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S/M NO. : DSP220PEF0
Service Manual
42" PLASMA PDP TV
CHASSIS : SP-220P
Model : DPP-42A1LASB
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.
Contents
I. Parts with exception of MODULE
1. Safety Precaution 2
2. Product Specification 3
2-1. SPECIFICATION 3
2-2. Available Input Signal 5
2-3. Remote Control Setup Code 6
3. The Features of Inside 27
4. DPP-42A1LASB Block Diagram 28
5. Default Setting in User Menu OSD 29
5-1. Picture Mode 29
5-2. Sound 29
5-3. Screen 30
5-4. Features 30
6. Service Mode 31
7. Power PCB 33
7-1. Input and Environmental Requirement 33
7-2. Output Characteristics 33
7-3. Function of Protection 33
7-4. Connector Specification 34
8. Power Adjustment 35
8-1. Vs (Sustain Voltage) 35
8-2. Vs (Adress Voltage) 36
8-3. 5Vcntl 37
9. Noticeable Points While Assembling 38
10. Software Upgrade Method 41
11. Trouble Shooting 44
12. Assembly List 59
13. STRUCTURE OF PDP SET 61
14. EXPLODED VIEW 66
II. Parts of MODULE
1. Confirmation Manual
2. Repair Manual
-1-
I. Parts with the exception of MODULE
1. Safety Precautions
1. Safety Precautions
(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, after
checking 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.
Picture 1-1. Panel Gas Exhaust Tube
(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.
-2-
2. Product Specification
2-1. SPECIFICATION
ITEM SPECIFICATION REMARK
1. GENERAL
1-1. MODEL NO DPP-42A1LASB
1-2. CHASSIS NO SP-220P
1-3. SCREEN SIZE 42" (16:9)
1-4. COUNTRY Europe
1-5. RESOLUTION 852(H) x 480(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 Unbalanced (DIN Standard)
3) RECEPTION CHANNEL
VHF LOW : E2 ~ S6 Ch.
VHF HIGH : S7 ~ S36 Ch.
UHF : S37 ~ E69 Ch.
L'-SECOM : 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-
Product Specification
ITEM SPECIFICATION REMARK
3-10. POWER CONSUMPTION 270W
3-11. RS-232 CONTROL RS-232 Communication (EXTERNAL UPGRADE)
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 18 Languages (English, Greek, Dutch, German, Russian, Rumanian,
Swedish, Danish, Finnish, Norwegian, Spanish, Italian, Franch,
Polish, Portuguese, Czech, Hungarian, Slovakian)
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 852(H)X480(V)
4-4. DISPLAY COLOR 1,073,000,000 Colors ( 10bits for each RGB)
4-5. CELL PITCH 1.08(H) x 1.08(V)mm (1 Pixel = a Set of RGB Cells )
4-6. PEAK LUMINANCE 1500cd/m2(WITH FILTER GLASS)
4-7. CONTRAST RATIO 10000:1 (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
(R-52M17) Power, Universal Selection (TV, VIDEO/DVD, CATV/SAT),
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
-4-
Product Specification
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
35.156 56.250 VESA O O
800 X 600
37.879 60.317 VESA O O
1024 X 768 48.363 60.004 VESA O O
(2) Component
1080i 50 / 60Hz
720p 50 / 60Hz
576p - 50 / 60Hz
480p - 50 / 60Hz
(3) Video
PAL, PAL M, PAL N
NTSC, NTSC 4.43
SECAM
-5-
Product Specification
2-3. Remote Control Setup Code
-6-
Product Specification
VCR
Maker (BRAND) NAME CODE NUMBER (3DIGIT) LIST
CANON 147
CAPEHART 061
CARENA 065
CARREFOUR 009
CASIO 039 148
CATHAY 021
CATRON 061 171
CGE 039 044 090 133 148 155
CIHAN CLARIVOX 155
CIMLINE 029
CLATRONIC 029 061 171
COMBITECH 033
CONDOR 021 061 155 171
CONTINENTAL EDISON 044 090
CORVUS 148
CRAIG 008 056
CROSLEY 160
CROWN 009 021 029 061 064 171
CROWN/ ONWA 148
CURTISMATHES 060
CYRUS 175
DAEWOO 001 009 021 033 061 064 155 171
DANSAI 021 029 055
DAWA 155
DAYTRON 021 061
DE GRAAF 113 177
DECCA 039 044 047 065 090 148 155 166 175
DECCA(UK) 054
