Daewoo SP-221M, SP-221P, DPM-42A1GCSB, DPP-42A1GCSB Service Manual

Caution

: In this Manual, some parts can be changed for improving. their

performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.

Service Manual

42" PLASMA PDP TV

CHASSIS :

Model :

S/M NO. : DPP221PEF0

SP-221P, 221M

DPP-42A1GCSB
DPM-42A1GCSB

Contents

I. Parts with exception of MODULE

1. Safety Precaution 3

2. Product Specification 4

2-1. SPECIFICATION 4

2-2. Available Input Signal 6

2-3. Remote Control Setup Code 7

3. The Features of Inside 28

4. Block Diagram 29

5. Default Setting in User Menu OSD 30

5-1. Picture Mode 30

5-2. Sound 30

5-3. Screen 31

5-4. Features 13

6. Service Mode 31

7. Power PCB 32

7-1. Input and Environmental Requirement 34

7-2. Output Characteristics 34

7-3. Function of Protection 34

7-4. Connector Specification 35

8. Power Adjustment 35

8-1. Vs(Sustain Voltage) 36

8-2. Va(Adress Voltage) 36

8-3. 5Vcntl 37

9. Noticeable Points While Assembling 38

10. Software Upgrade Method 39

11. Trouble Shooting 42

12. Assembly List 45

13. STRUCTURE OF PDP SET 60

14. EXPLODED VIEW 62

II. Parts of MODULE

1. Confirmation Manual

2. Repair Manual

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-3-

1. Safety Precautions

I. Parts with the exception of MODULE

(1) When moving or laying down a PDP Set, at least two people must work together.

Avoid any impact towards the PDP Set.

(2) Do not leave a broken PDP Set on for a long time. To prevent any further damages,

afterchecking the condition of the broken Set, make sure to turn the power(AC) off.

(3) When opening the BACK COVER, you must turn off power(AC) to prevent any electric

shock. When PDP is operating, high voltage and high current inside the Set can cause
electric shocks.

(4) When loosening screws, check the position and type of the screw.

Sort out the screws and store them separately for reassembling.
Because screws holding PCBs are working as electric circuit GROUNDING,
make sure to check if any screw is missing when assembling / reassembling.
Do not leave any screws inside the set.

(5) If you open the BACK COVER,

you will see a Panel Gas Exhaust Tube
(Picture. 1-1) inside the bracket.
If this part is damaged, the entire PDP
PANEL must be replaced. Therefore,
when working with the set, be careful not
to damage this part.

(6) A PDP Set contains different kinds of

connector cables.
When connecting or disconnecting cables,
check the direction and position of the cable
beforehand.

(7) Connect / disconnect the connectors slowly with care especially FFC(film) cables

and FPC cables.
Do not connect or disconnect connectors instantaneously with force, and handle them
carefully for reassembling.

(8) Connectors are designed so that if the number of pins or the direction does not match,

connectors will not fit.
When having problem in plugging the connectors, check their kind, position, and direction.

Picture.1-1 Panel Gas Exhaust Tube

-4-

2. Product Specification

2-1. SPECIFICATION

ITEM SPECIFICATION REMARK

1. GENERAL

1-1. MODEL NO DPP-42A1GCSB, DPM-42A1GCSB

1-2. CHASSIS NO DPP-42A1GCSB : SP-221P, DPM-42A1GCSB : SP-221M

1-3. SCREEN SIZE 42”(16 : 9)

1-4. COUNTRY Europe

1-5. RESOLUTION 1024(H) x 768(V)

1-6. REMOCON TYPE R-53J17

1-7. SAFETY STANDARD CE(CLASS B), CB

1-8 .TUNIG METHOD VS

1-9. MEMORY CHANNEL 99CH

2. MECHANICAL

2-1. APPEARANCE

1) WITHOUT STAND W x H x D = 1260 x 653 x 91 mm

2) WITH STAND W x H x D = 1260 x 748.5 x 300 mm

2-2. WEIGHT

1) WITHOUT STAND 33 Kg

2) WITH STAND 38.75 Kg

3. ELECTRICAL

3-1. VIDEO INPUT COMPOSITE(NTSC, PAL, SECAM, PAL-M/N, NTSC4.43) &

S-VHS(50/60Hz Y/C) 1 Port

3-2. DTV/DVD INPUT 1080i, 720P, 480P , 480i, 576P, 576i

(Y, Pb/Cb, Pr/Cr COMPONENT SIGNAL) 2 Ports

3-3. SCART INPUT SCART(COMPOSITE, R,G,B, SOUND R/L) 2 Ports

3-4. PC INPUT VGA ~ SXGA(Dot clock : 110MHz), 15 PIN D-SUB 1 Port

3-5. DVI INPUT DVI-D INPUT(DVI Jack) 1 Port

3-6. TV INPUT

1) COLOR STANDARD PAL B / G+I / I+D / K, L-SECAM, L’-SECAM

2) ANTENNA IN ONE INPUT 75 Ω Unbalanced(DIN Standard)

3) RECEPTION CHANNEL

VHF LOW : E2 ~ S6 Ch.

VHF HIGH : S7 ~ S36 Ch.

UHF : S37 ~ E69 Ch.

L’-SECAM : FB, FC1, FC

4) IF & SUBCARRIER PIF : 38.90MHz(PAL, L-SECAM)

33.9 MHz(L’-SECAM)

SIF : 33.40MHz(B/G), 32.90MHz(I/I),

32.4MHz(D/K, L-SECAM), 40.4MHz(L’-SECAM)

3-7. SOUND INPUT VIDEO 1 Port, DTV/DVD 2 Ports, PC 1 Port, DVI 1 Port

3-8. SPEAKER OUTPUT 10W(R) + 10W(L)

3-9. POWER REQUIREMENT AC 100V~240V, 50/60Hz

3-10. POWER CONSUMPTION 310W

3-11. RS-232 CONTROL RS-232 Communication(EXTERNAL UPGRADE)

Product Specification

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ITEM SPECIFICATION REMARK

3-12. AV OUTPUT SCART(CVBS, SOUND R/L) 2 Ports

3-13. FUNCTION

1) SCALING DVI : Screen Mode(16 : 9, 4 : 3, Panorama)

PC : Screen Mode(16 : 9, 4 : 3, Panorama), H/V Position, Auto

TV / VIDEO / DVD(480, 576 i/p) : Screen Mode(16 : 9, 4 : 3,

Panorama, LB(16 : 9), LBS(16 : 9), 14 : 9, LB(14 : 9),

LBS(14 : 9) Auto)

2) OSD * DPP-42A1GCSB : 17 Languages(English, Greek, Dutch,

German, Russian, Rumanian, Swedish, Danish, Finnish,

Norwegian, Spanish, Italian, Franch, Polish, Portuguese,

Czech, Hungarian)

* DPM-42A1GCSB : 19 Languages / up listed

17 languages +2 languages(PERSIAN, ARABIC)

3) PIP / POP TV, Video, S-Video / TV, Video, S-Video

4) OTHERS Still, Sleep Mode, Sound Mode, Timer, Screen Mode,

Teletext(Level 1.5), WSS

4. OPTICAL

4-1. SCREEN SIZE 42”(106 cm) DIAGONAL

4-2. ASPECT RATIO 16 : 9

4-3. NUMBER OF PIXELS 1024(H) x 768(V)

4-4. DISPLAY COLOR 1,073,000,000 Colors(10bits for each RGB)

4-5. CELL PITCH 300um(H) x 676um(V)(Green Cell basis)

4-6. PEAK LUMINANCE 1200cd/m

2

(WITHOUT FILTER GLASS)

4-7. CONTRAST RATIO 8000 : 1(Dark Room)

4-8. VIEWING ANGLE 160 degree(VERTICAL/HORIZONTAL)

5.

