Alesis DataDisk

Service Manual CONFIDENTIAL Property of Alesis Corporation 3630 Holdrege Avenue Los Angeles, CA 90016 COPYING IS PROHIBITED

© 1994 Alesis Corporation

Alesis DataDisK Service Manual V1.00 9/1/95

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PREFACE This document is intended to assist the service technician in the operation, maintenance and repair of the DataDisk MIDI disk drive. Together with the DataDisk Reference Manual, this document provides a complete description of the functionality and serviceability of the DataDisk. Any comments or suggestions you may have pertaining to the document are welcome and encouraged.

READ THIS! In addition to any purchase price that Alesis may charge as consideration for Alesis selling or otherwise transferring this service manual ("Manual") to you, if you are not a service and repair facility ("Service Center") authorized by Alesis in writing to be an authorized Service Center, Alesis sells or transfers the Manual to you on the following terms and conditions: Only Service Centers authorized by Alesis in writing are authorized to perform service and repairs covered by an Alesis warranty (if any), and transfer of the Manual to you does not authorize you to be an authorized Service Center. Therefore, if you perform, or if the Manual is used to perform, any service or repairs on any Alesis product or part thereof, any and all warranties of Alesis as to that product and any service contract with Alesis for that product shall be voided and shall no longer apply for such product, even if your services or repairs were done in accordance with the Manual. All service or repairs done by you or with reference to the Manual shall be solely your responsibility, and Alesis shall have no liability for any such repairs or service work. All such service or repairs are performed at the sole risk of the person performing the service or repairs. You agree that all such work will be performed in a competent, professional and safe manner at all times and to indemnify and fully hold Alesis and its successors and assigns harmless in the event of any failure to so perform. Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of resale or other transfer. As the owner of the copyright to the Manual, Alesis does not give you the right to copy the Manual, and you agree not to copy the Manual without the written authorization of Alesis. Alesis has no obligation to provide to you any correction of, or supplement to, the Manual, or any new or superseding version thereof. Alesis shall have the right to refuse to sell or otherwise transfer repair parts or materials to you in its sole discretion. You shall not use, sell or otherwise transfer spare or replacement parts supplied by Alesis to you (i) to repair or be used in products manufactured for or by third parties or (ii) to any third parties for any purpose. You shall not make any warranties or guarantees with respect to the products of Alesis or the use thereof on behalf of Alesis or in your own name. The foregoing describes the entire understanding related to sale or transfer of the Manual to you, and no other terms shall apply unless in a writing signed by an authorized representative of Alesis.

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WARNINGS TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS PRODUCT TO WATER OR MOISTURE.

The arrowhead symbol on a lightning flash inside a triangle is intended to alert the user to the presence of un-insulated "dangerous voltage" within the enclosed product which may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point inside a triangle is intended to alert the user to the presence of important operating, maintenance and servicing instructions in the literature which accompanies the product.

REPAIR BY ANY PERSON OR ENTITY OTHER THAN AN AUTHORIZED ALESIS SERVICE CENTER WILL VOID THE ALESIS WARRANTY. PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO COMPETE WITH ANY ALESIS DISTRIBUTOR OR AUTHORIZED REPAIR SERVICE CENTER IN THE PROVISION OF REPAIR SERVICES OR TO BE OR MAKE REPAIRS AS AN AUTHORIZED SERVICE CENTER. ALL REPAIRS DONE BY ANY ENTITY OTHER THAN AN AUTHORIZED ALESIS SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF THAT ENTITY, AND ALESIS SHALL HAVE NO LIABILITY TO THAT ENTITY OR TO ANY OTHER PARTY FOR ANY REPAIRS BY THAT ENTITY.

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SAFETY SUGGESTIONS Carefully read the applicable items of the operating instructions and these safety suggestions before using this product. Use extra care to follow the warnings written on the product itself and in the operating instructions. Keep the operating instructions and safety suggestions for reference in the future. 1.

Power Source. The product should only be connected to a power supply which is described either in the operating instructions or in markings on the product.

2.

Power Cord Protection. AC power supply should be placed such that no one is likely to step on the cords and such that nothing will be placed on or against them.

3.

Periods of Non-use. If the product is not used for any significant period of time, the product's AC power supply should be unplugged from the AC outlet.

4.

Foreign Objects and Liquids. Take care not to allow liquids to spill or objects to fall into any openings of the product.

5.

Water or Moisture. The product should not be used near any water or in moisture.

6.

Heat. Do not place the product near heat sources such as stoves, heat registers, radiators or other heat producing equipment.

7.

Ventilation. When installing the product, make sure that the product has adequate ventilation. Improperly ventilating the product may cause overheating, which may damage the product.

8.

Mounting. The product should only be used with a rack which the manufacturer recommends. The combination of the product and rack should be moved carefully. Quick movements, excessive force or uneven surfaces may overturn the combination which may damage the product and rack combination.

9.

Cleaning. The product should only be cleaned as the manufacturer recommends.

10.

Service. The user should only attempt the limited service or upkeep specifically described in the operating instructions for the user. For any other service required, the product should be taken to an authorized service center as described in the operating instructions.

11.

Damage to the Product. Qualified service personnel should service the unit in certain situations including without limitation when: a. Liquid has spilled or objects have fallen into the product, b. The product is exposed to water or excessive moisture, c. The AC power supply is damaged, d. The product shows an inappropriate change in performance or does not operate normally, or e. The enclosure of the product has been damaged.

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General Troubleshooting While this manual assumes that the reader has a fundamental understanding of electronics and basic troubleshooting techniques, a review of some of the techniques used by our staff may help.

1. Visual Inspection - A short visual inspection of the unit under test will often yield results without the need of complex signal analysis (burnt, or loose components are a dead giveaway). 2. Self Test - Alesis products that utilize microprocessor control contain built in test software which exercises many of the units' primary circuit functions. Self test should always be done following any repair to ensure basic functionality. 3. Environmental Testing - Applying heat and cold (heat gun/freeze spray) will often reveal thermally intermittent components (Clock crystals, I.C.s, and capacitors are particularly prone to this type of failure). 4. Burn in Testing - Leaving a unit running overnight often reveals intermittent failures such as capacitors that begin to leak excess current after a significant amount of time. 5. Cable Checks - Wiggling cables can reveal intermittent failures such as loose cables or poorly soldered headers. Remember to check power supply cables as well. 6. Flexing the PC Board - Poor solder joints and broken traces can often be found by pressing the PC Board in various places. 7. Tapping Components - Sometimes tapping on a component (particularly crystals) will cause it to fail. 8. Power-Down/up - Turning the unit off and back on rapidly several times may reveal odd reset and/or power supply failures. 9. Reset Threshold - A Variac (variable transformer) can be used to check reset threshold levels. This can be particularly useful in helping customers with low line problems. 10. Compressors - Using a compressor/limiter is often helpful when attempting to solve low level noise problems, as well as assisting with DAC adjustments. 11. Sweep Tests - Sweep generators are very useful in checking the frequency response envelopes of aliasing filters. 12. Piggybacking - Piggybacking I.C.s is particularly useful when troubleshooting large sections of logic. This is especially true when working with older units.