DEGRAAF 015 039 049 054 065 113 148
DEITRON 021
DENKO 029
DENON 113
DESMET 155
DIAMANT 055
DIXI 078
DOMOH 155
DORIC 160
DUAL 021 039 044 065 090 112 148 155
DUMONT 015 039 054 065 148 155 175 189
DYNATECH 039 148
ELBE 021 036 148
ELCATECH 029
ELIN 056 113 155
ELSAY 029
ELTA 021 029 148
EMERSON 009 011 029 032 039 060 073 127 148 155
ESC 021 056 057 061 064
ESSELTE 148
ETZUKO 029
EUROMAN 155
EUROPHON 061
FENNER 061 155
FERGUSON 016 021 023 039 044 090 094 100 104 108 112 130 131 165
FIDELITY 029 039 056 148 162
FINLANDIA 015 039 049 054 065 113 175
-7-
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
-26-
3. The Features of Inside
DPP-42A1LASB Inside Features
-27-
4. DPP-42A1LASB Block Diagram
-28-
5. Default Setting in User Menu OSD
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
DVI & PC Input - Only brihgtness and contrast are available.
2) Default value of other functions in picture mode
Function Default Value
Colour Temp Normal
N.R. NR1
CTI On
N.R. means the noise reduction
DVI & PC don't support N.R. and CTI functions
2. Sound
1) Mode
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
2) Default value of other functions in sound mode
Function Default Value
Balance 0
Effect Off
AVC Off
-29-
Default Setting in User Menu OSD
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
H. Position, V. Position, and Auto screen size is available only in PC mode.
4. Features
1) Mode
Function Background Language Child Lock MGDI Auto Power
Default Value 10 English Off On Off
DVI & PC don't support MGDI function.
2) Time Setting
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
3) ISM
Function Pixel Shift Low Bright Image Invert
Default Value Off Off Off
-30-
6. Service Mode
To enter SERVICE MODE,
A. Press " 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.
1. Default Value of Pw318B_1 and Pw318B_2
Sub Bias Sub Gain Bias R Bias G Bias B Gain R Gain G Gain B
Pw318B_1 32 12 25 23 38 12 16 20
Pw318B_2 32 12
1) Pw318B_1
Sub Bias : For BRIGHTNESS adjustment (All inputs)
Sub Gain : For CONTRAST adjustment (All inputs)
Bias R : For R BRIGHTNESS adjustment (All inputs)
Bias G : For G BRIGHTNESS adjustment (All inputs)
Bias B : For B BRIGHTNESS adjustment (All inputs)
Gain R : For R CONTRAST adjustment (All inputs)
Gain G : For G CONTRAST adjustment (All inputs)
Gain B : For B CONTRAST adjustment (All inputs)
2) Pw318B_2
Sub Bias : For DVI BRIGHTNESS adjustment
Sub Gain : For DVI CONTRAST adjustment
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
RGB offset values will be set by executing `RGB Auto Cal' in service mode.
YPbPr offset values will be set by executing `YPbPr Auto Cal' in service mode.
-31-
Service Mode
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.
3. Pw3300_2 & Pw2250 4. Msp34X0
AV Brt AV Cont Function Sc pScale Fm pScale Nic pScale
Pw3300_2 127 75 Default Value 21 25 51
Pw2250 127 75
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
5. Misc
Function TV Auto Off TXT Lang TXT T/F
Default Value On Auto TOP
Tst Ptrn AT shows five cycled patterns (white, black, red, green, blue) every 1
minute automatically
Tst Ptrn MA shows five cycled patterns manually by pressing volume up key.
6. Panel
Function Sync Mode Bright Mode Power Mode Gamma Mode Panel Temp
Default Value AUTO 100% 100% 2.2N **.*
Panel Temp indicates the current temperature of the panel.
7. Reset
Level 1 Resets all data in E2PROM other than HDCP key, EDID, RGB offset
and YPbPr offset of Pw3300_1.
Level 2 Resets all data in E2PROM other than the exception of Level 1 and
Pw318B_1.
