Lg Plasma Tv Full Training Manual

PDP(Plasma Display Panel ) Display

1. What is Plasma? 2. What is Plasma Display Panel(PDP)? 3. LG PDP Display(MNT & STB) 4. SVC Precaution 5. One Point SVC Guide

LG Electronics DND Division

1. What is Plasma? Plasma ? Plasma is by far the most common form of matter. Plasma in the stars and in the tenuous space between them makes up over 99% of the visible universe and perhaps most of that which is not visible. Plasma consists of a collection of free-moving electrons and ions - atoms that have lost electrons. Energy is needed to strip electrons from atoms to make plasma. The energy can be of various origins:thermal, electrical, or light (ultraviolet light or intense visible light from a laser). With insufficient sustaining power, plasmas recombine into neutral gas.

Solid ⇒ Liquid ⇒ Gas ⇒ Ion, Electron : The 4th State of Matter ▶ Plasma can be accelerated and steered by electric and magnetic fields which allows it to be controlled and applied. Plasma research is yielding a greater understanding of the universe. It also provides many practical uses: new manufacturing techniques, consumer products, and the prospect of abundant energy.

Ex.) Lightning, Aurora, Nebula, Flames, Neon Sign, Solar core …. TOP in Digital

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Plasma ?

Plasma -The 4th State of Matter

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2. What is Plasma Display Panel(PDP)?

(1) How does it work? (2) The Structure and mechanism of PDP (3) Flow chart of a PDP fabrication (4) Advantage of PDP Display (5) Comparison of Display Devices (6) Display Product Segments (7) Usage of PDP Display

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2.What is Plasma Display Panel(PDP)?

(1) How does it work?

Plasma display panel is the latest display technology and the best way to achieve flat panel displays with excellent image quality and large screen size that is easily viewable in any environment. PDP is an array of cells, known as pixels, which are composed of 3 sub-pixels, corresponding to the colors Red, Green and Blue. Gas in a plasma state is used to react with phosphors in each sub-pixel to produce colored light (red, green or blue). These phosphors are the same types used in Cathode Ray Tube(CRT) devices such as televisions and standard computer monitors. You get the rich, dynamic colors that you expect. Each sub-pixel is individually controlled by advanced electronics to produce over 16 million different colors. All of this means that you get perfect images that are easily viewable in a display that is less than 6 inches thick. Sustain(Z) Electrode Scan(Y) Electrode Gas Discharge

YUV Generate (MgO)

Visible Illuminate

Display

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(2) The structure and mechanism of Panel

< Upper Panel >

< Lower Panel >

ITO

Barrier Rib

Electrode

BUS

Electrode

W/B Dielectric

(MgO) Protection

Fluorescent

Electrode

Visible Light ITO Electrode

Fluorescent (R,G,B)

Bus Electrode

Plasma UV light

Address Electrode TOP in Digital

Barrier Rib

6

Glass

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(3) Flow chart of a PDP fabrication Rear Glass

Front Glass

Address Electrode

Sustain Electrode (ITO)

Dielectric Layer (Ag,Cu, Au)

Bus Electrode

(Ag, Cu) (PbO)

White Back (Screen Printing)

Dielectric Layer (PbO)

Barrier Lib (130㎛ ㎛) (Sand Blasting)

Protection Layer (MgO)

Phosphor layer (R, G, B)

Sealing Exhausting & Filling Gas

(Xe+He/Ne/Ar)

Aging PDP Panel

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(4) Advantages of PDP Display

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(5) Comparison of Display devices

Rear Projection

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(6) Display Market Segments

PDA/Car Nav. Potable TV

Notebook PC

Public Screen

PC Monitor / TV

Jumbo Screen

FED PDP CRT

EL

Projector Projection (Rear CRT/LCD)

LCD

10”

20”

30”

40”

50”

60”

70”

* FED : Field Emission Display ** EL : Organic Electro Luminescent Diode TOP in Digital

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(7) Usage of PDP Display => Home Theatre, A digital “poster” for the showroom, Visual guide or digital art display, Information display in reception areas, Business presentations, Easy-to-see monitor for fitness club

Home Theatre

Information Board

Conference Room

Commercial Shop

Public Display

Sports Center

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3. LG PDP Display(TV & MNT)

(1) PDP Display System Structure(1)

Interface between MP-40PA10 PDP Monitor and other AV machines MN-40PA10 & RN-BA10(Korea/USA)

RGB-PC input(VGA,SVGA) RGB-DTV(480P/720P/1080i)

External Input (Right-Audio Left-Video

Audio Input Right - Left RGB-PC/DTV

Y, PB, PR

COMPONENT ( 480i /480P/720P/1080i ) DVD / DTV INPUT

Component Audio

Composite Video (Input output)

DVD ( 480i / 480P )

Set Top Box ( HD STB )

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MN-40PA10 ＋ RN-BA10(Analog STB)

MN-40PA10 (PDP) connection

RGB-PC input (VGA, SVGA)

PC

RGB-DTV input (480P/720P/1080i) RGB INPUT/CONTROL Audio OUTPUT Right/Left 25Pin D-Sub.

RGB-PC / DTV output

COMPONENT 2 ( 480P/720P 1080i )

Set Top Box ( HD STB )

DVD/DTV INPUT Output (Right-Audio,Left-Video)

S Video input

ANT IN

Component 1 ( 480i input )

DVD

input1,2 (R-voice, L-image)

VCR

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(2) Accessories(Option Items)

Wall Mount(Fix) (AP-40WA10)

Wall Mount(Tilt)(AP-40WA20M)

Desk Top Stand(AP-40DA10)

Floor Stand(AP-40FA10) Floor Stand(Moving)(AP-40FA20M) SPEAKER(AP-40SA10) * There are Ceiling, Pole & Rack type as well as Above accessories(Refer to Catalogue) TOP in Digital

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Description

PLASMA Monitor

Desktop Stand

Wall Mounting Bracket

Tilt Wall Mounting Bracket

Floor Type Stand

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Model Name

MN-40PA10

Description

Model Name

Ceiling Mounting Bracket

AP-40CA10

Speaker

AP-40SA10

Speaker Stand

AP-40SA10D

Floor Type Speaker Stand

AP-40SA10F

PDP Tuner

RN-BA10

AP-40DA10

AP-40WA10

AP-40WA20M

AP-40FA10

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(3) External Connection Terminals

Terminal

Cord Length

RGB IN/Control

3000 mm

External SPK

5000 mm

AC Input

2500 mm

(+) R (-) (+) L (-)

1.40”/42”

2. 60”

R A L

Ext. SPK(8Ω)

Video

External Input

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Y

Cb/Pb Cr/Pr

DVD In/DTV In2

R

L

PC In/DTV In 1 (RGB/HV)

RGB In/Control

Audio IN

PC In/DTV In 1 (RGB/HV)

R A L Video External Input

R

L

Audio Input

16

RGB In/Control

S Video

Y

Cb/Pb Cr/Pr

AC Input

DVD In/DTV In 2

(+) R (-) (+)L (-)

AC Input

Ext. SPK(8Ω)

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(4) Fixing Points 4-1)MP-40PA10(40” PDP) Wall Mount Fixing Points

- Fixing Points : Fix with M5 screws (★ ★3,4,5,6,7,8 ; 6 points) - SPK Fixing Points : Fix with 3 tapping screws (★ ★1,2,9,10 (2 points each); 8 Points)

★9

★1 ★6

★3

★4

★7

★5

★8

★2

★10

D/T,F/S Fixing Points

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4-2)MN-60PZ10(60” PDP)

Pre-Fixing Point

★7

★12

- Fix with M8 Screw - Total 16 fixing points (★ ; Wall Mount Holder or FLOOR STAND Fixing) - ★1,★3 ★4,★6 : For SPK

★4

★1

Fixing Points ★13

★8

★2

★5 ★9

★14

★10

★15

★3

★6

★16

★11

D/T,F/S Fixing Points

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(5) EXPLODE VIEW 5-1)MONITOR PART 9 8 7 10 6 5 4 3 2

NO.

NAME

Part Number

1

Cabinet

3091V00288C

2

Filter

3790V00266B

3

Supporter,Filter

4

Module Assy

6348Q-A002A

5

Line Filter

3501V00028A

6

PCB ASSY, VSC

6871VMM602B

7

PCB ASSY, POWER

3501V00027E

8

Supporter,Vertical

4980V00164B/C

9

Back Cover Assy

3809V00212C

Plate, Rear A/V

3301V00005A

10 1 TOP in Digital

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5-2)SET TOP BOX ASSY

5

4 3 NO.

1 TOP in Digital

NAME

Material

Part Number

1

Panel,Control

ABS

3720V00080B

2

Panel, Front

HIPS

3720V00079A

3

Case, Bottom

SECC 1.0t

3110V00101B

4

Case, Rear

SECC 1.0t

3110V00111C

5

Case, Top

SECC 1.0t

3110V00102A

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5-3) PSU & VSC Board

PSU (Power Supply Unit)

VSC (Video Scan Converter)

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(6) Inter-Connection Guide

6p

4p

CON302

PDP MODULE (Upper X-Board)

6p

CON301

Z-Board (Sustain)

8p

CON3 CON2

Y-Board (Scan)

8P CON300 PDP Control 40P Board 12P CON102

8P CON102 12P CON101

CON100 CON304

PDP MODULE (Lower X-Board)

6p

6p

CON303

P801 P802

POWER SW.B/D Local Key Board Local Key Board

7P P004A

7p

P003A

6P P002A

VSC

P006A P007A 4P

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4P 4P P007A

4p

8p

P802 P803

6P P814

6P P812 6P P811

6P P813 4P P810

40P PD501

SPEAKER

8P P801

8P P807

POWER

12P P005A

12P P809

7P

7P P815 2P CN801

P003A

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2P

EMI pack

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(7) Block Diagram DATA ( 41PIN ) R/L

PDP Module

RGB(24bit)

(Spk.)

Video V/R/L Scan Converter DVD & Audio Amp. Ext. I/F PC

(VSC) Control & RGB/HV, RL(25pin)

VSYNC HSYNC BLANK

Image Processing Logic & ScanController

DISPEN

(Control)

+5V ST 5V +9V +32V

+5Vcntl

ANT

V/R/L DVD

VS(180V)

+5V

VA(80V)

+15V

(Z)

(Y)

+5V +15V

V set-up (275V) VSb(75V) +5V

+5vdrv

ADDRESS DRIVER (X)

+15vdrv

+15V

VA

STB Power AC Input TOP in Digital

SCAN SUSTAIN DRIVER

PANEL 640XR,G,BX480

VS VSetup

PC/DTV

COMMON SUSTAIN DRIVER

Vsb

DTV

Power Supply (AC-DC, DC-DC)

+15V

VA

ADDRESS DRIVER (X)

VS

PC

TD-620 Set Top Box

+5V

EMI Filter

AC Input

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MP--40PA10 VSC Board STB-POWER VSC DET/POWER HDSTB_DET STB_SCL/SDA ANA_STB_DET

DS101 D-sub 25

D-sub DS102

3 1 CVBS (A) Y,Cb,Cr 3

A0-10 11 16

IC401 IC401 MX88L284 MX88L284 3X2M 3X2M Scan Scanconverter converter 208Pin 208Pin

IC403 16 2M

I²C Bus

(A)

IC502

8

3X8

2

8 DOR0-7 PD501 (41Pin) 8 DOG0-7 IC503

8

74F541 Buffer PAG0-7

8 DOB0-7 8

(R/G/B)(D)

IC504 PAB0-7

IC204 IC204 SDA9410 SDA9410 De-interlace De-interlace & & D/A D/A 100Pin 100Pin

IC203 IC203 VPC3230 VPC3230 Decoder Decoder 80Pin 80Pin

CAX-HS/VS

D16-31

74F541 PAR0-7

D0-16

TV-Y/U/ V/HVs (A) 4

2

PVS/PHS_OUT

SDRAM

8

IC501

IC402 2M SDRAM

PC-R/G/B/HS/VS (A)

15

2

OSD_R/G/B/YS

Display Processor & Scan Rate Converter (Format Converter) Converts Interlace into Progressive 15KHz 31KHz(2H, 1V)

5 DTV-Y/Pb/Pr (A)

HS/VS_OUT

74F541

IC001 IC001 M37270 M37270 EEPROM EEPROM µ-Com µ-Com

5

P101 V/R/L

2 4

7

STB-R/G/B/HS/VS(A) P601 L/R

OSD_HS/VS

IC002 24C08

IC303 IC303 CXA2101AQ CXA2101AQ Video&Chroma Video&Chroma

80Pin 80Pin

74F541

IC304 IC304 THS8083 THS8083 100Pin 100Pin

Chip for flat panel display application VGA XGA(scale up/down)

CHR0-7

PDP Module

(D) 8 LU0-7

P102 DVD

Comb Filter & Video Processor Separates CVBS signal into Y,U &V AV/DVD/DTV2 STB/PC/DTV1

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3 CXA-R/G/B(A ) Multi-Component Processor (Baseband Video Signal Processor) Outputs Analog R,G & B signal from STB,PC,DTV & TV signal

IC604 LA7222 (Audio S/W)

IC602 IC602 CXA2022S CXA2022S (Tone (ToneControl) Control)

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Triple 8Bit, 80MSPS, 3.3V Video&Graphic Digitizer with Digital PLL Generates D-R/G/B(24bit) signal from Analog RGB

IC603 IC603 LA4282 LA4282 Audio Audio Amp. Amp. (12Wx2) (12Wx2)

Lout Rout

P007A (SPK. Jack : 8Ω) 10x10Wrms

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VSC Board Block

PC-R/G/B/HS/VS Y/Pb/Pr ( 480 p )

3X8 ( R/G/B ) ( D )

TV-Y/U/V/HS/VS CVBS IC203 IC203 VPC3230 VPC3230 Decoder Decoder 80 80 Pin Pin Y,Cb,Cr ( 480 i )

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IC204 IC204 SDA9410 SDA9410 De-interlace De-interlace && D/A D/A 100 100Pin Pin LUM0-7 CHR0-7 LLC1/2

IC303 IC303 CXA2101AQ CXA2101AQ Video Video && Chroma Chroma 80 80 Pin Pin

IC304 IC304 THS8083 THS8083 100 100Pin Pin

IC401 IC401 MX88L284 MX88L284 3X2M 3X2M Scan Scan Converter Converter 208 208Pin Pin

