VPR-74 Board ......4-36 4-4-6. RS Communication Control ..................................................... 4-38 4-4-7. Media Protection such for Software ......................................... 4-38
5. Troubleshooting 5-1.
Video (Image) Related Trouble ..................................................................5-1
5-2.
Mechanical Troubleshooting.......................................................................5-3
Mechanical Trouble NG Code List
2
UP-20/21MD V1
Manual Structure Purpose of this manual This manual is the Service Manual Vol.1 of the Color Video Printer UP-20/UP21MD. This manual contains the service information, electrical alignment and mechanical alignment, sensor arrangement and functional description, circuit operation description and troubleshooting.
Related manuals In addition to this Service Manual Vol.1, the following manual is provided. . .
Service Manual Vol.2 Part No.: 9-955-307-XX (for J, UC, CE) Contains the semiconductor pin assignment, spare parts, block diagrams, schematic diagrams and board layouts.
. .
Instruction Manual Part No.: 3-206-154-XX This manual describes the information required for the actual management and operation of this unit.
. .
“Semiconductor Pin Assignments” CD-ROM (Available on request) This “Semiconductor Pin Assignments” CD-ROM allows you to search for semiconductors used in B&P Company equipment. Semiconductors that cannot be searched for on this CD-ROM are listed in the service manual for the corresponding unit. The service manual contains a complete list of all semiconductors and their ID Nos., and thus should be used together with the CD-ROM. Part number: 9-968-546-XX
UP-20/21MD V1
3
Section 1 Service Information The illustrations of this section use UP-21MD. For spare parts of each model, refer to “ Section 7 Spare Parts”. The following describes the differences of board name between models. Board name
Model names
KEY-49
UP-21MD
KEY-51
UP-20
MEC-15
UP-21MD
MEC-20
UP-20
SE-642
UP-21MD
SE-683
UP-20
* Any other boards describes in
1-2. Main Parts Location Switching regulator DC motor DC fan Stepping motor
above are in common use between models.
1-1. Board Location Mechanical deck assembly SW-1081 board IF-851 board VPR-74 board
IF-852 board KEY-49/ KEY-51 board
MEC-15/MEC-20 board SY-299 board
SE-642/SE-683 board
S2/RIBBON sensor board S11 sensor board
S8/S9 sensor board S1 sensor board
UP-20/21MD V1
1-1
1-3. Removal and Installation of Cabinet
1-3-2. Ribbon Panel Assembly
1-3-1. Top Cover
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Pull out the paper tray assembly in the direction indicated by arrow 1. 3. Release the door eject lever and pull out the ribbon panel assembly in the direction indicated by arrow 2. 4. Pull out the print media in the direction indicated by arrow 3.
1.
Remove the five M3 case fixing screws and then remove the top cover. Top cover M3 case fixing screw
Print media
M3 case fixing screws
3
2
M3 case fixing screws
Ribbon panel assembly
Door eject lever 1
2.
Re-attach the top cover in the reverse order of step 1.
Paper tray assembly
5. Remove the four screws and two thrust retainer bosses, and then open the VPR-74 board in the direction indicated by the arrow. 6. Disconnect the flexible flat cable from the connector (CN203) on the SY-299 board. VPR-74 board BVTT 3x6
Thrust retainer bosses Connector (CN203)
Flexible flat cable
1-2
SY-299 board
UP-20/21MD V1
7. Remove the front panel. (Refer to Section 1-3-3.) 8. Remove the two screws (BVTT 3 x 6) and then remove the door stoppers ((L) and (R)). 9. Insert pins into the two holes of sliders and remove the ribbon panel assembly. 10. Remove the two screws (BVTT 3 x 6) and four claws, then remove the ribbon panel. 11. Disconnect one flexible flat cable and one harness from the connectors (CN301 and CN302) on the KEY49 or KEY-51 board. 12. Remove the four screws (BVTT 3 x 6), then remove the KEY-49 or KEY-51 board. 13. Remove the four screws (BVTT 3 x 6), then remove the front plate assembly. 14. Remove one screw (PTT 2 x 10), then remove the interlock plate and SE-642 or SE-683 board.
1-3-3. Front Panel Assembly 1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the paper tray assembly. (Refer to Section 13-2.) 3. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 4. Remove the four screws and four claws and then remove the front panel assembly.
BVTT 3x6 Claw
Door stopper (L)
Slider
BVTT 3x6
Front panel assembly
Pin Ribbon panel assembly
Claw BVTT 3x6
Claw Front panel assembly Pin
Slider
Door stopper (R)
Connector (CN301) KEY-49/ KEY-51 board
Door front plate assembly BVTT Connector 3 x6 (CN302)
Claw
BVTT 3x6
Flexible flat cable
5. Re-attach the front panel assembly in the reverse order of steps 1 to 4.
Harness
BVTT 3 x6
BVTT 3x6 A
BVTT 3x6 Claws
SE-642/ SE-683 board
PTT 2x10 Interlock plate
Claws Ribbon panel
A
Door base assembly
15. Re-attach the ribbon panel assembly in the reverse order of steps 1 to 14. UP-20/21MD V1
1-3
1-4. Replacement of Main Parts
7. Remove the two screws and then remove the front stay assembly. 8. Remove the rod stopper from the switch on the SW1081 board.
1-4-1. Mechanical Deck Assembly 1. 2.
Remove the top cover. (Refer to Section 1-3-1.) Remove the four screws and two thrust retainer basses, and then disconnect the four flexible flat cables and one harness from the connectors (CN102, CN301, CN401, CN601, and CN901) on the VPR-74 board. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Disconnect the four flexible flat cables from the connectors (CN201, CN301, CN302, and CN401) on the SY-299 board. Remove the four screws, then remove the SY-299 board and mechanical partition plate.
3. 4. 5.
6.
n When attaching the rod stopper, refer to Fig. 1. 9. Remove the power button and spring compression, then remove the power switch rod.
Power switch rod
Spring compression
Crooves Switch Rod stopper Fig.1
Flexible flat cables
VPR-74 board
Thrust retainer bosses
Connector (CN401) Connector (CN301) Connector (CN302) Connector (CN201)
Flexible flat cables
Power switch rod
BVTT 3x6
BVTT 3x6
Connector (CN901) Connector (CN401) Connector (CN601) Connector (CN301)
Harness
SW-1081 board
Connector (CN102)
Switch
Flexible flat cables
Spring compression Rod stopper
BVTT 3x6 BVTT 3x6
BVTT 3x6
Front stay assembly
SY-299 board Mechanical partition plate
Power switch rod
BVTT 3x 6
Power button
1-4
UP-20/21MD V1
10. Remove the two screws (B 4 x 20) and then remove the DC fan. 11. Disconnect the two harnesses from the connectors (CN201 and CN207) on the MEC-15 or MEC-20 board. 12. Disconnect one harness connected to the thermal head from the switching regulator. 13. Remove the four screws (BVTT 3 x 6) and then remove the mechanical deck assembly in the direction indicated by the arrow.
MEC-15/MEC-20 board Connector (CN201)
Connector (CN207)
Harnesses
14. Disconnect the five harnesses from the connectors (CN105, CN203, CN204, CN205, and CN206) and the four flexible flat cables from the connectors (CN102, CN103, CN104, and CN106) on the MEC-15 or MEC20 board. 15. Remove the three screws and then remove the MEC15 or MEC-20 board. Flexible flat cable
Mechanical deck assembly
Harnesses
Connector (CN206) Connector (CN205) Connector (CN102)
Connector (CN204)
Flexible flat cables
BVTT 3x6
Connector (CN203)
A
Thermal head
B
B 4x20
Harness
Harnesses
Mechanical deck assembly
BVTT 3x6 Connector (CN106)
DC fan
Connector (CN103)
BVTT 3x 6
Connector (CN105)
Connector (CN104)
MEC-15/MEC-20 board
16. Attach mechanical deck assembly in the reverse order of steps 1 to 15.
A B
Switching regulator BVTT 3x6
UP-20/21MD V1
1-5
1-4-2. DC Fan
1-4-3. Head Assembly
1. 2.
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly and MEC-15 or MEC-20 board. (Refer to Section 1-4-1.) 5. Remove the DC fan. (Refer to Section 1-4-2.) 6. Remove the two screws (M 2.5 x 8), then remove the head assembly. 7. Disconnect one flexible flat cable and one harness from the head assembly.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Cut the band and remove the two harness. 6. Remove the screw (PSW 2.5x6), then remove the head harness cover. 7. Remove the two screws (M 3x14), then remove the DC fan. M 3x14
Harness DC fan Harness
To switching regurator
M 2.5x8 To SY-299 board
PSW 2.5x6
Head harness cover
Flexible flat cable
Head assembly To MEC-15/ MEC-20 board
To switching regulator
Harness
8.
1-6
Band
Attach the DC fan in the reverse order of steps 1 to 7.
8. Attach the head assembly in the reverse order of steps 1 to 7.
UP-20/21MD V1
n When attaching the head assembly, push it in the direction indicated by the arrow, then attach the screw A first and then the screw B.
Rear side
Front side
Screw
Screw
Head assembly DC motor bracket Screw Screw A
Screw B
M 2.6x4
DC motor bracket DC motor assembly
Band Front side
M 3x4
1-4-4. DC Motor Assembly 1. 2.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Remove the three screws (M 2.6 x 4), then remove the DC motor bracket. 6. Remove the torque limitter, wheel gear, planetary gear 1 assembly, and three DC gear bearings. 7. Cut the three bands. 8. Remove the two screws (M 3 x 4), then remove the DC motor assembly. 9. Remove one harness from the connector (CN205) on the MEC-15 or MEC-20 board.
DC gear bearing
Planetary gear 1 assembly MEC-15/MEC-20 board
DC gear bearing
CN205 Wheel gear
Torque li mitter Bands Harness
10. Attach the DC motor assembly in the reverse order of steps 1 to 9.
n When attaching the DC motor bracket, temporarily secure it with the three screws, then turn the DC motor bracket counterclockwise and fully tighten the screws.
UP-20/21MD V1
1-7
1-4-5. Stepping Motor Assembly
1-4-6. Grip Belt
1. 2.
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Remove the tray guide assembly (2). (Refer to Section 1-4-7.) 6. Remove the stepping motor. (Refer to Section 1-4-5.) 7. Remove the release lever spring. 8. Remove the three screws, then remove the stepping motor bracket in the direction indicated by the arrow. 9. Remove the grip belt.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Disconnect the harness from the stepping motor assembly. Remove the two screws, then remove the stepping motor assembly.
3. 4. 5. 6.
Stepping motor assembly
Harness
M 3x6
M 2.6x4 Grip belt
Release lever spring M 2.6x4
Stepping motor bracket
7.
Attach the stepping motor assembly in the reverse order of steps 1 to 6.
n When attaching the stepping motor assembly, set the assembly in the direction indicated by the arrow, then tighten the two screws.
1-8
10. Attach the grip belt in the reverse order of steps 1 to 9.
UP-20/21MD V1
1-4-7. Tray Guide Assembly (2)
M 2x6 Sensor guide assembly (2)
n For the replacement of the S11 sensor board, please buy tray guide assembly (2) because S11 sensor board is not prepared for spare parts. 1. 2. 3. 4. 5. 6. 7.
8. 9.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Remove the four screws (M 2.6 x 4), then remove the front beam. Remove one screw (M 2.6 x 4), then remove the electrostatic plate spring. Remove the two screws (M 2 x 6), two poli-wahers 2 and four claws, then remove the sensor guide assembly (2). Remove the two screws (M 2.6 x 4), then remove the tray guide assembly (2). Remove the one flexible flat cable from the connector on the S11 sensor board.
Two poli-washers 2
M 2.6x4
Flexible flat cable Electrode side Claws Connector S11 sensor board
Electrostatic plate spring Claws
Tray guide assembly (2) M 2.6x4
M 2.6x4
Front beam
M 2.6x4
10. Attach the tray guide assembly (2) in the reverse order of steps 1 to 9.
UP-20/21MD V1
1-9
1-4-8. S2/RIBBON Sensor Board
n
n
When routing the flexible flat cable, be sure to route it under the paper eject guide 3.
The three claws securing the S2/RIBBON sensor board are easily broken, therefore be careful not to break the hooks when removing and attaching the board. 1. 2. 3. 4. 5. 6. 7. 8.
9.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 1-3-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Remove the tray guide assembly (2). (Refer to Section 1-4-7.) Remove the four claws, then remove the sensor guide assembly (2). Remove the electrostatic plate in the direction indicated by the arrow. Pull out the two claws of the connector on the S2/ RIBBON sensor board, then disconnect one flexible flat cable. Remove the three claws, then the S2/RIBBON sensor board.
Paper eject guide 3 S2/RIBBON sensor board
Flexible flat cable
Sensor guide assembly
Electrostatic plate
Sensor guide assembly (2) Claws
Flexible flat cable
S2/RIBBON sensor board Claw CN1 Claw Claws Electrode side
Tray guide assembly (2) Claws
10. Attach the S2/RIBBON sensor board in the reverse order of steps 1 to 9.
1-10
UP-20/21MD V1
1-4-9. S1 Sensor Board
1-4-10. S8/S9 Sensor Board
n
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Remove one screw, disconnect one flexible flat cable, and remove the S8/S9 sensor board.
The claw securing the S1 sensor board is easily broken, therefore be careful not to break the hooks when removing and attaching the board. 1. 2. 3. 4. 5. 6. 7.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Remove the tray guide assembly (2). (Refer to Section 1-4-7.) Remove the two claws, then remove the pick roller assembly. Remove one claw, disconnect one flexible flat cable, and remove the S1 sensor board. Tray guide assembly (2)
Flexible flat cable
M 2.6x4
Claws Groove
S8/S9 sensor board
6. Attach the S8/S9 sensor board in the reverse order of steps 1 to 5. Spring
Flexible flat cable
S1 sensor board Pick roller assembly
8.
Attach the S1 sensor board in the reverse order of steps 1 to 7.
n When attaching the pick roller assembly, be sure to securely attach the spring of the tray guide assembly (2) to the groove.
UP-20/21MD V1
1-11
1-4-11. Eject Roller Assembly
1-4-12. Photo Sensor
1. 2.
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly (Refer to Section 1-4-1.) 5. Disconnect one harness from the connector (CN105) on the MEC-15 or MEC-20 board. 6. Remove the four claws from the mechanical deck chassis, then remove the photo sensor.
3. 4. 5. 6. 7.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Remove the tray guide assembly (2). (Refer to Section 1-4-7.) Remove the sensor guide assembly (2). (Refer to Section 1-4-8.) Remove the two claws, then remove the eject roller assembly.
Photo sensor
Claws
Sensor guide assembly (2)
Claws
Claw
Claw
Eject roller assembly
Tray guide assembly (2)
8.
Attach the eject roller assembly in the reverse order of steps 1 to 7.
TO MEC-15/ MEC-20 board CN105
Mechanical deck chassis
Photo sensor
7. Attach the photo sensor in the reverse order of steps 1 to 6.
1-12
UP-20/21MD V1
1-4-13. Interlock Switch Assembly
1-4-14. Limit Rubber
1. 2.
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Remove the tray guide assembly (2). (Refer to Section 1-4-7.) 6. Remove the limit rubber.
3. 4. 5. 6.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly (Refer to Section 1-4-1.) Disconnect one harness from the connector (CN203) on the MEC-15 or MEC-20 board. Remove one screw, then remove the interlock switch assembly.
Portion C
M 2.6x4 Front side A
B
Limit rubber Limit rubber cover
TO MEC-15/MEC-20 board CN203 Interlock swtich assembly
7.
