LG Plasma PDP Schematic

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

What is Plasma

1.

Plasma ?

Plasma ?

Plasma is by far the most common fo rm 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

Solid

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 ……..

Ex.) Lightning, Aurora, Nebula, Flames, Neon Sign, Solar core

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⇒

⇒

Liquid

⇒⇒

⇒

⇒

Liquid

⇒⇒

⇒

⇒

⇒⇒

⇒

⇒

⇒⇒

Gas

Gas

⇒

⇒

⇒⇒

⇒

⇒

⇒⇒

Ion, Electron : The 4th State of Matter

Ion, Electron : The 4th State of Matter

2

LG Electronics

Plasma ?

Plasma ?

Plasma --

Plasma

The 4th State of Matter

The 4th State of Matter

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3

LG Electronics

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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4

LG Electronics

2.What is Plasma Display Panel(PDP)?

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, know n as pixels, which ar e composed of 3 sub-pixels, corresponding to the colors
Red, Green and B lue. Gas in a pl asma state is used to react with phosphors in eac h 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

(1) How does it work?

Gas Discharge

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YUV Genera te

(MgO)

Visible Illuminate

Display

5

LG Electronics

(2) The structure and mechanism of Panel

< Upper Panel > < Lower Panel >

ITO

Electrode

(MgO)

Protection

Fluorescent

(R,G,B)

ITO Electrode

Barrier Rib

BUS

Electrode

W/B

Dielectric

Electrode

Visible Light

Plasma

Plasma

UV light

Fluorescent

Bus Electrode

Barrier Rib

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Address Electrode

6

Glass

LG Electronics

(3) Flow chart of a PDP fabrication

Front Glass

Sustain Electrode

Bus Electrode

Dielectric Layer

Protection Layer

(ITO)

(Ag,Cu,

Au)

(PbO)

(MgO)

Sealing

Rear Glass

Address

Electrode

Dielectric Layer

White Back

(Screen Printing)

Barrier Lib

(Sand Blasting)

Phosphor layer

(Ag, Cu)

(PbO)

(130㎛㎛㎛㎛)

(R, G, B)

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Exhausting &

Filling Gas

Aging

PDP Panel

(Xe+He/Ne/Ar)

7

LG Electronics

(4) Advantages of PDP Display

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8

LG Electronics

(5) Comparison of Display devices

Rear

Projection

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9

LG Electronics

(6) Display Market Segments

PDA/Car Nav.

Potable TV

EL

Notebook

PC

FED

LCD

PC Monitor / TV

CRT

Public

Screen

PDP

Projection

(Rear CRT/LCD)

Jumbo
Screen

Projector

* FED : Field Emission Display
** EL : Organic Electro Luminescent Diode

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10” 20” 30” 40” 50” 60” 70”

10

LG Electronics

(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

Commercial Shop Public Display

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Information Board Conference Room

Sports Center

11

LG Electronics

3. LG PDP Display(TV & MNT)

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)

(1) PDP Display System Structure(1)

External Input

(Right-Audio Left-Video

Component Audio

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Audio Input

Right - Left

RGB-PC/DTV

Y, PB, P

DVD ( 480i / 480P )

R

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

Composite
Video
(Input output)

12

Set Top Box ( HD STB )

LG Electronics

MN-40PA10 (PDP) connection

MN-40PA10 ＋＋＋＋ RN-BA10(Analog STB)

RGB-PC input

(VGA, SVGA)

PC

RGB-DTV input

(480P/720P/1080i)

RGB INPUT/CONTROL
Audio OUTPUT Right/Left

25Pin D-Sub.

Output

(Right-Audio,Left-Video)

S Video input

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ANT IN

RGB-PC
/ DTV output

COMPONENT 2
( 480P/720P

1080i )

DVD/DTV INPUT

Component 1
( 480i input )

input1,2

(R-voi ce, L-image)

13

Set Top Box ( HD STB )

DVD

VCR

LG Electronics

(2) Accessories(Option Items)

Wall Mount(Fix) (AP-40WA10) Wall Mount(Tilt)(AP-40WA20M) Desk Top Stand(AP-40DA 10)

Floor Stand(AP-40FA10)

* There are Ceiling, Pole & Rack type as well as Above accessories(Refer to Catalogue)

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Floor Stand(Moving)(AP-40FA20M)

14

SPEAKER(AP-40SA10)