USERCONTROL & ACCESSORIES

5-1. CONTROL BUTTON(SET) PUSH-PULL S/W : AC POWER BUTTON

SOFT S/W : MOVE/CH(UP, DOWN), VOLUME(LEFT, RIGHT),

MENU, INPUT SELECT

5-2. REMOTE CONTROL Power, Universal Selection(TV, VIDEO/DVD, CATV/SAT),

(R-53J17) 10 KEYS(0~10), Recall, VCR / DVD KEY

(F.R/SLOW, Play, F.F / SLOW, Stop, PAUSE, OPEN/CLOSE,

PREV, NEXT), MENU, TV, AV, Component, PC/DVI, STILL,

PREV PR, MUTE, PR(UP/DOWN), VOL(UP/DOWN),

SCREEN MODE / MIX, Screen Size, Sleep Timer, I-II / CYAN,

Sound Mode / Index, Red, Green, Yellow, TXT, Reveal,

Update, Expand, Subpage, Hold, PIP, SWAP, PR+, PR-,

Position, Sourse

5-3. ACCESSORIES REMOTE CONTROL, INSTRUCTION MANUAL,

POWER CORD

5-4. OPTIONAL PARTS STAND, WALL HANGER

Product Specification

-6-

2-2. Available Input Signal

(1) PC & DVI

Resolution H Freq.(KHz) V Freq.(Hz) Remark DVI PC

31.469 59.940 DOS O O

640 X 480 37.861 72.809 VESA O O

37.500 75.000 VESA O O

720 X 400 31.469 70.087 IBM O O

800 X 600

35.156 56.250 VESA O O

37.879 60.317 VESA O O

1024 X 768 48.363 60.004 VESA O O

(2) Component

O 1080i - 50 / 60Hz
O 720p - 50 / 60Hz
O 576p - 50 / 60Hz
O 480p - 50 / 60Hz

(3) Video

O PAL, PAL - M, PAL - N
O NTSC, NTSC 4.43
O SECAM

Product Specification

-7-

2-3. Remote Control Setup Code

Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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Product Specification

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3. The Features of Inside

-28-

-29-

4. Block Diagram

-30-

5. Default Setting in User Menu OSD

5-1. Picture Mode

(1) Mode

Normal Dynamic Cinema User

Brightness 50 40 55 Undefined

Contrast 50 80 35 Undefined

Sharpness 8 10 6 Undefined

Colour 50 55 45 Undefined

Tint 50 50 50 Undefined

Normal Movie Music News User

120 Hz 32 50 48 15 Undefined

500 Hz 32 38 38 32 Undefined

1.5 kHz 32 28 15 50 Undefined

5 kHz 32 40 42 32 Undefined

10 kHz 32 48 56 15 Undefined

Function Default Value

Colour Temp Normal

N.R. NR1

CTI On

Function Default Value

Balance 0

Effect Off

AVC Off

O DVI & PC Input - Only brihgtness and contrast are available.

(2) Default value of other functions in picture mode

O N.R. means the noise reduction
O DVI & PC don't support N.R. and CTI functions

5-2. Sound

(1) Mode

(2) Default value of other functions in sound mode

-31-

Default Setting in User Menu OSD

5-3. Screen

16 : 9 4 : 3 Panorama LB (16:9) LBS (16:9) 14 : 9 LB (14:9) LBS (14:9) Auto

Component O O O X X X X X X

TV O O O O O O O O O

AV O O O O O O O O O

PC O O O X X X X X X

DVI O O O X X X X X X

O H. Position, V. Position, and Auto screen size is available only in PC mode.

5-4. Features

(1) Mode

O DVI & PC don't support MGDI function.

(2) Time Setting

(3) ISM

Function Background Language Child Lock MGDI Auto Power

Default Value 10 English Off On Off

Function Pixel Shift Low Bright Image Invert

Default Value Off Off Off

Function Clock Auto Clock Off Timer Off Time Wake Timer Wake Time Wake Prog. Wake Vol.

Default Value Undefined On Off PM 12:00 Off PM 12:00 1 20

-32-

6. Service Mode

To enter SERVICE MODE,

A. Press “

FF

VOL” -> “MUTE ” -> “RECALL” -> “MUTE” button of remote controller

(R-53J17)

or

B. Press “S9” button of SERVICE REMOTE CONTROLLER.

[Note] In the first line, there is the model name and the version of the upgraded program

on the PDP set.

6-1. Default Value of Pw318B_1 and Pw318B_2

O RGB offset values will be set by executing ‘RGB Auto Cal’ in service mode.
O YPbPr offset values will be set by executing ‘YPbPr Auto Cal’ in service mode.

(1) Pw318B_1

O Sub Bias : For BRIGHTNESS adjustment(All inputs)
O Sub Gain : For CONTRAST adjustment(All inputs)
O Bias R : For R BRIGHTNESS adjustment(All inputs)
O Bias G : For G BRIGHTNESS adjustment(All inputs)
O Bias B : For B BRIGHTNESS adjustment(All inputs)
O Gain R : For R CONTRAST adjustment(All inputs)
O Gain G : For G CONTRAST adjustment(All inputs)
O Gain B : For B CONTRAST adjustment(All inputs)

(2) Pw318B_2

O Sub Bias : For DVI BRIGHTNESS adjustment
O Sub Gain : For DVI CONTRAST adjustment

6-2. Pw3300_1

Function R Offset G Offset B Offset R Gain G Gain B Gain

Default Value 100 100 100 94 97 94

Function Y Offset Pb Offset Pr Offset Y Gain Pb Gain Pr Gain

Default Value 105 125 125 90 203 196

Sub Bias Sub Gain Bias R Bias G Bias B Gain R Gain G Gain B

Pw318B_1 32 13 25 23 38 12 16 20

Pw318B_2 32 12

Service Mode

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O The automatically set offset values may different from the default value depend

on B/D. However, the main B/D should be replaced or contact Kunpo R&D center
in Korea if the OFFSET values differ more than ±20 from default value.

6-3. Pw3300_2 & Pw2250 6-4. Msp34X0

O In Msp34X0,

- Sc pScale : Prescale adjustment for external input(AV, Component, PC, DVI etc.)

- Fm pScale : FM/AM prescale adjustment

- Nic pScale : NICAM prescale adjustment

6-5. Misc

O Tst Ptrn AT shows five cycled patterns(white, black, red, green, blue) every 1 minute

automatically

O Tst Ptrn MA shows five cycled patterns manually by pressing volume up key.

6-6. Panel

O Panel Temp indicates the current temperature of the panel.

6-7. Reset

O Level 1 - Resets all data in E

2

PROM other than HDCP key, EDID, RGB offset

and YPbPr offset of Pw3300_1.

O Level 2 - Resets all data in E

2

PROM other than the exception of Level 1 and

Pw318B_1.

O Factory - Resets the data of auto search, language setting, time setting, and the

user menu values that could be reset by ‘Initialize’ function in
Feature mode.

AV Brt AV Cont

Pw3300_2 127 75

Pw2250 127 75

Function Sc pScale Fm pScale Nic pScale

Default Value 255 22 51

Function TV Auto Off TXT Lang TXT T/F

Default Value On Auto TOP

Function Sync Mode Bright Mode Power Mode Gamma Mode Panel Temp

Default Value AUTO 100% 100% 2.2N **.*

7. Power PCB

-34-

7-1. Input and Environmental Requirement

7-2. Output Characteristics

Input Requirement Description

Norminal Input Voltage AC100V to AC240V

Input Voltage Variation Range AC85V to AC276V

Nominal Frequency 50 / 60 Hz

Frequency Variation Range 47Hz to 63Hz

Phase Single

Inrush Current 50A zero-pk max. at cold start

and any specified line, load and

temperature conditions

Environment Requirement Description

Operating Temperature Range 0 to 50 deg.