Attach the interlock switch assembly in the reverse order of steps 1 to 6.
n When attaching the interlock switch assembly, make sure that the assembly is properly oriented.
7. Attach the limit rubber in the reverse order of steps 1 to 6.
m . When attaching the limit rubber, be careful of its .
UP-20/21MD V1
orientation, and attach A first and then B. After attaching the limit rubber, clean the portion C with alcohol.
1-13
1-4-15. Grip Roller 2 Assembly Grip roller 2 assembly
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
11.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Remove the tray guide assembly (2). (Refer to Section 1-4-7.) Remove the stepping motor bracket. (Refer to Section 1-4-6.) Remove one retaining ring, then remove the grip gear 2 and grip roller bearing. Remove discharge (midway) gear and one poliwasher. Remove the two pinch springs. Insert the protection paper in between the pinch roller and grip roller 2 assembly, then slowly pull out the grip roller 2 assembly in the direction indicated by the arrow. Remove the collar (right) from the grip roller 2 assembly.
Pinch roller
Protection paper
Grip roller 2 assembly Collar (right)
Hole Chassis
Pinch springs
E3
Poli-washer Discharge (midway) gear
Grip gear 2 Grip roller bearing
12. Attach the grip roller 2 assembly in the reverse order of steps 1 to 11.
n When attaching the grip roller 2 assembly, be careful not to damage it at the hole of chassis.
1-14
UP-20/21MD V1
1-4-16. Platen Roller
1-4-17. Pinch Roller
1. 2.
1. Remove the top cover. (Refer to Section 1-3-1.) 2. Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Remove the tray guide assembly (2). (Refer to Section 1-4-7.) 6. Remove the two pinch springs. 7. Remove one retaining ring, then remove the pinch roller in the direction indicated by the arrow. 8. Remove the pinch roller and two bearings.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) 3. Remove the front panel assembly. (Refer to Section 13-3.) 4. Remove the mechanical deck assembly. (Refer to Section 1-4-1.) 5. Remove the tray guide assembly (2). (Refer to Section 1-4-7.) 6. Remove the grip gear 2 and grip roller bearing. (Refer to step 7 of Section 1-4-15.) 7. Remove the two pressure springs. 8. Move the two pressure levers in the direction indicated by the arrow A, then remove the platen roller and two platen roller bearings in the direction indicated by the arrow B.
Bearing
Bearing E3 Pinch roller
Bottom of chassis
Pressure spring
Front side
Platen roller bearing
Platen roller Platen roller bearing B
Pressure spring
A Pinch springs
Pressure lever
9.
9. Attach the pinch roller in the reverse order of steps 1 to 8.
Attach the platen roller in the reverse order of steps 1 to 8.
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1-15
1-4-18. Cam Gear/Cam R Removal 1. 2. 3. 4. 5. 6. 7.
Remove the top cover. (Refer to Section 1-3-1.) Remove the ribbon panel assembly. (Refer to Section 1-3-2.) Remove the front panel assembly. (Refer to Section 13-3.) Remove the mechanical deck assembly. (Refer to Section 1-4-1.) Remove one flexible flat cable from the clamper. Remove the two screws, then remove the beam (1). Remove one retaining ring, then remove the cam R.
8. Remove the cam connecting shaft in the direction indicated by the arrow. 9. Remove the cam mounting bracket and two cam connecting gear bearings. 10. Remove the two spring pins, then remove the cam gear. 11. Remove the two sheets of cam felt from the cam mounting bracket.
Cam mounting bracket Spring pin
Cam connecting gear bearing
Flexible flat cable Clamper Cam gear M 2.6x4
Cam connecting Cam connecting Cam felts gear shaft bearing Cam gear Spring pin
Beam (1)
M 2.6x4
Cam R
E3
1-16
UP-20/21MD V1
Installation
m . Before attaching the cam R, raise the head assembly by .
.
rotating the cam L. When attaching the beam (1), temporarily secure it with the two screws and adjust the clearance between the positioning dowel and beam (1), then fully tighten the two screws. (Refer to Fig.2.) Apply grease to the cam connecting gear bearing and cam R. (Refer to Fig.1.) Grease, SONY (SGL-801) 50G Sony Parts No. : 7-651-000-11 Apply grease to the inside of the cam connecting gear bearing. Wipe off excessive grease if it is applied to adjacent areas.
Apply grease to the groove on the backside of the cam R.
Cam R
Cam connecting gear bearing
1. Rotate the cam L in the direction indicated by the arrow A, then raise the head assembly in the direction indicated by the arrow B. 2. Align the cam follower shaft with the groove inside of the cam R, then attach the cam R with one retaining ring. Cam follower shaft
Cam R
Groove Cam L A
Head assembly
B
Cam R
Grease
E3 Grease
Groove Cam follower shaft
Fig.1
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1-17
3. Insert the shaft (ø3, 170mm or longer) from the hole of the cam R through the hole of the cam L to fix the cam R and cam L. Positioning dowel Approx. 0.3 mm
1-5. Unleaded Solder Boards requiring use of unleaded solder are printed with a lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)
Beam (1)
: LEAD FREE MARK Fig.2
Cam L Hole
m . Be sure to use the unleaded solder for the printed circuit
Beam (1) Chassis Hole
Cam R
Cam R Shaft
.
.
board printed with the lead free mark. The unleaded solder melts at a temperature about 40 d higher than the ordinary solder, therefore, it is recommended to use the soldering iron having a temperature regulator. The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful.
Shaft
170mm or longer ø3 Shaft
4.
Attach the cam gear in the reverse order of steps 8 to 11 and 1 to 6 of “Removal”.
1-18
UP-20/21MD V1
Section 2 Electrical Alignment and Mechanical Alignment 2-1. Electrical Adjustment
n The UP-20 does not install the LCD. Therefore, when performing this alignment using the UP-20, be sure to connect a monitor to the UP-20.
2-1-1. Density Adjustment during Thermal Head Replacement This mode is used when replacing the MEC-15/MEC-20 board, thermal head, power, and parts.
1. Density adjustment The density must be adjusted during thermal head replacement. (1) For the density adjustment, print test pattern STEP (V) in advance by the method below before replacing the head and extract a reference sample. (2) After replacing the head, print STEP (V) again and adjust the head voltage so that the density is almost the same as that of the reference sample. (3) When replace the MEC-15, MEC-20 boards and thermal head, adjust the printing position of head direction. (Refer to Section. 2-1-1. item4) (4) After head replacement and voltage adjustment, reset the number of estimated head print sheets.
2. Extraction of sample for density adjustment (1) Set an ink ribbon and paper. (2) Set the power switch to ON while pressing the ← and → keys simultaneously. The printer then enters the service mode. (3) Message “HIT ANY KEY” is displayed. Press any key. (4) A menu is displayed. PRINT TEST PRESS [EXEC]
(5) Press the EXEC key to start printing. At that time, the printer controls the thermal head temperature until it reaches a proper temperature. . When the head temperature is low: The printer performs preheating and starts printing after the head temperature reaches a proper temperature. . When the head temperature is high: The printer performs cooling using a fan and starts printing after the head temperature reaches a proper temperature.
n If the head temperature is not proper, it may slightly take time to enter the print operation state after you press the EXEC key.
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2-1
3. Head voltage adjustment (1) Set the power switch to ON while pressing the ← and → keys simultaneously. The printer then enters the service mode. (2) Message “HIT ANY KEY” is displayed. Press any key. (3) A menu is displayed. (4) Press the ↑ and ↓ keys to display “HEAD V:”. (5) Press the ← and → keys to increase or decrease the head voltage parameter. Next, press the EXEC key to define the setting.
m . The head voltage does not change if you do not press the EXEC key. . By decreasing the parameter, the head voltage decreases and the density also decreases. .
By increasing the parameter, the head voltage increases and the density also increases. This parameter does not directly represent the head applied voltage value. When “2. THERMAL & EEPROM CHECK 01 ” executes under the mechanical adjustment state, clear the head voltage adjustment to default setting. Therefore, above adjustment must be performed again.
4. Printing position adjustment of head direction
m . Printing position adjustment performs when replacing IC102 on the MEC-15/MEC-20 board and thermal head. . The following adjustment must be performed if printout result is not center position on the sheet as to head direction. . When “2. THERMAL & EEPROM CHECK 01 ” executes under the mechanical adjustment state, clear the printing position adjustment. Therefore, following adjustment must be performed again. (1) Set the power switch to ON while pressing the ← and → keys simultaneously. The printer then enters the service mode. (2) Message “HIT ANY KEY” is displayed. Press any key. (3) A menu is displayed. (4) Press the ↑ and ↓ keys to display SVC1/SVC2/SVC3. Press the ← and → keys to move SERVICE MENU2. (5) Press the ↑ and ↓ keys and message then “P H SHIFT” is displayed, adjust so that the printing image becomes nearly center position on the print sheet by pressing the ← and → keys. . When image size is S and increase the numeral value, move the image to left side on the LCD display. . When image size is S and decrease the numeral value, move the image to right side on the LCD display.
5. Resetting the number of estimated head print sheets (1) Set the power switch to ON while pressing the ← and → keys simultaneously. The printer then (2) (3) (4) (5)
2-2
enters the service mode. Message “HIT ANY KEY” is displayed. Press any key. A menu is displayed. Press the ↑ and ↓ keys to display “HEAD PRN:”. Press the CLEAR key while pressing the EXEC key. The number of estimated print sheets is then reset.
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2-1-2. Output of Test Pattern (Internal Signal) in Service Mode (1) Set the power switch to ON while pressing the ← and → keys simultaneously. The printer then enters the service mode. (2) Message “HIT ANY KEY” is displayed. Press any key. (3) A menu is displayed. (4) Press the ↑ and ↓ keys to display “PATTERN” when printing other patterns. (5) Press the ← and → keys to display the required test pattern name. (6) Press the PRINT key to start printing.
n At that time, the printer does not control the thermal head temperature. The printer immediately enters the print operation when you press the PRINT key.
m . In the state where an error (e.g., no paper or no ribbon) exists, the printer operates with the error displayed. .
In this case, press the MENU key, then press the ← and → keys to display a service menu. Next, perform each operation described above. This test pattern cannot be output in the state where MULTI PIX is set to “2”. When MULTI PIX is other than “1”, a white frame may be put into the print result of a test pattern. In this case, set MULTI PIX to “1”, then print.
There are several types of test patterns. Four standard patterns are as shown below. 1 STEP (H) 2 STEP (V)
3 RAMP (H)
UP-20/21MD V1
4 RAMP (V)
2-3
2-1-3. Electrical Adjustment (Analog Video Block) This section describes regarding of the analog video signal adjustment. The following adjustment must be performed when replace the VPR-74 board.
Preparation 1. Composite video signal 75% FULL FIELD color bars (WHITE REF 100IRE) 2. S video signal 75% FULL FIELD color bars 3. RGB signal (for UP-21MD) WINDOW (WHITE 100IRE) 4. S video signal (for UP-20) WINDOW (WHITE 100IRE)
Entering the adjustment mode
. .
Set the power switch to ON while pressing the ← and → keys simultaneously and start the printer in the service mode. Display “SERVICE MENU3”.
SERVICE MENU3 /SVC2/SVC3/SVC4 IRE : 100/11/12/13 AGC : OFF/ON VA ADJUST : OFF/ON INPUT SEL : V/SV/RGB PICTURE : 33 G-DRIVE : 28 B-DRIVE : 28 SUB-BRIGHT : 14 VBS Y : A1 Q01A 1
S
m . In the case of UP-20, “INPUT SEL” is displayed as “VIDEO/SV”. . The italic character varies depending on the adjustment value. Entering the “VA ADJUST” mode Move the cursor to the “VA ADJUST” position and set it to “ON” position. The printer then enters the “VA ADJUST” mode. In this state, no signal is displayed on the monitor. Set it to “OFF” position to cancel the mode.
Cautions during adjustment
. .
Before adjustment, return all user adjustment items (including “COLOR ADJUST”) to the center position. Adjustment is performed in the SOURCE output mode unless otherwise specified.
2-4
UP-20/21MD V1
1. INT 4Fsc adjustment (NTSC) Conditions for adjustment 1. SOURCE/MEMORY: MEMORY 2. NTSC/PAL: NTSC
Spec.
Adjustment
TP405 (G-6): 14 M
1CT401(F-7):
1,431,818
± 80
14.3
Hz
2. INT 4Fsc adjustment (PAL) Conditions for adjustment 1. SOURCE/MEMORY: MEMORY 2. NTCS/PAL: PAL
Spec.
Adjustment
TP404(F-6): 17M
1CT403
1,773,447.5
± 80.0
(F-6): 17.7
Hz
3. INT 4Fsc adjustment (PAL) Conditions for adjustment 1. SOURCE/MEMORY: MEMORY 2. NTCS/PAL: PAL
Spec. TP406 (F-7): VCO DC
Adjustment 1CT402
(F-7): 14.1
2.0 ± 0.2 Vdc
4. Picture adjustment Conditions for adjustment 1. VA ADJUST MODE 2. INPUT SELECT: RGB (UP-20: displayed as “S-VIDEO”) 3. AGC: OFF 4. NTSC/PAL: NTSC
Spec. Monitor
Adjustment [SERVICE MENU3] [PICTURE:]
Adjust so that the red (or yellow, magenta, or white) in the diagonally striped portion is the maximum.
UP-20/21MD V1
2-5
5. G-drive adjustment Conditions for adjustment 1. VA ADJUST MODE 2. INPUT SELECT: RGB (UP-20: displayed as “S-VIDEO”) 3. AGC: OFF 4. NTSC/PAL: NTSC
Spec. Monitor
Adjustment [SERVICE MENU3] [G-DRIVE:]
Adjust so that the yellow (or white) in the diagonally striped portion is the maximum.
6. B-drive adjustment Conditions for adjustment 1. VA ADJUST MODE 2. INPUT SELECT: RGB (UP-20: displayed as “S-VIDEO”) 3. AGC: OFF 4. NTSC/PAL: NTSC
Spec. Monitor
Adjustment [SERVICE MENU3] [B-DRIVE:]
Adjust so that the white in the diagonally striped portion is the maximum.
7. AGC REF adjustment Conditions for adjustment 1. VA ADJUST MODE 2. INPUT SELECT: RGB (UP-20: displayed as “S-VIDEO”) 3. AGC: ON 4. NTSC/PAL: NTSC
Spec. Monitor
Adjustment [SERVICE MENU3] [SUB-BRIGHT:]
Adjust so that the white in the diagonally striped portion is the maximum.
2-6
UP-20/21MD V1
8. VBS Y adjustment Conditions for adjustment 1. VA ADJUST MODE 2. INPUT SELECT: VIDEO SIGNAL: COLOR BAR 3. AGC: OFF 4. NTSC/PAL: NTSC
Spec.
Adjustment
Monitor
[SERVICE MENU3] [VBS Y:]
Adjust so that the white in the diagonally striped portion is the maximum.
9. H position adjustment Conditions for adjustment 1. INPUT SELECT: VIDEO 2. INPUT SIGNAL: COLOR BAR
Spec.
Adjustment
TP402 (C-5): SWD HD TP410 (A-5): SYNC MONI
1RV201
(D-7): H POSI
SWD HD
SYNC MONI A
A = 100 ± 100 nS
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2-7
2-2. Mechanical Adjustment 2-2-1. Mechanical Adjustment Mode In this mode, the adjustment of the sensors installed in a mechanical deck and the assembly of mechanical parts are confirmed. The confirmation is carried out when replacing the mechanical deck parts.
m . Various information items of a mechanical deck are stored in IC102 on the MEC-15/MEC-20 board. .
