1. PCB Component Level Repair
2007 Viera Plasma TV
PCB Component Level Repair
Hands-On Seminar
Presented by: Rodolfo Abuyuan
Panasonic Canada Inc.
May/June 2008

2. Purpose for this hands-on seminar
This hands-on seminar have been developed especially for field technicians involved in the repair of Viera Plasma TVs.
Its purpose is to impart repair know-how and troubleshooting skills mostly gained during actual repair of Viera PC boards.
Promote component level repair of Viera PC boards in the field.

3. Review: 2007 Model line up & Signal flow Block Diagram

4. 2007 PDP Line-up 2006 2007 1080p HD High End Model HD High End Model
TH-65PZ750U
TH-50PZ700U
TH-58PZ750U
TH-50PZ77U
1080p HD
High End Model
TH-58PZ700U
TH-42PZ700U
TH-42PZ77U
TH-50PZ750U
TH-58PX600
TH-50PX600
HD High End Model
TH-42PX600
TH-50PX77U
TH-42PX75U
TH-50PX60
HD Step Up Model
TH-42PX60
TH-50PX75U
TH-37PX60
TH-42PX75U
TH-42PD60
SD Leader Model
Derivative Model
TH-42PE7U

5. Different Points form Current models(50V)
50PX600/60
50PZ750/700 PX77/75
Only PZ series C1 C2 C3 C1 C2 C3
SS2
SS2
DTV Interface
Digital Signal Processor
DC-DC　Converter P P SU PA
Power SU
Power DC - DC -
Supply
Supply
Converter SS A SS SC DG
Sustain G SC
Sustain
Scan Drive DT
Drive
Scan Drive
Drive
Digital
Signal D
Processor
D-TV Interface D
Format
Converter SD SD
Format Converter
Plasma AI processor
Plasma AI
Processor H
SS3
SS3 HC C6 C5
AV Terminal C4
C1*
C2*
C3* GS G GK K S GS K S
At first this chart is about 50 inch for North America.
There are 3 different points from 2006 model.
1.Introduction of single scan system to 50“HD model except PZ series.
There are only 3 C boardｓ at lower side at PX series.
2.The function of DG,H,PA and DT board are combined to A board.
3.There is not G board on PX75.
Except PX75
(*)PZ series as follows
C1→ C6 　
C2→ C5
C3→ C4
Different points from current
1.Introduction of single scan system except PZ series.
2.The function of DG,H,PA and DT board are combined to A board
3.There is not G board on PX75

6. Input Source Signal Processor Panel Drive Brightness Contrast
Signal Circuit Summary:
Input
Source
Signal
Processor
Panel
Drive
Video
Brightness
Contrast
Sharpness
etc
Video
data
Picture
TV tuner
AV terminal
SD card
PC input
Video
Signal
Audio
Signal
Audio
Roughly speaking, signal circuit consists of 3 blocks.
3 blocks are, “Input Source”, “Signal Processor” with speaker, and “Panel Drive”.
This block diagram is basic and important information.
Now let’s start studying about video signal current.
Input source receives many type of signal.
Signals are for example, TV program ,DVD input and so on.
After receiving, these signals are separated to “video signal” and “audio signal”
at the “Input Source” block.
After separating, both signal are sent to next block, “Signal Processor.”
In this signal processor parts, Video signal will be adjusted for example brightness.
Video signal is converted to video data and sent to next block, “Panel Drive”.
On the other hand audio signal is amplified at this block, and sent to Speaker.
Please note this simply block diagram in this service seminar .
Speaker
Bass
Treble
Balance
Volume
Audio
Signal
Sound

7. Signal Circuit Overview:
In case of 50PX75
Input Source
Signal Processor
Panel Drive K S
SS2 SU GS A D SC
Panel SS
TV Tuner SD
AUDIO VIDEO
Comp
SS3
HDMI　　　 C1 C2 C3 PC
PZ750/700 only
SPEAKER
　（L/R）
<Back view>
Now this sheet is about 50 inch signal circuit overview of North America model.
Each board’s function are described on this sheet.
All input are received at A board.
There is not PC input terminal at PX75 model.
Input source like as TV broadcasting ,will be separated to video signal and audio signal at A board.
HDMI is connect to A board directly.
On A board, analogue signals are converted to digital signal and sent to D board.
On D board, all video signal is converted to “video data” and sent to “Panel drive”.
Discharge control of D board supply “scan control pulse” and “Sustain control pulse”.
Both will be supplied to each 2 board.
On A board, audio signal is amplified and output to speakers, same performance as PA board of 2006 model.
K : Remote Receiver / Power LED
S : Power switch
GS : SD Card Slot
Key Switch
A : DC-DC converter
Speaker Out, Sound Processor
AV terminal, AV switch
Digital Signal processor
Micon
HDMI Interface
D : Format Converter
/ Plasma AI Processor
/ Sub-Field Processor
SC: Scan Drive
SU: Scan Out (Upper)
SD: Scan Out (Lower)
SS: Sustain Drive
SS2: Sustain Connector (Upper)
SS3: Sustain Connector (Lower)
C1: Data Drive
C2: Data Drive
C3: Data Drive