PD501 PD501 (41Pin) (41Pin)

Heat-Run pattern. Outputs Blue/Red/ Green/White Pattern with 225 steps

PDP Module

3 CXA-R/G/B

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42”/60” New VSC Board MONOSTABLE MULTIBIB. (74LS123) RGBHV 5

MEMORY (6M-BYTE)

CLAMP_AD

SOG_OUT

8bit 135Mhz ADC(3), PLL(3), PIP,Gamma, High order 3’rd generation Scaling

RGB 3

VIDEO SWITCH (M52758FP)

RGBHV 5

A/D CONVERTER H

3

SCALER

PLLH/CLK 2

(CXA3516R)

TMDS TX 4

(JAG200)

H/V SOG Y/C

H/V/DE/CLK

8

21P

(SII150)

V H RGB 3

CVBS

DISP_EN

H/V 2 YCbCr/ YPbPr

COLOR DECODER (VPC3230D)

H/V/ FIELD/ LLC1 4

2 YUV

Comb Filter Video Processor high quality video front -end, which is targeted for 4:3 for 16:9, 50/60 & 100/120Hz TV sets, color decoder PAL/NTSC/SECAM PIP processing

Digital Component Video De-Interlacer/Line Doubler

5 RGBHV H

DEINTER -LACER (FLI2200)

MEMORY (4M-BYTE)

Digital Video Enhancer (FLI2220)

H/V 2

V

H/V/CLK/ HBLK/VBLK

Y,U,V,H,V

5

COLOR CONTROL & VIDEO SWITCH (CXA2101Q)

Y,Pb,Pr(MNT) 3 Y,Pb,Pr(STB) 3

AUDIO R

L

AUDIO AMP LA4282 (L & R)

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PORT EXP (M62320X4)

(74HCT373)

MICOM

AUDIO SWITCH (LA7222)

ROM (AT29C010)

EPLD

5 Clamp

(GEN. CLAMP)

Multi-Component Processor (Baseband Video Signal Processor) bipolar IC which integrates baseband signal processing, RGB signal processing and 4 video switching systems (including HV sync signal processing) using YCbCr inputs developed for multi -scan TV & configuring high-end TV systems

EEPROM X2416P

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Power Supply Unit (40”)

Vsc TRANS

B Vsetup TRANS

CEMENT 저항

VR 2 806 Vsc

CEMENT

CEMENT

VR 3 805 CEMENT Vset

Vs TRANS

I

Drive

D

Va Inductor

Vs INDUCTOR TRANS

4 VR CEMENT 804 Vs Vs

C 5V Inductor

HEAT SINK

E 1

H HEAT SINK

HEAT SINK

A

Multi Inductor

VR803 (Va)

HEAT SINK

VR802 (5V Adj.)

MULTITRANS

VR801 (32V Adj.)

F

VR802 : Va adjust(typ.70± ±5V) VR804 : Vs adjust(typ.180± ±5V) VR805 : Vsetup adjust(typ.275V) VR806 : Vsc adjust(typ.75V)

Multi Drive

ST-BY TRANS

CEMENT

HEAT SINK

HEAT SINK

HEAT SINK

J G

TRANS PFC Inductor

AC In

EMI(Line Filter) Pack TOP in Digital

A: Vsc(75V)Trans B: Vsetup(275V) Trans C: Va Inductor Trans D: 5V Inductor Trans E: Multi Inductor Trans F: Multi(5V/15V/12V/30V/Va)Trans G: St-By(5V/15V)Trans H: Vs Inductor Trans I : Vs(180V)Trans J: PFC Inductor Trans

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EMI

Power Switch

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POWER BLOCK

AC Input 90Vac~265Vac Rectifier DIODE

ST-BY

5V

STR-G6100

15V

Relay

380V PFC MC33262

5V Forward Type TL494

15V 12V 30V

Rectifier DIODE RCC Type TL494

Va 75V

Half-Bridge Type TL494

Vs 180V

RCC Type TL494

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VSC 75V Vsetup 275V

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(8) Basic Structure of Optical Filter(Screen Filter)

AR(Antireflection) Film PET Film with Multilayer sputter-coatings

Adhesive layer

Multilayer sputter-coating for EMI shielding & NIR (Near Infrared Light)blocking

Tempered Glass Colored adhesive layer

Adhesive layer AR(Antireflection) Film

Frame Printings(Screen Size)

Electrode(Bus Bar)

* EMI shielding : Mesh Fiber type & Film coating Type

Features of Optical Filter -. Reduce Electromagnetic Radiation and NIR(Near infrared light) emission. : EMI regulation(FCC A-class for Industry use, B-class for consumer use) -.Transparency Control(40 ~ 70%), ex) FCC -A(sheet resistance = 2.5~3.5W) @ 60% , FCC -B(sheet resistance = 1.1~1.5W) @ 45% -.Color Control : Color Temperature & Color Reproducibility control -.Reduce Surface Reflection -.Enhancement of Contrast -.Protection of PDP panel Best LGDigital with Best Technology TOP in

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(9) PDP Tuner(Set Top Box)

SMPS Board

RT-BA10(N-EU Multi) RZ-BA10(EU Multi) RN-BA10(NTSC) RP-BA10(Latin America)

Interface Board

Top View

Back Panel(Signal Input) Main Board

Inside

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(10) RT-BA10( STB ) Inter-Connection

STB-CONTROL B/D

12P PF01

P00112 P

Power Switch

STB - MAIN P403 Tuner

P00210P

P402

P401

12P

10P

10P P810S

STB - POWER

7P P003

8P 8P P870S

12P PX002

10P

7P

PX001

PX003

STB Interface B/D

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(11) STB Block Diagram(1) Comb filter video processor TV신호를 Digital Y/Cr/Cb化 Multi-standard color decoder A/D converter

TV Audio(SIF) TUNER TUNER

DVD in

8 IC IC IC701 701 IC301 301 CHROMA0-7 LGTV1001 VPC3230 LGTV1001 VPC3230 8 64pin 80pin 64pin 80pin LUMA0-7

3

(Y,Cb,Cr)

1

Y/U/V 2

DCF-VIN

(R,L) A/V 1

3 SDA Y/V/U

DCF(3D) DCF(3D) (Digital (DigitalComb CombFilter) Filter)

TV Signal (CVBS)

2

Y/C

TV-L/R

3 (VRL) DCF-C/Y IC IC201 201 CXA2069Q CXA2069Q 64pin 64pin

SVHS

A/V 2

KIN IC IC602/3/4 602/3/4 SRS SRSblock block (option) (option)

DTV2 (R,L)

3

KOUT 3

PC IN

(Woofer Spk. Jack : 8Ω) 15Wrms

MNT-L/R/V

2

(R,L) (Y,Pb,Pr)

DTV RGB/HV

SCL-A SDL-A 2

SCL-A SDL-A

2 PC-HS/VS

5

Interface Board

DTV 1 IN

P003 P003

W/F-OUT OUT-L OUT-R

3 SCL_A, SDA_B PC/DTV

IC IC001 001 M37272 M37272 u-COM u-COM

7input/3output Single chip multi-standard wideband video Amp(20MHz, -3dB) Sound processors(Dolby Virtual) Y/C mix circuit 전체적인 TV음성신호 처리 A/V switch featuring I2C BUS Mono/Stereo/Bilingual DTV2 in

1 S-MUTE

8 Y0-7

PC R/G/B HS/VS ICX ICX001 001 BA7657F BA7657F

DTV R/G/B HS/VS

P401

5 DTV-R/G/B HS/VS

PC Audio(Stereo) PC/DTV-OUT

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1 IC IC402 402 BA7657 BA7657 24pin 24pin

CXA-PC 5 R/G/B/HS/VS

PC-R/G/B 2 CXA HS/VS

Multi-Component Processor Analog R/G/B 출력 P403

CXA R/G/B

3

P402

PC RGB/HV PC DTV PC-R/L

3

SDA-HS/VS/U/V/Y IC IC401 401 3 CXA2101AQ CXA2101AQ (DTV 2)Y/U/V 80pin 80pin

IS 501 (25Pin Cable)

PDP MODUAL

3

SDA-U/V/Y

3

KEY-1

IC IC601 601 MSP3401 MSP3401 80pin 80pin

3 (VRL)

MNT OUT

2 AV-L/R

2 IC IC302 302 SDA- SDA9410 SDA9410 HS/VS 100pin 100pin 8 C0-7

3 OSD R/G/B/YS

2 2(Y/C)

Format converter Interlace scanning to Progressive scanning

8bit UVin 8bit UVout 8bit Yin 8bit Yout Improve the Image

R/L CXA2069Q (pin 23/25)

R/G/B Y/U/V

Input select switch for high definition display Internal broadband RGB s/w

R/G/B化

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(12) Function Descriptions

Parts Y-Board ( Scan Driver )

Function Connected to Scan(Y) electrode and FPC to operate Scan and Sustain

Z-Board(Common Sustain Driver) Connected to Sustain(Z) electrode and FPC to operate Sustain X-Board ( Address Driver )

Connected to lower address(X) electrode and FPC to operate Address

Control Board

Generates and distributes display data and driver timing of Video and Audio signal from external input to X,Y,Z Board.

DC/DC-2 Board

With input voltages-Vs,Va,Vcc, converts into Circuit login voltage(5V), Va,Vsc,Vs & Vsetup and distributes to X,Y,Z Board.

FPC(Flexible Plate Circuit) ACF (Asymmetric Conductive Fundamental)

Heat Sink

COF ( Chip On Film )

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Connect line to line with PCB and pattern of Panel Charged material between Panel and FPC. Used for heat pressing material to connect FPC and pattern of Panel(Glass) and constituted by conductive metal(Ni,Au,etc) and thermosetting high polymer organism powder.

Electrical parts are attached to absorb and radiate heat generated at Panel when operating.

Unifying IC chip on the PCB and FPC, and it realizes simplified structure and miniaturization.

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(13) Definition of Defect A. Definition Item

Definition

Dark Dot

Cause

Non lighting Cell Defect

Flashing Cell Defect

Toggles On/Off

Non-extinguishing Cell Defect

Turn on always

Foreign material at Cell or structural defect

Brighter than other cell at same color or display other color

High Intensity Cell Defect

B. Specification A zone

B zone

Dark Dot

N 2 [cell/scn] ≤ Neighboring 2 Cells ≤ 1 Neighboring over 3 Cells : 0

N 4 [cell/scn] ≤ Neighboring 2 Cells ≤ 1 Neighboring over 3 Cells : 0

Bright Dot

N 2 [cell/scn] ≤ Neighboring 2 Cells ≤ 1 Neighboring over 3 Cells : 0

N 4 [cell/scn] ≤ Neighboring 2 Cells ≤ 1 Neighboring over 3 Cells : 0

Flashing Dot

N 2 [cell/scn] ≤ Neighboring 2 Cells ≤ 1 Neighboring over 3 Cells : 0

N 4 [cell/scn] ≤ Neighboring 2 Cells ≤ 1 Neighboring over 3 Cells : 0

High Intensity Dot

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N

≤

0 [cell/scn]

N

34

≤

0 [cell/scn]

LG Electronics

SVC Precaution Lift up the right and left of X-BOARD CONNECTOR.

1) X - Board COF Connector separation Lift up X-BOARD CONNECTOR and separate COP CONNECTOR by pulling up.

When you handle COF CONNECTOR, don’t pressure. First release LOCK and separate. If COF CONNECTOR is damaged, you should replace MODULE ASS’Y. So, be aware of this!!

COF Connector

Warning Warning When When you you exchange exchangeX-Board, X-Board, first first you you should should separate separate COF COF Connector. Be careful to handle it. Connector. Be careful to handle it. COF COF Connector Connector is isattached attached to to Module. Module. When When COF COF Connector Connector is is broken, Module ASS’Y must be replaced a new one. broken, Module ASS’Y must be replaced a new one.

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2) X - Board Connector separation

Lift up each edge of left/right.

Lifted condition Be careful to handle LOCK or it can be broken. When LOCK is broken, replace a new X-BOARD.

Warning Warning It’s easy to separate it by releasing Connector Lock . Do not pressure or it can be hurt. When LOCK is hurt, replace a new X-BOARD

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LG Electronics

3) Y - Board COF Connector separation

Pull the white LOCK as shown in arrow

Pull the white LOCK as shown in arrow.

Separate COF CONNECTOR by pulling in the left.

Warning Warning Be careful to handle LOCK and COF Connector. When LOCK part is damaged, you should replace a new Y-Board. In case of COF Connector, Module Assembly.

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LG Electronics

4) Z - Board COF Connector separation

Separate the fixed Screw of Z-Board. Pull out Lock as shown in arrow.

Condition in Lock part is pulled

COF Connector

Warning Warning Be careful not to tear COF Connector. If COF Connector is torn, replace a new Module Assembly

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Pull COF Connector as shown in arrow. It’s easy to separate COF on condition that Z-Board Screw is separated. In case Z-Board is assembled, it’s really hard to separate.

LG Electronics

5) Connector separation Guide Push LOCK and pull out

PUSH

PUSH

PUSH

PUSH

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PUSH

39

PULL

LG Electronics

6) Control Board & VSC Board Connector

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40

LG Electronics

7) Gas injection (Sealing up) condition

Be sealed up after gas injection

Be sealed up after gas injection

Warning Warning

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Be careful to handle the sealed-up part after gas injection. If it is broken, the gas escapes. So, replace the Module.

41

LG Electronics

One Point SVC Guide

Power off in 2 ~ 3 minutes(Protection)

Power PowerisisOn Onand andoff off2~3 2~3minutes. minutes. (Protection) (Protection) P301 P301Connector ConnectorOpen Open Check. Check.

OK

XX--Board BoardTop TopRight Right Change. Change. OK

P302 P302Connector ConnectorOpen Open Check Check

XX--Board BoardTop TopLeft Left Change. Change. OK

P303 P303Connector ConnectorOpen Open Check Check

P304 P304Connector ConnectorOpen Open Check Check

XX--Board BoardBottom BottomRight Right Change. Change. OK

P102 P102Connector ConnectorOpen Open Check Check

P3, P3,P2 P2Connector ConnectorOpen Open Check Check

XX--Board BoardBottom BottomLeft Left Change. Change. OK

ZZ--Board Board Change. Change. OK

P005, P005,P003 P003Connector ConnectorOpen Open Check Check PROTECT PROTECT operation; operation;

P006 P006Connector ConnectorOpen Open Check Check

When When the the load load voltage voltage is is short. short. When When each each voltage voltage doesn’t doesn’t work work (in (in general) general)

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YY--Board Board Change. Change.