Operating Humidity Range 20 to 80 %

Storage Temperature Range -20 to 60 deg.

Storage Humidity Range 10 to 90 %

Cooling Condition Free Air

Power PCB

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7-3. Function of Protection

7-4. Connector Specification

Protection Output Circuit Trip point Notes

Vs 2.2A or more

Va 1.71A or more

5Vctrl 6.0A or more

5V 4.6A or more

Over Current 12V 2.1A or more Shut down by Undr Voltage

3.4V 11.5A or more

33V 0.011 or more

34V 1.7A or more

5Vstby 3.0A or more

Vs 210V - 225V

Over Voltage Va 73V - 81V Shut down

5Vctrl 5.6V - 7.5V

Under Voltage All Output ---- Shut down

Short Circuit All Output ---- No hardware failure and No fire

8. Power Adjustment

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O Power Adjustment - Adjusting to standard power voltages, which are written in

the upper right side of PDP module. These values were already adjusted by PDP
module makers while producing. Therefore, if there are some problems in picture
after adjusting, you should classify that PDP module as a fault and contact to PDP
module maker.

O Input Video Pattern - 100 IRE Full White Pattern

8-1. Vs(Sustain Voltage) : Discharge Sustain Voltage

O Measurement Equipment : Digital Volt Meter(DC volt mode)
O Adjusting TP : Vs TP
O Adjusting Location : RV 401
O Optimum Adjusting Voltage : The voltage which is written in the label located in

upper right side of the PDP module.(Typical Voltage : 184V)

Voltage Adjustment Label

Power Adjustment

-37-

8-2. Va(Address Voltage) : Data Input Voltage

O Measurement Equipment : Digital Volt Meter(DC volt mode)
O Adjusting TP : Va TP
O Adjusting Location : RV401
O Optimum Adjusting Voltage : The voltage which is written in the label located in

upper right side of the PDP module.(Typical Voltage : 60V)

Power Adjustment

-38-

8-3. 5Vcntl(5V control)

O Measurement Equipment : Digital Volt Meter(DC volt mode)
O Adjusting TP : Vcc TP
O Adjusting Location : RV501
O Optimum Adjusting Voltage : The voltage which is written in the label located in

upper right side of the PDP module.(Typical Voltage : 5.2V)

9. Noticeable Points While Assembling

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9-1. Insertion of Ring Core(EMI Filter) to Speaker Cable(L, R), AV3 Cable and

their position

- Coil the Ring Core(Filter EMI, S/N : 5PZCA2009A) 2 turns with Speaker Cable (L, R)
as shown in the figure below.

- Coil the Ring Core(Filter EMI, S/N : 5PZCAT3035) 1 Turn with AV3 Cable as shown
in the figure below.

9-2. Insertion of Ring Core to the Power Cable

- Insert a Ring Core(Filter EMI, S/N : 5PZCA2009A) to 7 pin and 10 pin Power Cable

Noticeable Points While Assembling

-40-

9-3. LVDS Cable Connection

-> CABLE LVDS, S/N : 4856818800

-> DIGITAL B/D part

-> CLAMP WIRE, S/N : 4856818800

-> CLAMP WIRE, S/N : 4856815900
(Place these CLAMP WIRES as shown in the figure below)

* Make LVDS Cable not to touch on the Terminal Plate while connecting.

a. VIDEO B/D part

Noticeable Points While Assembling

-41-

9-4. Shieldron Tape on SCART Input

-> Tape EMI, S/N : 485A100071
(Position : From top of Scart to Terminal Channel Gasket)

9-5. Shieldron Tape on DVI Input

-> Tape EMI, S/N : 485A100571
(attach vertically, 3 X 4.2 Cm)
(Position : From top of DVI to Terminal Channel Gasket)

10. Soft ware Upgrade Method

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10-1. Check whether MAIN PCB is connected to SUB PCB(PA901 to P901).
10-2. Connect 9-PIN serial cable to the serial port of the computer.
10-3. Connect the opposite end of the serial cable to RS-232C port of SUB PCB.
10-4. Run Flashupgrader.exe in the PC to excute the program as shown below.

10-5. Select current Upgrade file

- Click “Choose...” button to select the file you want to upgrade.

- Select the file(pwSDK.inf) that you want to upgrade.

SOFTWARE UPGRADE Method

-43-

10-6. Select correct COM Port and Baud Rate(115200) as shown below.

Then press Flash button to finish setup.

10-7. Turn on the ac power and then upgrade program will start the download

as shown below.

SOFTWARE UPGRADE Method

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10-8. When the upgrading is complete, a window(below) will be opened.

Press “Finish” button to complete the process.

11. Trouble Shooting

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Before starting Trouble Shooting

O Trouble diagnosing and repairing of set mean find out which PCBs or blocks are

not working and replace them with new PCBs.
Repairing the broken PCBs are not necessary. Keep the broken PCBs and return
them to service center or R&D center.

O This Trouble Shooting list only contains representative and simple PCB trouble

diagnosis and Module Exchange method.
Therefore, if you find sets that are difficult to diagnose or to repair, contact R&D center.

O Basic Trouble Diagnosis procedure

1) Check problem Symptoms

2) Open Back Cover

3) Trouble Diagnosis & Replace broken PCB

4) Adjust new PCB module

5) HEATRUN for at least 30 minutes, inputting Full White test pattern

6) Full Function test

7) Repair Complete

O Required Equipment for trouble diagnosis

1) Digital Multimeter(User Mode : measure DC Voltage, measure Diode Voltage,
Short-open test)

2) Screwdriver(or electric screwdriver), Plastic adjusting tool

3) Oscilloscope(for detailed examination only)

O Before replacing PCBs, you MUST turn the AC switch “OFF”.
O After replacing High Voltage Board(Power PCB, Y-SUS, Z-SUS, Data B/D, Scan B/D),

and Main & Sub PCB, extra adjustment might be needed.(Refer to Power Adjustment)

O Dust or extraneous materials may cause bad connections.

Therefore, try to apply soft brush, air fresher, or breath to clean the dust or
extraneous materials.

O While assembling the set in factory, it could have bad connection.

Try to reassemble the necessary connectors and also check the state of the connectors.

O After the set is repaired, leave Back Cover open for followings.

Run HEAT RUN for at least 30 minutes by displaying Full White test pattern of
Service Mode(Refer to Service Manual ‘6. Service Mode’ part).
Check the screen conditions and basic functions(remote control operation etc.)

O After Back Cover is closed, redo HEAT RUN for at least one hour with Full White

input using Test Pattern of Service Mode. Check the screen conditions and basic functions.

Trouble Shooting

-46-

O Caution 1 !!

When disconnecting / connecting connectors, you MUST turn “OFF” the AC power and
check the direction and position of the connectors before working.

O Caution 2 !!

Whenever you reassemble connectors connecting High Voltage Board and POWER PCB
(CN805, CN806), remaining voltage still exists in the POWER PCB could cause electric
shock and damage the set.
Therefore always reassemble the connectors several minutes after AC power is off.
To be more careful, using a Multimeter you should check to see if Vs is less than 10V
and then connect connectors.