8. Video signal processing:
In case of 50/42PX75 GS SD
Analog
Digital A
Front End
Pro
Tuner
Digital
Video
Input
Processor
LVDS(*1)
Transmitter
IC8001
Peaks
Lite 2
Main MICON
IC1100
VIDEO
SWITCH
10bit A/D
HDMI receiver
IC3001
IC4510
IC2601
Y,C / V
AV1
Y,C / V
Y,Pb,Pr
R,G,B :10Bit
To D board
AV2
Comp.1
Y,Pb, Pr
Y,Pb,Pr
Comp.2
As explained previously, H,PA,DT and DG boards are integrated to A board in North American model.
Therefore H boards performance, receiving input source succeeded to IC3001 of A board.
Out of this drawing, there is audio switch IC3101 is located on A board, too.
After through out the video switching, IC 4510 is 10 bit AD converter and HDMI receiver.
Next to IC4510, IC8001 is Peaks Lite 2, digital processing and made LVDS signal.
After this procedure, LVDS are sent to next D board.
LVDS stands for Low Voltage Differential Signaling.
LVDS excels in sending high density data signal with less noise.
Y/C
Monitor Out PC
Input
PZ750/700 only
<A Board>
IC3001 : VIDEO SWITCH
IC4510 : A/D CONVERTER (10Bit)
IC8001 : LVDS TRANSMITTER
IC1101 : MAIN MICRO PROCESSOR
HDMI1
HDMI2
(*1) LVDS : Low Voltage Differential Signaling

9. In case of 50/42PX75 D-Board: D IC9500 IC9900 To C1 Board LVDS
RECEIVER
Video Data
PICTURE
OUTPUT
I/P,FORMAT
CONVERTER
PLASMA AI,
S.F. PROCESSOR
DATA
DRIVER
LVDS Signal
From
・A board
(USA/CANADA)
・DG Board
To C2
Board
Video Data
C3 of 50V is supplied
Video Data through C2.
IC9200
IC9303
IC9901
CLOCK
FLASH
SDRAM
IC9003
MICRO PROCESSOR
DISCHARGE
CONTROL
CONTROL DATA 10bit
To C1 Board
Next to A or DG board, I’ll explain about D board in this sheet.
Basically D board is common use for each models.
Now lets start studying signal current.
From A or DG board, LVDS is sent to D board.
LVDS are received at IC9500 and sent to IC9900.
LVDS are proceeded to make the video data inside of IC9900.
On previous model, this procedure was done by 2 ICs.
This new model can proceed at 1 IC.
On the other hand, level converter IC were reduced for control signal.
To C2 Board
C3 of 50V is supplied
Video Data through C2.
SCAN CONTROL
IC9802
IC9803
To SC Board
SUSTAIN CONTROL
To SS Board
<D Board>
IC : LVDS RECEIVER / DISCHARGE CONTROL
IC : PLASMA AI / SUB-FIELD PROCESSOR
IC : DDR SDRAM
IC : CLOCK GENE.
IC : LEVEL CONVERTER (3.3V => 5V)
IC : FLASH MEMORY
IC : MICRO PROCESSOR