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Table of Contents PREFACE..................................................................................................... ii READ THIS!.................................................................................................. ii WARNINGS .................................................................................................. iii SAFETY SUGGESTIONS............................................................................. iv General Troubleshooting............................................................................... v 1.0 General Description ................................................................................ 1 2.0 Power Supply.......................................................................................... 1 3.0 The 8031................................................................................................. 1 4.0 The WD1772 Driver ................................................................................2 5.0 The Disk Drive......................................................................................... 2 6.0 Test Procedures...................................................................................... 2 6.1 Self Test.............................................................................. 2 6.2 Further Testing.................................................................... 3 7.0 Updates and Corrections ........................................................................3 7.1 National 74HC139s............................................................. 3 7.2 1N4001s.............................................................................. 3 7.3 Loose Regulators................................................................ 3 7.4 Opto Isolator Input Threshold ............................................. 3 7.5 R.F. Suppresion Chokes..................................................... 3 7.6 MIDI Output Pullup Resistor................................................ 3 8.0 Common Solutions.................................................................................. 4 8.1 General considerations....................................................... 4 8.2 Sys-Ex Dump Procedures................................................... 5 8.3 Hardware Troubleshooting.................................................. 17 9.0 Software History...................................................................................... 18 10.0 Format History....................................................................................... 23 11.0 Service Manual History .........................................................................24 12.0 Service Parts List.................................................................................. 25 INDEX........................................................................................................... 26

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1.0 General Description The Alesis DataDisk is a 1 rack space device for storing and retrieving MIDI data (system exclusive and real-time sequences) directly to a double sided, double density (880K) floppy disk The electronics involved are extremely simple, and the unit should be relatively easy to trouble shoot. The technician should take the time to familiarize themselves with the software history (section 9.0) and the format history (section 10.0). These will likely be your greatest source of troubleshooting knowledge. Care should always be taken to upgrade the unit under test to the latest revision of software (currently 1.03 for non SQ, or 2.11 for SQ) in order to ensure the correct operation of the unit in the future.

2.0 Power Supply The power supply starts with the 9V A.C. adapter (P4). After entering through J8, it is noise filtered L6, C15, and C17) and switched by S1. From here, the signal is split into three distinct sections. The -12V (necessary only with some drives), the + 5V rail, and the -0.6V bias voltage for LCD contrast. The -12V rail consists of a voltage doubler (C22, C23, D4, D5, C14, C16), a regulator (U13), and filter capacitors C18-C19. The+ 5V rail consists of a rectifier (D4, C20, and C25), a regulator (U14) and filter capacitors C24 and C26. Note that when a+ 5V only disk drive is in the unit, the+ 12V regulator is removed, and a jumper is installed, providing a little extra input voltage to the regulator and ensuring that the supply doesn't load down. The -0.6V LCD bias voltage is derived through a negative cycle rectifier (DXX, C13), and a forward biased diode/resistor voltage divider (D2, R17).

3.0 The 8031 The 8031 MPU is the heart of the DataDisk's control section. It handles everything from keypad input and MIDI I/O, to sequence recording and playback. Note that the 8031 data buss serves a dual purpose. This buss multiplexes between low order addresses (1st 8 bits), and data. Latch U18 is used to hold the low order address half, during 8031 read and write cycles. The EPROM (U8) is used to hold 8031 program information. The Pseudo SRAM (U9) holds system variables, scratchpad space for data backup, as well as sequence data. Note: that the Psuedo Sram is directly replacable with a Sony 62256 or '257 SRAM. Z2 provides the 12MHz 8031 clock. MIDI I/O is handled through the 8031's built in RXD (Read Serial Data), and TXD (Transmit Serial Data) ports. LCD output and the WD1772 (disk drive controller I.C.) are handled through memory mapped I/O (see section 3.2). Keypad decoding is performed through the 8031's built in generic I/O ports. Note that the WD1772 can inform the 8031 of special events (I.e. internal buffer is full or empty) via U6 (pins 5, 6) to input port P3.2 (pin 12).

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4.0 The WD1772 Driver CS - Chip Select R/W - Read/Write to drive A0, A1 - Address 0, 1 Selects internal registers MR - Master Reset D0-D7 - Bidirectional data buss DIRC - Determines step motor direction CLK - 8MHz clock RD - Raw data input from drive MO - Motor on WG - Write gate (valid just prior to writing to disk) WD - Raw data to be written TRK0 - Input from drive to inform 1C when the drive heads are directly over track 0 IP - Input from drive to inform the 1C when the physical index hole is

encountered WPRT - Write protect input from drive (sampled before any write) DRQ - Indicates when the internal Data Register is full or empty INTRQ - Interrupt to the microprocessor

5.0 The Disk Drive Earliest units incorporated a Fujitsu drive (which requires+ 12V), while later versions used the Sony version (which only needs+ 5V to operate). Note that because of the different screw footprint, the bottom panel will also need to be replaced when changing from a Fujitsu to a Sony. It's also extremely important to remember that because the Sony drive is physically longer, it is possible to damage the 34 pin ribbon cable running to the drive, if a long screw is used in the casetop above the cable (the cable gets pinched between the screw and the drive).

6.0 Test Procedures 6.1 Self Test The self test can be performed using the following steps: • Connect a MIDI cable between MIDI in and MIDI out. • Insert a formatted disk into the drive. • Power the unit up while holding the "Format" and "Do/Yes" keys. The unit will now test: ROM RAM MIDI LEDs Disk Drive Buttons (LCD shows latest button pressed) Press Value up and Value down simultaneously to exit.

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6.2 Further Testing Extended testing should include doing a "Send All Files" from a test disk that contains several sys-ex dumps, as well as a couple of sequences (if version 2.XX software installed Actually receiving and sending a dump or sequence to and from a MIDI instrument is a log addition to the procedure.

7.0 Updates and Corrections 7.1 National 74HC139s These components (found in early units only) were found to differ slightly in design than other manufacturers rendering them incompatible with the design of the DataDisk. The symptoms include intermittent reset, frozen LCDs, and intermittent drive operation. These parts should be replaced with non National components (we are currently using Tl parts as replacements). 7.21 N4001 s

These components were found to be somewhat unreliable (particularly in the+ 5V supply) and should be replaced with 1N4003s or 1N4004s. This is usually only necessary if one of the diodes is bad. But at this point all of the 4001s in the machine should be replaced. Although they usually just fail, they can occasionally manifest themselves as an intermittent problem (i.e. unit resets anytime the drive turns on, etc.). 7.3 Loose Regulators It has been found that some screws holding down the heat sinks can come loose during shipping. Be extra sure that these screws are tight before returning the unit to the customer. Loose regulators can loose heat sinking, and start to go into thermal shutdown after extended use. 7.4 Opto Isolator Input Threshold Since the original design of the DataDisk, it has been found that a lower MIDI input threshold increases the probability of correct data reception. The original value of the threshold resistor was 47K, and has been changed to 10K. This can be accomplished by soldering a 12K or 13K between pins 5 and 7 of the opto isolator (U1). Note: Be sure the resistor is on pins 5 and 7 (a common mistake is to solder the resistor to pins 6 and 8. 7.5 R.F. Suppresion Chokes Any R.F. chokes should be checked to be sure that they're not loose. Any loose chokes should be glued down (hot glue is recommended) to the P.C. Board. It is also recommended to place a small amount of hot glue (or electrical tape) to the top of the choke to prevent it from shorting to the case top. 7.6 MIDI Output Pullup Resistor In the earliest units it was found that MIDI out was somewhat unreliable. This was solved by installing a 4.7K pullup resistor between pins 3 and 14 of U6. •

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8.0 Common Solutions 8.1 General considerations Because there is no real standard for manufacturer system exclusive data dump formats (how a product dumps data, does it care about MIDI channels, etc.) there is a great possibility for confusion. There are some basic things to check before considering the possibility of mechanical failure, or even incompatibility. Complaint The instrument does not appear to receive data sent to it from the DataDisk.

The DataDisk does not appear to receive data sent to it from the. instrument.