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.
-32-
7. Power PCB
1 Input and Environmental Requirement
Input Requirement Description Environment Requirement Description
Norminal Input Voltage AC100V to AC240V Operating Temperature Range -10 to 50 deg.
Input Voltage Variation Range AC85V to AC276V Operating Humidity Range 10 to 90 %
Nominal Frequency 50 / 60 Hz Storage Temperature Range -20 to 60 deg.
Frequency Variation Range 45Hz to 65Hz Storage Humidity Range 10 to 90 %
Phase Single Cooling Condition Free Air
30A zero-pk max. at cold start
Inrush Current and any specified line, load and
temperature conditions
2 Output Characteristics
Output Norminal Voltage Load Ripple
Circuit Voltage [V] Adjustment [V] Variation [A] Noise [mV p-p]
Vs 175 160 - 190 0.4 - 1.5 500 / 500
Vd 60 55 - 65 0.01 - 2.5 300 / 300
5V (ctrl) 5.1 4.75 - 5.25 1.2 - 4.0 30 / 200
5V 5.1 4.75 - 5.25 0.5 - 4.5 50 / 200
DTV3.4V 3.4 -- 0.5 - 2.0 50 / 200
DTV2.5V 2.5 -- 0.2 - 2.0 50 / 200
33VT 33.0 -- 0 - 0.05 100 / 400
12V 12.0 -- 0 - 2.0 100 / 400
17V (Audio) 17.0 -- 0 - 0.7 100 / 400
-17V (Audio) -17.0 -- 0 - 0.7 100 / 400
5V (STBY) 5.0 -- 0.03 - 1.0 50 / 200
3 Function of Protection
Protection Output Circuit Trip Point Notes
Over Current Vs 1.7A or more Shut down by Under Voltage
Vd 3.0A or more Shut down by Under Voltage
5V (ctrl) 13.0 - 25.5A
Shut down by Under Voltage
5V (Total Current)
12V 1.76A or more Shut down by Under Voltage
-33-
Power PCB
33V 0.08A or more Shut down by Under Voltage
17V 1.0A or more Shut down by Under Voltage
-17V 1.0A or more Shut down by Under Voltage
Vs 220V or less Shut down
Vd 86V or less Shut down
5V (ctrl)
5.5 - 7.0 Shut down
5V
Over Voltage
12V 13 - 17V Shut down
33V 36 - 44V Shut down
17V 19 - 24V Shut down
-17V -19 - -24V Shut down
4 Connector Specification
Connector CN803 (PV) CN806 CN804 (PM) CN801 (PA) CN805 CN01
Type YMW025-10R B10P-VH YMW025-08R YMW025-06R B4P-VH YFW800-02
Maker YEONHO JST YEONHO YEONHO JST YEONHO
The number of pins 10 10 8 6 4 2
1 5V Stand_by LVP 3.4V 33VT 5Vctrl AC(L)
2 POWER GND 3.4V GND 5Vctrl AC(N)
3 GND GND GND +17 GND
4 GND GND GND GND GND
5 5V GND 2.5V GND
Pin No.
6 GND Vd 2.5V -17V
7 GND Vd GND
8 12V NC GND
9 12V Vs
10 GND Vs
-34-
8. Power Adjustment
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.
Input Video Pattern 100 IRE Full White Pattern
Figure 3. Voltage Adjustment Label
1. Vs (Sustain Voltage) : Discharge Sustain Voltage
Measurement Equipment : Digital Volt Meter (DC volt mode)
Adjusting TP : TP204
Adjusting Location : RV203
Optimum Adjusting Voltage : The voltage which is written in the label located in
upper right side of the PDP module. (Typical Voltage : 187V)
-35-
Power Adjustment
2. Va (Address Voltage) : Data Input Voltage
Measurement Equipment : Digital Volt Meter (DC volt mode)
Adjusting TP : TP206 (Vd)
Adjusting Location : RV204 (Vd ADJ)
Optimum Adjusting Voltage : The voltage which is written in the label located in
upper right side of the PDP module. (Typical Voltage : 65V)
-36-
Power Adjustment
3. 5Vcntl (5V control)
Measurement Equipment : Digital Volt Meter (DC volt mode)
Adjusting TP : TP203
Adjusting Location : RV201
Optimum Adjusting Voltage : The voltage which is written in the label located in
upper right side of the PDP module. (Typical Voltage : 5.2V)
-37-
9. Noticeable Points While Assembling
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.