10. <Back side view>
Panel Drive 50V:
In case of 50PX
IC9300
VIDEO
DATA D 31
DATA
Processor SU
SS2 SC
IC6901
IC6902
IC6903
IC6904
IC6905
IC6906
96 Line
128 Line
96 Line SS
SCAN
Drive
Signal
VIDEO
DATA
128 Line
96 Line
SCAN
ELECTRODE
768Line
SUSTAIN
ELECTRODE
768Line
SUS
Drive
Signal
IC9500
96 Line
128 Line D 32
Discharge
Control SC 20
ICs
IC6951
IC6952
IC6953
IC6954
IC6955
IC6956
96 Line
<Back side view>
128 Line
ICs
SUS
CONTROL
PULSE
96 Line
128 Line
Voltage
Reg.
Voltage
Reg.
96 Line
DATA ELECTRODE
1366Line(R,G,B) D 20
This sheet describes 50PX panel drive.
At first , I’ll explain about video data signal flow.
Input video data was processed to video data on D board.
From D board, video data is sent to C board.
From D31 terminal, video data is sent to C11 terminal and supplied to C1 board.
From D32 terminal, video data is sent to C21 terminal and supplied to C2 board and C3 board.
On the other hand, Vda is supplied by P board and pass SS12 and SS33 terminal.
After passing SS board, it enter to C board at C33 terminal.
Video data is supplied to all 3 C boards.
Scan control signal can be supplied to SC board through D20 to SC20.
SUS control signal can be supplied to SS33 terminal through D32, C21,C33 terminal.
96 Line
128 Line
SS3
SS33 D
SCAN
CONTROL
PULSE
CB1
CB2
CB3
CB4
CB5
CB6
CB7
CB8
CB9
CB10
CB11 SD
CB12
SUS
CONTROL
PULSE
Drive IC(2) inside C 22 C 32 C 33 C１ C2 C3
C11
C21
VIDEO DATA & DATA TIMING PULSE
<SU Board>
IC6901-IC6906 : SHIFT RESISTOR (UPPER)
<SD Board>
IC6951-IC6956 : SHIFT RESISTOR (LOWER)

11. PC Board Recycling Component Level Repair

12. Adjustments Procedure:
These adjustment procedure is mandatory after replacing SC,
SS & P boards. It is also required if Panel was replaced.
I. Item preparation:
1. Input a white signal.
2. Set picture controls as follows:
Picture menu: Dynamic
P-NR: OFF
Aspect: 16:9
CAUTION:
Perform Vsus adjustment first.
Confirmation of Vscn voltage should be done after confirmation of
Vad adjustment.
When Vad = -105V, Vscn voltage is 35V +/- 4V.

13. II. Driver Adjustment TH42PX75:
Adjustment voltage

14. III. Initialization Pulse Adjustment:
Input White signal into the unit.
Set picture controls as follows:
Picture Menu: Dynamic
P-NR: OFF
Connect oscilloscope probe to test point TPSC1 (T2).
Adjust VR6602 to obtain 195 +/- 10 µsec for T2.

15. Some of the symptoms you may obtain if the adjustment
is not performed:
Several images maybe displayed at the same time.
Excessive brightness.
Low brightness.
Wrong hue/color.
Reduction of the life of the panel.

16. Adjustment necessary when PC board exchanged:
Adjust the following voltages using multimeter:
*Please refer to Panel label for set value.
Caution: Do not adjust Vsus below Ve to avoid damage to PCB.

17. No Power Troubleshooting Flowchart

20. SOS: Blinking Codes

21. SOS Overview:

22. ”Picture Trouble”.
There are 3 cases for picture trouble as follows.
1) Abnormal picture on local area
2) Abnormal picture on all area
3) No picture

24. Picture Trouble Abnormal picture 1. Local area 2. All area No picture
There are 3 cases for picture trouble as follows.
1) Abnormal picture on local area
2) Abnormal picture on all area
3) No picture

25. Abnormal Picture ( Sound OK )
Where
abnormal picture
is displayed ?
Upper half or
Lower half
Upper half
SU Board ( or D or SC )
Lower half
SD Board ( or D or SC )
Both Lower half
and Upper half
SS Board ( or D )
A) Local Area
Left / Right half or
Corner
Left / Right half
C Board ( or D or Panel )
Other case
e.g. All over the screen
Test Pattern Is
normally
displayed ? No
DG Board or A board or Panel (*1)
B) ALL Area
Yes
This figure is about “abnormal picture” with normal sound.
We classify this picture trouble, local area or all area.
According to these picture trouble symptom, we can find the defective board by signal flow above.
1st. Picture trouble of upper or lower half ,mainly SU or SD board defect.
2nd.Picture trouble of left half or right half, mainly trouble areas C board defect.
3rd.Picture trouble of both upper and lower half together, its SS board defect.
4th. In case of all area picture trouble, test pattern is useful to diagnose either A board or D board defect.
Because test pattern is generated by DG board.
Therefore if test pattern is not normal, its DG board defect.
If test pattern is normal, this trouble is caused by DG board defect.
A Board ( or D )
Note : *1 Panel gas leakage
Because of crack or some reason, gas leakage will start.
In this picture, gas leakage started at the left top of corner.
Finally, gas leakage will lead to “No picture “symptom with
buzz noise.