OK

VSCVSC-Board Board Change. Change. OK

VSC VSC--Board Board Change. Change. Sound Output IC Short Sound Output IC ShortCheck Check

Power Power Board Board Change Change

42

LG Electronics

Power off in 2 ~ 3 minutes(Protection)

L813 Cold Solder

Symptom : As soon as the power on, it’s off in 2 - 3minutes. (PROTECT operation) Cause : No VS voltage L813 Coil cold soldering.

Check Check Open the Connector connecting to each Board to check the power is off. if each Board is same, check the Power Board and voltage.

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LG Electronics

ADD BAR inspection and repair

Press the ADJ KEY and check the position of add bar by changing WHITE or RED or BLUE or GREEN

HEATRUN : WHITE

Top Right

Bottom Right

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Top Left

Bottom Left

MP-40PA10 uses 4 board such as left,right, top and bottom. Divide the screen in 4 and once you see ADD BAR check COF CONNECTOR between MODULE and X-BOARD. If there is no defect in COF CONNECTOR replace X-BOARD. But the problem still remains and check the connector between X-BOARD and CONTROL BOARD. And if you can’t find defect, check CONTROL.

44

LG Electronics

Symptom : B color 1 Address line Open Cause : Dented COF

COF is dented

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LG Electronics

Symptom : Inferior R Address color Cause : Inferior DATA output by cold soldering 16 pin of IC14 in X-L-TOP ( Normal waveform after tearing off IC Pin) Countermeasure : Replace X-L-TOP board.

IC14

Cold Soldering

Abnormal waveform by cold soldering Normal waveform after tearing off IC pin

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LG Electronics

Symptom

Causes

If 15V line voltage reduces below 14V, Mis-discharge occurs and power off because of protection circuit.

Countermeasure

Replace PSU (Power Supply Unit) and defective X-Board.

Defective X-Board

The blue spreads on the screen (Mis-discharge) and power off in 2 ~ 3 seconds. If you turn on again, it will be same problem.

Check Check If when Power on, screen shows like above and turn off in 2 seconds, check if turning off or not by disconnecting all X & Y boards.

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LG Electronics

Symptom

Cause

No 5V supply to Top right X-Board.

Countermeasure

Connect 5V line

The top left part of screen is broken (Top Right X-BOARD)

Check Check Check Top right X-BOARD 5V.(If 0V, it happens) Check 5V line from SMPS to X-BOARD.

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LG Electronics

Cause

Symptom

No Va(70V) supply to Top right X-Board.

Countermeasure

Connect 70V line

Pinkish screen in the top left. (Top right X-BOARD)

Check Check Check Top right X-BOARD Va(70V).(If 0V, it happens) Check 70V(Va) line from SMPS to X-BOARD.

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LG Electronics

Symptom

Cause

Countermeasure

No 12V supply to Top right X-Board.

Connect 12V line

No Va(70V) supply to Top right X-Board.

Connect 70V line

The 3/5 top left in the screen is blank (Top Right X-BOARD) Check Check Check Top right X-BOARD 12V.( If 0V, it happens ) Check Top right X-BOARD Va(70V).(If 0V, it happens) Check 12V & 70V(Va) line from SMPS to X-BOARD.

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LG Electronics

Cause

Symptom

Countermeasure

No 12V supply to Top left X-Board.

Connect 12V line

No Va(70V) supply to Top left X-Board.

Connect 70V line

The 3/5 top right of the screen is blank. (Top left X-BOARD)

Check Check Check Top left X-BOARD 12V.( If 0V, it happens ) Check Top left X-BOARD Va(70V).(If 0V, it happens) Check 12V & Va(70V) line from SMPS to X-BOARD.

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51

LG Electronics

Cause

Countermeasure

P1 COF connector on Top left X-Board is open.

Reassemble it

Symptom

Pinkish screen in the 1/5 top right (Top left X-BOARD)

Check Check Check the contact point and Locking of P1 on Top left X-BOARD.

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52

LG Electronics

Symptom

Cause

No 5V supply to bottom right X-Board.

Countermeasure

Connect 5V line

The 3/5 bottom left of screen is broken. (BOTTOM RIGHT X-BOARD)

Check Check Check Bottom right X-BOARD 5V.( If 0V, it happens ) Check 5V line from SMPS to X-BOARD.

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LG Electronics

Cause

Symptom

No 12V supply to bottom right X-Board.

Countermeasure

Connect 12V line

No Va(70V) supply to bottom right X-Board.

The 3/5 bottom left of the screen is Blank. (Bottom Right X-BOARD)

Check Check Check Bottom right X-BOARD 12V.( If 0V, it happens ) Check 12V line from SMPS to X-BOARD.

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54

LG Electronics

Symptom

Cause

No 5V supply to bottom left X-Board.

Countermeasure

Connect 5V line

The 2/5 right of the screen is broken. (Bottom left X-BOARD)

Check Check Check Bottom left X-BOARD 5V.( If 0V, it happens ) Check 5V line from SMPS to X-BOARD.

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55

LG Electronics

Cause

Countermeasure

No 12V supply to bottom left X-Board.

Connect 12V line

Symptom

The 2/5 right part of the screen is blank. (Bottom left X-BOARD )

Check Check Check Bottom left X-BOARD 12V.( If 0V, it happens ) Check 12V line from SMPS to X-BOARD.

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56

LG Electronics

Cause

Countermeasure

The connecting of X-Board bottom left connector is bad.

Reassemble it.

Symptom

ADDRESS bar appears in the right bottom of the screen. (X-BOARD BOTTOM LEFT)

Check Check Check connecting of the connector of bottom left X-BOARD. Reassemble it. X-BOARD BOTTOM LEFT CONNECTOR OPEN.

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LG Electronics

Examples

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58

LG Electronics

Symptom

Cause

Connector(P13) is OPEN or Connecting condition is bad

Countermeasure

Reassemble P13.

Screen is divided in top and bottom, and vertical bar appears.

Check Check P13 CONNECTOR contact point inferior CHECK. P13 CONNECTOR SIGNAL CHEK. P13 CONNECTOR

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LG Electronics

Symptom

Cause

VSC Board Connector is Open.

Countermeasure

Reassemble VSC Board Connector

Screen is broken and has the vertical/horizontal bar.

Check Check Check the connector connecting Reassemble the Connector

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LG Electronics

Symptom

Cause

Loose VSC Board Connector

Countermeasure

Reassemble VSC BOARD Connector

The screen is bluish(Mosaic screen)

Check Check Check the connection condition of the Connector. Reassemble the Connector.

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LG Electronics

Symptom

Cause

Countermeasure

Bad IC203

Replace IC203(VPC3230D)

The mosaic appears in the screen when it connects to VIDEO Input. (The sensibility of Y-signal is low.) When connected to Component Input, it is O.K.

Check Check

Check if X201 on VSC board oscillates. Check Video In/Out of IC203 on VSC board. IC201 (VPC3230D) Decoder IC

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LG Electronics

Y - Signal in Low Sensibility

IC201(VPC3230D) Decoder is inferior TOP in Digital

63

LG Electronics

Cause Countermeasure

Symptom

Bad Connector connecting Control Board and VSC B/D.

Change the Connector

Abnormal

Normal

Noise with division of colors

Check Check Contact point and signal condition of Connector Control Board and VSC Board.

Bad Connector

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LG Electronics

Name

No signal Vertical Bar Symptom

Cause and Countermeasure 1.Cause : Bad IC2 (DA1) ▶ IC2 DA1(Data Arrange) No.162 Pin output is changing depending on the temperature.⇒ abnormal X-B’d Buffer IC * Room temperature : 2.5V Output (Normal Pin = over 2.8V) * Heated : 1.5V Output(Normal Pin = 2.7V ) ⇒ Bad IC2 (DA1) 2. Countermeasure : Replace IC2 < Waveform of normal pin> ─ heated

8cm

Realization

< Waveform of abnormal pin > ─ heated

DA1

DA1

Buffer

Buffer

When ASIC Chip(IC2 DA1 LGD4001) on Control Board gets high temperature, you can observe it (In normal temperature it’s O.K. ) Buffer(74ACT541) waveform abnormally narrows. → In this case, it is impossible for Flip Flop(74AC574) on X B/D to read data.

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LG Electronics

Name

Add Open (Green 1 Line) Symptom

Cause and Countermeasure 1.cause: Add. COF Drive IC inferior

COF불량시 불량시 부품변경 가능한가? 가능한가

Add. COF Drive IC

Normal Line Data waveform

Open Line Data output waveform

▶ the output of inferior line less than that of the normal Line Add. COF Drive IC inferior ▶ COF inspection검사기 : 24V Open check (normal 50V)

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LG Electronics

Name

Vertical bar when Power off/on(Mis-discharge) Symptom

Cause and Countermeasure 1.Cause : Control board malfunctions when Power off/on. 2.Countermeasure: Change some parts on Control board. 3.Changing parts : A32_CTRL_03 B/D (Marked on PCB) -.R14,17,18,21 : 330 ==> 4.7K (Chip Resistor) -.R15,16,19,20 : 22K ==> 4.7K (Chip Resistor) -.C504, 505 : 0.1uF / 50V add (Chip Capacitor) Control board

Realization 1.PDP Power on Mode external input (regardless of wire/wireless signal but it’s easy to reenact in wireless signal) 2. Remove Power Cord (Power’s off) 3.after about 20minutes, insert Power cord (automatically the Power’s on and the vertical bar is shown as above)

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LG Electronics

TABLERO DE CIRCUITO IMPRESO MAIN(TOP) :MP-40PA10

MAIN(TOP) :RP-BA10

MAIN(BOTTOM)

MAIN(BOTTOM)

* MP-40PA10 POWER S/W

DIAGRAMA DE ALAMBRADO CONTROL

P804

P102

SPK(TOP)

P807

SPK(BOTTOM)

P805 P301 P803 P802

P8

01 P801 P802

P806 P811 P810

P302

P809

P8 15

P004A PD501

P14

P0

P1

00

P15

P007A

P007B

P304

P004B

* RP-BA10 SMPS

A/V(TOP)

A/V(BOTTOM)

CONTROL

05A P0 03A

P006A

P303

42 Inch(Wide) PDP SVC Training Manual

LG Electronics / DND QA

Contents Ⅰ. Usage/Service Points to be concerned Ⅱ. Module formation & spec Ⅲ. Screen defect diagnosis 1. 4/7 or 3/7 of screen is not displayed. 2. Screen by Data COF is not displayed. 3. one or more of Data COF IC have regular vertical lines. 4. Data COF IC unit error pattern 5. The screen by Scan COF is not displayed. 6. Regular- interval vertical line in the whole screen. 7. Vertical data copy 8. One or more vertical bars. 9. One or more horizontal bars. 10. Input signal pattern is displayed but the whole brightness of screen is dark. 11. In full white pattern, foreign color is displayed or in full black pattern, misdischarge is partially occurred.. 12. In full white pattern, the brightness is getting darker toward the center. 13. A specific brightness of one color is not clear.

Ⅳ. Non-picture defect diagnosis Ⅴ. One Point Service Guide(42 Inch, 40 Inch)

Ⅰ. Usage/Service points to be concerned Color PDP is a display device consisting of Panel section & Drive section. Panel section is composed of electrode, fluorescent substances ,dielectrics and gases, and drive section is a combination of electrical circuit section and PCB section. We call this concrete as PDP Module Ass’y and the following shows warning. SUGGGESTIONS 1. Static precaution Drive section circuit is C-MOS circuit, so to protect against static electricity, wear static-proof wrist band. 2. Cleaning when wiping panel, do not use liquid cleaner or other chemicals . Use a damp cloth for cleaning . 3. handling Color PDP uses high voltage(Max.500V). Be aware of electronic shock when handling PDP Unit and don’t touch drive circuit. and even driver circuit’s capacitor is turned off but charge still remains there, so to touch drive circuit, be sure to wait at least 1 minute. 4. Warning when connecting signal & Power Connector in operation do not touch connector while Color PDP is operating. 5. PDP servicing and guarantee Glass Panel and Drive Circuit section are linked and operating together. if you disassemble and assemble the product in your own hands , LGE is exempted from the guarantee of function, quality and etc. 6. Damage in still image Color PDP uses fluorescent material. The quality of PDP fluorescence by nature becomes deteriorated if using it in the same condition of CRT. To prevent this symptom, input full-screen regularly or use screensaver software. So do not display the still image for a long time. 7. Temperature & ventilation Color PDP’s Glass Panel section and Drive circuit section emit the heat so the temperature shall be kept under 40. the temperature of glass panel section is pretty high because built-in drive circuit emits the heat. PDP is operating with high voltage therefore be sure to keep it away from conductive objects. 8. Warning when handling Module be aware that PDP shall not be touched by metal or hard objects and shocked by the heat or mechanical force. be careful when disassembling or handling. be sure to wear glove for preventing injury when the glass’s broken.

LG Electronics/DND QA Gr

Service warning 1. When inserting parts or PCB, fasten the lead line to terminal before soldering. 2. When inserting high- voltage resistance(metal oxide film resistance or metal film resistance), keep 10mm away from PCB 3. High-voltage or high-temperature parts shall be away from the lead line. 4. This chassis is insulation(cold) chassis but for safety, it is better to use insulation trance. when servicing power board, be sure to use insulation trance. 5. While PDP Module is in operation, do not connect or remove lines. ※ With COF or panel defect, report it to LGE PDP module service department.