Be sure to perform all mechanical adjustment after IC102, MEC-15 or MEC-20 board are replaced. The cleaning ribbon set (UPC-21CLN) supplied with this unit is required during adjustments of RBN TYPE and RBN CD sensors.
2-2-2. Entering the Mechanical Adjustment Mode 1. 2.
Turn on the power while pressing the DISPLAY and EXEC keys simultaneously. (Continue pressing them until MECHA JIG MODE appears on the LCD display.) The “MECHA SETUP” menu in the mechanical adjustment mode appears on the screen (or LCD display).
[MECHA SETUP menu]
[For OK]
3.
2-8
[For NG]
Press the ↑ and ↓ keys, move the cursor to the item to be adjusted or checked, and then press the EXEC key.
UP-20/21MD V1
4.
Adjustment and check are automatically automatically performed by the mechanical mechanical deck. After the adjustment adjustment and check are completed, the result appears on the screen (or LCD display). 5. When “OK” OK” is displayed, adjustment and check are completed normally. When abnormality is checked, an error code is displayed. (Take measures referring to the NG_CODE table (at the end of this manual)). 6. To exit exit the mechan mechanical ical adjust adjustment ment mode, mode, turn turn on the the power power again. again.
2-2-3. 2-2-3. Normal Normal Operation Operation Check Check and and Automatic Automatic Adjust Adjustment ment 1. SENS SENSOR ORS S CH CHEC ECK K Contents . Is communication between boards possible? . Operation check of each PAPER_JAM (S10), PAPER_EJECT (S11) and DOOR sensors. . Does the sensor of the item to be checked operate normally? (Refer to NG_CODE2.) . Are harnesses and mechanical parts connected properly? properly? Procedure (1) Pull out the the ribbon cartridge and paper tray, open the front panel. panel. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NO ANSWER (If NO ANSWER ANSWER is displayed, displayed, SCI communication communication with IC103 of the SY-299 SY-299 board is impossible. Therefore, the subsequent adjustment and check cannot be carried out.) NG command (E2) and NG data ( **)(One-byte data is displayed using a hexadecimal code. The hexadecimal code is converted into a binary code, and the bit whose “1” is set indicates the location where where NG occurs. Refer to NG_CODE2.) NG_CODE2.)
2. THER THERMA MAL L & EEP EEPRO ROM M CHEC CHECK K Contents . Does IC102 on the MEC-15/MEC-20 board operate normally? (The number of estimated sheets or the sensor information is stored in IC102.) . Do the thermistor of a thermal head, and the thermistor (THP201) on the MEC-15/MEC-20 board operate normally? . Are harnesses and mechanical parts connected properly? properly? Procedure (1) Move Move the cursor cursor to the desired desired item, press press the ← and → keys to select the item, item, and then press the the EXEC key. When the display display number is 00: 00: Check the thermistor thermistor and EEPROM EEPROM operation. operation. (The contents contents remain unchanged.) When the display display number is 01: 01: Check the thermistor thermistor and clear the contents contents of EEPROM EEPROM ( *). Conten ents ts to be clea cleare red: d: Numb Number er of esti estima mate ted d she sheet ets, s, numb number er of esti estima mate ted d hea head d she sheet ets, s, * Cont ShiftH, ShiftV, error history, head voltage parameter, and sensor information
n Be sure to adjust it by display number 01 when replacing the MEC-15/MEC-20 board or IC102 newly. Display . OK: 00: OK 01: OK OK . NG: NG command command (E3) and NG NG data ( **)(One-byte data is displayed using a hexadecimal code. The hexadecimal code is converted into a binary code, and the bit whose “1” is set indicates the location where where NG occurs. Refer to NG_CODE3.) NG_CODE3.) UP-20/21MD V1
2-9
[OK display in case of 00]
[OK display in case of 01]
3. HE HEAD AD HOME HOME CH CHEC ECK K Contents . Does the head position sensors (S8 and S9) operate normally? . Does the DC motor operate? . Are harnesses and mechanical parts connected properly? Procedure (1) Pull out out the ribbon ribbon cartridge cartridge and paper paper tray. tray. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NG command command (E1) and NG NG data (**)(One-byte data is displayed using a hexadecimal code. The value of the hexadecimal code code is an NG item. Refer to NG_CODE1.)
4. PP IN SENS SENS (S1) (S1) ADJ ADJUST USTMEN MENT T Contents . Automatic light-emitting light-emitting level and threshold level adjustments of PP IN (PAPER IN) sensor . Are harnesses and mechanical parts connected properly? Procedure (1) Insert Insert the paper paper tray with with print print papers. papers. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NG command command (E4) and NG NG data (**)(One-byte data is displayed using a hexadecimal code. The hexadecimal code is converted into a binary code, and the bit whose “1” is set indicates the location where where NG occurs. Refer to NG_CODE4.) NG_CODE4.)
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UP-20/21MD V1
5. PP LD SENS SENS (S2 (S2)) ADJU ADJUSTM STMENT ENT Contents light-emitting level and threshold level adjustments of PP LD (PAPER LOAD) sensor . Automatic light-emitting . Are harnesses and mechanical parts connected properly? properly?
m . For the mechanical deck labeled of initial serial numbers, print paper may be jammed during paper delivery after adjustment. Therefore, the following adjustment must be performed using automatic adjustments. . PP IN and PP LD sensors adjustments can be performed automatically during PRINT ADJUSTMENT and normal printing conditions. This may be adjusted automatically when normal printing at a first during set the power switch to ON again and executing of PRINT ADJUSTMENT after 2. THERM & EEPROM CHECK 01 is performed. Procedure (1) Insert Insert the paper paper tray with with print print papers. papers. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NG command command (E4) and NG NG data ( **) (One-byte data is displayed using using a hexadecimal code. The hexadecimal code is converted into a binary code, and the bit whose “1” is set indicates the location where where NG occurs. Refer to NG_CODE4.) NG_CODE4.)
6. RBN TYPE TYPE CD (S5 (S5 to to S7) S7) ADJUS ADJUSTME TMENT NT Contents . Automatic light-emitting level and threshold level adjustments of RBN TYPE0, 1, 2 (RIBBON TYPE) sensors. properly? . Are harnesses and mechanical parts connected properly? Procedure (1) Insert Insert a cleaning cleaning ribbon ribbon cartridg cartridge. e. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NG command (E5) and NG NG data (**) (One-byte (One-byte data data is displayed displayed using a hexadecimal code. code. The hexadecimal code is converted into a binary code, and the bit whose “1” is set indicates the location where where NG occurs. Refer to NG_CODE5.) NG_CODE5.)
7. RB RBN N CD (S3 (S3)) ADJU ADJUST STME MENT NT Contents . Automatic light-emitting light-emitting level and threshold level adjustments of RBN CD sensor . Does the ribbon motor operate? . Are harnesses and mechanical parts connected properly? properly? Procedure (1) Insert Insert a cleaning cleaning ribbon ribbon cartridg cartridge. e. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NG command command (E4) and NG NG data ( **) (One-byte data is displayed using using a hexadecimal code. The hexadecimal code is converted into a binary code, and the bit whose “1” is set indicates the location where where NG occurs. Refer to NG_CODE4.) NG_CODE4.)
UP-20/21MD V1
2-11
8. PR PRIN INT T AD ADJU JUST STME MENT NT Contents light-emitting level and threshold level adjustments of PP IN and PP LD sensors . Automatic light-emitting . Does irregular printing occur by the thermal head or gear? . Is an error found in the path system of paper? . Are harnesses and mechanical parts connected properly?
n Automatic adjustments of PP IN and PP LD sensors are operated when normal printing condition at a first during set the power switch to ON again and executing of PRINT ADJUSTMENT after 2.THERM & EEPROM CHECK 01 is performed. Procedure (1) Insert Insert a ribbon cartrid cartridge ge and paper paper tray. (2) Move the cursor to the desired item and press the EXEC key. Display . OK: OK . NG: NG comman command d and and NG data (H ‘**) (One-byte data is displayed using a hexadecimal code. The value of the hexadecimal code code is an NG item. Refer to NG_CODE4.)
9. SEN SENSORS SORS DA DAT TA Contents . The adjustment values (light-emitting level value, high-level value, low-level value, and threshold level value) of automatically adjusted six sensors are displayed. . Trouble historical information of mechanical deck (The error information that occurred during mechanical operation operation is read. Up to the last eight eight information items are stored. The contents contents of information correspond to the NG_CODE1 data. Press the CLEAR key to clear data. When clearing is completed, OK is displayed.) displayed.) Procedure Move the cursor to the desired item, press the ← and → keys to select the item, and then press the EXEC key. When display number is 00: 00: Trouble historical information information For 01: PP IN (S1) sensor For 04: RBN TYPE0 (S5) sensor For 02: PP LD (S2) sensor For 05: RBN TYPE1 (S6) sensor For 03: RBN CD (S3) sensor For 06: RBN TYPE2 (S7) sensor [Display example of trouble historical information]
2-12
[Disp [Display lay afte afterr troub trouble le histo historic rical al info informa rmatio tion n is clear cleared] ed]
UP-20/21MD V1
[Display example of sensor data]
Viewing the display of sensor adjustment value (Exa (Examp mple le)) 84 f5 0f 80 One-byte data is displayed displayed using a hexadecimal code. code. In each sensor, data is arranged in the order of “light-emitting level value” value ”, “high-level value” value ”, “low-level value” value”, and “threshold level value” value” from the beginning. (For the data described above, the LED voltage value is 84, the high-level value of PHTR is f5, the low-level value of PHTR is 0f, and the threshold level value is 80.)
Converting the displayed data into the voltage value of a sensor The displayed data indicates the value obtained when the voltage level (0 to 5.0 V) of each sensor is divided by 256. Therefore, the voltage value indicated using a hexadecimal code is obtained from the calculation below. (Examp (Example) le) When When the the hexade hexadecim cimal al code code is H ‘b3: H ‘b3 = D’ D ’ 179 ( ← The hexadecimal display is converted into a decimal display.) 5.0 (v) x 179/256 = 3.4 (v) ( ← Voltage value of sensor indicated by H ‘b3)
UP-20/21MD V1
2-13
Section 3 Sensor Arrangement and Functional Description
No.
Name
Type of sensor
Function
1
Head position sensor (S8, S9)
Photo Interrupter
Detects the up/down position of the head
2
Jamming sensor (S10)
Photo Interrupter
Detects the paper end
3
Delivery flap sensor (S11)
Photo Interrupter
Detects the amount of delivery
4
Paper-in sensor (S1)
Reflector
Detects the paper exists or not into the paper feed tray
5
Paper feed sensor (S2)
Reflector
Defects the paper extremity
6
Ribbon type detection sensor (S5-S7)
Reflector
Detects the type of the ribbon
7
Ribbon cueing sensor (S3)
Reflector
Detects the cue of the ribbon
8
Front panel opening detection
Mechanical
Detects the opening/closing of the front panel
9
Interlock sensor
Mechanical
Detects the installing of the bottom cover on the unit
m . Front panel opening detection sensor at No.8 is mounted on the SE-642/SE-683 board. .
Regarding to arrangement of the SE-642/SE-683 board, refer to “1-1. Board Location”. For more details of each sensor, refer to “4-3-4. Outline of Sensor Detection Circuits”.
UP-20/21MD V1
3-1
Section 4 Circuit Operation Description 4-1. Digital Video Signal Processing Block 4-1-1. Outline The main functions of the digital signal processing block on the VPR-74 board are as follows: 1. Converts a video input signal from analog to digital and stores it in memory (DRAM). (Capture) 2. Color-adjusts the image data stored in memory using a color adjustment circuit, and then converts the data from digital to analog and outputs it to the analog signal processing block on the VPR-74 board as a monitor output signal. (Monitor output) 3. Color-adjusts the image data stored in memory using a color adjustment circuit and then outputs it to the head control block through a masking block as print data. (Print data output) 4. Converts a video input signal from analog to digital, converts the signal from digital to analog as it is, and outputs it to the analog signal processing block as a monitor output signal. (Source output) The digital signal processing block on the VPR-74 board consists of the following blocks. . CPU block . Memory (DRAM) block . Memory control (ASIC) block . Sampling clock generation block . Color adjustment block . Masking block
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4-1
4-1-2. Flow of Image Signal in Each Operating Mode The operating mode on the flow of an image signal in a digital signal processing block can be classified into the following four modes. . Source mode . Memory mode . Capture mode . Print data transfer mode
Source mode In this mode, a video input signal is directly output to the monitor via a digital signal processing block. The flow of an image signal is as described below. The RGB analog signal input from an analog signal processing block is converted from analog to digital as an eight-bit digital signal, respectively. This signal is passed through a DRAM control circuit (IC1001) and adjusted in color using a color adjustment circuit (IC701). After that, the image size is adjusted by the blanking produced using a CPU and DRAM control circuit. The resultant signal is converted from digital to analog again as an analog signal and output to the analog signal processing block.
4-2
UP-20/21MD V1
Memory mode In this mode, the image data fetched into DRAM is output to the monitor. The flow of an image signal is as described below. The digital image data fetched into DRAM is read using a DRAM control circuit (CXD9111R: IC1001) and converted from 32 bits to 8 bits. After that, the image data is adjusted in color using a color adjustment circuit (IC701), and the image size is adjusted by the blanking produced using a DRAM control circuit. The resultant data is converted from digital to analog and output to the analog signal processing block.
UP-20/21MD V1
4-3
Capture mode In this mode, a video input signal is converted from analog to digital and fetched into DRAM. The flow of an image signal is as described below. The video signal input from an analog signal processing block is converted from analog to digital as an eight-bit digital signal. The converted video signal is converted from 8 bits to 32 bits in a DRAM control circuit (CXD9111R: IC1001), and expanded in DRAM.
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UP-20/21MD V1
Print data transfer mode In this mode, the image data that exists in DRAM is output to the SY-299 board as print data during printing. The flow of an image signal is as described below. The data request signal from the SY-299 board is input to CPU (IC501). The CPU controls a DRAM control circuit (CXD9111R: IC1001), and the DRAM control circuit converts the image data in DRAM into print data and outputs it. After that, the data is color-adjusted, colorrotated, and converted from RGB to YMC using a color adjustment circuit (IC901). Next, the data is masking-converted using two masking ROMs and output to the SY-299 board as print data.
UP-20/21MD V1
4-5
4-1-3. Basic Operation Timing and CPU Block The operation of the digital signal processing block on the VPR-74 board is controlled and managed according to the command from the SY board by CPU. CPU operates with the VD signal (SWD_VD) switched into EXT or INT as reference and performs each setting and control for a DRAM control circuit (CXD911R). The main functions of a CPU block for digital signal processing are as follows: . Reception and execution of command from SY board . VF judgment (synchronous management) of video input signal . Output of blanking signal . Control of DRAM control circuit . Write of color adjustment data . Write of caption data
CPU memory map The memory map of CPU is shown below.
000000
Program ROM
01FFFF
200000 DRAM controller register .
400000 Color adjustment circuit (Print) 600000 Color adjustment circuit (Monitor) 6007FF FFEC00 CPU internal SRAM FFFBFF FFFE40 CPU internal register FFFFFF
4-6
UP-20/21MD V1
Flowchart of CPU START Initialize MAIN:
SWD_VD IRQ0
VF judgment and setting of counter for CPU_VD creation SWD_HD
IRQ1
VF judgment and VBLANK generation PRNT_DREQ
IRQ2
Setting of print data output IMCAP
IRQ4
Execution of highest-speed image fetch function SCI
RXI
Each DMA flag
DRAM controller setting
Color adjustment flag
VBLANK
Caption flag
VBLANK
Command flag
UP-20/21MD V1
Command storage and command flag setting
VBLANK
VBLANK
Write of color adjustment data
Write of caption data
Command execution
4-7
Time-sharing timing
(1)
(2)
VBLNK
DLYD_HD
(3) A
B
C
HBLNK (1) VBLNK period DRAM access VF judgment
.