LG Electronics

Description Model Name

Description

Model Name

PLASMA Monito r

Desktop Stand

Wall Mounting

Bracket

Tilt

Wall Mounting

Bracket

MN-40PA10

AP-40DA10

AP-40WA10

AP-40WA20M

Ceiling

Mounting

Bracket

Speaker

Speaker Stand

Floor Type

Speaker Stand

AP-40CA10

AP-40SA10

AP-40SA10D

AP-40SA10F

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Floor Type

Stand

AP-40FA10

15

PDP Tuner

RN-BA10

LG Electronics

(3) External Connection Terminals

Terminal

RGB IN/Control

External SPK

AC Input

1.40”/42”

R L

2. 60”

External Input

A Video

Cord Length

3000 mm
5000 mm
2500 mm

(+) (-) (+) (-)

R

Ext. SPK(8Ω)

Y Cb/Pb Cr/Pr

DVD In/DTV In2

L

R L

Audio IN

RGB In/Control

PC In/DTV In 1

(RGB/HV)

PC In/DTV In 1

(RGB/HV)

R L

Audio Input

RGB In/Control

A Video

R L

External Input

S Video

Y Cb/Pb Cr/Pr

DVD In/DTV In 2

(+) (-) (+) (-)

R

Ext. SPK(8Ω)

L

AC Input

AC Input

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16

LG Electronics

(4) Fixing Points

4-1)MP-40PA10(40” PDP)

★

★1

★★

★

★3

★★

★

★4

★★

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

★★

★

★6

★★

★

★7

★★

★

★2

★★

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★

★5

★★

D/T,F/S Fixing Points

17

★

★8

★★

★

★10

★★

LG Electronics

4-2)MN-60PZ10(60” PDP)

★

★1

★★

★

★2

★★

★

★7

★★

★

★8

★★

★

★9

★★

★

★10

★★

Pre-Fixing Point

Fixing Points

★

★12

★★

★

★13

★★

★

★14

★★

★

★15

★★

- Fix with M8 Screw

- Total 16 fixing points

(★ ; Wall Mount Holder or

FLOOR STAND Fixing)

- ★1,★3 ★4,★6 : For SPK

★

★4

★★

★

★5

★★

★

★3

★★

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★

★11

★★

D/T,F/S Fixing Points

18

★

★16

★★

★

★6

★★

LG Electronics

5-1)MONITOR PART

9

8

7

10

(5) EXPLODE VIEW

6

1

5

4

3

2

1

2
3
4
5

6
7
8

9

10

Cabinet
Filter

Supporter,Filter
Module Assy
Line Filter

PCB ASSY, VSC
PCB ASSY, POWER 3501V00027E
Supporter,Vertical
Back Cover Assy
Plate, Rear A/V

NAMENO.

Part Number

3091V00288C

3790V00266B

6348Q-A002A
3501V00028A

6871VMM602B

4980V00164B/C

3809V00212C
3301V00005A

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19

LG Electronics

5-2)SET TOP BOX ASSY

45

3

1

2

NO.

1

2

3

4

5

NAME Material

Panel,Control ABS

Panel, Front HIPS

Case, Bottom SECC 1.0t

Case, Rear SECC 1.0t

Case, Top SECC 1.0t

Part Number

3720V00080B

3720V00079A

3110V00101B

3110V00111C

3110V00102A

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20

LG Electronics

5-3) PSU & VSC Board

VSC

(Video

Scan
Con­verter)

PSU

(Power

Supply
Unit)

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21

LG Electronics

4p 8p

CON3

Y-Board

(Scan)

CON304

PDP MODULE

CON302 CON301

6p 6p

CON2

(Upper X-Board)

CON300

PDP

8P

Control

Board

40P

CON100

12P

CON102

(6) Inter-Connection G uide

Z-Board
(Sustain)

CON102

8P

CON101

12P

SPEAKER

P007A

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4P

P006A

6p

PDP MODULE

(Lower X-Board)

Local Key Board

Local Key Board

P004A

7P

7p

VSC

PD501

40P

4P
4P

P007A

12P

6P

7P

P003A

P002A

P005A

P003A

22

8P
6P

6P
4P

12P

7P

6p

P801

P814
P813

P810

P809

P815

CON303

4p 8p

P802

P803

POWER

CN801

2P

P801P802

POWER SW.B/D

P812

6P

P811

6P

P807

8P

EMI pack

2P

LG Electronics

(7) Block Diagram

R/L

(Spk.)
V/R/L

DVD

PC

Control
& RGB/HV,
RL(25pin)

ANT

V/R/L
DVD

PC

DTV

PC/DTV

Video

Scan

Converter

&

Audio Amp.