Defect diagnosis tool 1. One DVM ( FLUKE 87 or similar type ) 2. Digital Oscilloscope ( over 200MHZ )

LG Electronics/DND QA Gr

MNMN-42PZ10 Spec & Features 91.5

1259

82 1056

Power : 220V 60Hz Power consumption : 340W

635 693.5

114.8

220 779.5 1379 color temperature : over 8500˚ aspect ratio: 16:9 8500˚ K screen size (H X V) : 920.1 X 518.4mm viewing angle : over 160˚ 160˚ resolution : 852 X 480 (VGA) input signal : NTSC, HD, VGA ,SVGA Twin Picture : PC/AV Cell Pitch (H X V) : 0.36 X 1.08 displayable colors (R,G,B) : 1,677K (256 X 256 X 256) PC input : DD-SUB 15 brightness : 250 cd/ cd/㎡ (w/o filter : 550 cd/ cd/㎡ ) Control : DD-SUB25 / STB connection contrast ratio : 250:1 (w/o filter ; 700:1 ) Video input : CVBS

281 S-Video input input(Y,Cb Cb,Cr)/R,L DVD input(Y, Cb,Cr)/R,L : Y/Y. Pb/ Pb/Cb, Cb, Pr/Cr+R/L Audio input : R/L 3심 심 (Ground terminal) Power Cable : 3 Sound Output (Speaker) : R.L Out R,G,B input : DD-SUB25 (RGBHV) : STB connection AC Input : 220V 60Hz

LG Electronics/DND QA Gr

Spec of Models

MN-42PZ10(42”W PDP MNT) Market : Korea / N_ America / S_America (2001. July ~)

(Example of Desk Top Type)

RNRN-BA11(3 System Multi STB) 430(W)X78(H)X280mm(D)

ITEMS

SPECIFICATIONS(Tentative)

Screen Size: Aspect Ratio: Resolution: Peak Brightness : Contrast Ratio: Viewing Angle: Displayable Colors: Weight: Life:

42 inch/ 106cm diagonal 16 :9 (width:height) 852 x 480 Pixels(SD grade) typ.240cd/m² (with filter 60%) 700:1(Dark Room & with filter 45%) 160° horizontally and vertically 16.7 million kg (MNT), kg(D/stand), kg(spk.)x2 >25,000 hours (elapsed time to 50% of initial brightness) Dimensions(MNT) : 105.6cm wide, 63.4cm high, 8.2cm deep Input Terminals : RF terminal(PAL/SECAM/NTSC) (Set Top Box) Composite Video input(RCA) X 2, S-Video Audio L&R input(RCA) X 2 Component Video (Y,Pb,Pr) + R/L for DVD Component Video (Y,Pb,Pr)+ R/L for HDTV Stb. RGB-SUB 15 pin for HDTV Stb.(480p/720p/1080i) Analog RGB-SUB 15pin(PC VGA ~SVGA) Stereo Input for PC Audio Output Terminals : Analog RGB-SUB 15 pin(PC/DTV input bypass) (Set Top Box) Audio L&R(RCA) RGB-SUB 25 Pin for MNT(RGB/HV in & Control) Composite Video output + R/L output Input Terminals : Analog RGB-SUB 15 pin (Compatible with PC (MNT) VGA ~SVGA, Compressed XGA) RGB-SUB 25 Pin for STB(RGB/HV in & Control) Component Video (Y,Pb,Pr) for DVD & DTV Stb. Composite Video input(PAL/SECAM/NTSC) Audio L&R input(RCA)X2 Display Frequency : 15.73kHz to 60kHz horizontally, 50Hz to 75Hz(V) Picture : PIP(2Tuner:STB), Twin Picture, Digital Comb filter, Digital Video Enhancer(Jagging free ) Sound : A2 stereo, AVL, Dolby Virtual, 2x10Wrms Remote Control : Included(Unified) External Control : D-sub 25-pin connector Power Source : 110-240V , 50/60 Hz Power Consumption: 300 watts( with Max. Audio : 320W)

LG Electronics/DND QA Gr

PDP STB type & compatible model

SET TOP BOX

Compatible Model MNMN-40X3M , MNMN-40PA10, MNMN-40PA10A, MNMN-42PZ10, MNMN-60PZ10 internal all Model can be connected but because of noise problem with int ernal fan, it is terminated.Be sure that MNMN-40X3M is not compatible with SKSK-011T

DIGITAL SET TOP BOX

SK-010T ) ( SK

Separately : dedicated cable (AP(AP-EA10)

MNMN-42PZ10, MNMN-40PA10, MNMN-40PA10A, MN MN-60PZ10 All but MNMN-40X3M can be used DIGITAL SET TOP BOX

SK-011T ) ( SK

(AP-EA10) separately : dedicated cable (AP

MNMN-40PA10, MNMN-40PA10A only Only related model can be used. RN-BA10 ) ANALOG SET TOP BOX ( RN

MNMN-42PZ10 only Only related model can be used RN-BA11 ) ANALOG SET TOP BOX ( RN

LG Electronics/DND QA Gr

Ⅱ. Module diagram & spec

Y DRV Upper B/D ASSY

ZCNT TOP B/D ASSY

Label

P5

P3

P2 P300

P4

P100

Y DRV Lower B/D ASSY

ZSUS B/D ASSY Y SUS B/D ASSY

P6

VR2

P1

CTRL B/D ASSY

P2

VR1

VR1

P1

X LEFT B/D ASS’Y

X RIGHT B/D ASSY

P2

YDRV B/D ASSY

EXTERN AL CABLE C ONNECTION connector supply signal P1~P2[X B/D] 5V, 15V, VA P3[Y SUS B/D] VSC, VSETUP P2[Y SUS B/D] 5V, 15V, VS P1[Z SUS B/D] 5V, 15V, VS P300[CTRL B/D] 5V P100[CTRL B/D] VIDEO SIGNAL

1 2 3 4 5 6 7 8

PART NO. 6871QTH003B 6871QZH002B 6871QTH004B 6871QLH012A 6871QRH010A 6871QDP016B 6871QDP017B 6871QYH015A

ZCNT BOTTOM B/D ASSY product name standard PWB(PCB) ASSY ZCNT TOP B/D ASSY PWB(PCB) ASSY ZSUS B/D ASSY PWB(PCB) ASSY ZCNT BOTTOM B/D ASSY PWB(PCB) ASSY X LEFT BOTTOM B/D ASSY PWB(PCB) ASSY X RIGHT BOTTOM B/D ASSY PWB(PCB) ASSY YDRV Upper B/D ASSY PWB(PCB) ASSY YDRV Lower B/D ASSY PWB(PCB) ASSY YSUS B/D ASSY

LG Electronics/DND QA Gr

Y- Drive

Controller Board

CN1

POWER Board

CN2

Y- Board

Z- Board

VSC Board

Y- Drive EMI Filter X – Board ( L )

Local key

X – Board ( R )

Main Power

LG Electronics/DND QA Gr

Monitor Block diagram

22M M--SDRAM SDRAM STB STB

LA4282 LA4282

LA7222 LA7222

CXA2022S CXA2022S

MICOM CXP750010

Buffer Buffer HC541 HC541

MX88L284 MX88L284

PC PC

DVD DVD

PDP MPDULE

Video Video

HC74 HC74

VPC3230 VPC3230

SDA9410 SDA9410

CXA2101 CXA2101

THS8083 THS8083

LG Electronics/DND QA Gr

MN-42PZ10 VSC(JAG200 & FLI2200) Block Diagram MONOSTALE MULTIBIB. MEMORY (6M-BYTE) RGBHV 5

CLAMP_AD

SOG_OUT

VIDEO SWITCH

RGB 3 A/D CONVERTER

(M52758FP) (CXA3516R) H

3

RGBHV 5

SCALER

Buffer (74F574 x 4)

(JAG200)

PLLH/CLK 2

41P 8

4

H/V SOG

H/V/DE/CLK V H

CVBS

RGB 3

YCbCr/ YPbPr

(VPC3230D)

5 H/V/ FIELD/ LLC1 4

2

DISP_EN

H/V 2

COLOR DECODER

RGBHV DEINTERLACE (FLI2200)

H

ENHANCER (FLI2220)

COLOR CONTROL & VIDEO SWITCH

5

YUV H/V/CLK/ HBLK/VBLK

MEMORY (4M-BYTE)

H/V 2

Y,U,V,H,V

V

EPLD (GEN. CLAMP)

Clamp

(CXA2101Q)

5

Y,Pb,Pr(MNT) 3 Y,Pb,Pr(STB) 3

AUDIO R

L

AUDIO AMP LA4282(L&R)

Sound Processor (MSP3401G)

(74HCT373)

MICOM

ROM (AT29C010)

PORT EXP (M62320X3)

EEPROM X2416P

LG Electronics/DND QA Gr

RN-BA11(Tuner Receiver) L/R RN-BA11(Tuner Receiver) Block Block -- Diagram Diagram

PC

Ro

Lo MSP3401G 2’nd SiF TUNER.1

TUNER.2

M52758FP

Sound Processor

TV (M) L/R

L/R(tv) TV (S)

RGB(PC) RGB/YUV S/W RGB (DTV)

L/R(tv)

M52756FP CVBS

VPC3230D S-VHS

Y/C

CXA2069Q

※ AUDIO 공용

외부입력1 외부입력

Y,Pb,Pr(DTV)

(SUB) Video Proessor

Y/C OPTION

RGB

RGB/YUV S/W

RGB(OSD)

CXA2119M

YUV

S/W

Y/C V, L/R

A/V SW

CVBS

DCF WE

MS81V04160 외부입력2 외부입력

V, L/R

RE Y/C DVD_Y

VPC3230D

FRAME MEMORY

(MAIN) LGTV1001 DRP

Vido Proessor

+

MNT_OUT Y,Cr,Cb (DVD)

DVD/DTV

Y,Pb,Pr(DTV)

(RCA JACK)

LG Electronics/DND QA Gr

Product back & monitor in/output section

Connecting 25 Pin cable (when connecting 25 Pin cable, Connect external equipment to STB) LG Electronics/DND QA Gr

Connection diagram (back cover’s cover s open)

Controller Board

Z-Board Power Board

Y-Drive (TOP)

VSC Board Y-Board

EMI Filter

Y-Drive (Bottom)

LG Electronics/DND QA Gr

Exploded view (Back Cover, VSC, EMI, Power )

VSC BOARD

EMI Filter

POWER BOARD

BACK COVER

LG Electronics/DND QA Gr

Exploded view (Module)

CONTROL BOARD PANEL

Z-BOARD Y-Drive BOARD

Y-Drive BOARD

X-BOARD X-BOARD Y-BOARD

LG Electronics/DND QA Gr

Parts (back covers open)

Y-Drive Board (Top)

Y-Board

Y-Drive Board

Control Board(Back)

VSC Board(Front)

Power Board

EMI Filter

Z- Board

Main Power Switch

LG Electronics/DND QA Gr

EMI Filter & VSC Board are separated Y-Drive Board

X-Board ( Left )

Y-Board

Control Board

Z-Board

X-Board ( Right)

LG Electronics/DND QA Gr

Power Board ( SMPS )

Power well power Board-Korean market

Murata Power Board

LG Electronics/DND QA Gr

Ⅲ. Screen defect diagnosis 1. The 4/7 or 3/7 of screen is not displayed. 1) Check the X B/D power connector. 2) Check the connector between CTRL B/D and X B/D. 3) Replace the X B/D.

※ relations between screen and X B/D screen left 4/7 of screen right 3/7 of screen

X B/D ↔ ↔

Right X B/D Left X B/D

※ type

i) screen’s left(4/7)

ii) Screen’s right(3/7)

Displaying part Non-displaying part

LG Electronics/DND QA Gr

2. No image by Data COF. (the case one Data COF is totally or partially not displayed included) 1) It is mainly caused by related Data COF and X B/D connection error. 2) Check the connector between that Data COF & X B/D. 3) When Data COF has a defect, replace the related X B/D.

※ examples of screen display type ( beside the below, any out of 7 Data COF can be occurred. )

ok partially displaying Non-image

※ Data COF IC test method Set ① pattern( GND ) to ANODE, ② Pattern (resistance joint part ) to CATHOD, Test diode forward and backward. Measure ③ resistance value.(10Ω)

② resistance

① GND

LG Electronics/DND QA Gr

3. Data COF IC unit error 1) As pictures below, this is caused by the clock error of Data COF IC 2) With , , , check Data COF connector and replace the X B/D. 3) With , , check the connector between CTRL B/D & X B/D and replace X B/D or CTRL B/D.

※ Cases

One IC error in one COF

Two every-second IC error in one



4 IC errors in one COF

Data COF IC unit error in the whole X B/D

Data COF IC unit error in the whole screen.

LG Electronics/DND QA Gr

4. Regular vertical line with one or more Data COF IC 1) Regular vertical line with one Data COF IC is mainly caused by X B/D output terminal buffer’s output error. When two Data COF ICs have regular vertical lines, it means the data transfer from Controller B/D to X B/D has an error. 2) Check the related X B/D connector. 3) Replace that X B/D or CTRL B/D

※ relation between screen & X B/D

screen

※ case

X B/D

left 4/7 of bottom screen

↔

Right X B/D

right 3/7 of bottom screen

↔

Left X B/D

Partial error or total error with One or more ICs defect.

LG Electronics/DND QA Gr

5. The screen by Scan FFC is not displayed 1) It is mainly caused by the bad connection between Scan FFC & Y B/D. 2) Check the related connector between Scan COF & Y B/D. 3) When Scan IC has a defect, replace the related Y DRV B/D.

※ case

1/8 of the screen ● ● ●

OK total or partial non- image ※ SCAN IC check

Set Vpp Pin to ANODE, GND pin to CATHOD and test diode forward and backward.

LG Electronics/DND QA Gr

6. Regular vertical lines in the whole screen. (mainly in one specific color, regular line is flicking) 1) This problem is related to CONTROL B/D. 2) Replace CONTROL B/D

※case

Regular vertical lines in the whole screen

7. Vertical Data copy 1) It possibly happens when scan wave does not form properly. 2) Replace Y DRVB/D or Y SUS B/D

※ case











LG Electronics/DND QA Gr

8. One or more vertical lines in the screen. 1) Irregular vertical line is not related to Controller B/D or X B/D. 2) It is mainly caused by the followings open(or short). - Panel itself defect - DATA COF FPC attached to panel is open or short. - DATA COF attached to panel itself defect 3) Replace module

※ case

There are several types. Several lines in ¼ area. It can be seen on the both side, right and left. The area is sometimes over ¼.

9. One or more horizontal lines in the screen. 1) Irregular borizontal line is not related to Controller B/D or Y B/D. 2) It is mainly caused by the followings open(or short). - Panel itself defect - SCAN FPC attached to panel is open or short. - SCAN IC attached to panel itself defect 3) Replace Y DRV B/D

※ case Not always like this. There can be several horizontal lines

LG Electronics/DND QA Gr

10. Input signal pattern is displayed but the whole brightness of the screen is dark. 1) It happens when Z B/D is not operating well. 2) Check whether Z B/D’s power connector is plugged . 3) Check whether the connector between Controller B/D & Z B/D is plugged. 4) Replace Controller B/D or Z B/D.