.
Write of color adjustment data
.
(2) HBLNK period DRAM access
.
(3) Effective screen period DRAM access Input and output of capture or monitor output image data
.
.
(A) DRAM refresh (B) DRAM access of capture or monitor output image data (C) Output of print data, and write or read of caption data
Command communication with SY board The command communication with the SY board is performed by the bi-directional asynchronous serial communication in which the serial communication port of CPU is used. Asynchronous serial communication 1 . Start bit: 8 . Data bit: 1 . Stop bit: . Parity bit: None . Baud rate: 19200 bps
4-8
UP-20/21MD V1
Synchronous control The external sync signals (EXT_VD and AFC_HD) and internal sync signals (OVD and OHD (IC406 CXD1217QN)) produced in an analog signal processing block are switched using an SRC/nMEM signal from CPU (IC501) and sent to the CPU and DRAM control circuit as a V sync signal (SWD_VD) and H sync signal (SWD_HD). The AFC_HD signal is AFC-processed in the analog signal processing block. If the AFC processing should be interrupted, the operation of a digital signal processing block is not guaranteed. The CPU to which the SWD_HD and SWD_VD sync signals were input compares each phase for VF judgment (frame judgment). This VF judgment performs processing so that the context is not lost even if a jitter slightly exists in the sync signals. Therefore, odd and even fields are not misplaced for capturing. The SWD_VD sync signal is also AFC-processed by the software in CPU. Even if noise is mixed in the SWD_VD sync signal, therefore, the noise component is canceled. A virtual VD signal is generated by CPU even if the SWD-VD signal is interrupted and even if the period is changed (CPU_VD). The CPU_VD signal is input to the DRAM control circuit.
Output of blanking signal The V blanking signal that determines the position of the effective screen in the vertical direction counts the falling of an SWD_HD signal after an SWD_VD signal is input to CPU, and it is output as a CPUVBLNKV signal. For the H blanking signal that determines the position of the effective screen in the horizontal direction, a BLNK signal is output as the blanking signal for input image data capture and memory image data monitor output operations by the setting value set to the control register of a DRAM control circuit and the input of a CPUVBLNKV signal.
Control of DRAM control circuit Capture operation . Monitor output operation . Print data output . DRAM refresh operation . Random access operation To perform the operations described above, each mode is set to the register of a DRAM control circuit. The DRAM control circuit triggers VD and HD signals for operation. Each setting is not restricted by video timing. The setting value is latched using a VD signal and validated after the VD signal. .
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4-9
Write of color adjustment data The data for a conversion table is written in CXD8869Q (color adjustment circuit) during V blanking.
Write of caption data Caption data is set to a DRAM control circuit so as to output an access trigger (RATRG). The DRAM control circuit expands the data on DRAM.
4-1-4. Memory (DRAM) Block The memory of a four-frame uses 64M-bit SDRAM
x 1.
The memory space is constituted by 600 (RAS) x 256 (CAS) x 32 bits for each color of one frame image memory. However, the memory space is apparently considered as 600 (RAS) x 1024 (CAS) x 8 bits during use by storing eight-bit image data proportionally to four-dot pixels (four-dot pixels in one address) in the direction of depth. The conversion of eight bits to 32 bits and vice versa is performed using a DRAM control circuit.
Memory Configuration (Four-Frame)
4-10
UP-20/21MD V1
4-1-5. Memory Control Block A four-dot pixel is stored in one address for high-speed processing using SDRAM of 32 bits in the direction of depth so as to double the apparent SDRAM access speed. This processing is performed using a standard cell circuit. The circuit is controlled by CPU. Conversion of 8 bits to 32 bits and vice versa in case of input image data capture (FULL) The eight-bit image data input to this circuit is stored in each line buffer in the order below.
The main operation and setting of a DRAM control circuit are as follows: . Various capture operations FULL image SPLIT 2 image SPLIT 4 image Capture shift size Write DRAM address By setting the items above, the DRAM control circuit automatically performs the capture operation in synchronization with VD and HD signals. . Print data output operation Number of output data items Read DRAM address The print data output operation is performed by setting the items above and by triggering from CPU.
UP-20/21MD V1
4-11
Various monitor output operations FULL image SPLIT 2 image (Decimated in the horizontal and vertical directions.) 4IN1 image (Equal to a SPLIT 2 image as IC operation.) Monitor output shift size Read DRAM address By setting the items above, the DRAM control circuit automatically performs the monitor output operation in synchronization with VD and HD signals. . Random access operation Write DRAM address Write data The random access operation is performed by setting the items above and by triggering from CPU during V blanking period. . DRAM refresh operation Number of refresh access addresses By setting the item above, the DRAM control circuit automatically performs the DRAM refresh operation. (RAS only refresh) .
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UP-20/21MD V1
4-1-6. Color Adjustment Block On the video side, the color of image data is adjusted using an SRAM conversion table in IC701 (CXD8869Q). On the print side, it is adjusted using a conversion table in IC901 (CXD8869Q). The table data is provided in the program ROM of CPU. On the video side, the table data is rewritten during V blanking period. On the print side, it is rewritten immediately before printing. On the print side, the color rotation and RGB-YMC conversion of print data are also performed as well as color adjustment. The flow of data shown below is obtained according to the print color. CPU controls the print setting of each color by receiving the color information command.
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4-13
4-1-7. Sampling Clock Generation Block This block generates a sampling clock, locks the phase to the “high” level of external and internal sync signals, and distributes the clock to the DRAM control circuit or color adjustment circuit. The clock frequency is 18.425196 MHz for NTSC and PAL in common. The operation timing is shown below.
XT1A (IC603)
SWD_HD HDB (IC603) CKO1A (IC603) O_HDO
O_HDOD AD_CLK TAP1 (IC607) DLYD_HD
4-1-8. Masking Block The masking block corrects the difference between the ideal reproduction color and the three primary colors (Y, M, and C) of printed materials using a two-ROM data conversion system of main masking ROM and sub-masking ROM. The MAIN, SUB1, SUB2 and print color information signals output from a color adjustment circuit (on the print side) are input to the main and sub-masking ROMs. The data that was masking-corrected using a two-ROM conversion table is latched by IC905 and IC906 and output to the SY-299 board as eight-bit print data.
4-1-9. A/D and D/A Conversion Blocks The A/D conversion block consists of three A/D converters (CXD1176Q IC350 to IC352). The analog RGB signal input from an analog signal processing block is clamped using a clamp pulse (nCLAMP signal) and adjusted in gain using a CLP_REF signal that is input to the VREF pin of an A/D converter. In the D/A conversion block, an eight-bit digital RGB signal is converted into an analog video signal using an encoder (BH7243KV IC407) incorporating a three-channel D/A converter.
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UP-20/21MD V1
4-2. Analog Video Signal Processing Block 4-2-1. Outline The analog video signal processing block mainly consists of the following two blocks. 1. Interface block (IF-851 board) The interface block mounts a relay for THROUGH/EE selection. All video signals are input and output from and to the external equipment via this block. 2. Analog video signal processing block (Part of VPR-74 board) A part of the VPR-74 board consists of an analog video signal processing block. Moreover, this block can be mainly classified into a video decoder block (that fetches the input video signal into memory) and video encoder block (that monitors the digital video signal from memory). I2CBUS is almost used for the setting and adjustment of an analog video block. The analog video block is controlled by the SY-299 board. The main functions of the analog video signal processing block are as follows: Selection of input signals (composite video, S video, and RGB signals) Conversion of composite video and S video signals into RGB signal (Decoding of video signal) AGC (Automatic Gain Control) for input signal User adjustments (HUE, COLOR, GAIN, OFFSET, MONITOR-RGB, etc.) OSD (On Screen Display) function Selection of monitor output signal (SOURCE/MEMORY) Sync signal processing (NTSC/PAL detection, signal detection, sync separation, and AFC) Conversion of RGB digital signal into composite video and S video signals (Encoding of video signal) .
.
.
.
.
.
.
.
4-2-2. Interface Block (IF-851 Board) A monitor output signal is switched into THROUGH or EE using this block. By using a mechanical relay, the monitor output of an input signal can be performed even if the power of this unit is off.
R122 0
V_IN
R113 150 R114 150
CN106 IN D113 RD9.1M-T1B D114 RD9.1M-T1B
EMI OUT GND FL107 NM
R129 0
RY107 8
0 1
7
CN107 5 3 6
1
2 1
IN
FL114 NM
EMI OUT GND
V_OUT
D127 RD9.1M-T1B D128 RD9.1M-T1B
UP-20/21MD V1
4-15
4-2-3. Analog Video Signal Processing Block (Part of VPR-74 Board) 1. Input signal processing block (Decoder block) (1) SYNC ON GREEN discriminator circuit This board mounts a discriminator circuit that separates a sync signal from a green channel when no sync signal is input at the time of an RGB signal input. IC102 discriminates the existence of a sync input signal and controls a video switch (IC103) that switches green input and sync input signals.
R124 3.3k
R112 10k
C121 0.47uF
Q102 2SC4116YG-TE85L D101 1SS123-T1
C174 22uF 6.3V
Q104 2SC4116YG-TE85L
1
C105 22uF 6.3V
2
R116 2.2k
IC102 (1/3) MC74HC4538AFEL
2
1
6 CR 6 Q
C
7
RESET
R122 47k
IC103 NJM2233BM(TE2) 7
2 CTL GND
C122 0.001uF
R127 2.7k
IC102 (2/3) MC74HC4538AFEL
C129 0.1uF
R135 1k
8
R136 1k
14
15 C
IN2
Q
3
C106 330pF
+V IN1 OUT
3 4
R119 2.2k
1
5
3
R115 22k
C126 22uF 6.3V
R130 470k
CR 10 Q
11 12
9
RESET L105 10uH
L106 10uH
Fig. 1-1
4-16
Q
13
C124 22uF 6.3V
SYNC ON GREEN Discriminator Circuit
UP-20/21MD V1
(2) Y/C separation block A digital comb filter (IC109) is used to separate the luminance signal (Y) and chroma signal (C) of a composite video signal. The input composite video signal is passed through a band rejection filter (FL101), amplified by about two times, and input to pin 15 of IC109. The separated luminance signal is output from pin 6 and passed through a band rejection filter. After that, the signal is input to the video switch (IC104) that switches the luminance signal of an S video signal. In the same manner as described above, a chroma signal is output from pin 8 and input through a band rejection filter to the same video switch. L109 10uH
R137 10k
L103 10uH
C131
C114 22uF 6.3V
L108 10uH
0.022uF
C132 10uF 16V
R134 150k
C135 0.1uF
C137 100uF 6.3V
C118
R151 1k
C119 0.1uF
0.1uF
4 3 2 1 0 9 8 7 6 5 4 3 2 2 2 2 2 1 1 1 1 1 1 1
C125 0.1uF
1 0 1 0 1 C C T N T P E E E E D D N L U I B T T T D D A C O V R R _ _ D O O L M M K N C L G C
C7 25
12 C6
GND_AD
C5
IBIAS
C4
REF_DA
26
10
28
C120 0.1uF
9 C3
COUT
C2
VCC_DA
29
8
30
7 C1
YOUT
IC109 MC141627FT
31 C0 32
6
R129 100
GND_DA 5
D7
FILIN
D6
BIAS
D5
OVCC
33
4
34 35 D4
Q106
R131 10k
11
27
R126 10k
R169 33 C130 47uF 6.3V
VCC_AD
S S A P 3 2 1 0 Y D D D D B
36
DTC124EKA-T146
C S T 2 N D D / _ _ C D C S M L H N C F / A N P V G V
F P B / B M O C
3
C115 10uF 16V
2
R132
PCO
47
1
C127
R133 10k
7 8 9 0 1 2 3 4 5 6 7 8 3 3 3 4 4 4 4 4 4 4 4 4
Fig. 1-2
R155 1k
C128
47uF 6.3V
R154 33
0.1uF
R128 33k
Y/C Separation Block
(3) Composite sync signal separation circuit A composite sync signal (CSYNC) is separated by IC203. The composite sync signal of the Y signal input to pin 6 of IC203 is separated by IC203, and the Y signal is output from pin 3. The output signal at pin 3 is positive-synchronous. Therefore, the output signal is inverted by Q201 so that it is negative-synchronous.