Definition

O Red LED - Stand by state(ready for operating)
O Green LED - The set is turned on and operating
O Shut Down - While green LED, power PCB does not make any operating sound or noise

(i.e. Power relay does not operate normally)

O Weak Discharge - The screen looks like BLACK, but there are little discharged cells

on the screen

O Abnormal Discharge - Shows unexpected discharged cells on the image
O No Signal - OSD is working but no images are displaying
O No Raster - Not even OSD is displaying

Trouble Shooting

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11-1. No Signal or No Raster

Trouble Shooting

-48-

11-2. No Sound

Trouble Shooting

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11-3. Shut Down

Trouble Shooting

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A) Low Voltage Shut Down

Trouble Shooting

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B) Z-SUS, Digital B/D, Data B/D Shut Down

Trouble Shooting

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C) Y-SUS, Scan B/D Shut Down

Trouble Shooting

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D) High Voltage Shut Down

Trouble Shooting

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11-4. No Key Operation

Trouble Shooting

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11-5. No Remote Control Operation

Trouble Shooting

-56-

11-6. No Key and Remote Control Operation

Trouble Shooting

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11-7. Abnormal Discharge

Trouble Shooting

-58-

11-8. Not Even Weak Discharge

11-9. Particular Input Signal(Video, PC, TV, or Component) Does Not Work

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Trouble Shooting

11-10. Others

A) Set Is Making Unusual Noise

-> Check the connection of Power PCB and Module. If they are OK,
replace the Power PCB and check the symptom again.

B) Occasionally, the set does not operate normally.

Turning off and on the AC power make the set to operate normal again

-> Upgrade the software first.
If you still see the same symptom, replace the Main and Sub B/D.

C) Images are abnormal

-> Check the default values of service mode and user mode. If they are OK,
replace the Main and Sub B/D.
If they are not OK, upgrade the software and check the symptom again.

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12. Assembly List

* Ass’y of module is listed on the next page.

No. PCB ASS’Y CODE ASS’Y NAME ASS’Y DESCRIPTION

1 4851413800 BACK COVER ASSY 21728+26162

2 4853293700 BRKT DR ALDCS 8

3 4854962100 BUTTON CH ABS GY

4 4859004060 CABLE FFC 1.0-K-30P-50MM

5 4859004460 CABLE LVDS 1001-31FC+1001-31FC+42A1LASB=560

6 4859003750 CABLE PHONE PLUG PLUG+CABLE 1365AWG26=150B

7 4856815900 CLAMP WIRE EGI T0.4+TUBE+PIE 3.2

8 4850705N31 CONNECTOR 12505HS-05+12505TS+ULW=650

9 4850710S22 CONNECTOR 12505HS-10+12505HS-10+USW=600

10 4850710S26 CONNECTOR YMH025-10R+1-171822-0+ULW=600

11 4850712S06 CONNECTOR YMH025-12R+1-171822-2+ULW=350

12 4850707S18 CONNECTOR YMH025-07R+171822-7+ULW=300

13 4850703N40 CONNECTOR 25045HP-03+25048HS-03+ULW=150

14 4850709S18 CONNECTOR YH396-09V+YH396-10V+YH396-04+ULW=160

15 4850708S24 CONNECTOR YH396-08V+YH396-08+ULW=850

16 4850701S30 CONNECTOR 90017TS+90017TS=ULW=280

17 4850712S03 CONNECTOR 12505HS-12+12505HS-12+USW=850

18 48599DM001 CORD POWER AS EU LP-33+LS-60=2.0M(LF)

(DPP-42A1GCSB)

19 48599PM003 CORD POWER AS UK LP-61L+LS-60=2.0M

(DPM-42A1GCSB)

20 4855553900 DECO SENSOR PC

21 5PZCAT3035 FILTER EMI ZCAT3035-1330

22 5PZCA2009A FILTER EMI ZCAT2035-0930A

23 PTFEPWG122 FILTER EMI AS DPP-42A1LCSB

24 4853823100 FRAME HORIZENTAL SECC T1.6

25 4851C02800 FRAME SUPPORT L AS 38232+38234

26 4851C02900 FRAME SUPPORT R AS 38233+38234

27 485A102280 GLASS FILTER DFM4203P3

28 4957000800 HEAT SINK AL ANODIZHG+TAPE

29 4852090701 MASK FRONT ABS GY

30 PTFEPWG122 MODULE PDP PDP42X3XXXX

42X32000.ASLGB

42X32000.ASLTB

Assembly List

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No. PCB ASS’Y CODE ASS’Y NAME ASS’Y DESCRIPTION

31 4850M10710 MODULE POWER 1H308W

32 PTMPMSG127 PCB MAIN MANUAL AS DPP-42A1GCSB

33 PTSBMSG122 PCB SUB MANUAL AS DPP-42A1LCSB

34 485A106070 SHIELDRON (5 AND 3)X85X1T(ANGLE)

35 485A106270 SHIELDRON 41X53X18T

36 48A8311800 SPEAKER SYSTEM SS-63A02RC

37 485A100071 TAPE EMI CU+NI T0.13 VER1

38 485A100571 TAPE EMI CU+NI 30X42XT0.2

39 4853633300 TERMINAL COVER A5052 T1.0

40 4853635200 TERMINAL PLATE A5052 T1.0

41 48B5353J17 TRANSMITTER REMOCON R-53J17 (AAA)

42 485AS11790 CTRL BOARD AS 6871QCH077D

43 485AS11890 Y DRV BOARD AS 6871QDH117A

44 485AS11990 XL BOARD AS 6871QLH059A

45 485AS12090 XR BOARD AS 6871QRH068A

46 485AS12190 Y SUS BOARD AS 6871QYH053B

47 485AS12290 Z SUS BOARD AS 6871QZH056B

48 485AS12390 PSU BOARD AS 3501Q00201A

49 485AS12490 CTRL BOARD AS 6871QCH077D

50 485AS12590 Y DRV BOARD AS 6871QDH117A

51 485AS12690 XL BOARD AS 6871QLH067A

52 485AS12790 XR BOARD AS 6871QRH077A

53 485AS12890 Y SUS BOARD AS EBR31493401

54 485AS12990 Z SUS BOARD AS EBR31872801

55 485AS13090 PSU BOARD AS 3501Q00201A

13. STRUCTURE OF PDP SET

-62-

-63-

STRUCTURE OF PDP SET

COMPONENT PICTURE REMARK

1). PDP MODULE

(With F/SUPPORT)

1a) Y-SUS B/D

1b) Z-SUS B/D

1c) X LEFT B/D ASSY

STRUCTURE OF PDP SET

-64-

COMPONENT PICTURE REMARK

1d) X RIGHT B/D ASSY

1e) Y DRV B/D ASSY

1f) CTRL B/D ASSY

2) MAIN BOARD

STRUCTURE OF PDP SET

-65-

COMPONENT PICTURE REMARK

3) SUB BOARD

4) POWER BOARD

5) FRONT MASK

6) FILTER GLASS

-66-

STRUCTURE OF PDP SET

COMPONENT PICTURE REMARK

7) BACK COVER

14. EXPLODED VIEW

-67-

DAEWOO ELECTRONICS CORP.

686, AHYEON-DONG, MAPO-GU,
SEOUL, KOREA.