Ext. I/F

(VSC)

TD-620

Set Top

Box

STB

Power

DATA

( 41PIN )
RGB(24bit)

V

SYNC

H

SYNC

BLANK
DISPEN

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

Power
Supply

(AC-DC,

DC-DC)

Image

Processing

Logic

&

Scan-

Controller

(Control)

+5Vcntl

VS(180V)

VA(80V)

V set-up
(275V)

VSb(75V)

+5vdrv

+15vdrv

+5V

+15V

COMMON
SUSTAIN
DRIVER

(Z)

V

S

+5V

+15V

ADDRESS DRIVER

(X)

PANEL

640XR,G,BX480

ADDRESS DRIVER

(X)

PDP Module

V

A

SCAN
SUSTAIN
DRIVER

Vsb

+5V
+15V

V

A

(Y)

+5V

+15V

V

V

S

Setup

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AC Input

EMI Filter

AC Input

23

LG Electronics

DS101

D-sub

25

D-sub

15

DS102

P101
V/R/L

P102
DVD

P601
L/R

STB-POWER
VSC DET/POWER
HDSTB_DET
STB_SCL/SDA
ANA_STB_DET

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

5

Display Processor & Scan Rate Converter

(Format Converter)

Converts Interlace into Progressive

15KHz 31KHz(2H, 1V)

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

5

DTV-Y/Pb/Pr (A)

3

1

Y,Cb,Cr

3

CVBS

(A)

(A)

IC203

IC203

VPC3230

VPC3230

Decoder

Decoder

80Pin

80Pin

8

8 LU0-7

Comb Filter & Video Processor

Separates CVBS signal into Y,U &V

AV/DVD/DTV2

STB/PC/DTV1

7

TV-Y/U/ V/HVs

De-interlace

De-interlace

CHR0-7

(D)

(A)

4

IC204

IC204

SDA9410

SDA9410

&

&

D/A

D/A

100Pin

100Pin

IC604

LA7222

(Audio S/W)

IC002

24C08

OSD_R/G/B/YS

IC001

IC001

M37270

M37270

EEPROM

EEPROM

µ-Com

µ-Com

I²C Bus

CAX-HS/VS

IC303

IC303

CXA2101AQ

CXA2101AQ

Video&Chroma

Video&Chroma

80Pin

80Pin

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

IC602

IC602

CXA2022S

CXA2022S

(Tone Control)

(Tone Control)

4

IC403

2M

SDRAM

2

OSD_HS/VS

2M SDRAM

A0-10

D0-16

16

3X8

(R/G/B)(D)

IC304

IC304

THS8083

THS8083

100Pin

100Pin

IC603

IC603

LA4282

LA4282

Audio Amp.

Audio Amp.

(12Wx2)

(12Wx2)

MP--40PA10 VSC Board

2

HS/VS_OUT

IC501

2

74F541

IC402

D16-31

16

11

DOR0-7

IC401

IC401

MX88L284

MX88L284

3X2M

3X2M

Scan converter

Scan converter

208Pin

208Pin

Chip for flat panel display application

VGA XGA(scale up/down)

8

8

8

DOG0-7

DOB0-7

2

PVS/PHS_OUT

IC502

74F541

IC503

74F541

Buffer

IC504

74F541

8

PAR0-7

8

PAG0-7

PAB0-7

8

PDP Module

Triple 8Bit, 80MSPS, 3.3V Video&Graphic Digitizer

with Digital PLL

Generates D-R/G/B(24bit) signal from Analog RGB

Lout

Rout

P007A
(SPK. Jack : 8Ω)
10x10Wrms

PD501
(41Pin)

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24

LG Electronics

VSC Board Block

TV-Y/U/V/HS/VS

PC-R/G/B/HS/VS

Y/Pb/Pr
( 480 p )

3X8

( R/G/B ) ( D )

CVBS

Y,Cb,Cr
( 480 i )