11. In full white pattern, foreign color is displayed or in full black pattern, mis-discharge is partially occurred. 1) Check the slope of Y B/D set up, set down waveform. 2) Check the slope of Z B/D’s ramp waveform 3) Measure each B/D’s output waveform by over 200MHz oscilloscope and compare it to the below picture. it is possible to control Y B/D’s setup slope by adjustinng VR2, setdown slope by VR1 and Z B/D’s ramp slope by VR1.. - Y B/D measurement point : TP ( Connector P4 36 pin ) - Z B/D measurement point : panel connection part ( SUS_OUT )

230V Vsetup 175V Vs 0V

15µs 175V Vs

setup 25µs

20µs

setdown 230µs

Y output voltage wave

Z RAMP voltage wave

LG Electronics/DND QA Gr

12. In full white pattern, the brightness is getting darker toward the center. 1) It happens with Z B/D’s ramp waveform 2) Check the connection between CTRL B/D and Z B/D’s connection cable. 3) Replace Z B/D.

※ case

13. A specific brightness of one color is not clear. 1) Check CTRL B/D’s input signal connector. 2) Replace CTRL B/D.

LG Electronics/DND QA Gr

Ⅳ. NonNon-picture Defect diagnosis. Non- image or same symptom when power off or black pattern. 1) Check CTRL B/D’s LED(D1~D4). 2) Check the power or signal cable input into CTRL B/D. 3) Check X B/D, Y B/D and Z B/D’s power connector. 4) Check the connector between CTRL B/D and X B/D, Y B/D, Z B/D respectively. 5) Measure each X, Y, Z B/D’s output waveform with over 200MHz oscilloscope and compare it to the below picture to detect the defect and replace that. - Y B/D measurement point : TP ( Connector P4 36 pin ) - Z B/D measurement point : panel connection part ( SUS_OUT ) - X B/D measurement point : L1(RIGHT), L2(LEFT BOTTOM) 6)Test scan(Y) IC. 7)Test data(X) COF IC 8)Replace CTRL B/D.

1Frame(16.7ms) 5) Test scan(Y) IC. 6) Test data(X) COF IC. 7) Replace CTRL B/D.

< A: Y B/D output waveform - 1 FRAME > < B: Y B/D output waveform - 1 SF > < B: Y B/D output waveform - 2 SF(non-Setup SF) >

LG Electronics/DND QA Gr

< A: Y B/D output waveform - 1Frame > < B: Y B/D output waveform - 7~12 SF(SE) >

< A: Z B/D output waveform - 1Frame >

< B: Z B/D output waveform - 1SF >

< X B/D output waveform - 1 FRAME > < X B/D output waveform - 1 SF > < X B/D output waveform - amplification >

LG Electronics/DND QA Gr

Ⅴ. One Point Service Guide

42 Inch

42” PDP Flicker and No Raster Troubleshooting Guide cause : bad connection between Y-Board # 1, 2 drive board Connector pin

P6 Rework should be done P4 Y-Driver Board

Y-Board LG Electronics/DND QA Gr

② ②

①

①

P4 ②

P6 ② ①

①

amplified

amplified ① : outside Leg ② : inside Leg •P 6, P 4 both are the first pin, when wiring, it should be done as picture shown. (bend the wire to Y-Driver B/D not to Y-B/D . If not there can be noise)

①

②

①

②

•Don’t be confused with Pin number •Improved since Dec,2001.

LG Electronics/DND QA Gr

①

① ②

②

②

① ②

①

Be sure not to misconnect the line. See the picture precisely and then connect jump wire at the exact exact point

LG Electronics/DND QA Gr

Intermittent nono-image/image error while watching X CANVAS

The screen is intermittently disappeared . LED is green

X CAVBAS

screen is distorted weiderly (happened 2 a day)

X CANVAS cause : bad connection between YY-Board and #1, 2 pin of Y-Drive Board Connector

troubleshooting : connect bad linking between YY-Board & Y-Drive with jump wire (all 4 parts)

see working instruction(revised since Dec,2001. 1)

normal

LG Electronics/DND QA Gr

No Power X CANVAS

No Power ( in STST-BY mode, but no LED)

X CANVAS

normal

Check the power supply & main power S/W on Check EMI board fuse (check the rated capacity )

Be sure to use rated fuse. Fuse 15 A

LG Electronics/DND QA Gr

No Raster X CAVBAS

X CANVAS

when Power’s Power s on, after 2 ~ 3 sec, it’s it s off ( LED changing green into red )

normal

CHECK : remove STB and operate monitor individually. (check STB defect or Monitor defect ) When using ANALOG STB, check STB only MNRN-BA11 MN-42PZ10 only STB : RN Remove each Board’s Board s power supply connector and check the power is off. When the power is not off,replace the related board.

LG Electronics/DND QA Gr

No Picture X CANVAS

no picture (LED’s (LED s green)

X CANVAS

normal

Core checkpoint : remove STB and operate monitor individually. (check whether STB’s STB s a defect or monitor’s monitor s one) With monitor defect, check VSC and then Controller Board. Troubleshooting : replace VSC Board

LG Electronics/DND QA Gr

Address Bar ( Horizontal Bar ) X CANVAS

no image (LED’s (LED s green)

X CANVAS

normal

Y-Drive ( Bottom ) defect Cause : Y Troubleshooting : YY-Drive (lower part) replacement This problem is shown in the bottom of screen, So it is caused by YY-Drive

Y-Drive Board ( Bottom ) LG Electronics/DND QA Gr

Address Bar ( Horizontal Bar ) X CANVAS

no image (LED’s (LED s green)

X CANVAS

normal

Y-Drive Board ( Top ) Y-Drive Board (upper part) defect Cause : Y Troubleshooting : YY-Drive Board replacement

LG Electronics/DND QA Gr

No Picture X CANVAS

no image (LED’s (LED s green)

X CANVAS

normal PD501 Connector

cause : PDPD-501 Connector contact point defect PD-501 Connector replacement troubleshooting : PD PD-501 Connector contact point defect, (with PD Various defect symptoms can be seen)

LG Electronics/DND QA Gr

High frequency noise (“Bee ( Bee” Bee sound) X CANVAS

X CANVAS

bee”) normal picture with high frequency noise ((“bee bee )

normal

SMPS is supposed to operate with high frequency so small noise is not considered as a defect. Power (SMPS) Board 1. C8178 0.22㎌ 0.22㎌/50V add 2. Open C8139 right lead, and then connect it to R8164 right lead. Improved since Nov,2001

C8178 0.22uF electrolytic capacitor insertion

#. Slight noise is not a defect and write down explanation

Open C8139 right lead and then wire R8164 right lead LG Electronics/DND QA Gr

No picture in rightright- 2/5 area X CANVAS

right- 2/5 area No picture in the right

X CANVAS

normal

X-Board ( Left ) power supply check X-Board ( Left )Connector check X-Board ( Left ) replacement

LG Electronics/DND QA Gr

Address Bar (Vertical ) X CANVAS

right-2/5 area stripe in right

X CANVAS

normal

X-Board ( Left ) power supply check X-Board ( Left ) Connector check X-Board ( Left ) replacement

LG Electronics/DND QA Gr

No picture in left 3/5 of the screen X CANVAS

left 3/5 of screen with vertical stripes

X CANVAS

normal

X-Board ( Right ) power supply check X-Board ( Right )Connector check X-Board ( Right ) replacement

LG Electronics/DND QA Gr

Address Bar (Vertical ) X CANVAS

left 3/5 of screen with vertical stripes.

X CANVAS

normal

X-Board ( Right ) power supply check X-Board ( Right )Connector check X-Board ( Right ) replacement

LG Electronics/DND QA Gr

No Red X CANVAS

no Red ( B or G )

X CANVAS

normal

Test Monitor individually. If detect a problem with monitor, check VSC Board. If it has a problem with STB connecting, focus on 25 Pin. Be sure not to connect 5 Pin (AP(AP-EA10) by force 25 Pin Cable P/No : GVZ AP AP-EA10

Be sure not to bend it by force or internal Insulated conductor can be down. LG Electronics/DND QA Gr

42 Inch

1) X - Board COF Connector separation Lift up the right and left of X-BOARD CONNECTOR.

Lift up X-BOARD CONNECTOR and separate COP CONNECTOR by pulling up.

When you handle COF CONNECTOR, don’t pressure. First release LOCK and separate. If COF CONNECTOR is damaged, you should replace MODULE ASS’Y. So, be aware of this!!

COF Connector

Warning Warning When When you you exchange exchangeX-Board, X-Board, first first you you should should separate separate COF COF Connector. Be careful to handle it. Connector. Be careful to handle it. COF COF Connector Connector is isattached attached to to Module. Module. When When COF COF Connector Connector is is broken, Module ASS’Y must be replaced a new one. broken, Module ASS’Y must be replaced a new one.

LG Electronics/DND QA Gr

2) X - Board Connector separation

Lift up each edge of left/right.

Lifted condition Be careful to handle LOCK or it can be broken. When LOCK is broken, replace a new X-BOARD.

Warning Warning It’s easy to separate it by releasing Connector Lock . Do not pressure or it can be hurt. When LOCK is hurt, replace a new X-BOARD

LG Electronics/DND QA Gr

3) Y - Board COF Connector separation

Pull the white LOCK as shown in arrow

Pull the white LOCK as shown in arrow.

Separate COF CONNECTOR by pulling in the left.

Warning Warning Be careful to handle LOCK and COF Connector. When LOCK part is damaged, you should replace a new Y-Board. In case of COF Connector, Module Assembly.

LG Electronics/DND QA Gr

4) Z - Board COF Connector separation

Separate the fixed Screw of Z-Board. Pull out Lock as shown in arrow.

Condition in Lock part is pulled

Warning Warning Be careful not to tear COF Connector. If COF Connector is torn, replace a new Module Assembly

COF Connector

Pull COF Connector as shown in arrow. It’s easy to separate COF on condition that Z-Board Screw is separated. In case Z-Board is assembled, it’s really hard to separate.

LG Electronics/DND QA Gr

5) Connector separation Guide Push LOCK and pull out

PUSH

PUSH

PUSH

PUSH

PUSH

PULL

LG Electronics/DND QA Gr

6) Control Board & VSC Board Connector

LG Electronics/DND QA Gr

7) Gas injection (Sealing up) condition

Be sealed up after gas injection

Warning Warning

Be sealed up after gas injection

Be careful to handle the sealed-up part after gas injection. If it is broken, the gas escapes. So, replace the Module.

LG Electronics/DND QA Gr

8) Power off in 2 ~ 3 minutes(Protection) Power PowerisisOn Onand andoff off2~3 2~3minutes. minutes. (Protection) (Protection) P301 P301Connector ConnectorOpen Open Check. Check.

OK

XX--Board BoardTop TopRight Right Change. Change. OK

P302 P302Connector ConnectorOpen Open Check Check

P303 P303Connector ConnectorOpen Open Check Check

XX--Board BoardTop TopLeft Left Change. Change. OK

P304 P304Connector ConnectorOpen Open Check Check

XX--Board BoardBottom BottomRight Right Change. Change. OK

P102 P102Connector ConnectorOpen Open Check Check

P3, P3,P2 P2Connector ConnectorOpen Open Check Check

XX--Board BoardBottom BottomLeft Left Change. Change. OK

ZZ--Board Board Change. Change. OK

P005, P005,P003 P003Connector ConnectorOpen Open Check Check PROTECT PROTECT operation; operation;

P006 P006Connector ConnectorOpen Open Check Check

When When the the load load voltage voltage is is short. short. When When each each voltage voltage doesn’t doesn’t work work (in (in general) general)

YY--Board Board Change. Change.

OK

VSCVSC-Board Board Change. Change. OK

VSC VSC--Board Board Change. Change. Sound Output IC Short Sound Output IC ShortCheck Check

Power Power Board Board Change Change

LG Electronics/DND QA Gr

9) Power off in 2 ~ 3 minutes(Protection)

L813 Cold Solder

Symptom : As soon as the power on, it’s off in 2 - 3minutes. (PROTECT operation) Cause : No VS voltage L813 Coil cold soldering.

Check Check Open the Connector connecting to each Board to check the power is off. if each Board is same, check the Power Board and voltage.

LG Electronics/DND QA Gr

10) ADD BAR inspection and repair

Press the ADJ KEY and check the position of add bar by changing WHITE or RED or BLUE or GREEN

HEATRUN : WHITE

Top Right

Bottom Right

Top Left

Bottom Left

MP-40PA10 uses 4 board such as left,right, top and bottom. Divide the screen in 4 and once you see ADD BAR check COF CONNECTOR between MODULE and X-BOARD. If there is no defect in COF CONNECTOR replace X-BOARD. But the problem still remains and check the connector between X-BOARD and CONTROL BOARD. And if you can’t find defect, check CONTROL.

LG Electronics/DND QA Gr

11) One Point Service Guide

Symptom : B color 1 Address line Open Cause : Dented COF

COF is dented

LG Electronics/DND QA Gr

Symptom : Inferior R Address color Cause : Inferior DATA output by cold soldering 16 pin of IC14 in X-L-TOP ( Normal waveform after tearing off IC Pin) Countermeasure : Replace X-L-TOP board.

IC14

Cold Soldering

Abnormal waveform by cold soldering Normal waveform after tearing off IC pin

LG Electronics/DND QA Gr

Symptom

Causes

If 15V line voltage reduces below 14V, Mis-discharge occurs and power off because of protection circuit.

Countermeasure

Replace PSU (Power Supply Unit) and defective X-Board.

Defective X-Board

The blue spreads on the screen (Mis-discharge) and power off in 2 ~ 3 seconds. If you turn on again, it will be same problem.

Check Check If when Power on, screen shows like above and turn off in 2 seconds, check if turning off or not by disconnecting all X & Y boards.

LG Electronics/DND QA Gr

Symptom

Cause

No 5V supply to Top right X-Board.

Countermeasure

Connect 5V line

The top left part of screen is broken (Top Right X-BOARD)

Check Check Check Top right X-BOARD 5V.(If 0V, it happens) Check 5V line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

No Va(70V) supply to Top right X-Board.