Speaker AV3
Cable Cable
2 Turn 1 Turn
Speaker & AV3
Cable Allocation
(Separate with
Power Cable)
Speaker Cable
Speaker & KEY
2 Turn
Cable Allocation
(No Ring Core
in Key Cable)
2 Insertion of Ring Core to the Power Cable
- Insert a Ring Core(Filter EMI, S/N : 5PZCA2009A) to 8 pin and 6 pin Power
Cable
-38-
Noticeable Points While Assembling
3 LVDS Cable Connection
CABLE LVDS, S/N : 4856818800
a. 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.
b. VIDEO B/D part
-39-
Noticeable Points While Assembling
Shieldron Tape on SCART Input
Tape EMI, S/N : 485A100071
(Position: From top of Scart to Terminal Channel Gasket)
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)
-40-
10. Software Upgrade Method
1. Check whether MAIN PCB is connected to SUB PCB (PA901 to P901).
2. Connect 9-PIN serial cable to the serial port of the computer.
3. Connect the opposite end of the serial cable to RS-232C port of SUB PCB.
4. Run Flashupgrader.exe in the PC to excute the program as shown below.
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.
-41-
SOFTWARE UPGRADE Method
6. Select correct COM Port and Baud Rate(115200) as shown below. Then press Flash button to finish
setup.
7. Turn on the ac power and then upgrade program will start the download as shown below.
-42-
SOFTWARE UPGRADE Method
8. When the upgrading is complete, a window (below) will be opened. Press "Finish" button to complete
the process.
-43-
11. Trouble Shooting
Before starting Trouble Shooting
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.
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.
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
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)
Before replacing PCBs, you MUST turn the AC switch "OFF".
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)
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.
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.
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 I. `Service Mode' part). Check the screen
conditions and basic functions (remote control operation etc.)
After Back Cover is closed, redo HEAT RUN for at least one hour with Full
-44-
Trouble Shooting
White input using Test Pattern of Service Mode. Check the screen conditions
and basic functions.
Caution 1 !!
When disconnecting / connecting connectors, you MUST turn "OFF" the AC
power and check the direction and position of the connectors before
working.
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
Red LED Stand by state (ready for operating)
Green LED The set is turned on and operating
Shut Down While green LED, power PCB does not make any operating sound
or noise (i.e. Power relay does not operate normally)
Weak Discharge The screen looks like BLACK, but there are little discharged
cells on the screen
Abnormal Discharge Shows unexpected discharged cells on the image
No Signal OSD is working but no images are displaying
No Raster Not even OSD is displaying
-45-
Trouble Shooting
1 No Signal or No Raster
Check Start
Check AC connection
Does "No Signal" N Is a weak discharge N Check CN805, CN806
screen appear? detected in the screen? connectors
Check Power S/W ON
Y
Y
N N Check LVDS connection
Is the signal input Jack Check the connection of Is LVDS connection
between Digital B/D and
properly connected? Jack (PDP and AV device) correctly connected?
Main B/D
Y Y
Does input source (AV N Check other connections N
Check AV device Connect correctly
device) work? in all Boards. Are they OK?
Y Y
Is input selection in N Replace Main B/D
Correct the input mode
the correct mode? and/or Sub B/D
Y
Replace Main B/D
and/or Sub B/D
Done
-46-
Trouble Shooting
2 No Sound
Check Start
N
Is an image
Go to the section
displaying on
of `No Image'
screen?
Y
N Connect the jack and
Is the sound jack of external
check the sound
device properly connected?
again
Y
Y Cancel the mute and
Is mute key
check the sound
pressed?
again
N
Is speaker cable N Connect the cable
correctly connected? and check the sound
(check P603, P604) again
Y
N
Is input source
Replace Main B/D
TV?
Y
N Is the connection Y
Connect the cable between PA901 and
P901 OK?