26. Trouble at Upper or Lower half 50 inch
Symptom :
No Picture, Picture noise, Full Horizontal line
(Actual symptom : Horizontal line)
Only PZ type D C C C
SS2 1 SU SS SC 1
Upper 2 SD
SU-board defect
(SC or D)
SS3
This figure is about upper half or lower half picture trouble.
In this chapter “picture trouble” is ”No Picture”, “Picture noise”, “Full horizontal line” etc.
In case of upper or lower half picture trouble, mainly SU or SD board is defective.
SU charges upper half and SD charges lower half.
In some case, SC or D board is defective.
Because D and SC supplies the signal to SU and SD board. C3 C2 C3 2
Lower
SD-board defect
(SC or D)
NG Area (Front view)

27. Trouble at Upper or Lower half 42 inch
Symptom :
No Picture, Picture noise, Full Horizontal line
(Actual symptom : Horizontal line) D 1 SU SS SC 1
Upper 2 SD
SU-board defect
(SC or D) C2 C1
Same as 50 inch case on previous page.
Upper half trouble is caused by SU defect and lower half trouble is caused by SD defect.
In some case. D or SC or SS board defect. 2
Lower
SD-board defect
(SC or D)
NG Area (Front view)

28. Trouble at Right or Left half 50 inch
Symptom :
No Picture, Picture noise, Full wide vertical line
Only PZ type D C3 C2 C１
SS2 1
Right half
D-board defect
(C1/ C3* ) SU 2 1 SS SC SD 2
Left half
SS3
D-board defect
(C2/C3/C1*/C2* )
C1*
C2*
C3*
This is right half or left trouble of 50 inch.
Right half or left half trouble is caused by D board defect.
Not C board defect.
Please refer to the drawing above, D board supply the video data signal to line 1 blue and line 2 green.
If line 1 signal has trouble ,only C1 board area, mark 1 has trouble.
If line 2 signal has trouble, both C2 and C3 board area, mark 2 has trouble.
Because, line 2 supply the signal to both C2 and C3 board.
This sheet shows only 50 inch right or left half picture trouble.
(*)PZ series as follows
C1→ C4 　
C2→ C5
C3→ C6
NG Area (Front view)

29. Trouble at Right or Left half 42 inch
Symptom :
No Picture, Picture noise, Full vertical line D SU 1
Right half SS 2 1 SC
D board defect
(C1 or Panel) SD 2
Left half
D board defect
(C2 or panel) C2 C1
This is right half or left trouble of 50 inch.
D board supplies video data to C1 and C2 board by line 1 and line 2.
If line 1 signal has trouble, C1 board area, mark 1 blue has trouble.
If line 2 signal has trouble, C2 board area, mark 2 green has trouble.
Different from 50 inch, C board defect and D board defect look same in 42 inch.
NG Area (Front view)

30. Trouble at some part of screen 50inch HD
Symptom :
No Picture, Picture noise, Full　vertical line D
SS2 1
Right
C1 board or Panel defect SU 3 2 1 SS SC 2
Middle
C2 board or Panel defect SD
SS3 3
Left
C3 board or Panel defect C3 C2 C1
This is 50 inch “ picture “trouble “at corner area.
Please refer to the drawing above.
When C1 board is defective, mark 1 blue is trouble.
Same as above,C2 defect cause mark 2 ,green area trouble
and C3 defect cause mark 3, orange area trouble.
NG Area (Front view)
NG Area (Front view)

31. Trouble at Corner area 50inch Full HD
Symptom :
No Picture, Picture noise, Full　vertical line D C3 C2 C1 1
C1 board or Panel defect
SS2 2
C2 board or Panel defect 3 2 1 SU 3
C3 board or Panel defect SS SC 4
C6 board or Panel defect 6 5 4 SD 5
C5 board or Panel defect
SS3 1 C4 C5 C6 6
C4 board or Panel defect
This is 50 inch “ picture “trouble “at corner area.
Please refer to the drawing above.
When C1 board is defective, mark 1 blue is trouble.
Same as above,C2 defect cause mark 2 ,green area trouble
and C3 defect cause mark 3, orange area trouble. 2
NG Area (Front view)
NG Area (Front view)