Countermeasure

Connect 70V line

Pinkish screen in the top left. (Top right X-BOARD)

Check Check Check Top right X-BOARD Va(70V).(If 0V, it happens) Check 70V(Va) line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

Countermeasure

No 12V supply to Top right X-Board.

Connect 12V line

No Va(70V) supply to Top right X-Board.

Connect 70V line

The 3/5 top left in the screen is blank (Top Right X-BOARD) Check Check Check Top right X-BOARD 12V.( If 0V, it happens ) Check Top right X-BOARD Va(70V).(If 0V, it happens) Check 12V & 70V(Va) line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

Countermeasure

No 12V supply to Top left X-Board.

Connect 12V line

No Va(70V) supply to Top left X-Board.

Connect 70V line

The 3/5 top right of the screen is blank. (Top left X-BOARD)

Check Check Check Top left X-BOARD 12V.( If 0V, it happens ) Check Top left X-BOARD Va(70V).(If 0V, it happens) Check 12V & Va(70V) line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Cause

Countermeasure

P1 COF connector on Top left X-Board is open.

Reassemble it

Symptom

Pinkish screen in the 1/5 top right (Top left X-BOARD)

Check Check Check the contact point and Locking of P1 on Top left X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

No 5V supply to bottom right X-Board.

Countermeasure

Connect 5V line

The 3/5 bottom left of screen is broken. (BOTTOM RIGHT X-BOARD)

Check Check Check Bottom right X-BOARD 5V.( If 0V, it happens ) Check 5V line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

No 12V supply to bottom right X-Board.

Countermeasure

Connect 12V line

No Va(70V) supply to bottom right X-Board.

The 3/5 bottom left of the screen is Blank. (Bottom Right X-BOARD)

Check Check Check Bottom right X-BOARD 12V.( If 0V, it happens ) Check 12V line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

No 5V supply to bottom left X-Board.

Countermeasure

Connect 5V line

The 2/5 right of the screen is broken. (Bottom left X-BOARD)

Check Check Check Bottom left X-BOARD 5V.( If 0V, it happens ) Check 5V line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Symptom

Cause

Countermeasure

No 12V supply to bottom left X-Board.

Connect 12V line

The 2/5 right part of the screen is blank. (Bottom left X-BOARD )

Check Check Check Bottom left X-BOARD 12V.( If 0V, it happens ) Check 12V line from SMPS to X-BOARD.

LG Electronics/DND QA Gr

Cause

Countermeasure

The connecting of X-Board bottom left connector is bad.

Reassemble it.

Symptom

ADDRESS bar appears in the right bottom of the screen. (X-BOARD BOTTOM LEFT)

Check Check Check connecting of the connector of bottom left X-BOARD. Reassemble it. X-BOARD BOTTOM LEFT CONNECTOR OPEN.

LG Electronics/DND QA Gr

Examples

LG Electronics/DND QA Gr

Symptom

Cause

Connector(P13) is OPEN or Connecting condition is bad

Countermeasure

Reassemble P13.

Screen is divided in top and bottom, and vertical bar appears.

Check Check P13 CONNECTOR contact point inferior CHECK. P13 CONNECTOR SIGNAL CHEK. P13 CONNECTOR

LG Electronics/DND QA Gr

Symptom

Cause

VSC Board Connector is Open.

Countermeasure

Reassemble VSC Board Connector

Screen is broken and has the vertical/horizontal bar.

Check Check Check the connector connecting Reassemble the Connector

LG Electronics/DND QA Gr

Symptom

Cause

Loose VSC Board Connector

Countermeasure

Reassemble VSC BOARD Connector

The screen is bluish(Mosaic screen)

Check Check Check the connection condition of the Connector. Reassemble the Connector.

LG Electronics/DND QA Gr

Symptom

Cause

Countermeasure

Bad IC203

Replace IC203(VPC3230D)

The mosaic appears in the screen when it connects to VIDEO Input. (The sensibility of Y-signal is low.) When connected to Component Input, it is O.K.

Check Check

Check if X201 on VSC board oscillates. Check Video In/Out of IC203 on VSC board. IC201 (VPC3230D) Decoder IC LG Electronics/DND QA Gr

Examples

IC201(VPC3230D) Decoder is inferior LG Electronics/DND QA Gr

Cause Countermeasure

Symptom

Bad Connector connecting Control Board and VSC B/D.

Change the Connector

Abnormal

Normal

Noise with division of colors

Check Check Contact point and signal condition of Connector Control Board and VSC Board.

Bad Connector LG Electronics/DND QA Gr

Name

No signal Vertical Bar Symptom

Cause and Countermeasure 1.Cause : Bad IC2 (DA1) ▶ IC2 DA1(Data Arrange) No.162 Pin output is changing depending on the temperature.⇒ abnormal X-B’d Buffer IC * Room temperature : 2.5V Output (Normal Pin = over 2.8V) * Heated : 1.5V Output(Normal Pin = 2.7V ) ⇒ Bad IC2 (DA1) 2. Countermeasure : Replace IC2 < Waveform of normal pin> ─ heated

8cm

Realization

< Waveform of abnormal pin > ─ heated

DA1

DA1

Buffer

Buffer

When ASIC Chip(IC2 DA1 LGD4001) on Control Board gets high temperature, you can observe it (In normal temperature it’s O.K. ) Buffer(74ACT541) waveform abnormally narrows. → In this case, it is impossible for Flip Flop(74AC574) on X B/D to read data.

LG Electronics/DND QA Gr

Name

Add Open (Green 1 Line) Symptom

Cause and Countermeasure 1.cause: Add. COF Drive IC inferior

Add. COF Drive IC

Normal Line Data waveform

Open Line Data output waveform

▶ the output of inferior line less than that of the normal Line Add. COF Drive IC inferior ▶ COF inspection검사기 : 24V Open check (normal 50V)

LG Electronics/DND QA Gr

Name

Vertical bar when Power off/on(Mis-discharge) Symptom

Cause and Countermeasure 1.Cause : Control board malfunctions when Power off/on. 2.Countermeasure: Change some parts on Control board. 3.Changing parts : A32_CTRL_03 B/D (Marked on PCB) -.R14,17,18,21 : 330 ==> 4.7K (Chip Resistor) -.R15,16,19,20 : 22K ==> 4.7K (Chip Resistor) -.C504, 505 : 0.1uF / 50V add (Chip Capacitor) Control board

Realization 1.PDP Power on Mode external input (regardless of wire/wireless signal but it’s easy to reenact in wireless signal) 2. Remove Power Cord (Power’s off) 3.after about 20minutes, insert Power cord (automatically the Power’s on and the vertical bar is shown as above)

LG Electronics/DND QA Gr

STB POWER

PRINTED CIRCUIT BOARD MONITOR MAIN(TOP)

STB MAIN(TOP)

MONITOR MAIN(BOTTOM)

STB MAIN(BOTTOM)

SPK(TOP)

STB AV(TOP)

SPK(BOTTOM)

MONITOR POWER-KEY

STB AV(BOTTOM)

STB CONTROL

MONITOR CONTROL

P/N: 3854VA0091A-S2(2/2) 2001.05.18

POWER P/No : 3854VA0091A-S1(2/2) 2001.05.18

P/No : 3854VA0091A-S2(1/2) 2001.05.18

VSC P/No : 3854VA0091A-S1(1/2) 2001.05.18

60 Inch PDP SVC Training Manual

LG Electronics / DND QA

Contents Ⅰ. Warning and safety instruction Ⅱ. Module structure & spec Ⅲ. Defect diagnosis 1. No image in the specific area 2. No picture by Data COF. 3. Regular vertical line in a or more Data COF ICs 4. Data COF IC unit error pattern 5. Regular-interval vertical line in the whole screen 6. Vertical data copy 7. One or more vertical lines in the screen 8. One or more horizontal lines in the screen 9. Pattern but with dark 10. In Full White, foreign color or in Full Black , partial mis-discharge. 11. In Full White, getting darker toward the center 12. One specific brightness’ error of one specific color

Ⅳ. Non-image defect diagnosis Ⅴ. One Point Service Guide(42 Inch, 40 Inch)

Ⅰ. Usage/Service points to be concerned Color PDP is a display device consisting of Panel section & Drive section. Panel section is composed of electrode, fluorescent substances ,dielectrics and gases, and drive section is a combination of electrical circuit section and PCB section. We call this concrete as PDP Module Ass’y and the following shows warning. SUGGGESTIONS 1. Static precaution Drive section circuit is C-MOS circuit, so to protect against static electricity, wear static-proof wrist band. 2. Cleaning when wiping panel, do not use liquid cleaner or other chemicals . Use a damp cloth for cleaning . 3. handling Color PDP uses high voltage(Max.500V). Be aware of electronic shock when handling PDP Unit and don’t touch drive circuit. and even driver circuit’s capacitor is turned off but charge still remains there, so to touch drive circuit, be sure to wait at least 1 minute. 4. Warning when connecting signal & Power Connector in operation do not touch connector while Color PDP is operating. 5. PDP servicing and guarantee Glass Panel and Drive Circuit section are linked and operating together. if you disassemble and assemble the product in your own hands , LGE is exempted from the guarantee of function, quality and etc. 6. Damage in still image Color PDP uses fluorescent material. The quality of PDP fluorescence by nature becomes deteriorated if using it in the same condition of CRT. To prevent this symptom, input full-screen regularly or use screensaver software. So do not display the still image for a long time. 7. Temperature & ventilation Color PDP’s Glass Panel section and Drive circuit section emit the heat so the temperature shall be kept under 40. the temperature of glass panel section is pretty high because built-in drive circuit emits the heat. PDP is operating with high voltage therefore be sure to keep it away from conductive objects. 8. Warning when handling Module be aware that PDP shall not be touched by metal or hard objects and shocked by the heat or mechanical force. be careful when disassembling or handling. be sure to wear glove for preventing injury when the glass’s broken.

3 3/47

LG Electronics/DND QA Gr

Service warning 1. When inserting parts or PCB, fasten the lead line to terminal before soldering. 2. When inserting high- voltage resistance(metal oxide film resistance or metal film resistance), keep 10mm away from PCB 3. High-voltage or high-temperature parts shall be away from the lead line. 4. This chassis is insulation(cold) chassis but for safety, it is better to use insulation trance. when servicing power board, be sure to use insulation trance. 5. While PDP Module is in operation, do not connect or remove lines. ※ With COF or panel defect, report it to LGE PDP module service department.

Defect diagnosis tool 1. One DVM ( FLUKE 87 or similar type ) 2. Digital Oscilloscope ( over 200MHZ )

4 4/47

LG Electronics/DND QA Gr

MNMN-60PZ10 Spec & Features 119

1727

99 1455

Power : 220V Power consumption : 700W (Max, Audio : 750W)

883 964

117

220 958.6 1807

color temperature : over 8000˚ aspect ratio : 16:9 8000˚ K screen size (H X V) : 1318 X 744mm viewing angle : over 160˚ 160˚ resolution : 1280 X 720 (HD/XGA) input signal : NTSC, HD, VGA ~ XGA Twin Picture : PC/AV Cell Pitch (H X V) : 0.343 X 1.032 displayable colors(R,G,B) : 1,677 K (256 X 256 X 256) PC input : DD-SUB 15 brightness : 200 cd/ cd/㎡ (w/o filter : 450 cd/ cd/㎡ ) Control : DD-SUB25 / STB connection contrast ratio : 250:1 (w/o filter ; 500:1 ) Video input : CVBS 5/47

287

S-Video input DVD input(Y,Cb input(Y,Cb,Cr)/R,L Cb,Cr)/R,L : Y/Y. Pb/ Pb/Cb, Cb, Pr/Cr+R/L Audio input : R/L 3심 심 (Ground terminal) Power Cable : 3 Sound Output (Speaker) : R.L Out 5 input R,G,B input : DD-SUB25 (RGBHV) : STB AC Input : 220V LG Electronics/DND QA Gr

Ⅱ. Module formation & spec

DC/DC Board CN1 P200

Y- Board VR 301

VR1 (+15V) CN2

Controller Board

Z- Board VR2 (Vsc )

VR 301

VR 424 VR3 (Vsetup)

B61

B61 (TP;sus_up)

(TP; sus_out)

PDP60WXDP3 PCB ASS'Y LIST NO 1 2 3 4 5 6 7 8 9 10 11 12

EX TERNAL CABLE CONNECTION connector CN1 CN2 P200

suuply signal 5V (Drive B/D용) Va, Vs 5V (Ctrl B/D용)

P/N 6871QCP009A 6871QLH008A 6871QRH006A 6871QXH004A 6871QXH005A 6871QYH016A 6871QDH023A 6871QDH024A 6871QTH016A 6871QTH017A 6871QZH010A 6871QPH001A

product name PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y PWB(PCB) ASS'Y

standard Controller Board X Top-left / Bottom-Right Board X Top-right / Bottom-left Board X Center Top Board X Center Bottom Board Y-SUS Board Y-DRV (Top) Board Y-DRV (Bottom) Board Z-CNT (Top) Board Z-CNT (Bottom) Board Z-SUS Board DC/DC Converter Board

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LG Electronics/DND QA Gr

Monitor diagram (MN(MN-60PZ10)

X-Board

X-Board

X-Board

Y-Dribe Board

DC/DC Board CN1

POWER Board

Controller Board

VR1 (+15V)

P200

Y- Board

CN2

Z- Board VR 301 VR 424

VSC Board

VR2 (Vsc (Vsc )

PFC Board

VR 301

B61 VR3 (Vsetup (Vsetup) Vsetup)

B61 (TP;sus (TP;sus_up) sus_up)

(TP; sus_out) sus_out)