C.P.O. BOX 8003 SEOUL KOREA

PRINTED DATE : Dec. 2006

PDP MODULE

SERVICE MANUAL

CAUTION

1. BEFORE SERVICING THE PDP MODULE,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

2. WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE
REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER.

MODEL : PDP42X3####

English

[PDP42X3#### Module]

CONTENTS

Safety Precautions
Technical Feature
Formation and Specification of Module

1. Formation of Module

2. Information of Boards

3. Label information of Module

Adjustment
Trouble Shooting

1. Checking for No Picture

2. Hitch Diagnosis Following Display Condition

2-1. 1/2 of the screen doesn’t be shown
2-2. 1/4 of the screen doesn’t be shown
2-3. Screen doesn’t be shown as Data TCP
2-4. It is generated unusual pattern of Data TCP IC unit
2-5. Screen doesn’t be shown at all as Scan FPC
2-6. Regular stripe is generated at regular internal on the whole screen
2-7. Data copy is generated to stripe direction
2-8. The screen has one several vertical line
2-9. The screen has one or several horizontal line
2-10. Lightness of screen is wholly darken though there is input-signal-pattern
2-11. The screen displays other color partially on full white screen or happens Mis-discharge partially

on full black screen.

2-12. It doesn’t display a specified brightness at specified color

3. Checking for component damage

3-1. Y IPM(IC18) or Z IPM(IC2) damage
3-2. FET Ass’y(Y B/D : HS2) damage
3-3. SCAN IC(Y DRV B/D : IC1~10) damage
3-4. TCP damage
3-5. Crystal(CTRL B/D : X1) damage

Critical Components List
Records of Revision for Boards, Components and ROM DATA

* Annexing : Schematic Diagram

When servicing of PDP Module, it should be not enforced
into another way aside next rule, or a unaccustomed person
should not repairing.
When using/handling this PDP Module, pay attention to the
below warning and cautions.

Warning

Indicates a hazard that may lead to death or injury if the
warning is ignored and the product is handled incorrectly.

Caution

Indicates a hazard that can lead to injury or damage to
property if the caution is ignored and the product is handled
incorrectly.

1. WARNING

(1) Do not touch Signal and Power Connector while this

product operates.

Do not touch EMI ground part and Heat Sink of Film Filter.

(2) Do not supply a voltage higher than that specified to this

product. This may damage the product and may cause a
fire.

(3) Do not use this product in locations where the humidity is

extremely high, where it may be splashed with water, or
where flammable materials surround it.
Do not install or use the product in a location that does no
satisfy the specified environmental conditions. This may
damage the product and may cause a fire.

(4) If a foreign substance (such as water, metal, or liquid) gets

inside the product, immediately turn off the power.
Continuing to use the product, it is may cause fire or
electric shock.

(5) If the product emits smoke, and abnormal smell, or makes

an abnormal sound, immediately turn off the power.
Continuing to use the product, it may cause fire or electric
shock.

(6) Do not disconnect or connect the connector while power to

the product is on. It takes some time for the voltage to drop
to a sufficiently low level after the power has been turned
off.
Confirm that the voltage has dropped to a safe level before
disconnecting or connecting the connector.

(7) Do not pull out or insert the power cable from/to an outlet

with wet hands. It may cause electric shock.

(8) Do not damage or modify the power cable. It may cause

fire or electric shock.

(9) If the power cable is damaged, or if the connector is loose,

do not use the product : otherwise, this can lead to fire or
electric shock.

(10) If the power connector or the connector of the power

cable becomes dirty or dusty, wipe it with a dry cloth.
Otherwise, this can lead to fire.

(11) PDP Module uses a high voltage (Max.450V dc). Keep

the cautions concerning electric shock and do not touch
the Device circuitry when handling the PDP Unit. And
because the capacitor of the Device circuitry may remain
charged at the moment of Power OFF, standing by for
1 minute is required in order to touch the Device circuitry.

2. CAUTIONS

(1) Do not place this product in a location that is subject to

heavy vibration, or on an unstable surface such as an
inclined surface. The product may fall off or fall over,
causing injuries.

(2) Before disconnecting cable from the product, be sure to

turn off the power. Be sure to hold the connector when
disconnecting cables. Pulling a cable with excessive force
may cause the core of the cable to be exposed or break
the cable, and this can lead to fire or electric shock.

(3) This product should be moved by two or more persons. If

one person attempts to carry this product alone, he/she
may be injured.

(4) This product contains glass. The glass may break, causing

injuries, if shock, vibration, heat, or distortion is applied to
the product.

(5) The temperature of the glass of the display may rise to

80°C or more depending on the conditions of use.
If you touch the glass inadvertently, you may be burned.

(6) If glass surface of the display breaks or is scratched, do

not touch the broken pieces or the scratches with bare
hands. You may be injured.

(7) PDP Module requires to be handled with care not to be

touched with metal or hard materials, and must not be
stressed by heat or mechanical impact.

(8) There are some exposed components on the rear panel of

this product. Touching these components may cause an
electric shock.

(9) When moving the product, be sure to turn off the power

and disconnect all the cables. While moving the product,
watch your step. The product may be dropped or all,
leading to injuries of electric shock.

English

. Safety Precautions

(10) In order to protect static electricity due to C-MOS circuitry of

the Drive part, wear a wrist band to protect static electricity
when handling.

(11) If cleaning the Panel, wipe it with a soft cloth moistened with

water or a neutral detergent and squeezed, being careful not
to touch the connector part of the Panel. And don’t use
chemical materials like thinner or benzene.

(12) If this product is used as a display board to display a static

image, “image sticking” occurs. This means that the
luminance of areas of the display that remain lit for a long
time drops compared with luminance of areas that are lit for
a shorter time, causing uneven luminance across the
display.

The degree to which this occurs is in proportion to the
luminance at which the display is used. To prevent this
phenomenon, therefore, avoid static images as much as
possible and design your system so that it is used at a low
luminance, by reducing signal level difference between
bright area and less bright area through signal processing.

(13) Because PDP Module emits heat from the Glass Panel part

and the Drive circuitry, the environmental temperature must
not be over 40°C.

The temperature of the Glass Panel part is especially high
owing to heat from internal Drive circuitry. And because the
PDP Module is driven by high voltage, it must avoid
conductive materials.

(14) If inserting components or circuit board in order to repair, be

sure to fix a lead line to the connector before soldering.

(15) If inserting high-power resistor(metal-oxide film resistor or

metal film resistor) in order to repair, insert it as 10mm away
as from a board.

(16) During repairs, high voltage or high temperature components

must be put away from a lead line.

(17) This is a Cold Chassis but you had better use a cold

transformer for safety during repairs. If repairing electricity
source part, you must use the cold transformer.

(18) Do not place an object on the glass surface of the display.

The glass may break or be scratched.

(19) This product may be damaged if it is subject to excessive

stresses (such as excessive voltage, current, or
temperature). The absolute maximum ratings specify the
limits of these stresses.

(20) The recommended operating conditions are conditions in

which the normal operation of this product is guaranteed. All
the rated values of the electrical specifications are
guaranteed within these conditions.
Always use the product within the range of the
recommended operating conditions. Otherwise, the reliability
of the product may be degraded.

(21) This product has a glass display surface. Design your

system so that excessive shock and load are not applied to
the glass. Exercise care that the vent at the corner of the
glass panel is not damaged.
If the glass panel or vent is damaged, the product is
inoperable.

(22) Do not cover or wrap the product with a cloth or other

covering while power is supplied to the product.

(23) Before turning on power to the product, check the wiring of

the product and confirm that the supply voltage is within the
rated voltage range. If the wiring is wrong or if a voltage
outside the rated range is applied, the product may
malfunction or be damaged.

(24) Do not store this product in a location where temperature

and humidity are high. This may cause the product to
malfunction. Because this product uses a discharge
phenomenon, it may take time to light (operation may be
delayed) when the product is used after it has been stored
for a long time. In this case, it is recommended to light all
cells for about 2 hours (aging).