Possible problem Incorrect cabling.

System exclusive filters on the instrument are turned off. Memory protect on the instrument is turned on. Instrument doesn't show any indication that it has received a data dump. (e.g. Matrix 6, R-8) Channel or device # on the instrument (though not in MIDI spec., some manufacturers include this information in the data dump and instruments might only respond when the channel/ID # matches). The instrument only receives into the edit buffer. The instrument only receives into main storage (the edit buffer does not reflect those changes). Incorrect cabling.

System exclusive filters on the instrument are turned off. Disk not formatted. High density disk.

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Solution Make sure Midi out of the DataDisk is connected to MIDI in of the instrument (always ask if they have gas in the car). Turn system exclusive on. Turn memory protect off. Check programs to see/hear that programs have been received. Check channel/device ID# on the instrument.

Store the program before continuing. Change programs to change data in the buffer. Make sure Midi out of the DataDisk is connected to MIDI in of the instrument (always ask if they have gas in the car). Turn system exclusive on. Check disk formatting ("INFO" button). Not a common problem, however, some unreliability has been noticed when using high density disks.

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8.2 Sys-Ex Dump Procedures While the operation of the DataDisk is usually straight forward and simple, it's not a guarantee that the operation of the instrument is equally easy. Some button sequences for data saving or loading may be a bit unusual. The following is provided to help with some of the situations that have proven to be the most difficult for customers. Note that not all of these procedures have been tested but should be reasonably accurate. In cases where differences are noticed, a quick trip to the instruments instruction manual would be in order. Manufacturer/Product

Operation

Procedure

360 SYSTEMS Audio Matrix •

Dump

Place Audio Matrix in the MIDI RECEIVE CHANNEL mode. Press ENTER to initiate ("UP"). No special provisions. Display - all LEDs off while receiving data. Upon completion the Audio Matrix automatically goes into the PATCH SELECT function. Press RECEIVE button to place MIDI patcher in Receive Channel Edit mode (i.e. Receive Channel LED already lit). Use "" buttons to position the dot under the number of the input jack that is connected to the DataDisk output. Press RECEIVE to initiate. Press RECEIVE. Use the "" button to place the dot under the appropriate jack number (1-8) that the DataDisk output is connected to. All LEDs turn off momentarily while loading data, and then displays the newly loaded configuration upon dump completion.

Load

MIDI Patcher

Dump

Load

ALESIS

MMT-8

Press and hold the TAPE button. Press PAGE DOWN. until display reads "SEND ALL PARTS & SONGS OUT MIDI" Press RECORD to initiate. Display reads "RECEIVING DATA FROM MIDI" while receiving, then goes to Song 99 upon completion. Hold TAPE button. Press once to make sure MIDI is on. Press SELECT> 4 more times to turn MIDI Merger off. Use the SELECT> and SELECT< buttons to select one of the following dump commands: SEND PRESET (single preset) SEND MPT SEND ALL PRESETS (1 message) Press UP to initiate (no display change while sending). Make sure the Multiverb is set to the same MIDI channel as when the dump was sent (Press EDIT. Press MIDI/UTILITY. Use SELECT> to select MIDI channel.) Make sure MIDI Merger on the Multiverb is off. Display-Upon dump completion, the display of the current program name is updated but shows a V sign to indicate that the edit buffer has changed.

Load

CAE LM850

Press CONSOLE button. Press NEXT (10 times) until the DUMP page is reached. Select the DUMP option. Press GO to initiate. Make sure Sysex is enabled. Display reads "INCOMING MIDI DATA DUMP".

Dump

Load

Digital Music Corp. MX-8

Dump

Press FUNCTION until you get to "XMIT MEMORY" page. Use the cursor keys to select the MIDI output channel. Press YES/+ 1 twice to initiate the dump (Display reads "Sending..."). Memory protect must be off.

Load

Digitech DSP128

Hold the SELECT button until the display is in select program mode (Display reads "Pxxx", where xxx is the program number 1-128. If display reads "OFF" the press EFFECT/MIDI before pressing SELECT). Press and hold the EFFECT/MIDI button. The display should briefly read "OFF", followed by "CHxx" (MIDI Channel xx 1-16, "o" for Omni, or "n" for None). While holding EFFECT/MIDI, press the UP button to initiate the dump (display will read "out" while sending). Note that the DSP128 must be in the same MIDI channel (or omni) in order to receive the data.

Dump

Load

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DSP128+

Dump

DSP256

Dump

GPS5

Dump

IPS 33

Dump

Load

MEQ7

Dump

MEQ14

Dump

MEQ28

Dump

With unit set to program 127, algorithm A0, press the MIDI and UP buttons at the same time. Press the MIDI button. Use PARAMETER LEFT/RIGHT buttons to get to the "MIDI DUMP" utility, then press the PARAMETER UP button Press the MIDI button, then press PROGRAM UP button. Preset Dump: Press and hold the MIDI button. Press the HORIZONTAL button once. Display will show "d Pr". Press the YES (UP) button. Harmony Definition Dump: Press and hold the MIDI button. Press the HORIZONTAL button twice. Display will show "d hd". Press the YES (UP) button. Dump All: Press and hold the MIDI button. Press the HORIZONTAL button thrice. Display will show "d Al". Press the YES (UP) button. Press and hold the MIDI button. Press the HORIZONTAL button until the display shows "LOAD". (The IPS 33 must be in the LOAD mode to receive Sysex). Press the MIDI button, then press the STORE button. Press the MIDI button, then press the STORE button. Press the MIDI button, then press the STORE button.

Dynacord ADD One

Program Dump

Sample Dump

All Loads Program Load

Sample Load

ADS/ ADS-K/ ADDTwo

Dump

Load

Press COPY 5 times to get to page 5. Press STORE twice for dump all. (display reads "SENDING ALL Hold MIDI and press REC on ADD-Drive. Select UNIVERSAL sample dump type. Press >. Select a sample to dump. Press YES to initiate (display r e a d s "BUSY: S E N D I N G SAMPLE DATA OVER MIDI") Memory protect must be OFF in order to receive. Display - there is no indication that the ADD One is receiving data, nor that a dump has been completed. Display reads "INCOMING MIDI SAMPLE DUMP IN PROGRESS" while receiving data, then "SAMPLE COMPLETED" upon completion. This only sends sample dump over MIDI. Press MIDI. Press "5" on ADS/ADS-K or "6" on ADD-2 to get to "REQUEST SAMPLE" page. press > twice to get to "SEND SAMPLE" page. Select sample to dump. Press GO to initiate (Display reads "SENDING SAMPLE OUT MIDI"). Must be in one of the two sample dump pages to receive. Display will read "RECEIVING SAMPLE FROM MIDI ..."

E-MU Systems Elll

Dump

Emax

Proteus

Dump

Alesis DataDisk Service Manual 1.00

Supports both open and closed loop dumps (Use open). The Emax requires closed loop for receiving sample dumps, and is therefore incompatible | with DataDisk. Press MASTER. —— Use the DATA knob to get to the SEND M I D I . DATA page. | Use the Cursor key and data entry control knob | to select the dump type. |

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Emu Proteus Cont.

The LED above the ENTER button should be flashing. Press enter to initiate the dump. Display should read "RECEIVING DATA".