DEC_Y
007-N4
007-N4 007-N5
DEC_Y
DEC_C
*EXT_CSYNC
Q201 2SC4116YG-TE85L
IC203 BA7046F-E2 R202 10k
8
3
4
VCC PHCOMP
VIN
C208 1uF
6
V 3 . 6
SYNCOUT
HOSC
HDOUT
VDOUT GND 5
Fig. 1-3
R211 330
7
2
UP-20/21MD V1
D_SYNC
DLYD_SYNC
R201 1k 010-B3
DEC_C
TP201 TP202 TP205
A+5V-1
1
9 F 1 u 2 2 C 2
R205 100k
R208 470k C209 0.001uF
7 F u 0 2 1 C . 0
Composite Sync Signal Separation Circuit
4-17
(4) Decoder block On this board, the Y/C jungle (CXA2076Q IC204) for a color television is used for decoding of a video signal. This circuit is compatible with both NTSC and PAL systems. It integrates luminance signal processing, chroma signal processing, RGB signal processing, and sync signal processing into one chip. Each adjustment and setting are controlled by I 2CBUS. The input luminance and chroma signals are input to pins 55 and 57 of IC204. After each processing has been performed, the input signal is output from pins 22, 24, and 26 as an RGB signal. A VBS/S video signal is delayed by the processing in IC204. Therefore, the signal passed through a delay line (DL101) of 350 ns is used for sync separation so as to make the timing of a video signal coincide with that of a sync signal. (Input signal at pin 56) The hue and color that the user adjusts are adjusted by IC204. IC211 is a 1H CCD delay line for PAL. A+9V-1 L203 10uH
Q205 2SC4116YG-TE85L
C259 47uF 16V R219 2.2k C251 47uF 16V
Q204 2SA1586YG-TE85L R218 1.8k
F 3 2 p 2 0 C 0 1
C236 0.1uF
R228 2.7k
C246 0.1uF
R221 100 R220 470
z H K 0 5
F u 6 7 2 4 2 0 C 0 . 0
R216 220
k 2 0 2 3 2 F 3 3 k 8 R u 2 0 2 7 2 1 2 4 R C . 0
3 0 2 X
0 7 4 5 2 2 R
R217 220
R229 1k
C252 2.2uF 50V
C250 1uF 50V
C258 0.1uF
R230 1k
R231 1k
F 8 u 3 1 F 2 0 u C 0 . 7 4 0 4 2 0 C 0 . k 0 7 6 2 2 . 5 R
A_GND F 4 4 u 2 1 C . 0
C247 0.1uF C253 0.1uF
1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 5 5 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 A L M T N N L 2 F D A L L D C V U I I I C E N R I I S S O S S F C R G E F F C H V S V I D C C 2 V D N F L Y A S
C232 10uF 16V BLHOLD
C216 0.1uF
52
VD-OUT/VPROT
CVIN
C220 0.47uF
53
C234 10uF 16V
54
C227 10uF 16V
55
F T 1 C H T F U C S S U O O C O C O H D V W G W / H D A A S V E N I P VD+OUT/VPROT C F A
DCTRAN
56
C222 0.1uF
57
30 ABLFIL ABLIN/VCOMP
59
27
R250 39
25 GSH
X358
ROUT
23
4.43
C212 15pF
RSH
63
21 FSCOUT
SVCC2
64 F E 1 R D M N C G S S
X202 3.579545MHz R215 1.5k
C256 0.1uF
22 NC
X201 R214 4.433619MHz 470
C255 0.1uF
24 X443
61 62
C211 15pF
C254 0.1uF
26 BSH GOUT
60 R213 15k
R234 4.7k R233 4.7k
BOUT
SVCC1 APCFIL
C213 0.47uF
28
R232 1k
IKIN
IC204 CXA2076Q-TL
TEST 58
C215 470pF
C273 10uF 16V
29 EXTSYNCIN CIN
C241 47uF 16V
31
VTIM
YIN
C221 0.47uF
C261 10uF 16V
32
T U O _ Y R -
T U N N T O I I 2 U _ T T _ _ D O N N N N N N Y U E Y Y N P 1 I I I 2 I I I B O R R B G C S 1 1 1 S M 2 2 2 - Y Y - - S S Y R G B Y Y R G B
20
R235 4.7k
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
TP203
TP204 3.58
1 1 1 1 1 1 1 1 1 1
9 F 2 u 2 1 C . 0
F 3 3 u 2 1 C . 0
C230 0.1uF
DEC_YOUT FSC
F u 1 0 . F F 9 2 0 u u 3 4 1 1 2 2 0 0 6 C C . 0 7 . 2 0 3 0 0 2 1 2 R C
C274 47uF 16V
C257 0.1uF
R236 4.7k
F F F 5 8 9 u u u 4 4 4 1 1 1 2 2 2 0 0 0 C C C . . . 0 0 0
R224 1M
C224 0.001uF
C225 0.001uF
R257 0
NM
9
VP1 16 VI_R-Y
1
IC211 TDA4665T/V5-118
VP2 11 VO_R-Y
14
12 VI_B-Y
5
VO_B-Y
SAND NC1
7 4 8
IC2
NC2
IC1
NC3
4-18
C272 10uF 16V
C260 0.1uF
6
13 15 IC3 GND1 10
Fig. 1-4
2
NC4 GND2 3
Decoder Block
UP-20/21MD V1
(5) HD generation circuit The HD signal output from pin 37 of IC204 is adjusted to the proper phase and pulse width by IC207 (monostable multivibrator) and sent to the frame memory block as an HD (horizontal sync) signal for fetching memory. AFC (Automatic Frequency Control) processing is performed for this HD signal. A+5V-1
R239 3.9k H POSI C275 47uF 6.3V
R244 6.8k
IC207 (1/3) MC74HC4538AFEL
3
IC207 (2/3) MC74HC4538AFEL
2
RV201 2.2k 1
2
1
15
CR 6 Q
C
14 CR 10 Q
C
11
5 4
7
9
12
Q
RESET
3
C264 0.001uF
010-B3
AFC_HD
Q
RESET
13
C269 0.001uF
IC208 (1/3) MC74HC4538AFEL
R240 2.2k
R245 2.7k
IC208 (2/3) MC74HC4538AFEL 2
1
14
15
CR 6 Q
C
C265 0.0022uF
C
CR 10 Q
11
5 4
7
9
12
Q
Q
RESET
RESET
3
13
C270 0.0022uF
Fig. 1-5
HD Generation Circuit
(6) Demodulation axis correction circuit Since, in a television circuit (IC204) for the consumer, the demodulation axis is not orthogonal for NTSC, a matrix circuit (R241 to R249) is inserted into an RGB signal line so as to correct the demodulation axis to an orthogonal axis. For PAL, the demodulation axis is orthogonal. Demodulation is not related when an RGB signal is selected. In this case, therefore, the matrix circuit must be turned off. The matrix circuit is switched to ON or OFF by IC206 and IC210. R248 470
IC206 TC7S66FU(TE85R)
DEC_G
009-B3
DEC_R
009-B3
DEC_B
009-B4
C267 0.1uF
R241 470 5
1
R246 2.2k
2
GND 4
3
IC210 TC7S66FU(TE85R) 5
1
C268 0.1uF
2
R247 4.7k
R249 470
GND 4
3
R242 10k
IC205 TC7W00FU(TE12R) N/P
007-B9,009-B8,010-M5
INPUT_SEL1
009-B9,010-B5
8 1 2 5 6
VCC 1A
1Y
7
1B 2A
2Y
2B GND 4
3
C266 0.1uF
Q206 DTC124EKA-T146
Fig. 1-6
UP-20/21MD V1
Demodulation Axis Correction Circuit
4-19
(7) AGC (Automatic Gain Control) circuit This unit mounts a peak AGC circuit that has actual results on the medical market. The peak value of the RGB signal output from IC204 is sampled by Q301, Q302, and Q303. The resultant signal is passed through a low-pass filter (R314 and C306) and then input to the operational amplifier (IC302). The control level is properly adjusted by IC302. The input signal is then passed through a switch (IC307) for manual gain adjustment (output signal at pin 3 of IC303) and input to the control pin of GCA (Gain Control Amplifier) (IC304 to IC306).
R312 1.8k
R351 330
1
2
IC306 BA7655AF-E2
Q306 4 XN2501-TX
C313 47uF 6.3V
8 1
FL303 3
5
R321 1k
Q303 XN4601-TW
6
1
5
R309 33
3
2
8 5 4 1 9 3 6 8 5 4 1 O3 O2 I2 7 IN LPF OUT FG1 G1 G2 G3 G4 O1 I1 FG2
CTL1 C325 0.1uF 7
5
IN2 OUT2
19 18 16 15 10 13 12 20 2
4
2
VCC IN1 OUT1
6
R318 560
CTL2 GND
3
4
C321 0.1uF
R326 1k
C307 10uF 16V
R322 8.2k 3
IC302 LM358PW-E05
8
VCC IN+1 OUT1
1
C305 10uF 16V
IN-1 5
R314 2.2k
7
IN+2
OUT2
8
6
C306 47uF 6.3V
R337 10k
IC307 TC4W53FU(TE12R)
2
R313 0
C329 0.1uF
R315 22k
IN-2 GND
R323 2.7k
4
5 A
VDD
C316 0.1uF R327 15k
6
1
R328 470
Q307 DTC124EKA-T146
7 INH VSS VEE
D301 UDZ-TE-17-4.7B
C326 0.1uF
2
4
3
C301 0.1uF
R324 10k
Fig. 1-7
AGC Circuit
(8) EVR (electronic volume) adjustment circuit Adjustment is partially performed using an electronic volume by IC303. IC303 has a five-channel internal DA converter. The four channels of it are used for “VBS gain”, “offset”, “AGC gain”, and “manual gain”, respectively. Adjustment is performed by I 2CBUS. (9) EEPROM EEPROM (IC301) is mounted to store the setting and adjustment values of this board. This EEPROM writes or reads data by I 2CBUS.
4-20
UP-20/21MD V1
2. Output Signal Processing Block (Encoder Block) (1) Video encoder block On this board, BH7243KV (IC407) (made by ROHM) is used as the encoder of a video signal. This circuit incorporates an eight-bit, three-channel DA converter and video encoder. By inputting a subcarrier and composite sync signal, an eight-bit RGB digital signal can be converted into a composite video signal by one chip. The output of RGB, S video, and composite video signals can be driven in 75 ohms. Moreover, this circuit has an internal OSD (On Screen Display) selector switch. Setting and adjustment are all performed by I 2CBUS. An OSD character signal is sent from the SY299 board. IC409 MM1031XML
2
R463 3.3k
VCC
DACLK
3
SI
C457 0.1uF
TP703
C458 0.1uF SO
1
GND
R464 1k
4
3 3
R416 33 4 5 6 7 A A A A D D D D R R R R % % % %
L402 10uH C410 0.1uF
8 1 F 4 u R 1 . 0
R417 33
C435 100uF 6.3V
D K 4 5 6 7 K A L G 1 N D L A A A A L D C E D I V C T T T T C S S R N C D V A A A A D V G S D D D D S A R R R R O
%RDA3 33
%RDA1
34
%RDA0
35
%GDA7
36
%GDA6
37
%GDA5
38
%GDA4
39
%GDA3
40
%GDA2
41
%GDA1
42
%GDA0
43
%BDA7
44
%BDA6
45
%BDA5
46
%BDA4
47
SYNCOUT
RDATA2
BFPOUT
RDATA1
YTRAP
RDATA0
VOUT
GDATA7
TEST 12
COUT YOUT
11
AVCC2
GDATA3
AGND2
GDATA2
BOUT
GDATA1
GOUT
GDATA0
ROUT
BDATA7
NC2
BDATA6
NC1
BDATA5
OSDOFF
BDATA4
OSDSW
2
0.1uF
9 8
20
R471 680
7
V+2 YOUT
9 10
YIN2
YSAG
GCACTL1/MUTE
12
CLAMP_REF
VOUT
CLAMP
VSAG
CIN1
COUT
11
19
14
17 18
CIN2/INSEL GCACTL2/PWRSAVE
R468 1k L404 10uH
C464 0.1uF
4
16
V+1 YIN1
C466 0.1uF
7
5 6
13
WIDE
SDCOUT C465 47uF 6.3V
CHARA
C467 0.1uF
BLANK
6
GND
5
8
4 3 2 1
T 3 2 1 0 F U A A A A F O T T T T O D C A A A A C N A D D D D A G D B B B B D D B
BDA7-0
R470 1k R469 1k
10
GDATA4
C460
C461 1uF
13
GDATA5
3
R465 1M
14
GDATA6
1
C459 0.1uF
C463 1uF 16 15
48
IC407 BH7243KV
15
C462 0.1uF
N N L 3 I I A C C N P N N Y / Y S T S N C
RDATA3
%RDA2
IC410 NJM2538BV(TE2)
R467 390
2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1
C411 47uF 6.3V
0 7 A D B
R466 2.7k C434 0.1uF
9 1 4 C
T U O C A D G
T U O 1 C C R G B A C N D N D N D D V I S I S I S R A R O G O B O
9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6
3 2 1 0 A A A A D D D D B B B B % % % %
BDA7-0 BDA7-0 BDA7-0
1 F 2 F 6 F 8 F 5 F F 9 2 u 2 u 2 u 2 u 2 u 2 u 4 1 4 1 4 1 4 1 4 1 4 1 C . C . C . C . C . C . 0 0 0 0 0 0
2 F 3 u 4 1 C . 0
V 3 . 6 1 3 F 4 u C 7
GND
TP403
4
Fig. 1-8
UP-20/21MD V1
Video Encoder Circuit
4-21
(2) Sync generator block A sync signal for the monitor output must be generated by this unit when a memory image is selected for the monitor output or when no input signal exists. This circuit is peripheral circuit IC406. IC406 is a sync signal generator compatible with NTSC and PAL systems. IC406 generates video pulses (CSYNC, ODD/EVEN, HD, VD, and SC signals) by inputting a clock. These video pulses are sent to IC407 and a frame memory block. NTSC and PAL are switched by Q408. For NTSC, the X401 block is turned on, and a clock of 14.31818 MHz is sent. For PAL, the X402 and X403 blocks are turned on, and clocks of 14.1875 MHz and 17.734475 MHz are sent, respectively. For PAL, a subcarrier (SC signal) is synchronized with a horizontal sync signal by VCXO (peripheral circuits Q407 and Q409). Q405 DTA124EKA-T146
Q406 2SC4116YG-TE85L C416 0.1uF
C408 0.1uF
Q407 2SC4116YG-TE85L
R413 6.8k X401 14.318182MHz
5
VDD
A
6
1 3
C417 0.001uF
TP406
X404 14.1875MHz
C423 39pF 2 4
C433 0.1uF
R426 4.7k
R422 100k
CL408 k 0 2 2
1
CT401 20pF
7 INH VSS VEE
C409 4pF
C415 0.001uF R415 1k
14.3
Q409 2SC4116YG-TE85L VCO DC
TC4W53FU(TE12R)
C412 47pF
L401 10uH
L403 10uH
C430 0.1uF
IC405
8
C402 100uF 6.3V
R420 6.8k
2
4
7 2 4 R
3
R419
D401 HVC350BTRF
C424 39pF
1k
R414 C413 10k 47pF
R421 C427 CT402 10k 33pF 20pF
R425 10k
C436 2.2uF 50V
F u 1 . 0
7 3 4 C
R428 10k
14.1
CN402
NM
C404 0.1uF
C418 0.1uF
C420 47uF 6.3V
22 VDD HCOMOUT
OSC
4FSCOUT
TP404 7
3 4
17.7M
5
30
14M 23
OFLD1
R423 1.5k
TP405
CLIN
L405 10uH
17M
CL406
24
R443 6.8k R424 4.7k
C438 0.1uF
CL407
CLOUT
C452 47pF
OFLD 5
OLALT 31
19
OBF/COLB OBLK
MODE1 20
MODE2
2
Q408 DTC124EKA-T146
18
OSYNC
EXT
10
13
OVD
Q411 2SC4116YG-TE85L
X403 17.734475MHz
3
17.7 CT403 20pF
C472 7pF R444 10k
C454 0.001uF
Q412 DTC124EKA-T146
C453 47pF R445 1k
LALTRI
6
21
OHD
HRI
26
CL405
2
GND
Q410 DTA124EKA-T146
8
4FSCIN
4
1
GND VCO DL
IC406 CXD1217Q-T4
28
17
14.3M
29
OFH
VRI
15
14
O2FH
TEST
N/P
007-B9,008-L5,009-B8
VSS 12
Fig. 1-9
4-22
Sync Generator Block
UP-20/21MD V1
4-3. Operation Description of Print Control Block Circuit Outline The print control block consists of the following blocks. 1. Mechanical control block (IC301 and peripheral on the SY-299 board) 2. Head control block (IC401, IC501 and peripheral on the SY-299 board) 3. Motor driver and sensor control block (MEC-15/MEC-20 board) IC102 on the MEC-15/MEC-20 board is memorized any informations such as sensor information, total number of the print count on the unit, total number of the print count on the head, record of error message, Shift H, Shift V, remaining amount of ribbon and head voltage parameter.
4-3-1. CPU Flowchart START Initialize MAIN:
Mechanical status flag
Status processing
Command flag
Command execution
4-3-2. CPU (IC302) Memory Map The memory map of CPU is shown below.