N
Is sound OK? Replace Sub B/D
Y
N
Is sound OK? Replace speakers
Y
DONE
-47-
Trouble Shooting
3 Shut Down
Check Start
Turn AC power OFF
Open BACK COVER
Disconnect CN806 of Power PCB
Set Power PCB's voltage switch to LOW
Turn AC power ON (Stand By)
Turn on the set (Green LED)
Y N
Is `SHUT DOWN' occured?
Go to `Low Voltage Connect CN806 back and disconnect
Shut Down' part in this CN801, CN803,CN804, CN805
trouble shooting
Set Power PCB's voltage switch to HIGH
Go to `High Voltage
Shut Down' part in this
trouble shooting
-48-
Trouble Shooting
A) Low Voltage Shut Down
Check Start
Turn AC power off
Disconnect CN805 of Power PCB
Turn on the set after AC power on
N Y
Is `SHUT DOWN' occured?
Turn AC power off Turn AC power off
Connect CN805 back and disconnect
Replace Main B/D
CN 801, CN803, CN804 of Power PCB
Connect all connectors and set Power
Disconnect P6 of Y-SUS B/D
PCB's voltage switch to High
Turn on the set after AC power on
Done
Y N
Is `SHUT DOWN' occured?
Turn AC power off
Turn AC power off
Disconnect P2, P3 of Z-SUS
Connect P6 back and disconnect
P1 of Z-SUS B/D
Go to `Z-SUS, Digital
B/D, Data B/D Shut
Go to `Y-SUS, Scan B/
Down' part
D Shut Down' part
-49-
Trouble Shooting
B) Z-SUS, Digital B/D, Data B/D Shut Down
Check Start
Turn on the set after AC power on
N Y
Is `SHUT DOWN' occured?
Turn AC power off
Turn AC power off
Connect P2 of Z-SUS B/D
Replace Z-SUS B/D
Connect P2, P3 back and turn on the
Turn on the set after AC power on
set after AC power on
Y N
Y N
Is `SHUT DOWN' occured? Is `SHUT DOWN' occured?
Replace Digital B/D Replace Data B/D
Go back to `Low Voltage Shut Connect all cables and set
Down' part again voltage switch to High
Connect all cables and set Connect all cables and set
voltage switch to High voltage switch to High
Done
Done Done
-50-
Trouble Shooting
C) Y-SUS, Scan B/D Shut Down
Check Start
Disconnect P3, P4 of Y-SUS
Turn on the set after AC power on
N Y
Is `SHUT DOWN' occured?
Turn AC power off Turn AC power off
Replace Scan B/D Replace Y-SUS B/D
Connect all cables and set Connect all cables and set
voltage switch to High voltage switch to High
Done Done
-51-
Trouble Shooting
D) High Voltage Shut Down
Check Start
Disconnect P1 of Z-SUS
Turn the set on after AC power on
Y N
Is `Shut Down' occured?
Turn AC power off Turn AC power off
Disconnect three metal plates
between Y-SUS and Scan B/D Connect P1 of Z-SUS back
Turn the set on after AC power on Disconnect P5 of Y-SUS and
P3 of Z-SUS
Y N
Is `Shut Down' occured? Turn the set on after AC power on
Turn AC power off Turn AC power off Y N
Is `Shut Down' occured?
Replace Y-SUS B/D Replace SCAN B/D Turn AC power off Turn AC power off
Connect all cables Connect all cables
Replace Z-SUS B/D Replace Data B/D
and assemble the set and assemble the set
Connect all cables Connect all cables
Done Done
and assemble the set and assemble the set
Done Done
-52-
Trouble Shooting
4 No Key Operation
Check Start
Turn on the Power S/W (AC ON)
N Check the AC connection
Does LED turn on to red light?
Check the Power S/W on
Y
Turn on the set using remote control
Dees LED turn on to green N
Replace the Main B/D
light?
Y
Check the connector of Key PCB
Replace the Key PCB
N
Check if the Key is working Replace the Main B/D
Y
Done
-53-
Trouble Shooting
5 No Remote Control Operation
Check Start
Turn on the Power S/W (AC ON)
N Check the AC connection
Does LED turn on to red light?
Check the Power S/W on
Y
Turn on the set using remote control
Y
Check the other buttons of
Dees LED turn on to green light?
remote control
N
Y
Are all buttons
Check the battery of remote control Done
working properly?
N
N
Put the battery Is there battery?