Load

Ensoniq ESQ-1

Dump

Enable the ESQ-1's sysex (Keys+ C T + P C + S S + S X ) and note the MIDI channel in the ESQ-1's MIDI page. Press STORAGE. Select MIDI-SEND. Press STORAGE. Select the dump type: (Use the "Seq to ESQ-1" option to save sequences as the "Seq to Mirage" will not work). Make sure Sysex is enabled and set the MIDI channel (Must be the same as when saved). Select INTERNAL PROGRAM BANK. There is no display change while the ESQ-1 is receiving. On completion of the dump the unit will revert to either the sequence page or the current program displayed is updated, depending on the dump type. Due to the timing needs of the ESQ-1 it will be necessary to store patches and sequences separately (not as a mult file). Press PARAM. Press STORAGE. Use SCROLL or YES/NO buttons to select the dump type. Press and hold SCROLL and STORAGE to initiate the dump. Note that SCROLL advances the display when it is released. (The display will read "MIDI Data Xfer" while sending and "Data Xfer Done" when finished.) Make sure sysex is enabled (On the MIDI page set MIDI enables to ENBL=KCPSYS). Must be on the Program page to receive. When receiving a single sound, the display reads "Data Xfer Done" then goes to the storage page. The program is on the Write page and is only in the edit buffer. It must be written to memory before use.

Load

All types.

ESQ-M

Dump

Load

JL Cooper FaderMaster

This unit cannot initiate a dump on it's own. It must initiated as a dump request from the DataDisk. Press REQUEST twice. Use SCROLL to select JLCoop (DataDisk display will read "REQUEST SYSEX FOR JLCoop?"). Press DO/YES (display will read "REQUEST JLCoop FaderM?"). Press DO/YES to initiate the request. The FaderMaster only displays one of it's digits while sending data. The FaderMaster only displays one of it's digits while receiving data. Hold down SHIFTSYNC MODE. Depress buttons "1" and "8", then "WRITE" on front panel. Press CLEAR to get display to read "JLCooper PPS-100". Press ENTER. Press NO 3 times to get to SETUP page. Press YES. Press ENTER 4 times to get to DUMP MEMORY page. Press YES to initiate the dump.

Dump

Load MixMate MSB+

Dump Dump

PPS-100

Dump

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JL Cooper PPS-100 Cont.

Load

Press CLEAR to get display to read "JLCooper PPS-100 SYSEX PORT ON". Connect the DataDisk MIDI out to the SYSEX port of the PPS-100. Displays "SYSEX DUMP IN" while receiving.

Dump

Use+ /YES and -/NO buttons until display reads "SYSTEM/MIDI = TRS". Press SYSTEM 7 times until display reads "MIDI DATA DUMP" Use+ / Y E S and -/NO buttons to select dump type: a) PACH sends current patch. b) BLOK sends entire bank. Press SYSTEM ("EXE? ="). Press+ /YES twice to initiate dump. RCV EXCL must be "=ON". ("SYSTEM/MIDI = SYS") Bank data is received automatically and replaces the currently selected bank (I or i). Display -??? Press MIDI (" MIDI BASIC " page). Press right cursor button (—>) twice to position cursor on Exclusive TRS parameter. Also turn RCV off. Use Increment Dial to set parameter to ON (enables System exclusive transmission). Press left cursor button (

Request from DataDisk front panel

Load

Matrix-6

Dump

Load

Matrix-12

Dump

^ ^

Load.

Matrix-1000

Dump

Load

OB-8

Dump

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Use < or > to select sample# or AL. Press ENTER to initiate. The display reads "Sd" and the BUSY LED flashes while dumping. When the dump is finished the BUSY LED stops flashing. Press REQUEST. Use scroll buttons to select sample #. Press ENTER to initiate. The DXP-1 just flashes the BUSY LED while dumping (no display change). The BUSY LED stops blinking when finished. The display reads "UF" and the BUSY LED is on while receiving and turns back off when finished. Press MASTER. Select PARAMETER 11 for SEND ALL or PARAMETER 10 for SEND CURRENT PATCH. Press VALUE button (far right box under display). Press YES/ON to initiate. Sysex must be enabled (MASTER parameter 4). Memory protect switch must be in the OFF position. There are no display changes to indicate that the MATRIX-6 is receiving MIDI data. Press MASTER. Press button below "MIDI" in display. Press button below "ENABLES". Press button below "SYSEX" in display if it is not underlined. Press MASTER. Press button below "MIDI". Press button below "SEND" in display. Turn encoder 4 left until display reads "ALL". Select RECV ONE on DataDisk (if selected earlier, extra unnecessary files will be created). Press button below "START" in display (display reads "SENDING"). NOTE: The DataDisk display will indicate saving "XPANDR" for approximately half of the dump, followed by "MTRX12" for the remainder. The file will be saved as "MTRX12". Make sure SYSEX is enabled. Memory protect switch must be in the OFF position. There are no display changes to indicate that the MATRIX-12 is receiving MIDI data. The program must then be reselected in order to place the new program into the edit buffer. Press SELECT until the Data Dump function is selected. Use the "+" and "-" keys to cycle through the three options: a) 0db=dump current bank b) 1dO=dump one (current) patch. c) 2dA=dump all ram patches. Press ENTER to initiate. Make sure memory protect is still off. There are no display changes to indicate that the MATRIX-1000 is receiving MIDI data. Enter Page 2 (press page 2 twice if not already in page 2). Button A LED must be on. Press and hold the WRITE button until the WRITE LED illuminates. This sends the current patch. Note: The DataDisk provides an OB-8 request which automatically requests all 120 patch dumps and stores them in one file.

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Oberheim OB-8 Cont.

Load

Xpander

Dump

Button A LED on page 2 must be on. | Memory protect on the rear panel must be off. Press MASTER. Press button below "MIDI" in display. Press button below "ENABLES". Press button below "SYSEX" in display if not underlined. Press MASTER. Press button below "MIDI". Press button below "SEND" in display. Turn encoder 3 until display reads "ALL PATCHES". Select RECV ONE on DataDisk (if selected earlier, extra unnecessary files will be created). Press button below "START" in display (display reads "SENDING"). Make sure SYSEX is enabled. Memory protect switch must be in the OFF position. There are no display changes to indicate that the Xpander is receiving MIDI data. The program must then be reselected in order to place the new program into the edit buffer. Go to MASTER SECTION and select DUMP/LOAD. Use arrows to select dump type: a) SO=Send One b) SA=Semd All c) SE=Send Edit Press ENTER twice to initiate. Display reads "Ld" while Perf/x and "Rc" when finished.

Load

*

Perf/x

Dump

Load

Roland D-50

Press MIDI. Press PATCH EDIT twice. Press U-TONE EDIT. Press INCREMENT to turn system e x c l u s i v e on. Press and hold DATA TRANSFER. Press KEY MODE to select BULK DUMP (for one way transfer). Release both buttons. Press ENTER to initiate the dump (display will read "Sending..." while sending and "COMPLETE" when done). System exclusive must be enabled. Memory protect must be turned off. Press and hold DATA TRANSFER. Press SPLIT POINT to select BULK LOAD (for one way transfer). Release both buttons. Press ENTER (display reads "Waiting..." until file is sent. It then reads "Loading...", and finally "Bulk Load Complete" when finished). NOTE: The D-50 data must be dumped and loaded in one way transfer mode. If the data are dumped from the D-50 in handshaking mode, the DataDisk will only receive a small number of bytes. If a load is attempted in handshaking mode, the D-50 will display "MIDI Communication Error". Press DATA TRANSFER. Press FUNCTION until the display shows "BULK DUMP". | Use VALUE to select the data group to be transferred. \ Press ENTER to initiate the dump. Memory protect must be turned off. Press DATA TRANSFER.

Dump

Load

GM-70

Dump

•

Load

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Roland GM-70 Cont.