000000 020000 040000 060000 080000 0A0000
Built-in ROM (Program) IC502 (PQC IC) IC501 (γ RAM, Color offset) CN305 (for Debug) IC402 (Line number correction ROM)
FFE080 FFEFFF
Built-in RAM
FFFE50 FFFFFF UP-20/21MD V1
Internal I/O register
4-23
4-3-3. Outline of Motor Drive Function Blocks The motor drive circuit of a mechanical control block consists of the following circuits. . Fan motor drive circuit . Stepping motor drive circuit . DC motor drive circuit
1. Fan motor drive circuit The fan motor is driven by turning on the transistor (Q201) on the MEC-15/MEC-20 board using the control signal from pin 33 of IC302. The fan motor is rotated when the head temperature exceeds the fixed value during printing and in the standby state. +12V
CN204
C205 0.1uF
+5V
1
GND
2
C206 10uF 16V
CN207
4
47
R239 10k
ROOM_FAN
ROOM_FAN
1
NC
2
GND
3
+5V
R210 1k R238
HEAD_FAN
HED_FAN
5
2SD999-T1CK Q201
To IC302 33pin
+12GND
Q204 DTC124EKA-T146 GND
SY-299
MEC-15/MEC-20
2. Stepping motor drive circuit The control signals of each phase (A, A, B, and B) are output at pins 93 to 96 of IC302 on the SY-299 board. Drive circuit IC204 on the MEC-15/MEC-20 board drives the stepping motor by chopper drive. The excitation system of the stepping motor is based on one-/two- phase excitation. The reference voltage input to pins 3 and 14 of IC204 on the MEC-15/MEC-20 board drops during a motor stops by switching the control signal at pin 29 of IC302 on the MEC-15/MEC-20 board. Then, grip roller drives through the belt from a stepping motor. Besides, this circuit is designed that +32 V is not supplied by controlling of power supply control line (pin 3 of CN201) except print and pre-heat conditions. +5V
+32V
R212 4.7k
R214 4.7k
R215 4.7k
R216 4.7k
SLA7024M IC204
To SY-299 IC302 93-96pin
PLT_MTR 7
VSA
12 8
INA
OUTA
INA
OUTA
5
To SY-299 IC302 29pin
INB
OUTB
INB
OUTB
16
+5V
5
/A
6
R224 2.2k
R236 47k
3
R237 47k
REFA 14 R225 2.2k R231 1
R223 82
GND
4
/B
11
C217 33uF 50V
REFB
R218 1k
3
+32V
RSA +32GND
Q203 R221 2SC1623-T1-L5L6 82
2
+32V
9
TP210
PWDWN
1
A
18
REF
R222 390
TP207
C211 R230 1 0.0022uF
B 1
17 +5V
CN206
VSB
6
C212 0.0022uF
GND
2
TDA 10
C218 33uF 50V
13 RSB GNDA
TDB GNDB
4
15
C215 470pF
C219 0.1uF
C216 470pF
+32GND
MEC-15/MEC-20
4-24
GND
+32GND
UP-20/21MD V1
3. DC motor drive circuit Motor drive circuit IC203 on the MEC-15/MEC-20 board is controlled by the control signals at pins 55 and 56 of IC302 on the SY-299 board. DC motor drives the feed paper roller, head up/down and ribbon rewinding respectively by each mechanism positions.
+12V
C221 C213 47uF 0.1uF 16V
+5V
R211 10k
To SY-299 IC302 55,56pin
R213 10k
C220 47uF 16V
IC203 TA8428K
7 1 2
IN1
VCC OUT1
IN2
OUT2
NC
3 5
6
C214 0.022uF
CN205
+ -
1 2
GND 4
+12GND
MEC-15/MEC-20
UP-20/21MD V1
4-25
4-3-4. Outline of Sensor Detection Circuits A sensor of this unit is classified into the following three types. The sensor of the reflective type perform the A/D conversion input according to the change with the passage of time in a sensor level.
Photo interruptive type . . .
Head position sensor (S8, S9) Jamming sensor (S10) (Detects the paper end) Delivery flap sensor (S11)
Reflective type . . . .
Paper-in sensor (S1) Paper feed sensor (S2) (Detects the paper extremity) Ribbon type detection sensor (S5-S7) Ribbon cueing detection sensor (S3)
Mechanical type . .
Front panel opening detection sensor (SE-642/SE-683 board) Interlock sensor
1. Head position sensor (S8, S9) Type: Photo Interruptive type Function: Discriminates the thermal head position. Level: Discriminates to sequentially shown as below. Position
HED_POS_SENSE0 IC302 51P
HED_POS_SENS1 IC302 52P
Head up
Standby state
H
H
Paper pip
Paper feed position
H
L
Head half
Ribbon cueing, Paper feed
H
L
Head down
Y print
H
L
Head half
Ribbon cueing, Paper retracting
H
L
Head down
M print
H
L
Head half
Ribbon cueing, Paper feed
H
L
Head down
C print
H
L
2. Jamming sensor (Detects the paper end) (S10) Type: Photo Interruptive type Function: Detects whether print paper is not jammed in the mechanical unit during standby. Detects paper feed and paper during retracting. Level: PAPER_JAM_SENS IC302 50P H: Print paper exists. L: Print paper does not exist.
4-26
UP-20/21MD V1
3. Delivery flap sensor (S11) Type: Photo Interruptive type Function: Detects the paper stack of a delivery part. Level: PAPER_EJ_SENS IC302 49P H: Print paper stacks, “REMOVE PAPER” is displayed. L: Print paper does not exist.
Q108 2SB798-T1-DLDK
+5V
R123 10k R141 47
R142 10k
R124 1k
+5V
HPOS0
HPOS1
TP309
TP308
Q107 DTC124EKA-T146 R325 39k
R326 39k
GND
R307 47
IC203 51P IC203 52P
R308 47
CN301 9P
CN101 12P
CN301 10P
CN101 11P
C312 220pF
S8
C313 220pF
S9
GND GND
+5V JAM
GND
TP304
R331 39k R309 47
IC203 30P
CN301 11P
CN101 10P
S10
C314 220pF
GND
+5V EJ TP305
GND
R333 39k R310 47
IC203 49P
CN301 12P
CN101 9P
S11
C315 220pF
GND
GND
SY-299
MEC-15/MEC-20
Sensor circuits for S8 to S11
UP-20/21MD V1
4-27
4. Paper-in sensor (S1) Type: Reflective (Paper reflective) type Function: Detects whether print paper exist or not into the paper feed tray. Level: PAPER_IN_SENS IC302 38P H (analog level): Print paper exists. L (analog level): Print paper does not exist. +5V PPIN TP310
R314 82k R301 47
IC302 38P
CN301 2P
CN101 19P
CN103 2P
C301 220pF
Q101 2SC1623-T1-L5L6
GND
5
IC101 13P
+5V
IC103 (1/2) LM358PSR +
R107 47
7
PAPER IN
TP104
6 -
CN102 3P
PAPER IN
S1
CN102 1P
SY-299
GND
MEC-15/MEC-20
5. Paper feed sensor (Detects the paper extremity) (S2) Type: Reflective (Paper reflective) type Function: Detects the paper feed timing. Detect whether print paper is not jammed at a paper feed port during standby. Level: PAPER_LD_SENS IC302 39P H (analog level): Print paper exists. L (analog level): Print paper does not exist. +5V PPLD TP311
R319 15k R302 47
IC302 39P
CN301 3P
CN101 18P
CN103 2P +5V
C303 220pF
CN103 6P GND
PAPER IN
S2
+5V
3
IC101 13P
8 +
C106 0.1uF
2
PAPER_LD
Q102 2SC1623-T1-L5L6
+5V
R113 10k
TP105
IC103 (2/2) LM358PSR 1
R108 47
CN103 3P
4
R114 220
R131 120
R132 120
NM
GND
NM
GND
CN103 1P
SY-299
4-28
MEC-15/MEC-20
GND
UP-20/21MD V1
6. Ribbon type detection sensor (S5-S7) Type: Reflective type Function: Detects whether ribbon cassette is installed on the unit. Discriminates the type of ribbon cassette. Level: (analog level) RBN_TYPE_SENS0 IC302 41P
RBN_TYPE_SENS1 IC302 42P
RBN_TYPE_SENS2 IC302 43P
UPC-21S
H
L
H
UPC-21L
L
H
L
Cleaning
L
L
L
+5V RB0 TP314
R321 39k R304 47
CN103 7P
IC302 41P CN301 5P
CN101 16P +5V
C306 220pF
CN103 6P
GND
PAPER IN +5V
Q104 2SC1623-T1-L5L6
+5V
3
IC101 15P
8
IC104 (2/2) LM358PSR
+
C107 0.1uF
1
RBN_TYPE0
S5
TP107
R117 10k
R110 47
CN103 8P
2 4
R118 330
R135 330
+5V RB1
R136 120 NM
GND
TP316
R322 39k
GND
R305 47
CN103 9P
IC302 42P CN301 6P
CN101 15P PAPER IN
C307 220pF +5V
RBN_TYPE1
Q105 2SC1623-T1-L5L6
GND
IC101 4P
IC105 (1/2) LM358PSR
5 +
7
R119 10k
S6
TP108
R111 47
CN103 10P
6 -
+5V
R120 330
RB2
R137 330
TP317
R138 120 NM
R324 39k GND
R306 47
CN103 11P
IC302 43P CN301 7P
CN101 14P PAPER IN
C310 220pF +5V
S7
GND
+5V
IC101 5P C108 0.1uF
3
8 +
RBN_TYPE2
Q106 2SC1623-T1-L5L6
R121 10k
TP109
IC105 (2/2) LM358PSR 1
R112 47
CN103 12P
2 4
R122 330
R139 330
R140 120 NM
GND GND
SY-299
UP-20/21MD V1
MEC-15/MEC-20
CN103 1P GND
4-29
7. Ribbon cueing detection sensor Type: Reflective type Function: Detects the start mark and cue mark of a ribbon. Level: RBN_CD_SENS IC302 40P H (analog level): Detects the cue mark of each color. L (analog level): Others +5V RB_CD TP312
R320 12k R303 47
CN301 4P
IC302 40P
CN101 17P
CN103 4P
C305 220pF
+5V
GND
CN103 6P
PAPER IN
S3 +5V
RBN_CD
Q103 2SC1623-T1-L5L6
IC101 14P
R115 10k
TP106
IC104 (1/2) LM358PSR
5 +
7
R109 47
CN103 5P
6 -
R116 330
R133 120
R134 120
NM
NM
GND
CN103 1P
SY-299
GND
MEC-15/MEC-20
8. Front panel opening detection sensor (S401/SE-642 or SE-683) Type: Mechanical type Function: Detects whether opening or closing of the front panel. Level: DOOR_SENS IC302 48P H: Open the front panel. L: Close the front panel. +5V
+5V
DOOR SENS TP318
R250 10k
R317 10k
S401 FB231
2
1
IC302 48P
3
+5V
C302 220pF
3 2 1 GND
D210 1SS123-T1 GND
SY-299
4-30
KEY-49/KEY-51
SE-642/SE-683
UP-20/21MD V1
9. Interlock sensor Type: Mechanical type Function: Detects whether bottom plate is installed on the unit. When bottom plate is not installed on the unit, turn off the power of the unit. Level: MEC-15/MEC-20 board CN201 7P H: Power ON L: Power OFF VCONT
CN201 +12V
TP201
D+3.3V
1 2
M+12V
3
V_CONT
4
D+5V
5
GND
VCONT
001-J9
R205 1k CN203
6
GND
7
REMOTE nON/OFF
8
GND
9
STEPM
GND +32V
R201
NO
1
COM
2
To INTERLOCK SW
GND
0
R202 0 +12GND
R203 0
R204 0 GND
+32GND
MEC-15/MEC-20
4-3-5. Head Control Block The head control block corrects the parallel print data per line from the VPR-74 board and transfers it to the thermal head for printing. The head control block consists of the following five blocks. . Color table γ RAM plus temperature correction offset (IC501) that γ -corrects the parallel print data from VPR-74 board . Image processing circuit (picture quality control) (IC502) that performs pattern recognition interpolation, edge emphasis, and thermal storage correction . Head drive circuit (IC401, 403) that PWM-converts parallel data and transfers print data to the thermal head . Line number correction circuit (voltage drop control) (IC402) that corrects the voltage drop due to the common resistor of a thermal head . Head voltage correction circuit Print data is received from the VPR-74 board as parallel data, γ -corrected, and processed by a PQC circuit. After that, the print data is PWM-modulated using a head drive circuit and transferred to the thermal head via CN401 on the SY-299 board. γ correction
circuit
The print data sent from the VPR-74 board is γ -corrected using the data conversion table of γ RAM (IC501). Before printing, the γ data of each YMC color corresponding to the media type, paper feeding and γ type is written in the address of γ RAM. IC501 also accounts two data offset for temperature correction of continuity printing and color balance functions, and then add it to print data.
UP-20/21MD V1
4-31
PQC IC The main functions of PQC IC are as follows. . Edge emphasis Performs the edge emphasis that improves the sharpness of an image using a digital filter in the horizontal and vertical directions. . Thermal storage correction Corrects the dullness and unstableness of rising due to the defective thermal response of a head using a digital filter. . Re-sizing Digitized video signal data is re-sized to number of a head element corresponding to division mode. . Patter recognition of data complement Performs the data complement in relation to the head direction and feed direction respectively.
Head drive circuit .
.
PWM modulation PWM-modulates eight-bit parallel data and converts it into serial print data. Divided print processing Divides one gradation into four for printing so that the clearance between print lines does not stand out when the print dot area of a low-density image portion becomes smaller.
Line number correction circuit The combined resistance of an element decreases when the number of heating resistor elements that carries a current to the thermal head increases. In this case, the voltage drop due to the common resistance of a harness cannot be ignored and the print density decreases. Therefore, this circuit controls the current-carrying time of a head element and corrects the print density.
Head voltage correction The head voltage can be increased or decreased by changing a VCONT signal (pin 3 of CN201 on the MEC-15/MEC-20 board) for the power supply block. A VCONT signal is controlled using software by using the D/A conversion output (pin 6 of IC101 on the MEC-15/MEC-20 board). All that, head voltage is not output according to VCONT signal controls except during printing and preheating of the thermal head. . Correction by feed pitch When data is printed at the same head voltage, the print density becomes thicker as the feed pitch becomes narrower. Therefore, an offset is made in each feed of ordinary S-size print (FULL, twodivision and four-division), L-size print (FULL, two-division and eight-division) and moreover printing speed.
4-32
UP-20/21MD V1
4-4. Circuit Operation Description of System Control Block System control block consists of the following circuit blocks. . IC103 and peripheral circuit on the SY-299 board . KEY-49 board (for UP-21MD) KEY-51 board (for UP-20) . IF-851 board . IF-852 board This section describes the following contents. 1. Special mode and special operating method 2. Address map 3. Circuit operation 4. Communication with internal CPU . Interface with mechanical control block (IC302: PRT) on the SY-299 board . Interface with mechanical control block (IC501: FMY) on the VPR-74 board 5. Analog video block (VA) control of the VPR-74 board . I2C bus control . Screen display-related signals . Status signal 6. RS communication control 7. Media protection such for software
4-4-1. Special Mode and Special Operating Method
. . . .
Reset of the default setting Turn on the power by pressing the [STOP], [CAPTURE] and [PRINT] keys simultaneously. Service mode Turn on the power by pressing the [ ←] and [→] keys simultaneously. Mechanical adjustment mode Turn on the power by pressing the [DISPLAY] and [EXEC] keys simultaneously. Transport mode Press the [←], [→] and [MENU] keys simultaneously during power on condition.
4-4-2. Address Map Address
Contents
IC
Remarks
000000h-03FFFFh
256k-byte FLASH
IC103
CPU built-in
400000h-400003h
LCD
IC201, IC204
600000h-600008h
Keymatrix
IC201, IC204
FFB000h-FFEFBFh
16k-byte SRAM (1/2)
IC103
CPU built-in
FFF800h-FFFFBFh
I/O
IC103
CPU built-in
FFFFC0h-FFFFFFh
16k-byte SRAM (2/2)
IC103
CPU built-in
UP-20/21MD V1
4-33
4-4-3. Circuit Operation
. Reset circuit The reset circuit uses PST572CMT (IC105). This circuit outputs a low pulse of about 60 msec when Vcc becomes less than 4.5 V during the power-on or off sequence. The reset pulse is input to the reset pin (pin 59) of CPU (IC103). The CPU on the SY-299 board is then reset. After the reset is released, the CPU outputs the reset pulses for other boards from the reset output pins (pins 28 and 74). IC103
TP
Object to be reset
Remarks
Pin 59
TP110:RESET1
CPU on SY-299 board
Output of reset circuit
Pin 28
TP109:RESET2
VPR-74 board and peripheral circuit on SY-299 board
Pin 74
TP106:RESET3
Mechanical control block
. Oscillator circuit The basic clock (9.8304 MHz) of the SY-299 board that is generated using an oscillator circuit incorporating a crystal oscillator (X101) and CPU (IC103) can be confirmed at pin 61 of IC103.