32. How to judge defective board D or DG.(A :North America)
Trouble at all area
(HD model 50 inch)
Symptom :
No Picture, Picture noise, Vertical line
Only PZ type D C C C A or DG
SS2 1
All area SU SS
D-board defect or
A/DG-board defect SC SD
SS3 1 C C C 2
This figure is picture trouble in all over screen.
(Different point of 50 and 42 is only number of C board)
Mainly picture trouble of all area is caused by D board or DG board defect.
For North American model, D board or A board defect.
Because, if panel driver is defective, for example, C board, it will be local area trouble.
So DG or D or SC or SS will be defective.
I’ll explain about accurate diagnosis later.
How to judge defective board D or DG.(A :North America)
D board has Test Pattern.
We can judge if DG or D board is failure by using Test Pattern.
A Board (or D board)
D Board
Defective Board
Normal
Abnormal
Pattern

33. The idea of vertical line problem
e.g. HD model 50inch C3
Buffer
Buffer C2 C1
Buffer
case1
case2
Thin vertical line
or 1 block no lighting
A number of blocks
no lighting
Panel
PDP panel (Driver IC) NG
D board ( or C board) NG
case1
case2
( or D board or C board )
1 Line
1 Block
2 Blocks
PDP Panel
PDP Panel
D-board ( or C-board) IC IC IC IC C4
Buffer
Buffer C5 C6
Buffer
NG Area (Front view)
This figure shows “the idea of vertical line problem.”
Look at “case 1” left figure.
This symptom is thin vertical line or no lighting 1 block.
These 2 symptoms are caused by 1 of driver IC trouble.
In this case, when driver IC is trouble, we must exchange the panel.
Because IC drivers are installed in the panel.
Next, please look at the “case 2” right figure.
If 1 C board’s area is defective, we diagnose that either C board’s buffer or D board defect.
Because it’s hardly that both driver IC on buffer trouble at the same time.
C board defect ratio is lower than that of D board.
Driver IC
Driver IC
Driver IC
Driver IC
FPC
FPC
Drive IC(2) inside
C Board
C Board
Buffer
Buffer or
(Actual symptom :
Vertical line)
D Board
D board

34. Test pattern for Abnormal Picture
How to show Test Pattern
1.While pressing "VOLUME-" button of the TV set,
press "RECALL" button of the remote control three times within 3 seconds.
2. Push button "1" of Remote Controller several times, and select “Aging mode”.
3. Press “3" button for next picture in forward direction.
Press “4” button for reverse direction.
Normal Test Pattern
1:R/G/B/W
(by DG Board)
2:White
(by DG Board)
3:White
(by D Board)
4:Red
5:Green
6:Blue
7:ON/OFF Aging
8:Ramp white
This figure is introduction of “ Test Pattern.”
Almost are same as last year.
But 2 patterns are added.
1)R/G/B/W generated at DG (or A)
2)Final one, white frame
16:White Frame
15:Scrolll
14:A and B zone
13:Color bar
12:1% window
11:Ramp Blue
10:Ramp Green
9:Ramp Red
Abnormal Test Pattern
e.g.

35. (*) Please refer to the next sheet
No Picture (Sound OK) No
ALL Input Source
Picture NG ?
Analog
TV NG
A Board
Only Digital
TV NG
A Board
Yes
Only HDMI
Input NG
A Board
When Multi window mode,
Right picture NG
A Board
This sheet is about “No picture” with sound OK.
At first, we have to check “all input source” is NG, or “some input source” is NG.
If only analogue TV program or only digital TV program is NG, Its their tuner defect
or A board signal processing part defect.
In multi window condition, if only right side window is troubled, it’s A board defect.
Because, sub signal processing part of A board defect.
If only HDMI input is NG and another TV program is OK, it’s A board defect.
Especially HDMI signal processing part of A board defect.
On the other hand, if all input source is NG,
You may understand that some of signal processing part is trouble, its not tuner or terminal problem.
To diagnosis defective board, removal D5 coupler is recommended.
After removing D5 coupler, white pattern will be started automatically.
This white pattern is generated in D board.
So if you can see white pattern, D board and panel drive are normal and DG board or another previous parts defect.
If you can’t see white pattern, its D board or panel drive defect.
After this diagnosis, if panel discharge occurs, panel operation is normal with signal problem.
White pattern is not generated in this case and its D board defect.
If panel discharge does not work, its panel drive side defect.
Its SC or SS board defect.
When removing
D5 coupler,
white picture
appears ? (*) No No
When removing
SU Board,
lower half picture
appears ? No
When removing
SD Board
upper half picture
appears ? No
SC Board
( or D )
Panel＊
Panel discharge
occurs ?
＊Slow leakage and finally
it cause no raster and buzzing noise
Yes
Yes
Yes
Yes
A Board ( or D )
D Board
SU Board
SD Board
(*) Please refer to the next sheet