Y Replace the Main B/D
Try to turn on the set using Key button
Y
Dees LED turn on to green light? Replace the LED PCB
N
Replace the Main B/D
Done
-54-
Trouble Shooting
6 No Key and Remote Control Operation
Check Start
Check the battery of remote control
Replace the LED PCB
Turn the AC Power ON
Try to turn on the set using
remote control
Y
Is the remote control
Replace the Key PCB
working?
N
Replace the Main B/D
Done
-55-
Trouble Shooting
7 Weak Discharge or Abnormal Discharge
Check Start
Check the Vs and Va of Power PCB
N
Are they normal? Set the values to typical voltages
Y
Y Do you still see the weak
Replace the Y-SUS discharge or abnormal discharge
on the screen?
N
Do you still see the weak N
discharge or abnormal discharge Done
on the screen?
Y
Replace the Z-SUS
Do you still see the weak N
discharge or abnormal discharge
on the screen?
Y
Replace the Scan B/D
Done
-56-
Trouble Shooting
8 Not Even Weak Discharge
Check Start
Is Power B/D working? Does it N
Replace the Power B/D
make normal sound?
Y
Replace Y-SUS, Z-SUS, N
Is the set correctly working?
and Scan B/D
Y
Done
9 Particular Input Signal (Video, PC, TV, or Component) Does Not Work
Check Start
Is the input Jack correctly N
Connect the input correctly
connected?
Y
Y
Is the input TV? Replace Main and Sub B/Ds
N
Replace Main B/D
Done
-57-
Trouble Shooting
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.
-58-
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 4853220100 BRKT POWER MODULE SECC T1.0
4 4854962100 BUTTON CH ABS GY
5 4859004060 CABLE FFC 1.0-K-30P-50MM
6 4859004460 CABLE LVDS 1001-31FC+1001-31FC+42A1LASB=560
7 4859003750 CABLE PHONE PLUG PLUG+CABLE 1365AWG26=150B
8 4856815900 CLAMP WIRE EGI T0.4+TUBE+PIE 3.2
9 4856818800 CLAMP WIRE AKKL-3140-A-RT
10 4850705N31 CONNECTOR 12505HS-05+12505TS+ULW=650
11 4850710S22 CONNECTOR 12505HS-10+12505HS-10+USW=600
12 4850706S35 CONNECTOR YMH025-06R+YMH025-06R+ULW=200
13 4850710S21 CONNECTOR YMH025-10+YMH025-10R+ULW=300
14 4850708S16 CONNECTOR YMH025-08R+YMH025-08R+ULW=300
15 4850710S23 CONNECTOR YH396-10V+YH396-10V+ULW=700
16 4850708S23 CONNECTOR YH396-08V+YH396-08V+ULW=250
17 4850704S63 CONNECTOR YH396-04V+YH396-04V+ULW=700
18 4850703N40 CONNECTOR 25045HP-03+25048HS-03+ULW=150
19 4850704N35 CONNECTOR YH396-04V+YH396-05V+ULW=700
20 4850710N24 CONNECTOR YH396-10V+YH396-09V+ULW=700
21 4850712S03 CONNECTOR 12505HS-12+12505HS-12+USW=850
22 48599DM001 CORD POWER AS EU LP-33+LS-60=2.0M(LF)
23 485AS11290 CTRL BOARD AS Digital BOARD
24 4855553900 DECO SENSOR PC
25 5PZCAT3035 FILTER EMI ZCAT3035-1330
26 5PZCA2009A FILTER EMI ZCAT2035-0930A
27 PTFEPWG089 FILTER EMI AS DPP-42A1LASB
28 4853823100 FRAME HORIZENTAL SECC T1.6
29 4851C02800 FRAME SUPPORT L AS 38232+38234
30 4851C02900 FRAME SUPPORT R AS 38233+38234
31 485A102280 GLASS FILTER M4203-JW1245
32 4957000800 HEAT SINK AL ANODIZHG+TAPE
-59-
Assembly List
33 4852090701 MASK FRONT ABS GY
34 4850M10410 MODULE PDP PDP42V7
35 4850M10110 MODULE POWER 1H217WA
36 PTMPMSG089 PCB MAIN MANUAL AS DPP-42A1LASB
37 PTSBMSG089 PCB SUB MANUAL AS DPP-42A1LASB
38 485A106070 SHIELDRON (5 AND 3)X85X1T(ANGLE)
39 485A106270 SHIELDRON 41X53X18T