IC203

IC203

VPC3230

VPC3230

Decoder

Decoder

80 Pin

80 Pin

De-interlace &

De-interlace &

LUM0-7
CHR0-7
LLC1/2

IC204

IC204

SDA9410

SDA9410

D/A

D/A

100 Pin

100 Pin

IC303

IC303

CXA2101AQ

CXA2101AQ

Video & Chroma

Video & Chroma

80 Pin

80 Pin

3 CXA-R/G/B

IC304

IC304

THS8083

THS8083

100 Pin

100 Pin

IC401

IC401

MX88L284

MX88L284

3X2M

3X2M

Scan Converter

Scan Converter

208 Pin

208 Pin

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

PD501

PD501

(41Pin)

(41Pin)

PDP

Module

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25

LG Electronics

42”/60” New VSC Board

RGBHV

5

VIDEO

SWITCH

(M52758FP)

5

RGBHV

Y/C

3

H/V

SOG

MONOSTABLE MULTIBIB.

(74LS123)

3RGB

SOG_OUT

CLAMP_AD

MEMORY

(6M-BYTE)

8bit 135Mhz ADC(3),

PLL(3), PIP,Gamma,

High order 3’rd generation Scaling

A/D CONVERTER

H

(CXA3516R)

2PLLH/CLK

SCALER

(JAG200)

H

4

H/V/DE/CLK

V

TMDS TX

(SII150)

8

21P

CVBS

YCbCr/

YPbPr

R

L

COLOR

DECODER

(VPC3230D)

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 PI P p roces sing

AUDIO

AUDIO

AMP

LA4282

(L & R)

AUDIO

SWITCH
(LA7222)

Digital Component Video

H/V/

De-Interlacer/Line Doubler

FIELD/

LLC1

4

DEINTER

-LACER

(FLI2200)

MEMORY

(4M-BYTE)

(74HCT373)

ROM

(AT29C010)

3RGB

Digital Video

Enhancer

(FLI2220)

2H/V

3Y,Pb,Pr(MNT)

MICOM

5

H/V/CLK/

HBLK/VBLK

5Y,U,V,H,V

3Y,Pb,Pr(STB)

5

RGBHV

COLOR CONTROL

&

VIDEO SWITCH

(CXA2101Q)

PORT EXP

(M62320X4)

EEPROM

X2416P

2H/V

H
V

Clamp

(GEN. CLAMP)

DISP_EN

EPLD

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

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26

LG Electronics

Power Supply Unit (40”)

C

1

HEAT SINK

CEMENT

저항

저항

저항저항

Va

Inductor

VR803
(Va)

VR802
(5V Adj.)

VR801
(32V Adj.)

Vsc

TRANS

Vsetup
TRANS

HEAT SINK

G

A

B

D

E

Multi
Drive

5V

Inductor

Multi
Inductor

MULTI­TRANS

HEAT SINK

HEAT SINK

2

3

4

VR
806
Vsc

VR
805
Vset

VR
804
Vs

F

CEMENT

CEMENT

CEMENT

CEMENT

Drive

HEAT SINK

Vs

H

Vs

INDUCTOR

TRANS

Vs

TRANS

J

HEAT SINK

I

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

<Adjustment Point>

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

CEMENT

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ST-BY

TRANS

HEAT SINK

TRANS

PFC Inductor

AC In

EMI(Line Filter) Pack

27

EMI

Power
Switch

LG Electronics

POWER BLOCK

AC Input

90Vac~265Vac

Rectifier DIODE

Rectifier DIODE

Relay

ST-BY

STR-G6100

PFC

MC33262

380V

Forward

Type

TL494

RCC Type

TL494

Half-Bridge

Type

TL494

5V

15V

5V
15V

12V
30V

Va
75V

Vs
180V

Best LG with Best Technology

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28

RCC Type

TL494

VSC
75V

Vsetup
275V

LG Electronics

PET Film with Multilayer
sputter-coatings

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

AR(Antireflection) Film
Adhesive layer

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

Adhesive layer

AR(Antireflection) Film

Electrode(Bus Bar)

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(shee t resistance = 1.1~ 1.5W) @ 45%

-.Color Control : Color Temperature & Color Reproducibility control

-.Reduce Surface Reflection

-.Enhancement of Contrast

-.Protection of PDP panel

Tempered Glass

Colored adhesive layer

Frame Printings(Screen Size)

* EMI shielding : Mesh Fiber type & Film coating Type

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29

LG Electronics

(9) PDP Tuner(Set Top Box)

SMPS Board

Interface Board

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

Top View

Back Panel(Signal Input)