Juno-1/Juno-2

Dump

JX-8P

Dump

Press FUNCTION until the display shows "BULK LOAD". Use VALUE to select patch group. Press ENTER. The GM-70 is ready to receive. Press DATA TRANSFER, WRITE, and BULK DUMP to initiate. Turn system exclusive on. Select a bank (Press CARTRIDGE, INTERNAL, or PRESET). Select the patch to send by pressing "1" through "32". The dump is initiated when a patch is changed (if the current patch is reselected, nothing is sent out MIDI). NOTE: The only way to dump from the JX-8P is for the user to individually select each patch in which case the parameters for that patch are sent out as a sysex message. System exclusive must be enabled. Memory protect must be turned off. When the dump is complete, the 2 digit patch # will flash to indicate that an edit has occurred. The patch then must be stored (only the edit buffer was loaded). NOTE: The only way to load all patches is to individually load each patch separately. This unit is not compatible with the DataDisk. Press DATA TRANSFER. Use the PARAMETER button to select the dump type: a) P-A = Patch Bank A b) P-B = Patch Bank B c) CM = Chord Memory d) T-A = Tone Bank A e) T-B = Tone Bank B Press WRITE to initiate. Turn Memory Protect off. Press DATA TRANSFER. Use PARAMETER button to select one way data transfer (display reads "LOAD* DUMP"). Use VALUE button to select type of information to load (display reads "RUN" while receiving and "END" when finished). Make sure system exclusive is turned on. Press MIDI (if the MIDI LED isn't already lit). Press WRITE. Use the alpha dial to select "MIDI BULK DUMP". Press ENTER (Display will flash each character of "MIDI BULK DUMP" until the dump is completed [about 23 seconds]). Memory protect switch on the front panel must be OFF. System Exclusive must be turned ON. Press MIDI. Press CURSOR PAGE. Press "8" on the number pad (display reads "BULK DUMP"). Press "1" on the number pad for dump ALL. Press ENTER twice to initiate the dump. System Exclusive must be ON, There is no display change to indicate that the R-8 is receiving data, or that the dump has been completed. This unit does not implement the MMA Standard and therefor is not compatible with the DataDisk. A dump cannot be initiated from the front panel and instead must be initiated from the DataDisk. Place the TR-707 into TRACK PLAY mode.

Load

JX-10 MKS-50

Dump

Load

MKS-70

Dump

Load

R-8

Dump

Load

S-50/S550

TR707/727

Dump

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09/01/95

Roland TR707/727 Cont.

Since handshaking is required, a closed MIDI loop must be established (cables both to and from the DataDisk). Issue request from DataDisk. All TR-707 LEDs turn off while it is dumping data. Place the TR-707 into TRACK PLAY mode Since handshaking is required, a closed MIDI loop must be established (cables both to and from the DataDisk). Send file from DataDisk. All TR-707 LEDs turn off while it is receiving data. Press EDIT, Use cursor to select UTIL. Press ENTER. Use cursor to select BULK. Press ENTER to initiate (display reads "TRANSMITTING.."). System Exclusive must be ON. There is no display change to indicate that the unit is loading or completed.

Load

U110

Dump

Load

Waldorf Electronics Execute a Store command. Press the STORE button again. Use the ALPHA dial to select the data to be dumped. Press the OK button to initiate the dump. Execute a Store command. Use the ALPHA dial to select the data to be loaded. Press the OK button to allow the data to be sent from the DataDisk.

Dump

MicroWave

Load

Yamaha DX7 Special Edition

Press FUNCTION. Press "8" (display shows "Midi Sys Info" Press ON. Press "8" (display shows "MIDI TRANSMIT?"). Press YES to send (display will blank until complete). Note: Only voice data is sent from the MIDI transmit page. No function parameters are transmitted. To transmit function data with voice data, Midi Sys Info must be on; when changing patches, the voice and function data for the selected patch will be sent out MIDI. Memory protect must be OFF. Sysex must be ON. Press FUNCTION. Press OPERATOR until you get to the Memory Control page. Press "1" until you get to the Transmit Bank page. Press YES to initiate. Note: If DataDisk is in RECV ONE mode and you transmit a bank from the DX7, the DataDisk will store 2 files (one DX7 containing data and one TX816 containing function data). If the DataDisk is in RECV MULT, the data will be stored together as a single TX816 file. Memory Protect must be OFF. Sysex Filter In filter must be ON. Module Mode must be ON. Bank Mode must be ON to receive to the | original bank, and OFF to receive to the current bank. The right LED decimal point will light while receiving data, and either "AU" or "AF" when finished (depending on the data type loaded).

Dump

Load DX-7 with E!

Dump

Load

•

Alesis DataDisk Service Manual 1.00

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09/01/95

DX711

Dump

Press EDIT. Press "32" (MIDI 2) until you get to the desired transmit page. Use the CURSOR buttons to select the dump type. Press YES twice to initiate. Memory protect must be OFF. The device # when the data are received must match the device # as when the data were sent. Display reads "** BUSY " Now receiving!" while receiving and "** MIDI bulk data received!" upon completion. Memory protect must be OFF. Press Sysex Info button #5 to get to MIDI Transfer page. Press YES to initiate. Press MODE so that display reads "SHIFT MODE". Press DUMP/INIT 3 times to get to the MIDI TRANSMIT page. Press YES to initiate the dump. Note: 1) The TX7 sends 2 dumps (1 voice data as a DX7 file and 1 function data as a TX816 file) . 2) The DataDisk must be in RECV MULT to properly receive all data. Otherwise, the MIDI OVERFLOW message will be displayed on the DataDisk, and only the voice data will be stored. Memory protect must be OFF. Display reads "MIDI Received " while receiving and "MIDI Received " upon dump completion. Press UTILITY. Press button 1 below display "trns". The 1 button below the display can now be used to select between nine transmit pages in rotation as follows: 1) "Transmit voice edit buffer?" 2) "Transmit 1-32 voice data?" 3) "Transmit 33-64 voice data?" 4) "Transmit performance edit buffer?" 5) "Transmit 1-64 performance data?" 6) "Transmit system setup data?" 7) "Transmit micro tuning edit buf?" 8) "Transmit?"micro tuning 1-2 data 9) "Transmit?"micro tuning cart data Press YES from a page above (display reads "Are you sure?". Press YES (display reads ""BUSY" Now transmitting!" and changes to "Completed!" when finished. NOTE: The DataDisk will store each dump into an individual file if it is in RECV ONE. Placing the DataDisk in RECV MULT will allow all of the dumps to be stored as one file. When receiving, the DataDisk will display TX802 for dumps 4-6, DX7II for dumps 7-9, DX7 for dump 1, and DX7II followed by DX7 for dumps 2-3. Memory protect must be OFF. Display reads ""MIDI bulk data- Now receiving!" while loading and ""MIDI bulk data received!" when finished. Press UTILITY. Press PARAM until you get to the "MIDI CONTROL?" page. Press YES. Press PARAM until you get to the transmit pages (Voice, Perfrm, Setup). Press YES to initiate the dump (display reads Transmitting!!". Note: The DataDisk must be in RECV MULT when sending setup data. Memory protect must be turned OFF.

Load

DX100

Dump

TX7

Dump

Load

TX802

Dump

Load

TX81Z

Dump

Load

Alesis DataDisk Service Manual 1.00

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09/01/95

Y a m a h a TX81Z

Cont.

Sysex must be enabled. Display reads "MIDI Received" on completion.

8.3 Hardware Troubleshooting Described Failure No

lights. No power. Completely "Dead".

Unit powers up, but does not function.