36. Sound NG No ALL Input Source Sound NG ? No Only Analog TV NG A Board
Only Digital
TV NG
A Board
Yes
Only HDMI
Input NG
A Board
This sheet is about diagnosis of sound NG.
Sound NG is caused by A board defect, except speaker defect.
Because, A board has both tuner parts and sound signal process parts.
So if all input source sound is NG, its signal processing part of A board defect.
If some of input source sound is NG, its tuner or input terminal of A board defect. No
No sound of
all speaker?
Speaker or A board
Yes
A board

37. Removal D5 coupler Removal/Disconnect <Purpose> <Method>
In case of No picture problem (Sound OK), the defective board is mainly A or D board.
But in this case, test Pattern isn’t useful for diagnosis. Because, this symptom can not display OSD
and not enter to the Service Mode.
This method is possible to judge the defective board in this symptom.
<Method>
1. This white pattern is generated by IC9900 on D board.
2. When Power ON after removing D5 connector, white picture is provided to panel drive circuit.
Then, white picture automatically appears in normal situation.
<Diagnosis>
D board (SC or SS)
A Board (D board)
Defective Board
No Picture
White Picture
Pattern
A5 coupler
Note: In 2007 model, removal A5 is easier than removal D5
Because D board location is behind the A board.
This chapter is about ” removal D5 coupler “.
Most of ”No picture” is caused by D board or DG board defect.
If you remove D5 coupler with normal condition, white picture will start automatically.
Referring to board location (photo), removal A5 coupler is easier than removal D5 coupler.
Removal A5 is same meaning as removal D5.
Because no signal at D5 terminal.
Now, this white pattern is generated in D board.
So if both D board and panel drive are normal , we can see this white pattern.
In this case ,no picture and these parts above are normal which means DG board defect .
If we can’t see white pattern with this removal, D board, panel drive or panel is defective.
In some cases, SC or SS board trouble.
Therefore its useful to find defective parts roughly.
Removal/Disconnect
White Picture A D
IC1100
IC9900
IC9500
VIDEO DATA
MICRO
PROCESSOR
PICTURE
OUTPUT
New PLASMA AI
S.F. PROCESSOR
DATA
DRIVER
To C Board
IC8001
LVDS
Peaks Lite2
LVDS
TRANS
MITTER
LVDS
RECEIVER A 5 D 5

38. Self Check Indication:
<Purpose>
This self check system diagnose main parts.
Diagnosis result are indicated “OK” or “NG” like this figure on screen.
<Operation>
If you find diagnosis “NG” ,please replace the indicated parts.
Self Check
DT IC8001
Peaks Lite 2
A-board
ADV IC4510
A/D Convert. HDMI RX
DT OK
A-board
ADV OK
VSW IC3001
Video Switch
A-board
ADAV IC2106
Sound Processor
A-board
VSW OK
ADAV OK
ASW IC3101
Audio Switch
A-board
ASW OK
TUN1 TU8300
Tuner (PLL block)
A-board
ROMCORR.CHECKSUM;93
TUNE OK
TUN TU8300
Tuner (MTS block)
A-board
TUN OK
FE IC8302
Digital demodulator
A-board
Genex4 IC1100
GenX4 (STB MCU)
A-board
FE OK
Use the self check function for diagnose.
To enter the self check, press volume negative button on the TV unit and OK button
on the remote control at the same time for more than 3 seconds.
If there is NG parts, they will be displayed like as above figure.
MEM1 IC1101
EEPROM (GenX4)
A-board
Genex OK
MEM2 IC8503
EEPROM (Peaks)
A-board
Copyright 2007 Matsushita Electric Industrial CO.,Ltd.
PANEL IC9003
MICON
D-board
TEMP IC9002
TEMP SENSOR
D-board
<How to enter>
Press volume down button on the TV unit and OK button
on the remote control at the same time for more than 3 seconds.

39. Troubleshooting Hints (Technical Tip/Bulletin):
Plasma TV PCB
Troubleshooting Hints (Technical Tip/Bulletin):
Please download pdf files

40. Thank you