Y-Dribe Board Side A/V X-Board

X-Board

L/F X-Board

Local key

7 7/47

LG Electronics/DND QA Gr

X-Board

X-Board Y-Drive Board POWER Board CONTROLLER Board

DC-DC Board

Y-Board

Z-Board

PFC Board VSC Board

Y-Drive Board

X-Board

X-Board

8 8/47

LG Electronics/DND QA Gr

Monitor connection diagram FAN 5900V08001A 5900 V08001A

P803

P804

P805

P802

7p

12p 12 p

12p 12 p

P901

P801

MAIN POWER 6871VPM054A VPM054A 6871

P8012

P807A

P804B

P808B

P803B

5p

4p

8p

21p 21 p

DC-DC BOARD PDP MODULE DC

3p

CN2

3p

P8013

10p 10 p

4p

P806B

5p

P601A

3p

8p

P1

CN1

4p

P8011

P200

PDP MODULE CONTROL BOARD

VSC 6871VMM693A VMM693A 6871 P805A P806

10p 10 p

5p

A/V in

7p

Component in

6p

P102

10p 10 p

p1720

5p

4p

8p

P804A

P808A

P803A

PFC 6871VPM052A VPM052A 6871

Audio in

RGB in

RGB control in

LOCAL KEY 6871VSM670A 6871 VSM670A (Sub power, power,vol vol+, vol+,+,-,input select)

6p

4p

P002B

P001B

S-video in

P801

P840A

P830A

2p

2p

2p MAIN POWER SWITCH

SIDE A/V 6871VSM66A VSM66A 6871 AC INPUT

Spk out 9/47

9 LG Electronics/DND QA Gr

Monitor block diagram PDP Module ( 21PIN ) RGB(24bit)

R/L (Spk.) Spk.) V/R/L DVD PC

Video Scan Converter & Audio Amp. Ext. I/F

H,VSYNC BLANK DISPEN

+6V +6V ST 5V +12V +30V

+15V

COMMON SUSTAIN DRIVER

+5Vcntl +5Vcntl VS VSc

VA

ADDRESS DRIVER (X)

VS

+5V

(Y)

+15V

+5V +15V

+5V

ADDRESS DRIVER (X)

VS VSetup

+5

(Z)

Vsc

VA

VSetup DCDC2) V A

+5V

SCAN SUSTAIN DRIVER

PANEL 1280XR,G,BX720

VS

Power Supply (AC-DC, PFC)

+5V

(Control)

(VSC)

Control & RGB (25pin) * Note 1

Image Processing Logic & ScanController

+15V

+15V VA

AC Input EMI Filter

* Note 1 : DTV STB SKSeries model SK-010T only(Korea Only) , except MT,MZ,MU,MP 10/47

10 LG Electronics/DND QA Gr

VSC board block diagram S-VIDEO M52758FP (Video switch)

RGB INPUT/ CONTROL

STB_R,G,B,H,V

S_Y/C

switching signals input from two types of image and outputting them

JAGASM (Scaler)

PC_R,G,B

21P

RGB-PC/ RGB-DTV

R,G,B,H,V

To PDP Module

MEMORY (8M-BYTE)

PC

SII150 (TMDS TX)

Highly Integrated, Mixed Signal Flat Panel Display Processor

DTV DTV_Y,Pb,Pr

Y,U,V

H,V

PC_V,H

H,V

R,G,B,H,V

DTV_Y,Pb,Pr

AUDIO INPUT

MSP3401 (Audio signa pocess, S/W)

STB_Y,Pb,Pr

ADV7123

MEMORY (4M-BYTE)

Audio_R,L

Audio_R,L

DTV_R,G,B,V,H

FLI2220 (Enhancer)

R,G,B

FLI2200 (Deinterlace)

PIP_Y,U,V

Y0~7/C0~7

R,G,B

AV INPUT

CVBS

H,V

4H comb filter Y/C separator DTV_Y,Pb,Pr

COMPONENT

VPC3230D (Color decoder)

Y,Cb,Cr

Audio_R,L

CXA2101Q (Color control & Video SW.)

H/V

EPM7064 (Gen. Clamp)

base band signal & RGB signal processing / video switching

LA4282 (Audio AMP) SPK OUT

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LG Electronics/DND QA Gr

Power section block diagram(1)

PFC

DC - DC 60” Power Board

A 저 항

A: St-By(5V) Trans B: PFC Inductor F U S E

MULTI TRANS

CAP

C: auxiliary power trans

D

(for Vs,Va Vcc)

PFC

Inductor

D: Multi(5V/6V/12V/30V) Trans

B E i

PFC

G

F

H

VS

Inductor trans 저 항

저 항

저 항

B

trans

E: Vs(175V) Trans 1

VA

VS

VS sub

F: Vs(175V) Trans 2

trans

G: Va(75V) Trans

trans

H:Vs sub Trans 2

CEMENT 저항 CEMENT 저항

R R R

I : PFC output V. Adj resistor J : Vs output V. Adj resistor

C CAP

CAP

CAP

J

K

K : Va output V. Adj resistor

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LG Electronics/DND QA Gr

Power section block diagram(2) AC Input 100~265Vac

STST-BY TINY 255P PFC UC 3854

Auxiliary power TINY 255P

15V 15V PRIMARY SIDE

5V

SECONDARY SIDE PFC BOARD

380V 380V

DC-DC BOARD

StSt-by Auxiliary power

P.F.C

Multi. Power

U-com Vcc supply.

Output voltage :5.2V

PFC,Va PFC,Va,Vs Va,Vs conrtol IC Vcc supply. Output voltage:16V Power factor improvement (power harmonic spec) Each power board input power (Pre - regulator) Output voltage :380V (voltage adjustment) Module’s s IC Vcc supply VSC board & Module Vctl : 5V (module conrol board Vcc) Vcc) Vdri : 5V (module drive IC Vcc) Vcc) Vcc1 : 6V (VSC board Vcc) Vcc) Vcc2 : 12V (VSC board Vcc, Vcc)) Vcc, fan Vcc Vsound : 30V (audio Amp Vcc) Vcc)

Address Power

(X-board) Module section Address power supply (X Output V :65~72V(V. Adj.: marked V in module)

Sustain Power

Module section Sustain power supply (X(X-board) Output V. :170~185V(V. Adj:marked Adj:marked V in module

5V Multi power Fly back type STRSTR-F6668B

Va power Resonant type UC 3863

5V 6V 12V 12V 30V V 30

Va 65~72V

Vs power Vs Resonant type 170~185V UC 3863 13

13/47

LG Electronics/DND QA Gr

Power section block diagram(3) PFC BOARD AC IN:100~265Vac

∼

F8301

ST-BY 5V

VSC BOARD

S-AMP Vcc 6V 30 V

Vcc 12 V

FAN 12V

AC ON 검출 Normal highHIGH,비정상 LOW

LINE FILTER

DC-DC BOARD

ST-BY power board MAIN SWITCH

F8302 ∼

D8203

Rush.CTL From DC-DC

IC8201 TNY-255

MULTI power board

T8201 TRANS

IC8801 STRF668B

Auxiliary power board IC8202 TNY-255

P.CTL FROM U-COM

D8303

T8202 TRANS

IC801 UC3853

IC8806 SI120S 12 SW REG

MODULE CONTROL BOARD 5V

VA power board Q8401,Q8402 2SK2879

PFC power board T8301,T8302 Q8303,Q8304 PFC TRANS FET PFC CONTOL PACK P8301,P8302

T8801 Multi TRANS

IC8804 SI050S 5 SW REG

IC8631 UC3863

5V T8401 VATRANS

IC8602 IR2113

VR8401

VA 65~80V

VA CONTOL PACK P8601,P8602

VS power board

VR801

Q8501~4 2SK2879

PFC output V:380V (dc-dc power’s for input) Auxiliary power :16V (control pack Vcc supply)

IC8101 UC3863

Note: output voltage adjustment 1.VR801 : PFC output V :380V 2.VR8401 :VA V. Adj :marked V on panel 3.VR8501:VS V. Adj : marked V on panel

T8501~3 VS TRANS IC8102 IR2113

VR8501

VS CONTOL PACK P8101,P8102

VS 165~185

MODULE DC-DC BOARD

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LG Electronics/DND QA Gr

Power section block diagram(4) U-COM Main s/w on AC det U-COM Vcc supply

Nor Abnor

abnormal

normal

St-by power on Relay on

RL ON

PFC on Control board VSC board Vcc supply

MULTI power on

Va supply Vs supply

Va power on Vs power on

5V monitor

Nor Abnor abnormal normal Va,Vs ON

U-com detect protect circuit Fan lock

AC det : black-out detect circuit 5V monitor : module 5V for detect Fan lock :fan function check

protect circuit detect Va,Vs: ovp,ocp Vs discharge circuit

abnormal => ST-BY mode Power board itself protect circuit Va, Vs power overvoltage protect circuit(ovp) Va, Vs power overcurrent protect circuit(ocp) Va,Vs, discharge circuit defect abnormal =>only Vs.Va power off

Nor Abnor abnormal normal

Va power off Vs power off

Va,Vs ON

Relay off

RL ON

15 15/47

LG Electronics/DND QA Gr

Ⅲ. Screen defect diagnosis 1. No image in the specific area (see the below pictures ) 1) Check the related X B/D’s power connector. 2) Check the signal cable between Controller B/D & the related X B/D. 3) Replace X B/D

※ relation screen & X B/D screen

X Board

top left 3/10

↔

X Top-right / Bottom-left B/D

center top 2/5

↔

X Center Top B/D

top right 3/10

↔

X Top-left / Bottom-right B/D

bottom left 3/10

↔

X Top-left / Bottom-right B/D

center bottom 2/5

↔

X Center Top B/D

bottom right 3/10

↔

X Top-right / Bottom-left B/D

※case

i) Top left

iv) Bottom left

ii) Center top

iii) Top right

vi) Bottom right

v) Center bottom image Non-image 16/47

16 LG Electronics/DND QA Gr

2. No image by Data COF. (one Data COF is totally or partially not displayed) 1) It is mainly caused by X B/D’s power connector. 2) Check the connector between that Data COF & X B/D. 3) When Data COF has defect, replace the related X B/D

※ cases ( beside below examples, any out of 20Data COF can be occurred)

ok Partially displaying Non-image

※ Data COF IC check

Resistance ②

Set ① pattern( GND ) to ANODE, ② Pattern (resistance joint part ) to CATHOD, Test diode forward and backward. ① GND

17 17/47

LG Electronics/DND QA Gr

3. Data COF IC unit error 1) As pictures below, this is caused by the clock error of Data COF IC 2) With , , , check Data COF connector and replace the X B/D. 3) With , , check the connector between CTRL B/D & X B/D and replace X B/D or CTRL B/D.

※ cases

One IC error in one COF

Two every-second IC error in one COF

< case 2>

< case 3>

4 IC errors in one COF



Data COF IC unit error in the whole X B/D



Data COF IC unit error in the whole screen.

18 18/47

LG Electronics/DND QA Gr

4. Regular vertical line with one or more Data COF IC 1) It is mainly caused by X B/D output terminal buffer’s output error. When two Data COF ICs have regular vertical lines, it means the data transfer from Controller B/D to X B/D has an error. 2) Check the related X B/D connector. 3) Replace that X B/D or CTRL B/D

※ relation between screen & X B/D Screen

X Board

top left 3/10

↔

X Top-right / Bottom-left B/D

center top 2/5

↔

X Center Top B/D

top right 3/10

↔

X Top-left / Bottom-right B/D

bottom left 3/10

↔

X Top-left / Bottom-right B/D

center bottom 2/5

↔

X Center Top B/D

bottom right 3/10

↔

X Top-right / Bottom-left B/D

※ case Partial error or total error with One or more ICs defect.

19 19/47

LG Electronics/DND QA Gr

6. Regular vertical lines in the whole screen. (mainly in one specific color, regular line is flicking) 1) This problem is related to CONTROL B/D. 2) Replace CONTROL B/D

※ case

Regular vertical lines in the whole screen

7. Vertical Data copy 1) It possibly happens when scan wave does not form properly. 2) Replace Y B/D

※ case

< pattern supposed to display >







20 20/47

LG Electronics/DND QA Gr

8. One or more vertical lines in the screen. 1) Irregular vertical line is not related to Controller B/D or X B/D. 2) It is mainly caused by the followings open(or short). - Panel itself defect - DATA COF FPC attached to panel is open or short. - DATA COF attached to panel itself defect

※case

not always like this. There can be several lines in ¼ area. It can be seen on the both side, right and left. The area is sometimes over ¼.

9. One or more horizontal lines in the screen. 1) Irregular vertical line is not related to Controller B/D or Y B/D. 2) It is mainly caused by the followings open(or short). -Y FPC connector ⇒ reinsertion - Open because of Y DRV B/D’s connector dry joint ⇒ Y DRV B/D replacement - Panel itself defect - Y FPC attached to panel itself is open or short

※case

Not always like this. There can be several horizontal lines

21 21/47

LG Electronics/DND QA Gr

10. Input signal pattern is displayed but the whole brightness of the screen is dark. 1) It happens when Z B/D is not operating well. 2) Check whether Z B/D’s power connector is plugged . 3) Check whether the signal connector between Controller B/D & Z B/D is plugged. 4) Replace Z B/D or controller B/D.

11. In full white pattern, foreign color is displayed or in full black pattern, mis-discharge is partially occurred. 1) Check the slope & waveform of Y B/D set up, set down. 2) Check the slope of Z B/D’s ramp waveform 3) Measure each B/D’s output waveform by over 200MHz oscilloscope and compare it to the below picture. it is possible to control Y B/D’s setup slope by adjustinng VR2, setdown slope by VR1 and Z B/D’s ramp slope by VR1 - Y B/D measurement point : B61 ( SUS_UP OUTPUT ) - Z B/D measurement point : B61 ( SUS_OUT ) 20±5㎲ Vset-up ( 200V~240V)

0V

3㎲ ±2㎲

Vs 전압 (170 ~ 185V)

10V 140㎲

Vsc 전압 ( 90~110V)

170±5㎲

Vs 전압 (170 ~ 185V) 0V

23㎲

< Z Ramp voltage wave >

< Y Sustain voltage wave>

22 22/47

LG Electronics/DND QA Gr

12. In full white pattern, the brightness is getting darker toward the center. 1) It happens with Z B/D’s ramp waveform 2) Check the connection between CTRL B/D and Z B/D’s signal cable. 3) Replace Z B/D.