Possible Causes

Possible Solutions

Power supply (A.C. adapter). Faulty 1N4001 diode (Usually D6). Faulty 8031 (U11). Faulty 74HC573 (U10). National 74HC139 (U7). Faulty 8031 reset circuit.

No (or scrambled) LCD, but unit functions.

Loose cable.

No MIDI in.

National 74HC139 (U7). Bad LCD. Opto isolator threshold resistor (R28) is still 47K.

No MIDI out.

Faulty opto isolator (U1). Faulty 8031. Opto isolator threshold adjustment soldered on wrong pins. No MIDI out pullup resistor.

Drive not responding (Drive errors).

Fault MIDI out inverter (U2) Faulty 8031. Faulty Drive

•

Files getting scrambled.

resistor

Faulty WD1772 controller. Faulty 8031 34 pin ribbon cable pinched by case screw or faulty. Old version of software. Faulty PSRAM.

Replace and retest. Replace with a 1N4003 type and retest. Troubleshoot and repair as necessary. Troubleshoot and repair as necessary. Replace if necessary. Check 8031 pin 9 for momentary spike during unit power up. Troubleshoot and repair as necessary. This one seems to occur frequently in older units during shipping. Hot glue should be applied to the reseated cable to prevent reoccurrence. Replace if necessary. Replace and retest. Measure between pins 5 and 7 of the opto with an ohm meter. If it reads 47K then install a 12K or 13K resistor between pins 5 and 7 of the opto isolator. (see section 7.4) Replace and retest. Replace and retest. Check to be sure this resistor is soldered between pins 5 and 7 (not 6 and 8). Check to be sure that a 4.7K resistor has been installed between pins 3 and 14 of U6. Install if necessary. Replace and retest. Replace and retest. Replace and retest. (Be sure to replace bottom panel when changing from a Fugitsu? the newer Sony drive section 5.0). Replace and retest. Replace and retest. Check cable for pinch marks. Replace if necessary, Retest. Update EPROM and retest. Replace and retest (see section 3.0 regarding PSRAM replacement).

All trademarks are property of their respective companies. •

Alesis DataDisk Service Manual 1.00

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9.0 Software History DATE

VERSION

COMMENTS_________________________

9/29/89

1.00 First production release

10/10/89

1.01

10/15/89

1.02

Fixes Roland D-50 (D-series) transfer problems.

02/27/90

1.03

Checksum: B095 (internal) / AFDC (external)

1) Fixes the 1-line display problem that occurred with some units on power-up.

1) Fixes the Roland TR-707 transfer problems. 2) Fixes the backup ("Replace file with same name?") problem created when trying to backup a file on an empty disk that previously contained that file (now deleted). Work around: either do a Delete All or re-format disk. 3) Now accepts undefined 1-byte ids (60H thru 7CH) 4) Copyright message was added at power-on and reads:

I

(c) 1989 Alesis __________Corporation________

5) Kawai K5/K5m now functions 6) Somtimes a unit would power with the display showing "NO DISK IN DRIVE", when in fact there was. This is now fixed. 05/22/90

2.00

Checksum: 3ABB (internal) / 39B2 (external)

Bug Fixes: 1) Fixes the incomplete file transfer bug (for this bug to have occurred, the disk would have to be write-protected and the file sent would have to have two consecutive blocks of data more than 5 sectors apart) 2) Fixes the incorrect free bytes calculation (prevents this from happening as well as correcting older disks) (for this bug to occur, the file received would have to fall on a 256 byte boundary — i.e. # of bytes exactly divisible by 256). Added Features: 1) Roland U-220 product name now displayed 2) MIDI backup disk preserves multi file status (m) 3) MIDI Real-Time record/playback feature added* 4) MIDI parameters stored to disk feature added* See Data Disk Version 2.00 New Features

Alesis DataDisk Service Manual 1.00

18

09/01/95

06/14/90

2.01

Checksum: 3A94 (internal) / 3964 (external)

Change: 1) Power-up display message changed to: Alesis DataDisk SQ 08/21/90

2.02

Checksum: 0014H (internal) / FE2AH (external)

Bug Fixes: 1) Fixes the number of disk swaps for files < 1K. Changes: 1) A MIDI Sequence Receive will not be initiated until the first non-F8H byte is received. This change was made to accommodate the sequencers that always send out MIDI CLOCK (F8H). Note that active sensing (FEH) and system reset (FFH) are also still ignored at all times. Added Features: 1) Alesis SR-16 product added 2) The disk is checked for disk change upon receiving new data and the following message is displayed if a disk change occurred: DISK WAS CHANGED MUST PRESS RECV

This was added to prevent someone from entering the Receive page/ swapping disks, and then receiving data (without pressing the Receive button again). The DataDisk's internal RAM would still contain the old disk directory. Two possible undesirables could result: the current disk directory would get updated with the previous disk's directory info and the new data might possibly be stored over good data. 3) A hidden feature which dumps the disk contents was added. To access this feature, the user must press and hold the Send button and then the Backup button. When the Do/Yes button is pressed while these two buttons are held, the Data Disk will start sending the disk contents and the display will read:

10/12/90

2.03

Checksum: 0061H (internal) / FEC4H (external)

Changes: •

Alesis DataDisk Service Manual 1.00

19

09/01/95

1) Slightly changes the disk format (gap 3 increased from 24 bytes to 64 bytes). This decreases gap 4 by 200 bytes. Compatibility is maintained with previous software releases. 2) Checks for zero bytes before storing file. If zero bytes, the file is not stored (operation is aborted) 10/18/90

2.04

Checksum: 7220H (internal) / 70B4H (external)

Changes: 1) Products with 3 byte sysex IDs whose second byte is non-zero and whose third byte is less than 32H would display an incorrect manufacturer name although the data would be ok). Although this has not been a problem since no products currently have such IDs, it has now fixed. 2) Any disk formatted with version 2.04 will be recognized by the software as a new version format (2), while all older disks will be recognized as the old version format (1). The display for INFO page 3 has been changed to indicate the current disk format version as shown below: Disk Format 2, Software v2.04 3) G.T. has been added as a manufacturer (ID 000047H), and Trio has been added as a G.T. product (ID 00). 12/20/90

2.05

Checksum: 3AF7H (internal) / 3A2AH (external)

Changes: 1) While sending a file, if MIDI echo was on and the DataDisk was receiving MIDI information, the file would not be sent correctly. This has now been fixed. 2) All individual's names have been removed from the software.

1/28/91

2.06

Checksum: 4213H (internal) / 406AH (external)

Changes: 1) While sending a sequence file, the note history buffers were not updated correctly when program change, controller, etc. data was mixed with the note data. This resulted in extra note-offs sent unnecessarily when the send was aborted; this extra MIDI data could cause a MIDI buffer overflow on instruments receiving this data. 5/20/91 2.07 Checksum: 5719H ( i n t e r n a l ) / 558BH ( e x t e r n a l )

1) When loading a disk with MIDI Program Receive channel saved, user would have to enter the MIDI Program channel page before the DataDisk would recognize the program change. This problem is fixed.