Main Board

Inside

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30

LG Electronics

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

P001

Tuner

STB-CONTROL B/D

12

P

STB - MAIN

P402

P403

7P

12P

P401

10P

12P

PF01

P002

P003

10P

8P

P810S

10P

STB - POWER

8P

P870S

Power
Switch

12P

PX002 PX001 PX003

STB Interface B/D

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10P 7P

31

LG Electronics

(11) STB Block Diagram(1)

TUNER

TUNER

TV Signal

(CVBS)

DVD

A/V 1

SVHS

A/V 2

MNT

OUT

DTV2

in

Interface Board

DTV 1

IN

PC IN

(Y,Cb,Cr)

in

(R,L)

3 (VRL)

2(Y/C)

3

(VRL)

wideband video Amp(20MHz, -3dB)

(Y,Pb,Pr)

DTV
RGB/HV

PC
RGB/HV

PC Audio(Stereo)

DTV2
(R,L)

3

MNT-L/R/V

Y/C mix circuit

A/V switch featuring I

(R,L)

BA7657F

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TV Audio(SIF)

IC 201

IC 201

CXA2069Q

CXA2069Q

64pin

64pin

7input/3output

ICX 001

ICX 001

BA7657F

PC/DTV-OUT

DCF(3D)

DCF(3D)

(Digital Comb Filter)

(Digital Comb Filter)

DCF-V

1

2

DCF-C/Y

2

C BUS

AV-L/R

IC 602/3/4

IC 602/3/4

SRS block

SRS block

(option)

(option)

Single chip multi-standard

Sound processors(Dolby Virtual)

전체적인 TV음성신호 처리

PC

R/G/B

HS/VS

DTV

R/G/B

HS/VS

PC

DTV

PC-R/L

IN

2

TV-L/R

2

Mono/Stereo/Bilingual

IC 601

IC 601

MSP3401

MSP3401

80pin

80pin

P401

P402

P403

R/L

CXA2069Q
(pin 23/25)

Comb filter video processor

TV신호를 Digital Y/Cr/Cb化

Multi-standard color decoder

3

Y/U/V

2

Y/C

3OSD R/G/B/YS

3

K

IN

3

K

OUT

5

SDA-HS/VS/U/V/Y

(DTV 2)Y/U/V

3

5 DTV-R/G/B

HS/VS

Multi-Component Processor

Analog R/G/B 출력

R/G/B
Y/U/V

A/D converter

IC 301

IC 301

VPC3230

VPC3230

80pin

80pin

KEY-1

IC 001

IC 001

M37272

M37272

u-COM

u-COM

2

IC 401

IC 401

CXA2101AQ

CXA2101AQ

80pin

80pin

R/G/B化

32

8bit UVin 8bit UVout

8bit Yin 8bit Yout

8

CHROMA0-7

8

LUMA0-7

3SCL_A, SDA_B

PC/DTV

SCL-A
SDL-A

CXA R/G/B

Improv e the Image

IC 701

IC 701

LGTV1001

LGTV1001

64pin

64pin

1S-MUTE

3

3

PC-R/G/B

2

CXA HS/VS

Format converter

Interlace scanning to

Progressive scanning

3

SDA Y/V/U

2

IC 302

SDA­HS/VS

8C0-7

2

PC-HS/VS

IC 402

IC 402

BA7657

BA7657

24pin

24pin

Input select switch for high

definition display

Internal broadband RGB s/w

IC 302

SDA9410

SDA9410

100pin

100pin

8

Y0-7

1

CXA-PC

SDA-U/V/Y

3

W/F-OUT
OUT-L
OUT-R

P003

P003

(Woofer Spk.

Jack : 8Ω)
15Wrms

PDP MODUAL

2

SCL-A
SDL-A

IS 501
(25Pin
Cable)

5

R/G/B/HS/VS

LG Electronics

Parts Function

(12) Function Descriptions

Y-Board ( Scan Driver )

Z-Board(Common Sustain Driver)

X-Board ( Address Driver )

Control Board

DC/DC-2 Board

FPC(Flexible Plate Circuit)

ACF

(Asymmetric Conductive Fundamental)

Heat Sink

Connected to Scan(Y) electrode and FPC to operate Scan and Sustain
Connected to Sustain(Z) electrode and FPC to operate Sustain
Connected to lower address(X) electrode and FPC to operate Address

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

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

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 atta ch ed to absorb and radiate he at ge nerated at
Panel when operating.

COF ( Chip On Film )

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Unifying IC chip on the PCB and FPC, and it realizes simplified structure
and miniaturi z ation.