(25) This product is made from various materials such as glass,

metal, and plastic. When discarding it, be sure to contact a
professional waste disposal operator.

(26) If faults occur due to arbitrary modification or disassembly,

LG Electronics is not responsible for function, quality or other
items.

(27) Use of the product with a combination of parameters,

conditions, or logic not specified in the specifications of this
product is not guaranteed. If intending to use the product in
such a way, be sure to consult LGE in advance.

(28) Within the warranty period, general faults that occur due to

defects in components such as ICs will be rectified by LGE
without charge. However, IMAGE STICKING due to
misapplying the above (12) provision is not included in the
warranty. Repairs due to the other faults may be charged for
depending on responsibility for the faults.

(29) In assembling Module into SET, in case Film Filter and as a

protective film is bared, static electricity of exfoliated
protective film which is bared from beginning X-Board down
ward getting TCP to no getting TCP should not influence on
TCP. Also Filter after protective film is bared or in the
storage can be charged with electricity, so the EMI ground
part of Film Filter should be used after Grounding.

English

3. Warning label for PDP Module

1) PCB Warning label

(1)Warning

Warning against any dangers under certain circumstance.

(2)Hot surface

Warning against any possibilities of injury or burn due to high
temperature under certain circumstance.

(3)Dangerous voltage

Warning against the possibility of electric shock under certain
circumstance.

(4)Electrostatic sensitive devices

Warning against any possibilities of electric shock/high
temperature by touching under certain circumstance

(5)Caution sentence

Warning against high voltage under certain position.

(6) Fuse Caution sentence

The fuse should be replaced with the same type and rating to
prevent fire under certain circumstance

2) Safety precautions on Module

(1)High Voltage

Warning against the danger of electric shock when touching
due to dangerous high voltage.

(2)Hot Surface

Warning against the danger of burn when touching due to high
temperature parts.

(3)Wound

Caution against the danger of mechanical injuries.

WARNING

CAUTION

MECHANICAL HAZARD.

WOUND

DO NOT TOUCH POINTED PART.

WARNING

HAZARD VOLTAGE.

HIGH

VOLTAGE

DO NOT TOUCH ELECTRIC POINT.

WARNING

HOT PART CAN BURN.

HOT

SURFACE

DO NOT TOUCH ELECTRIC POINT.

High Voltage

Technical Feature

PDP Module is a display device to be divided into a Panel part and a Drive part. The Panel part consists of Electrodes, Phosphor,
various dielectrics and gas, and the Drive part includes electronic circuitry and PCB.
PDP42X3#### model produced in the LG electronics is 42inches color Plasma display module of Wide XGA(1024(H) x 768(V)),
and it is a display device giving concrete to bright image by using AC Plasma technology of LG electronics.

1) General Specification

(1) Model Name

: PDP42X3####

(2) Number of Pixel

: 1024(H) 768(V) (1pixel=3 RGB cells)

(3) Pixel Pitch

: 900 m(H) 676 m(V)

(4) Cell Pitch

: 300 m(H) 676 m(V) (

Base : Green Cell

)

(5) Display area

: 921.6(H) 519.2(V) 0.5(mm)

(6) Outline dimension

: 1005(H) 597(V)x 61.2(D) 1(mm)

(7) Color arrangement

: RGB Closed(Well) type

(8) Number of COLRO

: (R)1024 (G)1024 (B)1024(10,737,400,000)

(9) Weight

: 15.3 0.5(Kg) : Net
: 113.5

5(Kg) : 5EA/1BOX

(10)

Aspect Ratio

: 16:9

(11)

Peak Brightness

: Typical 1200cd/ (1% White Window)
: Typical 140:1(

Light room

100 Lx at center)

(12)

Contrast Ratio

: Typical 10,000:1(

Dark room

1% White Window)

(White Window Pattern at Center)

(13)

POWER CONSUMPTION

: Max 330 W(Full White)

(14)

Lifetime

:

Over

60,000

Hrs (Initial brightness 1/2)

2) Block Diagram

English

Formation and Specification of Module

1. Formation of Module

No

(1)
(2)
(3)
(4)
(5)

Connector

P1 [Y SUS B/D]

P152 [Y SUS B/D]

P1 [Z SUS B/D]

P7 [CTRL B/D]
P4 [CTRL B/D]

Input Voltage & Signal

5V, Va, Vs

5V, Va

5V, Va, Vs

5V

Video Signal

No

Part No

6871QCH077A
6871QDH117A
6871QYH053A
6871QZH056A
6871QLH059A
6871QRH068A

PWB(PCB) ASS Y
PWB(PCB) ASS Y
PWB(PCB) ASS

Y

PWB(PCB) ASS

Y

PWB(PCB) ASS

Y

PWB(PCB) ASS

Y

Description

CTRL B/D ASS

Y
Y DRV B/D ASS Y
Y SUS B/D ASS

Y

Z SUS B/D ASS

Y

XL B/D ASS

Y

XR B/D ASS

Y

No

1
2
3
4

6850QV0006A
6850QX0014P
6631Q12005N
6631Q15003F

Part No.

1EA
1EA
1EA
2EA

EA

Note

Y B/D<-->CTRL B/D P=0.5MM 50PIN L180MM AU PLATING
X B/D <-->CTRL B/D P=0.5MM 60PIN L60MM AU

1.25MM PITCH 12PIN L360MM UL1061-28AWG YEON-HO

1.5MM PITCH 7PIN L150MM UL1061-26AWG YEON-HO

SPECIPICATION

English

2. Information of Boards

1) 42X3 PDP Module

2) CTRL B/D

3) Y SUS B/D

4) Z SUS B/D

5) Y DRV B/D

6) XL, XR B/D

XL

XR

English

3. Label Information of Module

1) Identification Label

7 cm

2.5 cm

2) Warning & Caution Label (High Voltage, Hot Surface, Mechanical Hazard)

3) Safety Approval Label

4) Serial No. of Frame

5) Voltage Label (Model Name & Operational Voltage)

English

1. Application Object

This standard is applied to the PDP42X3#### PDP Module
which is manufactured of PDP promotion department or
elsewhere.

2. Notes

(1) Without any special specification, the Module should be at

the condition of preliminaries more than 10minutes before
adjusting.

Service signal : 100% Full White signal
Service DC voltage : Vcc : 5V, Va : 60V, Vs : 180V
DC/DC Pack voltage : Vsc : 120V, Vzb : 100V, -Vy : -200V
Preliminaries environment : Temp (25 5°C), Relative

humidity (65

10%)

(2) Aging shall be performed of module in order for

characteristics stabilization after completion of assembling
adjustment. Conditions of aging are as follows.

Service signal : 100% Full White, Red, Green, Blue pattern

signal(Service time of each pattern : within 5minutes/cycle)

Service DC voltage : Match the voltage with the set up

voltage in the first adjustment.
Aging time : More than 4Hrs
Aging environment : Temp (25 2°C), Relative humidity-

Less than 75%

(3) Module adjustment should be followed by below sequence.

Initial voltage setting.(Vs : 180V, Va : 60V, Vcc : 5V)

Vscan Voltage adjustment (120V)

-Vy Voltage adjustment (200V)
Y set_up Waveform adjustment.
Y set_down Waveform adjustment.
Vzb Voltage adjustment (100V)
But the above item may be altered by consideration of
mass productivity.

(There shall be consultation and agreement of Research

Office / Development Office / QA / Production
Department in case when altering sequence order.)

(4) Without any special specification, you should adjust the

Module in the environment of Temp (25

5°C) and

Relative humidity (65

10%)

Caution) If you let the still image more than 10 minutes(especially

The Digital pattern or Cross Hatch Pattern which has
clear gradation), after image can be presented in the
black level part of screen.