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09/01/95

2) When backing up a file to a backup disk that already had that file backed-up as the last file on that disk, the newly created backup file would be displayed as a multi-file, would not send, nor could be deleted. This problem is fixed. Work around: Delete the file before doing the backup (only need to do if overwriting the last file) 3) Added Alesis D4 and Quadra Verb GT product ids. The product id numbers are 6 and 7, respectively. 4) When a MIDI program change was sent following the insertion of a new disk into the DataDisk (without first pressing any button that would cause the new disk to be loaded), the DataDisk would respond according to the old disk's info. This problem has been fixed in the following manner: Whenever the DataDisk receives a program change, it first checks the disk drive to see whether or not the disk was changed. If the disk was changed, it first loads in the information from this new disk. If the MIDI channels match and the program number is within range, the appropriate file is sent. If the MIDI channels do not match, however, the DataDisk will display the MIDI receive channel page. If the channels match, but the program number is out-ofrange, the DataDisk will display the first info page. The display changes to these pages only if the new disk has not already been loaded. Once a disk has been loaded, a channel mismatch or out-of-range program number will be ignored and will not affect the display. 6/11/91 2.08 Checksum: 7EB4H ( i n t e r n a l ) / 7DE8H ( e x t e r n a l ) 1) When performing a backup of MIDI sequence files between two DataDisks, the receiving unit might sometimes prematurely end a file and then incorrectly indicate it was receiving various manufacturer dumps. This problem occurred depending upon timing information contained in the MIDI sequence file, as it did not occur with all MIDI sequence files. This problem is fixed. 2) Extraneous note-offs were sometimes sent when aborting a MIDI sequence that contained unmatched note-offs. This problem is fixed. 7/30/91

2.09

Checksum: 801DH (internal) / 7EBCH (external)

1) The backup problem is fixed. [Bad backup files - those made with 2.07 and 2.08 version software — would display the sysex error (Bad Data in File) message when sent. Note that the bad backup files are not fixed by this new version of software.]. 11/17/91

2.10

Checksum: 81D7H (internal) / 8131H (external)

1) Playback of some sequence files would sometimes glitch (timing would be off). This would happen on fragmented sequence files, i.e. those which were stored on non-consecutive sectors. The more distance between sectors, the more likely a glitch would occur. This problem is fixed. Work around: Do a single file backup of the file that has this problem. (This will unfragment the file).

10.0 Format History Note, there have been a lot of software updates to this product. The software history should be studied carefully in order to understand how to convert customers "complaints" into solutions. The Datadisk (with software version 2.00 or higher) will record anything that comes in via MIDI (including System Real Time and System Common) except for active sensing and MIDI System Reset (FF). MIDI clock (F8) will be ignored until the unit sees something different than an F8. Then after receiving and recording data other than an F8, it will record F8's. This is to ensure that units that constantly send MIDI clocks like the MPU-401, can be used to record MIDI sequences without starting to record the instant the MIDI cables are connected. The following detail explains the Formatting problem that existed from software version 1.00 to 2.03, that was fixed in 2.04. All versions from 2.04 and above include this "fix". Overview: Data is received into the Datadisk and goes indirectly to the drive and onto the first available sector (track) of the disk. If there is more than 1 track (4 sectors) worth of data, it will then be written to the next available track. (Usually one right next to it.) Most (95%) of SYSEX dumps require the use of only one track or less. If a user has the SQ software (VER 2.00 or higher), they will be putting more than one tracks worth of data onto the disk at a time, or, for 1 file since sequence data for 1 song will most likely be much longer than 1 SYSEX dump. (Unless, of course, their song is very short). There is a certain width of "gap" between each track which is put there when a disk is formatted. When data is being written to the disk and it has filled 1 track, the heads move over to the next available track and continue writing the data from that file which is being received. If necessary, more tracks are utilized until the file is complete. Example: One 760K file would use all tracks on the disk and when sending that file, the heads would move from track to track reading each one, one at a time, and sending it out. PROBLEM: (In 2.03 and lower). When the unit is receiving data and the heads go to move to the next track to continue writing more data of the same file, the heads move a little further than the width of the gap and slightly onto the adjacent track. (This is, of course, not acceptable). If that adjacent track already has data on it, it will be combined with the incoming data and the result will be completely unreadable and invalid data. Upon playback, the heads will not be able to read this invalid data, resulting with the display reading "DISK ERROR". Sometimes the heads will recognize this when they are overwriting a track and give the user a "DISK ERROR" message then. i.e. when receiving a sequence, or long SYSEX data stream. In other words, when this happens, the user will get the error message either when sending or receiving a file, sometimes both, but usually when they are sending. To date, this overwriting problem has only occurred with the Sony "-5" drive and software version 2.00 to 2.03, or the one with the amber colored LED. After thoroughly testing the Sony "-10" (green colored LED) and the Fujitsu (red colored LED) we could never get these to fail where as we had consistent failures with the Sony "-5" (amber colored LED) drive. SOLUTION: In software version 2.04, the only change is that when formatting a disk, there is a larger "gap" width between the tracks. Thorough testing by us and Sony has consistently yielded favorable results. Also, when you hit the INFO button and go to the page that displays the software version, you will see that it says "DISK FORMAT 1," or "DISK FORMAT 2,". This denotes whether the disk was formatted with software version 2.03 or lower (DISK FORMAT 1, the undesirable format), or 2.04 or higher (DISK FORMAT 2, the newer and desirable format). To simply verify whether a disk full of files is good, just go to "SEND ALL FILES?" and press "YES". If no disk errors are detected then you are OK. (A user can do this for every file they just receive to verify it, if they so desire, however, with format 2, this should not be necessary). If any disk errors are detected, those files MUST be deleted as they are bad. Once it is determined that a disk contains all good files, then the user should insert the latest EPROM version, format a disk, then using "BACKUP ALL FILES TO DISK?" backup the old disk to the new one. After verifying that all of the files on the new disk are good, then reformat the old one so that both disks now have the same, new, format. This procedure should be repeated for all disks that a user owns so that this problem will never occur again. Then they should return the old EPROM to you so that you can erase and reuse it, as well as not accidentally use it some other time thus creating the problem all over again. Alesis DataDisk Service Manual 1.00

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09/01/95

26

12.0 Service Parts List || GROUP ASS ASS CAB CAB CAB CAB CAB CAP CAP CAP CAP CAP CAP CAP HDR HDR HDR HDW HOW HOW HDW HDW HOW HDW HDW HDW HDW HDW 1C 1C 1C 1C 1C 1C 1C 1C 1C 1C 1C

IC IC IC

JAC JAC ME ME ME ME ME ME ME ME ME ME MTL MTL MTL MTL MTL PCB PCB PLS PLS PLS PLS PLS PLS RES RES RES RES RES RES RES SOC SOC

DESCRIPTION PCB. DD MAIN ASSY PCB, DD KEYPAD ASSY 14 PIN DILS 0.1 CTR 34 PIN DIL 12 0.1 CTR 12PIN S I L 3 0 1 CTR 12 PIN S I L 7 0 1 CTR 4 PIN SIL 10 0.1 CTR 0 1 MF C E R D I S C 22 PF C E R D I S C 100 MF ELEC 16V 07x12 1000 MF ELEC 16V 10x20 4700 MF ELEC 25V 18x40 4 7 MF ELEC 50V 05x12 0.047 MF FILM 14 PIN DIL 0 1 CTR 34 PIN DIL 90 0 1 CTR 12 PIN SIL 0 1 CTR 6-32x1/4 PP BLK UNC 6-32x1/4 PF BLK UNC BEZEL SCREW M-3 10mm NYLON SPACER 0.095 1/2 STANDOFF6-32 6-32 KEP NUT ANGLE BRACKET F/P SWITCH BOOT CABLE BRACKET RUBBER STRIP 5 7805+ 5V T0220 7812+ 12V T0220 74HC139 74HC573 74HC574 74HC00 QUAD 2-IN NAND 74HCU04 74HCT04 74HC74 32Kx8 PSRAM 27C256EPROM 80C31 6N138 VL1772-02 DISKCONT 5 PIN DIN JACK 4 PIN DIN J A C K ( P 4 ) 1N4148 SIGNAL DIODE 1N4003 POWER DIODE LED (RED) DPDT SWITCH 12MHZ C E R R E S 16MHz C E R R E S DISC DRV MPF11W-10WP 2200 PF FILTER LRG T O R R O I D LCD MODULE SIDE PANEL COVER PANEL REAR PANEL FRONT PANEL BOTTOM PANEL PCB, DD MAIN REVC PCB, DD FRONT PANEL LCD BEZEL (REV B) POWER BUTTON LED BUTTON PLAIN BUTTON SWITCH EXTENDER KEYPAD 1K 1/8W 5% 10K 1/8W 5% 1M 1/8W 5% 220 1/8W 5% 470 1/8W 5% 4 7K 1/8W 5% 560 1/8W 5% 28 PIN DIP 0 6 40 PIN DIP 0 6