. Nonvolatile memory Each menu setting, caption character string or data for “COLOR LOAD” and “USER LOAD” is stored in 64 kbit I 2C serial EEPROM (IC101). The system starts under last-call state (that is setting state under turned off the power) according to data is read from the nonvolatile memory when the system starts. However, when setting is changed in COLOR ADJUST menu and turn off the power during [TEMP] state but “SAVE COLOR” is not set in the menu, setting value on this menu page is not stored in IC101. At that, I 2C bus using for data storing is used in common that controls for analog board. When this IC is replaced, reset of default setting must be performed after resetting of “LANGUAGE” on the SERVICE MENU 1.
. LED control The PRINT LED (that lights during printing) is controlled by CPU (pin 35 of IC103). A digital transistor of final stage is Q301 on the KEY-49/KEY-51 board. (Q302 on the KEY-51 board for UP-20.) The ALARM LED (that lights when an error occurs in a printer) is controlled by CPU (pin 36 of IC103). A digital transistor of final stage is Q302 on the KEY-49/KEY-51 board. (Q301 on the KEY-51 board for UP-20.)
. Buzzer control A buzzer sound pulse is output from CPU (pin 39 of IC103). The buzzer does not sound when [BEEP:OFF] is set in the menu.
. Liquid-crystal display (LCD) control The bus control of LCD is performed using IC201 and IC204, and IC301 on the KEY-49/KEY-51 board. The display density of LCD is decided the analog voltage value that is output from CPU (pin 43 of IC103) and then drive it in IC 206 and peripheral circuit. No display may appear on the LCD when [LCD-CONT:OFF] is set in the menu. This circuit is common to keymatrix and operates as bus control of LCD when CS2 is set in the menu.
. Input of main unit’s key (main key/operation key) The state of the main unit’s key is processed by IC201 and IC204, and IC303, IC304, D305 to D308 and R342 to R347 on the KEY-49/KEY-51 board, and input through a data bus to CPU. This circuit is common to bus control of LCD and operates as input of main unit’s key when CS3 is set in the menu.
4-34
UP-20/21MD V1
. Screen display control A screen display control signal is generated by IC102. Exclusive clock circuit uses in this IC102. The clock frequency have an effect to horizontal size on the screen. The H-sync and V-sync signal inputs from the VPR-74 board are required as a timing pulse during operation. The control signal of display data is output from CPU (pins 1 to 3 of IC103). Characters are actually superimposed using an analog switch on the VPR-74 board. No screen display may appear when [SOURCE:THRU] or [DISPLAY:OFF] is set in the menu.
. Remote 1 input and infrared remote control reception An infrared remote control pulse is received using the infrared photosensor (IC302) on the KEY-49/KEY51 board. This pulse is waveform-shaped by IC209 on the SY-299 board and output to the IF-852 board. When a wired remote control is connected to J1 on the IF-852 board, a wired remote control pulse is selected as output. When it is not connected to J1, output pulse of a photosensor is selected as output. One of selected pulse is waveform-shaped by IC209 on the SY-299 board and shift by IC106, then input to CPU (pins 40 and 41 of IC103). Therefore, the wire remote control operation may fail due to the failure of J1 on the IF-852 board.
. Remote 2 input The two types of remote controls can be connected that are a open/short remote control (RM-91 etc.) and analog-level remote control (FS-36 etc.) in J2 on the IF-852 board. A open/short-level signal is processed by IC205 and input to CPU (pin 75 of IC103). An analog-level signal is processed by IC206 and input to CPU (pin 49 of IC103).
. Remote 2 output The control signal of a BUSY output signal is output by CPU (pin 34 of IC103) and driven using a buffer (IC208). Afterward, a signal is input to two circuits of TTL output and open collector output, then an output signal is decided either them by setting of S201 on the SY-299 board.
4-4-4. Communication with Internal CPU in Unit
. Interface with mechanical control block on the SY-299 board (IC302: PRT) Bi-directional communication is performed by the asynchronous serial communication that uses serial communication interface CH.0 incorporated into CPU.
Signal line name
I/O
Description
SY_PRT_TXD
Output
Communication data (IC103: SY → IC302: PRT)
PRT_SY_RXD
Input
Communication data (IC302: PRT → IC103: SY)
SY_PRT_RTS
Output
Communication enable (IC103: SY → IC302: PRT)
L:active
PRT_SY_CTS
Input
Communication enable (IC302: PRT → IC103: SY)
L:active
Communication format System Data length
Asynchronous system 8 bits
Stop bit
1 bit
Parity
None
Baud rate
19200 bps
UP-20/21MD V1
4-35
. Interface with mechanical control block on the VPR-74 board (FMY) Bi-directional communication is performed by the asynchronous serial communication that uses serial communication interface CH.3 incorporated into CPU.
Signal line name
I/O
Description
SY_FMY_TXD
Output
Communication data (SY-299 board, IC103: SY
→ VPR-74
board, IC501: FMY)
FMY_SY_RXD
Input
Communication data (VPR-74 board, IC501: FMY → SY-299 board, IC103: SY)
SY_FMY_RTS
Output
Communication enable (SY-299 board, IC103: SY
FMY_SY_CTS
Input
→ VPR-74 board,
IC501: FMY)
L:active
Communication enable (VPR-74 board, IC501: FMY → S Y-299 board, IC103: SY)
L:acti ve
Communication format System
Asynchronous system
Data length
8 bits
Stop bit
1 bit
Parity
None
Baud rate
19200 bps
4-4-5. Analog Video Block (VA) Control on the VPR-74 Board
. I2C bus control Purpose Controls the I2C bus circuit on the analog board. Signal line name
I/O
Description
IIC-SCL
Output
Serial data clock
H:active
IIC_SDA
Output
Serial data
H:active
IIC_CTS
Input
Serial data transfer enable
H:active
Functions obtained by I 2C bus control (User menu) HUE, COLOR, GAIN, OFFSET, MONI-R, MONI-G, MONI-B, IRE, SYNC ON G, and INPUT SEL (Service menu) PICTURE, G DRIVE, B DRIVE, SUB-BRIGHT, and VBS Y (Other functions) HALFTONE
n The object to be handled is an I 2C-compatible circuit on the VPR-74 board. The center value for adjustment is stored in I 2C-EEPROM on the VPR-74 board. During start, the SY-299 board reads data from I2C-EEPROM and initializes the IC on the VPR-74 board. These set values can be changed (readjusted) in the service man mode. No communication is performed when I 2C-CTS is in the send disable (L) state.
4-36
UP-20/21MD V1
. Screen display-related signals Purpose Produces a pulse signal for screen display. Signal line name
I/O
Description
OSD-R
Output
Screen display control data (R)
H:active
OSD-G
Output
Screen display control data (G)
H:active
OSD-B
Output
Screen display control data (B)
H:active
OSD_BLK
Output
Screen display control data (Blanking)
H:active
OSD_ON_NOFF
Output
Batch control of screen display superimposition (yes/no)
H:active
OSD_HD
Input
Timing pulse (H-SYNC)
Sync negative
OSD_VD
Input
Timing pulse (V-SYNC)
Sync negative
. Status signal Input signal specification The signal line INPUT_SEL1 shows on the schematic diagrams, but this line does not use in reality. All of input signal switching realizes by IIC controls.
. Signal selection during output of source screen THRU_EE
Contents
L
THROUGH
H
EE
n This signal is used for control of a relay switch on the IF-851 board. When menu/error appear on the screen, EE screen is output even if SOURCE is set to THRU.
. Color and B/W selection SET_CL_nBW
Contents
H
COLOR
L
B/W
n COLOR/BW bit processed on the I 2C bus circuit is output by a status signal.
. Video mode (NTSC/PAL) selection SW_NTSC_NPAL
Contents
H
NTSC
L
PAL
n This mode is connected to the NTSC/PAL set switch on the IF-852 board.
UP-20/21MD V1
4-37
4-4-6. RS Communication Control A serial signal of TTL level that is produced is serial communication interface CH.2 incorporated into CPU, is converted at ± 8 V by level conversion IC (IC202 and IC203) then output it. The last output signal is as follows: Active: 8V Non-active: _8 V The TP position is as follows: Active: 0V Non-active: +5 V
Signal line name
I/O
Description
TXD
Output
Communication data (UP → External)
RXD
Input
Communication data (External → UP)
RTS
Output
Communication enable (UP → External)
CTS
Input
Communication enable (External → UP)
DTR
Output
Operation status (UP → External)
DSR
Input
Operation status (External → UP)
Communication format System
Asynchronous system
Data length
8 bits
Stop bit
1 bit
Parity
None
Baud rate
1200/2400/4800/9600 bps (Menu switching)
4-4-7. Media Protection such for Software Error message “CHECK RIBBON A0” is displayed when specific printer of exclusive use for S paper is set the L paper.
4-38
UP-20/21MD V1
Section 5 Troubleshooting 5-1. Video (Image) Related Trouble The flow of a video signal is shown in the figure below. [Flow of video signal] Input block
SIGNAL SOURCE
MONITOR Output block(Monitor)
ANALOG RGB.VIDEO.S-VIDEO
IF-851
RELAY
DECODER
ENCODER
VPR-74
DIGITAL RGB
DRAM
A/D Test Pattern
D/A
MASKING
8bit DATA(Serial) SY-299
(Serial to Parallel Conversion)
HEAD DRIVER
8bit DATA(Parallel) THERMAL HEAD Output block(Print)
PRINT RESULT
The flow of a video signal can be mainly classified into input, monitor output, and print output blocks. The block in which a trouble occurs can be supposed from the trouble state. 1. Both the print result and monitor display are abnormal. In this trouble state, a trouble occurs in the input block. 2. The print result is normal and the monitor display is abnormal. In this trouble state, a trouble occurs in the monitor output block. 3. The print result is abnormal and the monitor display is normal. In this trouble state, a trouble occurs in the print output block. Each block is described below. For more details, refer to the block diagram, schematic diagram, and circuit operation description of each board.
UP-20/21MD V1
5-1
Input Block In the input block, the flow of a signal is as follows: Signal input terminal (IF-851) - ADC (VPR-74) - DRAM (VPR-74) If a trouble is judged to occur in the input block, check the state of a video trouble fully. For fine symptoms in dots, a trouble may occur in a digital processing system [ADC (around IC350 to IC352) DRAM (around IC801)]. In other states, a trouble may occur in an analog processing system [IF-851 Decoder (around IC204) - ADC]. In the trouble of an analog processing system, the place where a trouble occurs can be more narrowed down by checking the state of each signal (VIDEO, S-VIDEO, and RGB).
Monitor Output Block In the monitor output block, the flow of a signal is as follows: DRAM (VPR-74) - Encoder (VPR-74) - Signal output terminal (IF-851) Like an input processing block, it can be supposed to some degree by the trouble state whether the block where a trouble occurs is a digital processing system [DRAM - encoder (around IC407)] or analog processing system (encoder - IF-851). The place where a trouble occurs can be more narrowed down by the state of each monitor output signal (VIDEO, S-VIDEO, and RGB).
Print Output Block In the print output block, the flow of a signal is as follows: DRAM (VPR-74) - Masking (VPR-74) - Head control (SY-299) - Thermal head The data output from DRAM on the VPR-74 board is input through the masking circuit (around IC902 and IC903) on the VPR-74 board to the head control circuit (around IC401, IC402, and IC403) on the SY-299 board. Moreover, the print signal that was converted from serial to parallel in the head control block is output through a harness from CN401 on the SY-299 board to the thermal head.
5-2
UP-20/21MD V1
5-2. Mechanical Troubleshooting Symptom
Cause
Remedy
Power does not turn on
Interlock switch is damaged
Replace an interlock switch
Interlock switch connector is not connected
Connect an interlock switch connector
Head block incorrectly position
Turn on the power again
Head block incorrectly position (Sensor S8 or S9 has failed)
Replace the sensor board assembly of S8 or S9
Head block incorrectly position (Gear or cam is damaged)
Replace a gear or cam
Head block is slipped out of the place
Reinstal l a head block
Ribbon guide is detached
Reinstall a ribbon guide
Head does not move to downwar
Head block is unbiased when installing
Reinstall a head block while biasing
Cannot set the paper tray
Pinch roller shaft is detached
Reinstall a pick roller shaft
SET PAPER indicator does not disappear even if setting the paper
Sensor S1 has failed
Replace a S1 sensor board assembly
Harness on S1 sensor board assembly is not connected
Connect a harness
Paper curled
Remove the paper curling
Sensor S5, S6 or S7 has failed
Replace a S2 sensor board assembly
Harness on S2 sensor board assembly is not connected
Connect a harness
Specified ribbon cassette does not use
Use a specified ribbon cassette
Discrimination mark for ribbon cassette is stripped
Replace a ribbon cassette
DC motor has failed (No rotating)
Replace a DC motor
DC motor connector is not connected (No rotating)
Connect a DC motor connector
Pick roller slipped
Confirm the paper surface not dirty
Ribbon cassette is not inserted
NO RIBBON CASSETTE indicator does not disappear even if setting the ribbon
Cannot paper feed (Cannot pull in paper to the unit)
Replace a pick roller assembly (Worn out of roller)
Cannot paper feed (Paper can pull in to the unit but stops into grip roller)
UP-20/21MD V1
Planetary gears 1, 2 and 3 cannot change correctly
Replace the mechanism deck
Harness m ake cont act t o pick roller
Improve t he wiring of harness
Gear has failed (or damaged)
Replace a gear
STM has failed (No rotating)
Replace a STM assembly
STM connector is not connected
Connect the connector on a STM assembly
Grip roller does not meshing to pinch roller
Replace the mechanism deck
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
Gear has failed (or damaged)
Replace a gear
5-3
Symptom
Cause
Remedy
Unsuitable size of paper and ribbon cassette is displayed
Paper is unsuitability size with ribbon
Replace the paper or ribbon cassette in order to suitability size
Ribbon discriminate mark cannot discriminate by dirty etc.
Replace a ribbon cassette
Sensor S5, S6 or S7 has failed
Replace a S2 sensor board assembly
Harness on S2 sensor board assembly is not connected
Connect a harness
Overlapped paper feed (Extreme cannot detect on the paper)
Remove the overlapped feed paper (Do not use the removed paper) Replace the mechanism deck
Overlapped paper feed cause of the paper stuck
Remove the overlapped feed paper (Do not use the removed paper) Dispose the remained paper thoroughly
Grip roller does not meshing to pinch roller
Replace the mechanism deck
Actuator type photo sensor has fai led
Replace an act uator t ype phot o sensor
Connector of an actuat or type sensor is not connected
Connect a connector of an act uator t ype photo sensor
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
Gear has failed (or damaged)
Replace a gear
Power supply cable of a head is not connected
Connect a power supply cable of a head
Head harness for signal line is not connected
Connect a head harness for signal line
Power supply cable of a head is disconnected
Connect a power supply cable of a head
Head harness for signal line is disconnected
Connect a head harness for signal line
Head has failed
Replace a head
Sensor S8 or S9 has failed (Head is not regular position)
Replace the sensor board assembly of S8 or S9
Head block incorrectly position (Cam, joint gear or gear has failed)
Replace the cam, joint gear or gear
Planetary gears 1, 2 and 3 cannot change correctly
Replace the mechanism assembly
Belt incorrectly tension
Readjust the belt tension correctly
Specified paper does not use
Use the specified paper
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
Head block is slipped out of the place
Reinstall a head block
Gear has failed (variety of core etc.)