40 48A8310000 SPEAKER SYSTEM SS-63A01
41 485A100071 TAPE EMI CU+NI T0.13 VER1
42 485A100571 TAPE EMI CU+NI 30X42XT0.2
43 4853633300 TERMINAL COVER A5052 T1.0
44 4853635200 TERMINAL PLATE A5052 T1.0
45 48B5353J17 TRANSMITTER REMOCON R-53J17 (AAA)
46 485AS11590 X-LEFT BOARD AS Data LEFT BOARD
47 485AS11690 X-RIGHT BOARD AS Data RIGHT BOARD
48 485AS11490 Y-DRV BTM BOARD AS Scan BTM BOARD
49 485AS11390 Y-DRV TOP BOARD AS Scan TOP BOARD
50 485AS11090 Y-SUS BOARD AS Y-SUS BOARD
51 485AS11190 Z-SUS BOARD AS Z-SUS BOARD
-60-
13. STRUCTURE OF PDP SET
-61-
STRUCTURE OF PDP SET
COMPONENT PICTURE REMARK
1). PDP MODULE
(With F/SUPPORT)
1a). Y-SUS B/D
1b). Z-SUS B/D
-62-
STRUCTURE OF PDP SET
COMPONENTS PICTURE REMARK
1d) Data
Relay
PKG(L)
1e) Data
Relay
PKG(R)
1f) Scan
Relay
PKG-T
1g) Scan
Relay
PKG-B
-63-
STRUCTURE OF PDP SET
COMPONENT PICTURE REMARK
1h) Digital
PKG
2) MAIN BOARD
3) SUB BOARD
4) POWER BOARD
-64-
STRUCTURE OF PDP SET
COMPONENTS PICTURE REMARK
5) FRONT MASK
6) FILTER GLASS
7) BACK COVER
-65-
66
DAEWOO ELECTRONICS CORP.
686, AHYEON-DONG, MAPO-GU,
SEOUL, KOREA.
C.P.O. BOX 8003 SEOUL KOREA
PRINTED DATE : Nov. 2005
PDP MODULE
SERVICE MANUAL
English
MODEL : PDP42V7####
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.
[PDP42V7#### Module]
CONTENTS
. Safety Precautions/Technical Feature
. Formation and Specification of Module
. Adjustment
. Trouble Shooting
1. Checking for No Picture
2. Hitch Diagnosis Following Display Condition
2-1. All or 1/2 of the screen doesn't be shown
2-2. Screen doesn't be shown as Data TCP
2-3. It is generated unusual pattern of Data TCP IC unit
2-4. Regular Stripe is generated about the quantity of one Data TCP IC or more
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. One or more stripe is generated on the screen
2-9. One or more horizontal line is generated on screen
2-10. Lightness of screen is wholly darken though there is input-signal-pattern
2-11. Different color is shown partially during full-white-screen or electric discharge is generated
during full-black-screen
2-12. Some lightness of some color doesn't not generated well
3. Checking for component damage
3-1. Y IPM(IC15) or Z IPM(IC2) damage
3-2. Pass Top FET(Y B/D: HS2) damage
3-3. FET Ass'y(Y B/D: HS1) damage
3-4. SCAN IC(Y DRV B/D: IC1~8) damage
3-5. TCP damage
3-6. Crystal(CTRL B/D: X1) damage
4. Shift breakdown component compatibility consideration
4-1. Scan IC follows in application, compatibility of Y DRV Top, Bottom B/D
. Block Diagram
. Safety Components List
. Records of Revision for Boards, Components and ROM DATA
* Annexing : Schematic Diagram
- 2 -
. Safety Precautions/Technical Feature
1. Safety Precautions (9) If the power cable is damaged, or if the connector is loose,
When servicing of PDP Module, it should be not enforced into do not use the product: otherwise, this can lead to fire or
another way aside next rule, or a unaccustomed person electric shock.
should not repairing.
When using/handling this PDP Module, pay attention to the (10) If the power connector or the connector of the power
below warning and cautions. cable becomes dirty or dusty, wipe it with a dry cloth.