AL PARTNO 8-20-0050 8-20-0051 4-18-0814 4-18-1234 4-19-0312 4-19-0712 4-19-1004 1-02-0104 1-02-0220 1-08-0107 1-08-0108 1-09-0478 1-11-0475 1-20-0473 4-14-0014 4-14-0034 4-15-0012 5-00-0003 5-00-0004 5-00-0012 5-00-0017 5-01-0007 5-02-0003 5-02-6320 5-07-0001 9-11-1013 9-13-1012 9-23-1006 2-11-7805 2-11-7812 2-14-0139 2-14-0573 2-14-0574 2-14-7400 2-14-7403 2-14-7405 2-14-7474 2-17-1832 2-19-0256 2-20-8031 2-24-0138 2-29-1772 4-00-0001 4-00-0004 2-00-4148 2-01-4003 3-02-0001 6-02-0001 7-01-0003 7-01-0004 7-10-0001 7-20-0222 7-30-0002 9-44-1111 9-03-1003 9-03-1005 9-03-1031 9-03-1033 9-03-1037 9-40-1026 9-40-1027 9-11-1015 9-11-1016 9-11-1017 9-11-1018 9-11-1019 9-23-1008 0-00-0102 0-00-0103 0-00-0105 0-00-0221 0-00-0471 0-00-0472 0-00-0561 4-06-0028 4-06-0040

QTYPER 1 1

13 4 1 2 3 3 1 1 1 4 24 4 4 4 2 1 5 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 3 3 9 1 1 1 1 5 1 1 2 1 1 1 1 1 1 1 1 9 3 1 1 4 3 1 13 1 1 6 3 1

Alesis DataDisk Service Manual 1.00

POSITION MAIN BOARD ASSEMBLY FRONT PANEL PCB ASSEMBLY

J1 C1,4-8, 10, 15, 19, 21.24.25.27 C2,3,11,12 C18 C22,23 C14,16,20

C9,13, C17 J7 J2 J5,6 CASE FRONT PANEL BEZEL

PCB

MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN

MANUFACT

NOTES

SHOEI SHOEI

07x12mm 10x20mm 18x40mm 05x12mm

MAIN

U14 U13 U7 U10 U4 U12 U6 U2 U5 U9 U8 U11 U1 U3 J3,4 J8 D1-3 D4-6 FRONT PANEL PCB SW1 Z2 Z1

MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN F/P MAIN MAIN MAIN

L1-5 L6

MAIN MAIN

R3-6 R24,27,28 R7 R2,8-18,20 R1 R29 R19,21-23,25,26 U3,8,9 U11

MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN MAIN

NAT ONLY-NO SUBS NAT ONLY - NO SUBS Tl ONLY - NO NAT NAT/TI NAT/TI NAT/TI NAT/TI NAT/TI NAT/TI TOSH NAT SIG HP VLSI

SONY

25

09/01/95

INDEX +

DR1,6

L

+ 12V, 1, 2

DRM-1, 10

L6,1,25

+ 5V, 1, 2, 3

DRQ,2

LCD, 1, 2, 25

DRV-2000, 10

LCD contrast, 1

DS-8, 10

LEDs,2, 5, 6, 15

DSM-1, 10

Lexicon, 11

12MHz, 1

DSP128,6

LM850, 6

3

DSP128+, 7

LXP-1, 11

-12V, 1 1

360 SYSTEMS, 5

7 7 0 7 , 9, 14, 15, 18

8 8031, 1, 25 8MHz, 2

A A3, 9 adapter, 1 ADD One, 7 ADS / ADS-K, / ADD Two, 7 ALESIS.iii, 1, 5, 18, 19, 21 ART, 6 Audio Matrix, 5

B bias voltage, 1

c C14, 1, 25 C15, 1 C16,1 C17,1,25 C18-C19, 1 C22, 1, 25

DSP256, 7

M

D X , 11

M1/M1R, 10

DX- 7 with E!, 15

Matrix-1000, 12

DX100, 16

Matrix-12, 12

DX7 Special Edition, 15

Matrix-6, 12

DX7II, 16

MEQ14,7

Dvnacord, 7

MEQ 28, 7

E

MEQ 7, 7

E-MU Systems, 7

MicroWave, 15

edit buffer, 4, 6, 8, 12, 13, 14, 16 EIII,7

MIDI, ii, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23

Emax, 7

MIDI Patcher, 5

Ensoniq, 8

MidiVerb III, 5

ESQ-1, 8

MixMate, 8

ESQ-M, 8

MKS-50, 14 MKS-70, 14

F FaderMaster, 8

MMT-8, 5 M0.2

Fujitsu, 2, 23

MPU,\1, 23

G

MR, 2

GM-70, 13, 14

MRC, 11

GPS5,7

MSB+, 8

H

MV.6

HR-16/HR-16B.5

MX-8, 6

C23,1 CAE,6

I/O, 1

channel, 4, 5, 6, 8, 20, 21

IEQ-15, 6

CLK,2

IEQ-31, 6

CS, 2

INTRQ, 2

D D-50, 13

Oberheim, 11 P P3, 1, 11

IP, 2

PCM70, 11

IPS 33, 7

DO-D7, 2

J

D4, 1, 2 1 , 25

J8,1,25

D5.1

JL Cooper, 8

DataDisk, ii, 1, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20, 21, 23

Juno-1 /Juno-2, 14

DDD-1, 9

JX-8P, 14

Perf/x, 13 power supply, iv, 1 PPS-100, 8, 9 Proteus, 7 Pseudo SRAM, 1

JX-10, 14

DDD-5, 10

K

Digital Music Corp. 6

K1,9

Digitech, 6

K5/K5m, 9, 18

DIRC, 2

KAWAI, 9, 18

DMX, 11

keypad, 1,25

DPX-1, 11

0 OB-8, 12

Q QuadraVerb/QuadraVerb GT, 5

R R-100, 10 R-8, 4, 14 R/W,2 RAM, 2, 12, 19

Korg, 9

RD, 2

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Roland, 13, 18

TRK0,2

Waldorf Electronics, 15

ROM. 2

TX7, 16

WD, 2

RXD,1

TX802, 16

WD1772, 1

S

TX81Z, 16

WG, 2

S-50/S550, 14

TXD,1

WPRT, 2

U

X

screw footprint, 2

U110,15

Xpander, 13

S1, 1 Sony, 2, 23, 25

U13, 1, 25

Y

sys-ex, 3

U18,1

Yamaha, 15

System exclusive, 1, 4, 9, 10, 13, 14, 15

U6,1,25

T

U9, 1, 25

Z 2 , 1, 25

TR707/727, 14

W

Z3, 11

Alesis DataDisk Service Manual 1.00

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