3. Adjustment after Assembling

3-1. Using Tools

Conditions of aging are as follows.
(1) Digital oscilloscope : More than 200MHz
(2) DVM(Digital Multimeter) : Fluke 187 or similar one
(3) Signal generator : VG-828 or similar one
(4) DC power supply

- DC power supply for Vs (1) : Should be changeable
between 0V to 200V/ more than 10A

- DC power supply for Va (1) : Should be changeable
between 0V to 100V/ more than 5A

- DC power supply for 5V (1) : Should be changeable
between 0V to 10V/ more than 10A

- DC-DC Convertor Jig(1) : Vs, Va, 5V Jig with
corresponding output to each voltage Pin arrangement of
PDP42X3#### Module after the input of voltage.

- Voltage stability of power supply : Within

1% for Vs/Va,

within

3% for 5V

3-2. Connection diagram of measuring

instrument and setting up the initial
voltage

(1)The Connection diagram

Refer to (Fig.1) Connection diagram of measuring instrument.

(2) Setting up the initial voltage : Refer to Voltage Label

Vcc : 5V, Va : 60V, Vs : 180V
But, Initially setting up voltage can be changed by the set
up range according to the Module’s characteristic.

3-3. How to Adjust

1. Connect the measuring instrument to be (Fig.1).

2. How to adjust Y SUS( Adjustment should be done
after setting Vs/Va to the set voltage)

(1) -Vy Voltage adjustment

Measure and adjust the voltage between -Vy TP on top

of the DD_pack on theY SUS B/D .

Turn the variable resistor of -Vy DD_pack(PS101) on

Y SUS B/D to set to (-200 ±0.5V).

(2) Vscan Voltage adjustment

Measure and adjust the voltage between Vsc TP on

right of the P4 on the Y SUS B/D .

Turn the variable resistor of Vscan DD_pack(PS102) on

Y SUS B/D to set to (120 ±0.5V).

(3) Connect the oscilloscope probe Waveform

point on Y DRV B/D and the GND.

. Adjustment

(4) Y set-up voltage waveform adjustment.

Turn the VR3 on Y SUS B/D so that Vsp voltage A of
(Fig. 2) be 150

1V.

(5) Y set-down voltage waveform adjustment.

Turn the VR2(Set _dn_Vy)on Y SUS B/D so that
waveform A of (Fig. 2) be 10

5 .

3. How to adjust Z SUS (Adjustment should be done
after setting Vs/Va to the set voltage)

(1) Vzb(Z bias) voltage adjustment.

For the Vzb voltage, measure and adjust the voltage
between the frame GND and Vzbias point(Q18 Drain)
in left side on Z SUS B/D.
Turn the variable resistor of Vzb DD_Pack(PS101) on
Z SUS B/D to set to 100 ±0.5V.

(Fig. 2) Y set-up Waveform

English

(Fig. 1) Connection diagram of measuring instrument

<Caution>

(1) The power of the signal generator should be turned on before turning on the power of DC power

supply.

(2) The voltage of DC power supply, in standard of Module input voltage, should be preset as below.

(Vs dc : 180V, Va dc : 60V, 5V dc :5V)

(3) The power of power supply must turned ON/OFF by this sequence.

* Module on : 5V Va Vs, * Module off : Vs Va 5V

(4) Signal generator should be selected with 1024 x 768 mode.

1. Checking for No Picture

A screen doesn’t display at all and condition of black pattern or power off.

(1) Check whether the CTRL B/D LED(D12, D13, D14) is turned on or not.
(2) Check the power and signal cable of CTRL B/D.
(3) X B/D, Y B/D, Z B/D is well plugged in.
(4) Check the connection of X B/D, Y B/D and Z B/D to CTRL B/D.
(5) Measure the output wave of X, Y, Z B/D with oscilloscope(more than 200MHz)

and find the trouble of B/D by comparing the output wave with below figure.

- Measure Point fo Y B/D : TP(Waveform on Y DRV B/D)

- Measure Point fo Z B/D : TP(Bead B28)
(6) Check the SCAN(Y side) IC
(7) Check the DATA(X side) TCP IC
(8) Replace the CTRL B/D.

. Trouble Shooting

English

2-1. 1/2 of the screen doesn’t be shown

(1) Check the power connector of X B/D, corresponding to the

screen failure part.

(2) Check the connector between CTRL B/D and X B/D,

corresponding to the screen failure part.

(3) Replace the corresponding X B/D. For X B/D replacement,

check the TCP is correctly connected .

Relationship between screen and X B/D

Screen X B/D

Left of the Screen 1/2

Right X B/D

Right of the Screen 1/2

Left X B/D

Screen Display Form

2-2. 1/4 of the screen doesn’t be shown

Identical to 2-1

2-3. Screen doesn’t be shown as Data

TCP

(Include not be shown part of Data TCP

quantity or a part)

(1) If there is no change after replacement of cable between

CTRL B/D and X B/D, replace CTRL B/D.

(2) Check Data TCP failures, corresponding part to screen

failure, and if no defects, connect the corresponding TCP
again.

(3) If the corresponding Data TCP fails, Module should be

replaced.

Screen display form

(Anything of the 16 Data TCP can be shown beside below
pictures)

2-4. It is generated Unusual Pattern of Data

TCP IC unit

(1) If it happens as line shape or dot shape, screw the X B/D

again, and if no change, replace the X B/D.

(2) In case of <case 1>

- Check the connection of Data TCP connector

- Replace the corresponding X B/D or CTRL B/D.

(3) In case of <case 2>, <case 3>

- Check connector connecting the CTRL B/D to relevant
X B/D.

- Replace the relevant X B/D or CTRL B/D.

Screen Display Form

2. Hitch Diagnosis Following Display Condition

case1

case2

case3

After separating TCP HEAT SINK, replace Silicon tape when the TCP IC marks in Silicon tape of H/S
feel hard.

(silicon tape, 7250SC0010A, TP-2460 DOW CORNING 8.0MM T0.75 NON GRAY (L 218.4)

THERMAL PAD FOR 42X3 H/S)

i) Left of the Screen(1/2) ii) Right of the Screen(1/2)

Display
Not Display

All

Partial

Not at all

2-5. Screen doesn’t be shown at all as

Scan FPC.

(1) It’s may be a problem between Scan FPC and Y DRV B/D.
(2) Check the connection of Y DRV B/D and Scan FPC.
(3) If the Scan IC is failed, replace the Y DRV B/D.

Screen Display Form

Check a method of SCAN IC

Change the Vpp Pin into ANODE and GND Pin into CATHOD
and then test the Diode with forward or reverse direction.

2-6. Regular stripe is generated at regular

internal on the whole screen.

(A vertical stripe flash at especial
color)

(1) This is a problem about CTRL B/D.
(2) Replace the CTRL B/D.

Screen Display Form

2-7. Data copy is generated to stripe

direction.

(1) In this case, it’s due to incorrect marking of scan wave.
(2) Replace the Y DRV B/D or Y B/D.

Screen Display Form

one ten of
screen

The screen display is very good

The screen display is poor

The screen has a vertical line

with regular gap

<Display Pattern>

<Case 1 : Entire Copy>

<Case 2 : Top Copy> <Case 3 : Bottom Copy> <Case 2 : Entire Copy>

English

2-8. The screen has one several vertical

line.

(1) In this case, It isn’t a problem about CTRL B/D or X B/D.
(2) It may cause followings.

- It’s out of order a panel

- Open or short of DATA TCP attached panel

- It’s out of order a DATA TCP IC attached panel

(3) Replace Module.