Replace a gear
Head incorrectly position
Readjust a head position correctly
Specified paper does not use
Use the specified paper
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
Head block is slipped out of the place
Reinstall a head block
Static electricity plate is not installed correctly
Reinstall a static electricity plate
Head block incorrectly position (Cam, joint gear or gear has failed)
Replace the cam, joint gear or gear
Cannot printing
Paper feeding irregular occurs in printing side
Creases occurs in printing side
5-4
UP-20/21MD V1
Symptom
Cause
Remedy
Color print gap occurs in printing side
Grip roller does not meshing to pinch roller
Replace the mechanism deck
Back tension spring unsuitability strength
Replace the mechanism deck
T orque l imit er unsuit abilit y st rengt h
Replace t he mechanism deck
Belt incorrectly tension
Readjust the belt tension correctly
Loss of synchronism in STM (Belt incorrectly tension)
Reinstall a STM assembly
Head block is slipped out of the place (Defective of compressibility)
Reinstal l a head block
Head block incorrectly position (Cam, joint gear or gear has failed)
Replace the cam, joint gear or gear
Head has failed
Replace a head
Head block is slipped out of the place
Reinstal l a head block
Head block incorrectly position (Cam, joint gear or gear has failed)
Replace the cam, joint gear or gear
Head incorrectly position
Readjust the head position correctly
Specified paper does not use
Use the specified paper
Head block is slipped out of the place (Defective of compressibility)
Reinstal l a head block
Head block incorrectly position (Cam, joint gear or gear has failed)
Replace the cam, joint gear or gear
Head incorrectly position
Replace a head block assembly
Head block is slipped out of the place
Reinstal l a head block
Ribbon cassette has failed
Replace a ribbon cassette
Back tension spring unsuitability strength
Replace the mechanism deck
T orque l imit er unsuit abilit y st rengt h
Replace t he mechanism deck
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
Gear is damaged
Replace a gear
Overlapped paper feed
Remove the overlapped feed paper (Do not use the removed paper) Replace the mechanism deck
Overlapped paper feed cause of the paper stuck
Remove the overlapped feed paper (Do not use the removed paper) Dispose the reminded paper thoroughly
Ribbon cassette has failed (Paper caught in the bottom of the cassette)
Replace a ribbon cassette
Head block is slipped out of the place
Reinstal l a head block
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
STM has failed (No rotating)
Replace a STM assembly
STM connector is not connected
Connect the connector on a STM assembly
Harness of the rear si de is detached to the paper carrying path
Improve wiring of the harness
Density irregular occurs in printing side
Thinning print occurs in printing side
Streak lines occurs in printing side
Irregular sound occurs under printing
Paper jammed
UP-20/21MD V1
5-5
Symptom
Cause
Remedy
Does not paper delivery
Planetary gears 1, 2 and 3 cannot change correctly
Replace the mechanism deck
Ribbon cassette has failed (Paper caught in the bottom of the cassette)
Replace a ribbon cassette
Head block is slipped out of the place
Reinstall a head block
Loss of synchronism in STM (Belt incorrectly tension)
Readjust the belt tension correctly
STM has failed (No rotating)
Replace a STM assembly
STM connector is not connected
Connect the connector on a STM assembly
Delivery roller has failed
Replace a delivery roller assembly
Limit lever is detached from the bearings
Reinstall the bearings of a limit lever
Gear is damaged
Replace a gear
DC fan has failed
Replace a DC fan
DC fan connector is not connected
Connect a DC fan connector
Limit lever spring is not hanged
Re-hang a limit lever spring
Limit lever is detached from the bearings
Reinstall the bearings of a limit lever
Delivery guide incorrectly position
Reinstall a delivery guide
S11 sensor has failed
Replace a S11 sensor board assembly
Too fast timing operates head cleaning
Indicator does not disappear in spite of no accumulates the delivered paper
5-6
UP-20/21MD V1
Mechanical Trouble NG Code List NG_CODE1 D is pl ay me ss ag e
N G co mm an d
N G da ta
C on te nt s of N G
Symptom
Cheking point
MECHA TROUBLE
E1
08
HEAD_HOME_TIME_OUT
Cannot move head to head up position, time runs out
.
09
HEAD_HOME_PICK_TIMEOUT
0a
HEAD
CHECK RIBBON
E1
Example of possible cause
Relation of DC motor
.
DC motor harness is not connected.
Cannot move head from head up to paper pick position, time runs out
“MEC-15 or MEC-20/CN202, CN205, IC203”
.
Sensor harness is not connected.
HE AD_ PI CK _H AL F1 _T IME OU T
Cannot move head from paper pick to head half position, time runs out
“SY-299/CN302, IC302”
.
Overload is applied to mechanical block.
0b
HE AD_ HAL F1 _D OW N1 _T IM EO UT
Cannot move head from head half to Y print position, time runs out
Relation of sensor
.
Head cam FG has damaged.
0c
HE AD_ DO WN 1_ HAL F2 _T IME OU T
Cannot move head from Y print to head half position, time runs out
“MEC-15 or MEC-20/CN101, CN104”
etc.
10
HE AD_ HAL F2 _D OW N2 _T IM EO UT
Cannot move head from head half to M print position, time runs out
“SY-299/CN301, IC302”
11
HE AD_ DO WN 2_ HAL F3 _T IM EO UT
Cannot move head from M print to head half position, time runs out
S8/S9
12
HE AD_ HAL F3 _D OW N3 _T IM EO UT
Cannot move head from head half to C print position, time runs out
13
HE AD_ DO WN 3_ HAL F4 _T IM EO UT
Cannot move head from C print to head half position, time runs out
14
HE AD_ HAL F4 _D OW N4 _T IM EO UT
Cannot move head from head half to L print position, time runs out
15
HE AD_ DO WN 4_ HO ME_ TIM EO UT
Cannot move head from L print to head up position, time runs out
16
HE AD_ DO WN 3_ HO ME_ TIM EO UT
Cannot move head from C print to head up position, time runs out
17
HE AD_ PI CK _H AL F2 _T IME OU T
Cannot move head from paper pick to head half position, time runs out
1f
HEAD_POS_ERROR
Cannot detect head position
1d
HEAD_COLD_ERROR
Detects the abnormal temperature of thermal head thermistor
1e
HEAD_HEAT_TIMEOUT
Cannot rise the regular temperature during pre-heating of a thermal head, time runs out
34
RIBBON_MCL_TIMEOUT
Detects index mark during magenta or cyan indexing of an ink ribbon by sensor S3,
.
.
.
time runs out
.
Thermal head
.
Thermal head has failed.
“SY-299/CN401, IC302”
.
Thermal head harness is not connected or damaged etc,.
Relation of DC motor
.
Sensor harness is not connected.
“MEC-15 or MEC-20/CN202, CN205, IC203”
.
Ribbon take-up torque incorrectly.
“SY-299/CN302, IC302”
etc.
Relation of sensor “MEC-15 or MEC-20/CN101, CN103, IC101, IC104” “SY-299/CN301, IC302” S3
A0
CHECK RIBBON
Detects an unused ribbon by a ribbon type detect sensor 0 to 2 (S5 to S7)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC105”
.
Type reflection port of an ink ribbon has failed.
“SY-299/CN301, IC302”
.
Sensor harness is not connected.
S5-S7 MECHA TROUBLE
E1
51
LOAD_TMG_TIMEOUT
Printing paper is not fed until a feed sensor (S2) when feeding paper, time runs out
.
Optical axis is out of place because of sensor board is installed incorrectly.
Relation of DC motor
.
Sensor harness is not connected.
LOAD
“MEC-15 or MEC-20/CN202, CN205, IC203”
.
Paper feed is fault by reduce of friction on paper feed
/CHECK PAPER
“SY-299/CN302, IC302”
LOAD
.
.
roller.
Relation of sensor
.
“MEC-15 or MEC-20/CN101, CN103, IC101, IC103”
etc.
Paper feed tray has damaged.
“SY-299/CN301, IC302” S2 (Continued)
UP-20/21MD V1
(i)
(i)
(Continued of NG_CODE1)
D is pl ay me ss ag e MECHA TROUBLE LOAD /CHECK PAPER LOAD
N G co mm an d
N G da ta
C on te nt s of N G
Symptom
Cheking point
E1
52
PULLIN_TMG_TIMEOUT
Printing paper cannot be pulled in from a paper feed sensor (S2) to the inside of a unit
.
56
LOAD_PAPER_SHORT
.
Stepping motor harness is not connected.
when feeding paper, time runs out
“MEC-15 or MEC-20/CN202, CN206, IC204”
.
Sensor harness is not connected.
Detects short paper during load by a paper feed sensor (S2) when feeding paper, time
“SY-299/CN302, IC302”
.
Loss of synchronism in a stepping motor.
Relation of sensor
.
Overload is applied to grip roller mechanism.
Print paper cannot be pushed out from the inside of a unit to a paper feed sensor (S2)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC103”
.
Overlapped paper feed.
when paper ejection, time runs out
“SY-299/CN301, IC302”
etc.
Printing paper cannot be ejected from paper feed sensor (S2) to the outside of a unit
S2
runs out MECHA TROUBLE EJECT /CHECK PAPER EJECT
E1
58
59
PUSHOUT_TMG_TIMEOUT
EJECT_TMG_TIMEOUT
Example of possible cause
Relation of stepping motor
.
when paper ejection, time runs out MECHA TROUBLE PROCESS
E1
61
62
PP_LD_MISSING_ERR
PP_LD_JAM_ERR
Detects paper is not existed under paper exist timing conditions by a paper feed
Relation of stepping motor
.
Sensor harness is not connected.
sensor (S2) when retracting paper
“MEC-15 or MEC-20/CN202, CN206, IC204”
.
Overload is applied to grip roller mechanism.
Detects paper exist under paper is not existed timing conditions by a paper feed
“SY-299/CN302, IC302”
.
Loss of synchronism in a stepping motor.
Relation of sensor
etc.
sensor (S2) when retracting paper
.
.
“MEC-15 or MEC-20/CN101, CN103, IC101, IC103” “SY-299/CN301, IC302” S2 63
64
PP_JAM_ERR
PP_JAM_MISSING_ERR
Detects paper exist under paper is not existed timing conditions by a jamming sensor
Relation of stepping motor
.
Sensor harness is not connected.
(S10) when retracting paper
“MEC-15 or MEC-20/CN202, CN206, IC204”
.
Overload is applied to stepping motor mechanism.
Detects paper is not existed under paper exist timing conditions by a jamming sensor
“SY-299/CN302, IC302”
.
Loss of synchronism in a stepping motor.
Relation of sensor
.
Overlapped paper feed.
“MEC-15 or MEC-20/CN101, CN105”
etc.
(S10) when retracting paper 65
PP_PRINT_TIMEOUT
.
.
Long time is spent in printing, time runs out
“SY-299/CN301, IC302” S10 MECHA TROUBLE SENSOR
E1
73
RBN_CD_ALARM
Fall detection level of a ribbon cueing detect sensor (S3)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC103-
.
74
PAPER_LD_ALARM
Fall detection level of a paper in sensor (S1)
IC105”
etc,.
75
PAPER_IN_ALARM
Fall detection level of a paper feed sensor (S2)
“SY-299/CN301, IC302”
76
RBN_TYPE0_ALARM
Fall detection level of a ribbon type detect sensor 0 (S5)
Each sensor (S1-S7)
77
RBN_TYPE1_ALARM
Fall detection level of a ribbon type detect sensor 1 (S6)
78
RBN_TYPE2_ALARM
Fall detection level of a ribbon type detect sensor 2 (S7)
7f
ROOM_HEAT_ERROR
Detects abnormal high temperature in a room thermistor
“MEC-15 or MEC-20/THP201, CN202”
.
Deterioration in sensitivity of sensor due to dust
Defective of harness etc,.
“SY-299/CN302, IC302”
(ii)
(ii)
UP-20/21MD V1
A way at looking the list: For NG_CODE2 to 5, refer to HEX code converting as binary. (Example For h’42 = 0100 0010: sixth bit and first bit) NG_CODE2 NG command
NG data
Contents of NG
Symptom
E2
BIT 2
PAPER_JAM_SENS
Defective of a jamming sensor (S10) detection (when mechanism adjustment)
Cheking point “MEC-15 or MEC-20/CN101, CN105” “SY-299/CN301, IC302” S10
Example of possible cause
BIT 1
PAPER_EJ_SENS
Defective of a delivery flap sensor (S11) detection (when mechanism adjustment)
“MEC-15 or MEC-20/CN101, CN106” “SY-299/CN301, IC302” S11
BIT 0
DOOR_SENS
Defective of a front panel opening sensor detection (when mechanism adjustment)
SE-642 “KEY-49 or KEY-51/CN301, CN302” “SY-299/CN203, IC302”
.
.
Sensor harness is not connected. Sensor board is installed incorrectly.
NG_CODE3 NG command
NG data
Contents of NG
Symptom
E3
BIT 6 BIT 5
HEAD THERMISTOR
Defective of a temperature detection of a head thermistor (when mechanism adjustment)
Cheking point Thermal head “SY-299/CN401, IC302”
Example of possible cause
BIT 4 BIT 3
ROOM THERMISTOR
Defective of temperature detection of a room thermistor (THP201 on the MEC-15/MEC-20 board) (when mechanism adjustment)
“MEC-15 or MEC-20/THP201, CN202” “SY-299/CN302, IC302”
BIT 0
EEPROM
Cannot write or read correctly in EEPROM (IC102 on the MEC15/MEC-20 board) (when mechanism adjustment)
“MEC-15 or MEC-20/IC102, CN101” “SY-299/CN301, IC302”
.
Thermal head harness is not connected. etc.
.
Harness is not connected.
.
Harness is not connected.
NG_CODE4 NG command
NG data
Contents of NG
Symptom
E4
BIT 5 BIT 4
RBN_CD_SENS
Defective of a ribbon cueing sensor (S3) detection (when mechanism adjustment)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC104” “SY-299/CN301, IC302” S3
BIT 3 BIT 2
PAPER_LD_SENS
Defective of a paper feed sensor (S2) detection (when mechanism adjustment)
“MMEC-15 or MEC-20/CN101, CN103, IC101, IC103” “SY-299/CN301, IC302” S2
BIT 1 BIT 0
PAPER_IN_SENS
Defective of a paper in sensor (S1) detection (when mechanism adjustment)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC103” “SY-299/CN301, IC302” S1
UP-20/21MD V1
Cheking point
(iii)
Example of possible cause
(iii)
.
.
Sensor harness is not connected. Optical axis is out of place because of sensor board is installed incorrectly.
NG_CODE5 NG command
NG data
Contents of NG
Symptom
E5
BIT 5 BIT 4
RBN_TYPE_SENS2
Defective of a ribbon type sensor 2 (S7) detection (when mechanism adjustment)
Cheking point “MEC-15 or MEC-20/CN101, CN103, IC101, IC105” “SY-299/CN301, IC302” S7
BIT 3 BIT 2
RBN_TYPE_SENS1
Defective of a ribbon type sensor 1 (S6) detection (when mechanism adjustment)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC105” “SY-299/CN301, IC302” S6
BIT 1 BIT 0
RBN_TYPE_SENS0
Defective of a ribbon type sensor 0 (S5) detection (when mechanism adjustment)
“MEC-15 or MEC-20/CN101, CN103, IC101, IC104” “SY-299/CN301, IC302” S5
(iv)
(iv)
Example of possible cause .
.
Sensor harness is not connected. Optical axis is out of place because of sensor board is installed incorrectly.
UP-20/21MD V1
SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer : Check the metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA. Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’ instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.5 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. (See Fig. A)
To Exposed Metal Parts on Set 10 k Z
1.0 k Z
0.015 µ F
AC voltmeter (0.5V)
Earth Ground Fig A. Using an AC voltmeter to check AC leakage.
UP-20/21MD V1
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