※ case

13. A specific brightness of one color is not clear. 1) Check CTRL B/D’s input signal connector. 2) Replace CTRL B/D.

23 23/47

LG Electronics/DND QA Gr

Ⅳ. NonNon-picture Defect diagnosis. No image or same symptom when power off or black pattern. 1) Check CTRL B/D’s LED(D1~D4). 2) Check the power or signal cable inputting into CTRL B/D. 3) Check X B/D, Y B/D and Z B/D’s power connector. 4) Check the connector between CTRL B/D and X B/D, Y B/D, Z B/D respectively. 5) Measure each X, Y, Z B/D’s output waveform with over 200MHz oscilloscope and compare it to the below picture to detect the defect and replace that. - Y B/D measurement point :B61 ( SUS_UP OUTPUT ) - X B/D measurement point : Top-right ( TP2 ), Top-center ( TP3 ), Top-left ( TP4 ) Bottom-right ( TP4 ), Bottom-center ( TP2 ), Bottom-left ( TP2 ) : VA_OUT 6) Test data(X) COF IC. 7) Replace Controller B/D

V_SYNC

amplified

< Y B/D output wave - 1 Frame >

< Y B/D output wave (amplified) - 1 SF >

24 24/47

LG Electronics/DND QA Gr

< Z B/D output wave - 1 FRAME >

< Z B/D output wave (amplified) - 1 SF >

< X B/D output wave - 1 FRAME >

< X B/D output wave - amplified >

25 25/47

LG Electronics/DND QA Gr

ISM Mode ISM Mode (Image Sticking Minimization Mode) ISM Mode (Image Sticking Minimization Mode) What is ISM Mode?

Peak Brightness(%)

If display the still image for a long time, module is damaged, so to avoid this phenomenon the brightness starts declining after 5 minutes display, and after 15 minutes, the brightness is decreased up to 20%.

100 90 80 70 60 50 40 30 20 10 0 1

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19 20

TIME(minutes) ISM operation condition 1. minimum deviation is 0.36% of the total screen size and it lasts for 5 minutes 2. Regardless of time, it does not operate if pattern deviation is under 0.36%

26 26/47

LG Electronics/DND QA Gr

Power PCB Voltage Adjustment TP5 GND



When replacing PDP module & power board, Be sure to adjust Power Ass’y voltage.

VA Adjust TP6 VA VR8401

VS Adjust VR8501 TP3 GND

TP4 VS

DMM ++

PFC +

1. PFC adjustment

PFC -

-. Select 100% White Pattern signal and warm it up enough. -. Connect DMM with TP PFC+ and TP PFC – (GND). -. adjust VR801 to 380V (within ± 1V ).

380V ± 1V VR801

2. Va adjustment -. Connect DMM + terminal with P814 #1 Pin. -. Turn VR8401 (Va Adj) to adjust the voltage on DMM to Va voltage value marked on panel bottom- right label. (allowable error : ± 0.5V )

PFC PACK

3. Vs adjustment -. Connect DMM’s + terminal with P803 # 9 Pin. -. Turn VR 8501 (Vs Adj )to adjust the voltage on DMM to Vs voltage value marked on panel bottom-right label.

27 27/47

LG Electronics/DND QA Gr

Power Supply Section

Power Power & & no no Raster Raster

AC AC input input check check (220V) (220V)

Connection Connection Plug Plug with with set set

When When Main Main S/W S/W ON, ON, ST-BY ST-BY LED LED ON ON check check (RED) (RED)

AC AC Line Line Fuse Fuse check check

When When SUB SUB S/W S/W on, on, LED LED GREEN GREEN check check

PFC PFC Board Board R8301,R8302 R8301,R8302 R8303 R8303 OPEN OPEN check check

R8301,R8302,R8303 R8301,R8302,R8303 replacement replacement

R8538, R8538, R8539,R8540 R8539,R8540 OPEN OPEN check check

FAN FAN function function check check

5V 5V MONI, MONI, 5V 5V CTL CTL output output check check

VS, VS, VA VA PACK PACK Function Function check check

Controller Controller Board Board VS VS ON ON check check

Controller Controller Board Board replacement replacement

each each Connector Connector & & connection connection check check

28 28/47

LG Electronics/DND QA Gr

Sound Section

Connector Connector between between SP SP & set check & set check

Sound Sound power power (P806A,B) (P806A,B) Cable connection Cable connection check check

IC601 IC601 (MSP3401) (MSP3401) check check

IC603 IC603 (LA4282) (LA4282) check check

Sound Sound terminal terminal Voltage Voltage check check (32V) (32V)

F8811 F8811 Fuse Fuse Open Open check check

Input Input jack jack check check (25Pin cable L,R input (25Pin cable L,R input check) check)

Speaker Speaker connection connection line line check check

29 29/47

LG Electronics/DND QA Gr

Video Signal Section Abnormal Abnormal screen screen

PC PC signal signal input input

IC501 IC501 (( JAGASM JAGASM check check ))

IC203 IC203 (( CXA2101 CXA2101 )) check check

IC901 IC901 (SII (SII 150 150 )) check) check)

IC406 IC406 (( ADV ADV 7123 7123 )) check check

P901 P901 (( 21 21 Pin Pin cable cable )) check check

IC404 IC404 (( FLI2220 FLI2220 )) check check

IC403 IC403 (( FLI2220 FLI2220 )check )check

IC201 IC201 (VPC3230 (VPC3230 )) check check Input Input jack jack & Connector & Connector check check

30 30/47

LG Electronics/DND QA Gr

Ⅴ. One Point Service Guide

No power

X CANVAS

X CANVAS

normal

No power ( LED is not on in STST-BY) AC AC power power voltage voltage check check

Main Main Power Power S/W S/W check check

F8301 F8301 Fuse Fuse (15A) (15A) check check F8301 F8301 Fuse Fuse (15A) (15A) replacement replacement F8302 F8302 Fuse Fuse check check

31 31/47

LG Electronics/DND QA Gr

OnOn-andand-off Disappearing or error while watching X CANVAS

X CANVAS

normal

Intermittent image disappearing. LED’s LED s green

Y--Board Cause YCause :: Y Y Board VR301 VR301 waveform waveform adjustment adjustment defect defect Y--Board Troubleshooting YTroubleshooting :: Y Y Board VR301 VR301 Adjust Adjust See See the the next next instruction(improved instruction(improved since since Dec,2001) Dec,2001)

32 32/47

LG Electronics/DND QA Gr

Auto power off Automatic off as soon as power is on ( Protect ) X CANVAS

X CANVAS

normal

Automatic off after 2~3 seconds ( Protect )

Cause : X X-Board internal IC Short

Troubleshooting: replace the defective XX-Board & DCDC-DC Board *. Remove X – Board power supply connector to check whether power is off.

X - Board

33 33/47

LG Electronics/DND QA Gr

Auto power off Automatic off as soon as power is on ( Protect ) X CANVAS

X CANVAS

normal

Automatic off after 2 – 3 seconds ( Protect )

Cause : Y – Board 220V Line Short

Troubleshooting : Y – Board replacement *. Remove Y – Board power supply connector to check Whether power is off.

34/47

Y - Board 34 LG Electronics/DND QA Gr

Address Bar(Vertical) X CANVAS

X CANVAS

Address Bar. ( Red Pattern reception )

Address Bar. (Gray Pattern reception)

X CANVAS

XX--Board Board COF COF Drive Drive IC IC check check

X-Board X-Board Connector Connector check check X-Board X-Board replacement replacement

Module Module (( Panel Panel )replacement )replacement

35 35/47

LG Electronics/DND QA Gr

Address Bar(Vertical) X CANVAS

X CANVAS

Intermittent image disappearing. LED is green

image distorted (occurring twice a day)

X CANVAS

XX--Board Drive IC Board COF COF Drive IC check check

X-Board X-Board Connector Connector check check X-Board X-Board replacement replacement

Module Module (( Panel Panel )replacement )replacement

36

36/47

normal LG Electronics/DND QA Gr

Address Bar(Horizontal) X CANVAS

X CANVAS

One horizontal line in the top part

normal

YY--Board Y&Y YDrive Board Board Connector Connector Board & Y--Drive check check

Y-Drive Y-Drive Board Board (( Top Top )) Drive Drive IC IC check check

Y-Drive Y-Drive Board Board replacement replacement

37 37/47

LG Electronics/DND QA Gr

Address Bar(Horizontal) X CANVAS

X CANVAS

normal

Single horizontal bar in the bottom

X CANVAS YY--Board Y--Drive YDrive Board Board Connector Connector Board & &Y Y check check

Y-Drive Y-Drive Board Board (( Bottom Bottom )) Drive Drive IC IC check check

Y-Drive Y-Drive Board Board replacement replacement

38 38/47

LG Electronics/DND QA Gr

Address Bar(Horizontal) X CANVAS

X CANVAS

normal

Image is on and off. LED’s LED s green

YY--Board Y--Drive YDrive Board Board Connector Connector Board & &Y Y check check

Y-Drive Y-Drive Board Board (( Top Top )) Drive Drive IC IC check check

Y-Drive Y-Drive Board Board replacement replacement

39 39/47

LG Electronics/DND QA Gr

Address Bar(Horizontal) X CANVAS

X CANVAS

normal

Green dot line on the screen

VSC VSC Board Board & & Controller Controller Board Board Connector Connector check check

Controller Controller Board Board check check

Controller Controller Board Board replacement replacement

40 40/47

LG Electronics/DND QA Gr

Address Bar(Vertical) Address Bar ( Vertical ) & partial no-picture X CANVAS

X CANVAS

Central top 4/10 of the screen with vertical bar

Central top 4/10 of screen with no-picture

X CANVAS

related related X-Board X-Board power power supply supply voltage voltage check check related related X-Board X-Board Connector Connector check check related related X-Board X-Board & & Controller Controller Board Board Connector Connector check check related related X-Board X-Board replacement replacement Module Module (Panel (Panel )) check check

normal

41 41/47

LG Electronics/DND QA Gr

Address Bar(Vertical) Address Bar ( Vertical ) & partial no-picture X CANVAS

X CANVAS

Bottom left 3/10 of the screen with vertical bar

Bottom left 3/10 of the screen with no-picture

Related Related X-Board X-Board power power supply supply voltage voltage check check

X CANVAS

Related Related X-Board X-Board Connector Connector check check Related Related X-Board X-Board & & Controller Controller Board Board Connector Connector check check Related Related X-Board X-Board replacement replacement

Module Module (Panel (Panel )) check check

42 42/47

normal

LG Electronics/DND QA Gr

Address Bar(Vertical) Address Bar ( Vertical ) & partial no-picture X CANVAS

X CANVAS

Bottom right 3/10 of the screen with no-picture

Bottom right 3/10 of the screen with vertical bar related related X-Board X-Board power power supply supply voltage voltage check check

X CANVAS

Related Related X-Board X-Board Connector Connector check check Related Related X-Board X-Board & & Controller Controller Board Board Connector Connector check check Related Related X-Board X-Board replacement replacement Module Module (Panel (Panel )) check check 43/47

normal

43 LG Electronics/DND QA Gr

Address Bar(Vertical) Address Bar ( Vertical ) & partial no-picture X CANVAS

X CANVAS

Central bottom 4/10 of the screen with vertical bar

Central bottom 4/10 of the screen with no-picture

Related Related X-Board X-Board power power supply supply voltage voltage check check

X CANVAS

Related Related X-Board X-Board Connector Connector check check Related Related X-Board X-Board & & Controller Controller Board Board Connector Connector check check Related Related X-Board X-Board replacement replacement

Module Module (Panel (Panel )) check check 44/47

normal

44 LG Electronics/DND QA Gr

Address Bar(Vertical) Address Bar ( Vertical ) & partial no-picture X CANVAS

X CANVAS

Top right 3/10 of the screen with vertical bar

Top right 3/10 of the screen with nono-picture

Related Related X-Board X-Board power power supply supply voltage voltage check check

X CANVAS

Related Related X-Board X-Board Connector Connector check check Related Related X-Board X-Board & & Controller Controller Board Board Connector Connector check check Related Related X-Board X-Board replacement replacement

Module Module (Panel (Panel )) check check 45/47

normal

45 LG Electronics/DND QA Gr

Address Bar(Vertical) Address Bar ( Vertical ) & partial no-picture X CANVAS

X CANVAS

Top left 3/10 of the screen with nono-picture

Top left 3/10 of the screen with vertical bar Related Related X-Board X-Board power power supply supply voltage voltage check check

X CANVAS

Related Related X-Board X-Board Connector Connector check check Related Related X-Board X-Board & & Controller Controller Board Board Connector Connector check check Related Related X-Board X-Board replacement replacement

Module Module (Panel (Panel )) check check 46/47

normal

46 LG Electronics/DND QA Gr

Appendix Model by market Model name MN-60PZ10 MU-60PZ10 MP-60PZ10 MT-60PZ10 MZ-60PZ10

Market For Korea For N-America For Latin N-EU EU

로고 LG Zenith LG LG LG

Input signal NTSC-M NTSC-M PAL-N/M,NTSC-M PAL,SECAM,NTSC-M,NTSC4.43 PAL,SECAM,NTSC-M,NTSC4.43

STB ○ × × × ×

Input voltage 220V 120V 110~240V 110~240V 200~240V

U-COM adjustment mode Option No. For Korea, Latin Option No. 1 2 3 4 5

Model MN-60PZ10 MU-60PZ10 MP-60PZ10 MP-60PZ10 MP-60PZ10

Market Korea America(Zenith) Brazil Latin Latin

System NTSC NTSC 3 system 3 system 3 system

Remocon NEC Zenith NEC NEC NEC

Language Korean(K) English(E) Portuguese(P) Spanish(S) English(E)

Model MZ(MT)-60PZ10 MZ(MT)-60PZ10 MZ(MT)-60PZ10 MZ(MT)-60PZ10 MZ(MT)-60PZ10

Market EU(N-EU) EU(N-EU) EU(N-EU) EU(N-EU) EU(N-EU)

System 4 system 4 system 4 system 4 system 4 system

Remocon

Language English(E) French(F) German(D) Spanish(S) Italian(I)

Model MT-60PZ10 MT-60PZ10

Market China China

System 4 system 4 system

Remocon

Language Chinese(K) English(E)

For Europe Option No. 1 2 3 4 5 For China Option No. 1 2

47 47/47

LG Electronics/DND QA Gr

PRINTED CIRCUIT BOARD

POWER(TOP)

MAIN(TOP)

POWER(BOTTOM)

MAIN(BOTTOM)

CONTROL(BOTTOM) POWER PFC(BOTTOM)

A/V(TOP)

POWER CONTROL(TOP)

POWER CONTROL(BOTTOM) A/V(BOTTOM)

POWER MAIN(BOTTOM)

POWER VA(BOTTOM)

POWER VS(BOTTOM)