Screen Display Form

2-9. The screen has one or several

horizontal line.

(1) In this case, it isn’t a problem about CTRL B/D or Y B/D.
(2) It may cause followings.

- It’s out of order a panel

- Open or short of SCAN FPC attached panel

- It’s out of order a SCAN IC attached panel

(3) Replace Module.

Screen Display Form

2-10. Lightness of screen is wholly darken

though there is input-signal-pattern

(1) In this case, Z B/D operation isn’t complete.
(2) Check the power cord of Z B/D.
(3) Check the connector of Z B/D and CTRL B/D.
(4) Replace the CTRL B/D or Z B/D.

2-11. The screen displays other color

partially on full white screen or
happens Mis-discharge partially on
full black screen.

(1)Check the declination of Y B/D set up, set down wave.
(2)Measure each output wave with oscilloscope(more than

200MHz) and compare the data with below figure data. The
slope of set_up in B/D is VR3, The slope of set_down is
VR2, The voltage of -Vy and Vscan is respectively PS101
and PS 102. for these, Vzd of Z B/D adjust as indicated in
Label by making Z B/D of Waveform variable.

- Measuring Point of Y B/D : Waveform on Y DRV B/D

- Measuring Point of Z B/D : B28

The set value of above A and B can be adjusted with in the

variable range considering the mass production capability
because it is a Typ. Value.

2-12. It doesn’t display a specified

brightness at specified color

(1) Check the connector of CTRL B/D input signal.
(2) Replace the CTRL B/D.

It may show several vertical lines
in a quarter or other division part
of screen including left case.

It may show several horizontal lines
including left case.

3. Checking for Component Damage

3-1. Y IPM(IC18) or Z IPM(IC2) Damage

(1) When the internal Sustain FET or ER FET of Y B/D

IPM(IC18) or Z B/D IPM(IC2) is damaged, screen doesn’t
be shown or Mis - discharge of partial screen is generated.

Test Point : Enlarge after measuring

GND ~ Waveform(Y DRV B/D),
GND ~ B28(Z B/D).

Wave format : Y DRV B/D in Waveform or B28(Z B/D)

has no output wave.

3-2.

FET Ass’y(Y B/D : HS2) Damage

(1) When Set_Up FET(2nd FFT of HS2 ) is damaged, screen

doesn’t be shown.

O Test Point : Enlarge after measuring

GND ~ Waveform(Y DRV B/D)

O Wave format : As shown fig. 2

(2) When Set_Down FET/Pass_Top FET(1st, 3rd, 4th, 5th

FFT of HS2 ) is damaged, Mis - discharge of entire screen
is generated.

O Test Point : Enlarge after measuring

GND ~ Waveform(Y DRV B/D)

O Wave format : As shown fig. 3

Set up waveform
does not come out

<Fig. 3 When the Set_Down FET is damaged>

<Fig. 1 IPM Normal Output Wave>

Set up waveform
does not come out

<Fig. 2 When the Set_Up FET is damaged>

English

3-3. SCAN IC(Y DRV B/D : IC1~10) Damage

(1) In case of SCAN IC poor, one horizontal line may open

at screen.

O Test Point: Enlarge after measuring

GND ~ Output ICT on Y DRV B/D

O Wave format : As shown fig. 4

(2) Screen may not shown when SCAN IC is damaged by

SCAN IC poor, external electricity or spark.

O Test Point : Enlarge after measuring

GND ~ Output ICT on Y DRV B/D

O Wave format : Output wave format isn’t output

(You can see the damage for Y DRV B/D’s

SCAN IC)

(3) In case of shorting the SCAN IC output by a dust, foreign

substance, it may overlap two horizontal lines on screen.

O Test Point : Enlarge after measuring

GND ~ Output ICT on Y DRV B/D

O Wave format : As shown fig. 5

3-4. TCP Damage

(1) In case of shorting or opening the IC output of TCP, it may

show one or several vertical lines.

O Test Point : Enlarge after measuring

Output TP of GND ~ TCP

O Wave format : As shown output fig. 7

In case of normal wave output, when STB signal is
generated, maintain High output. And when STB signal

is generated again must be fall Low.
But when IC of TCP is poor, STB signal is not generated
Output falls with Low.

Remove SR before measuring because the output TP of TCP
is covered with SR. Insulate again with insulating tape after
measuring.

<Fig. 4 When SCAN IC is poor>

7us

60V

<Fig. 6 SCAN IC Normal Output Wave >

<Fig. 5 When SCAN IC output is short>

<Fig. 7 When IC output of COF is poor>

(2) In case of IC damage, corresponding IC inside of TCP,

pictures by IC unit inside of TCP will not appear or Mis ­discharge. In most cases, the burnt mark can be seen
when IC failure occurs.

O Test Point : Enlarge after measuring output of GND ~ TCP
O Wave format : Output wave doesn’t come out

3-5. Crystal(CTRL B/D : X1) Damage

(1) When Crystal is damage, the screen doesn’t be shown.

O Test Point : Enlarge after Measuring

3pin of GND ~ Crystal(CTRL B/D: X1)

O Wave format : Output wave doesn’t come out

(2) In case of unusual launch of the Crystal, it may blink the

screen.

O Test Point : Enlarge after Measuring

3pin of GND ~ Crystal(CTRL B/D: X1)

O Wave format : As shown fig. 10

<Fig. 10 When Crystal is poor>

<Fig. 9 Crystal Normal Output Wave >

<Fig. 8 TCP Normal Output Wave >

English

Critical Components List

(1) The critical components list of PDP42X3#### Model is as below.
(2) A component of mark is important to keep product’s security. Therefore in exchanging a component, appointed component is

necessary used.

(3) is an abbreviated word which is instead of <Safety>mark.

English

Records of Revision for Boards, components and ROM DATA

1. Boards

No.

1
2
3
4
5
6

Date

2005.09.27

2005.09.27

2005.09.27

2005.09.28

2005.09.28

2005.09.28

Part Number

6871QCH077A
6871QDH117A
6871QYH053A
6871QZH056A
6871QLH059A
6871QRH068A

Note

Initial Product
Initial Product
Initial Product
Initial Product
Initial Product
Initial Product

Board

CTRL B/D ASSY(LVDS)
Y DRV B/D ASSY
Y SUS B/D ASSY
Z SUS B/D ASSY
X LEFT B/D ASSY
X RIGHT B/D ASSY

No.

1
2
3
4
5
6
7
8
9

10

Date

2005.10.01

2005.10.01

2005.10.01

2005.10.01

2005.10.01

2005.10.01

2005.10.01

2005.10.01

2005.10.01

2005.10.01

Part Number

4921QP1041A
4921QP1041A

4921QF5005A
6871QEH029A
6871QEH023G
6001QV0007A

6212AB4610A

0ILNR00150A

0ILMRFE001C

6630X60132A

Note

Initial Product
Initial Product
Initial Product
Initial Product
Initial Product
Initial Product
Initial Product
Initial Product
Initial Product
Initial Product

Board

Y SUS IPM(IC18)
Z SUS IPM(IC2)
Pass TOP/Reset heat-sink Ass

y
DDPACK (PS101)
DDPACK (PS102)
MCM LGPCMx05A
CRYSTAL(X1)
TCP
80ch scan IC
98PIN CONNECTORYSUS IPM(IC18)

2. COMPONENTS

English

3. ROM DATA

No.

1

Date

2005.05.01

Contents

External Type LVDS Initial ROM Data

ROM Data Version

50X3ST01B

November, 2005

Printed in Korea

GPN05SM002D