33

LG Electronics

A. Definition

(13) Definition of Defect

Item Definition

Dark Dot Non lighting Cell Defect

Flashing Cell Defect Toggles On/Off

Non-extinguishing Cell Defect Turn on always

High Intensity Cell Defect

B. Specification

Bright Dot

Dark Dot

Brighter than other cell at same color or display
other color

A zone

N
Neighboring 2 Cells
Neighboring over 3 Cells : 0

N
Neighboring 2 Cells
Neighboring over 3 Cells : 0

≤

≤

2 [cell/scn]

≤

2 [cell/scn]

≤

1

1

Foreign material at

Cell or structural

B zone

N
Neighboring 2 Cells

Neighboring over 3 Cells

N

Neighboring 2 Cells

Neighboring over 3 Cells

≤

≤

4 [cell/scn]

≤

4 [cell/scn]

≤

Cause

defect

1

: 0

1

: 0

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Flashing Dot

High Intensity Dot

N
Neighboring 2 Cells
Neighboring over 3 Cells : 0

N

≤

≤

2 [cell/scn]

≤

0 [cell/scn]

34

N

1

Neighboring 2 Cells

Neighboring over 3 Cells

N

≤

≤

4 [cell/scn]

≤

0 [cell/scn]

1

: 0

LG Electronics

SVC Precaution

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

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!!

1) X - Board COF Connector separation

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

COF Connector

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Warning

Warning

When you exchange X-Board, first you should separate COF

When you exchange X-Board, first you should separate COF

Connector. Be careful to handle it.

Connector. Be careful to handle it.

COF Connector is attached to Module. When COF Connector is

COF Connector is attached to Module. When COF Connector 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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LG Electronics

2) X - Board Connector separation

Lift up each edge of left/right. Lifted condition

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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

Pull the white LOCK as shown in arrow

Pull the white LOCK as shown in arrow.

3) Y - Board COF Connector separation

Warning

Warning

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

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37

Separate COF CONNECTOR by pulling in the left.

LG Electronics

4) Z - Board COF Connector separation

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

Warning

Warning

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

Condition in Lock part is pulled Pull COF Connector as shown in arrow.

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38

COF Connector

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

Push LOCK and pull o ut

5) Connector separation Guide

PUSH

PUSH

PUSH

PUSH

PUSH

PULL

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39

LG Electronics

6) Control Board & VSC Board Connector

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40

LG Electronics

7) Gas injection (Sealing up) condition

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Be sealed up after gas injection

Warning

Warning

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

41

Be sealed up after gas injection

LG Electronics

One Point SVC Guide

Power is On and off 2~3 minutes.

Power is On and off 2~3 minutes.

(Protection)

(Protection)

Power off in 2 ~ 3 minutes(Protection)

P301 Connector Open Check.

P301 Connector Open Check.

P302 Connector Open Check

P302 Connector Open Check

P303 Connector Open Check

P303 Connector Open Check

P304 Connector Open Check

P304 Connector Open Check

P102 Connector Open Check

P102 Connector Open Check

P3, P2 Connector Open Check

P3, P2 Connector Open Check

P005, P003 Connector Open Check

P005, P003 Connector Open Check

OK

X - Board Top Righ t Change.

X - Board Top Righ t Change.

OK

X - Board Top Left Change.

X - Board Top Left Change.

OK

X - Board Bottom Right Change.

X - Board Bottom Right Change.

OK

X - Board Bottom Left Change.

X - Board Bottom Left Change.

OK

OK

Z - Board Change.

OK

Z - Board Change.

Y - Board Change.

Y - Board Change.

VSC- Board Change.

VSC- Board Change.

PROTECT operation;

PROTECT operation;

When the load voltage is short.

When the load voltage is short.

When each voltage doesn’t work (in general)

When each voltage doesn’t work (in general)

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P006 Connector Open Check

P006 Connector Open Check

Power Board Change

Power Board Change

42

OK

VSC - Board Change.

VSC - Board Change.

Sound Output IC Short Check

Sound Output IC Short Check

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 op eratio n)

Cause : No VS voltage

L813 Coil cold soldering.

Check

Check

Open the Conne ctor 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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43

LG Electronics

HEATRUN : WHITE

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

Top Right Top Left

Bottom Right

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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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45

LG Electronics

IC14

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.

Cold Soldering

Abnorm al waveform by cold sold ering

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Normal waveform after tearing off IC pin

46

LG Electronics

Symptom Causes Countermeasure

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

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

Defective X-Board

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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47

LG Electronics

Symptom

Cause

Countermeasure

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

Check

Check

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

No 5V supply to Top right
X-Board.

Connect 5V line

Check 5V line from SMPS to X-BOARD.

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48

LG Electronics

Symptom

Cause

Countermeasure

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

Check

Check

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

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

Connect 70V line

Check 70V(Va) line from SMPS to X-BOARD.

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49

LG Electronics

Symptom

Cause

Countermeasure

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 )

No 12V supply to Top right
X-Board.

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

Connect 12V line

Connect 70V line

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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50

LG Electronics

Symptom

Cause

Countermeasure

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 )

No 12V supply to Top left
X-Board.

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

Connect 12V line

Connect 70V line

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

Symptom

Cause

Countermeasure

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

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.

Reassemble it

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52

LG Electronics

Symptom

Cause

Countermeasure

The 3/5 bottom left of screen is broken.

(BOTTOM RIGHT X-BOARD)

Check

Check

No 5V supply to bottom right
X-Board.

Connect 5V line

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

Check 5V line from SMPS to X-BOARD.

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53

LG Electronics

Symptom

Cause

Countermeasure

The 3/5 bottom left of the screen is Blank.

(Bottom Right X-BOARD)

Check

Check

No 12V supply to bottom right
X-Board.

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

Connect 12V line

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

Countermeasure

Check

Check

The 2/5 right of the screen is broken.

(Bottom left X-BOARD)

No 5V supply to bottom left
X-Board.

Connect 5V line

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

Symptom

Cause

Countermeasure

The 2/5 right part of the screen is blank.

(Bottom left X-BOARD )

Check

Check

No 12V supply to bottom left
X-Board.

Connect 12V line

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

Symptom

Cause

Countermeasure

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.

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

Reassemble it.

Reassemble it.

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57

X-BOARD BOTTOM LEFT CONNECTOR
OPEN.

LG Electronics

Examples

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58

LG Electronics

Symptom

Cause

Countermeasure

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

Check

Check

P13 CONNECTOR contact point inferior CHECK.

Connector(P13) is OPEN or
Connecting condition is bad

Reassemble P13.

P13 CONNECTOR SIGNAL CHEK.

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59

P13 CONNECTOR

LG Electronics

Symptom

Screen is broken and has the vertical/horizontal bar.

Cause

VSC Board Connector is Open. Reassemble VSC Board

Countermeasure

Connector

Check

Check

Check the connector connecting
Reassemble the Connector

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60

LG Electronics

Symptom

The screen is bluish(Mosaic screen)

Cause

Loose VSC Board Connector Reassemble VSC BOARD

Countermeasure

Connector

Check

Check

Check the connection condition of the Connector.

Reassemble the Connector.

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61

LG Electronics

Symptom

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.

Cause

Bad IC203 Replace IC203(VPC3230D)

Countermeasure

Check

Check

Check if X201 on VSC board oscillates.
Check Video In/Out of IC203 on VSC board.

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62

IC201
(VPC3230D)
Decoder IC

LG Electronics

Y - Signal in Low Sensibility

IC201(VPC3230D) Decoder is inferior

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63

LG Electronics

Abnormal Normal

Noise with division of colors

Symptom

Cause

Countermeasure

Bad Connector connecting
Control Board and VSC B/D.

Change the Connect or

Check

Check

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

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64

Bad Connector

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

8cm

Realization

When ASIC Chip(IC2 DA1 LGD4001) on Control Board gets
high temperature, you can observe it
(In normal temperatu r e it’s O.K. )

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< Waveform of normal pin>

─

─ heated

──

Buffer(74ACT541) waveform abnormally narrows.

→

→ In this case, it is impossible for Flip Flop(74AC574) on

→→

X B/D to read data.

65

DA1

Buffer

< Waveform of abnormal pin >

─

─ heated

──

DA1

Buffer

LG Electronics

Name Add Open (Green 1 Line)

Symptom Cause and Countermeasure

1.cause: Add. COF Drive IC inferior

COF

Normal Line Data waveform

불량시

불량시 부품변경

불량시불량시

부품변경 가능한가

부품변경부품변경

Open Line Data output waveform

가능한가

가능한가가능한가

Add. COF Drive IC

?

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▶ 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-d i scharge)

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