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Technical Guide
Plasma
(GPH11DU Chassis)
HD Models
Troubleshooting Handbook
Model : TH-42PX80U
TH-50PX80U
Panasonic Technology and Service Company
National Training
This page is purposely left blank.
2
Table of Contents
Subject Page Subject Page
Connector's Location (TH-42PX80U) 5 No Picture\No OSD 28
Power LED's Response to Shutdown Operation 7 No Sound 29
LED blinks 1 time 8 Troubleshooting for Picture Problems 31
LED blinks 2 times 9 Diagnostic Method for Troubleshooting PDP 32
Television
LED blinks 3 times 10
Troubleshooting for Picture Trouble 33
LED blinks 4 times 11
Diagnosis for Picture Problem (All Over the Screen) 34~36
LED blinks 5 times (Quick Troubleshooting) 12
Diagnosis of Vertical Line Problem 37
LED blinks 5 times 13
Picture Trouble at Upper or Lower half 38
LED blinks 6 times 14
Picture Trouble at Right or Left half (50 Inch) 39
SU/SD Board Isolation Procedure 15
Picture Trouble at Right or Left half (42/37 Inch) 40
LED blinks 7 times 16
Picture Trouble in 50 Inch Models 41
LED blinks 8 times 17
Picture Trouble all Over the Screen 42
LED blinks 9 times 18
Examples of Symptoms and Remedies 44~49
LED blinks 10 times before pressing the power button 19-20
Self-check Procedure 50
LED blinks 10 times after pressing the power button 21-22
Reset 51
LED blinks 12 times 23
Driver Setup Adjustment 52~53
LED blinks 13 times 24
Dead part I 25-26
No Picture from one or all inputs (OSD and Sound OK) 27
3
Introduction
1. Basic concept of how to determine the defective board
1) Verification of voltages
Normally, when there is a power problem, shutdown occurs immediately.
So, to resolve a power problem, voltage checks are necessary before shutdown.
2) Check if the power comes up after disconnecting the board under suspicion.
If power comes up (*) after disconnecting a board, the board is defective.
(*) "Power comes up" equals "no shutdown".
2. Troubleshooting Video and Audio problems
3. Examples of video problems
4. Adjustment after PCB exchange
1) After exchanging the following boards, voltage adjustment is required.
P board, SC board, SS board => Please refer to the "Service Manual".
4
Connector's Location (TH-42PX80U)
5
1. Troubleshooting Shutdown Problems
CAUTION: Some steps requires removal of connectors and
sometimes PC boards removal. Do not let the TV run for more
than 30 seconds while connectors or boards are disconnected.
6
Power LED's Response to Shutdown Operation
Once
3.0sec (interval) Light
No Light
LED
Blinking Contents Check Point
times
1 STB5V sense time out A Board
2 15V line abnormality A Board (15V SOS)
3 3.3V line abnormality A Board (3.3V SOS)
4 Power Supply abnormality P Board (Power SOS)
5 5V line abnormality A Board (5V SOS)
Scan Driver (1) SC,SU,SD Board (SC Energy recovery circuit)
6 abnormality/DRV_RST C and A Boards Connections
7 Scan Driver (2) abnormality SC,SU,SD Board (SC Floating voltage area)
8 Sustain Driver abnormality SS Board (SS Energy recovery circuit)/Panel
9 Panel Status abnormality A Board (Panel Status DET)
10 REG. voltage abnormality A Board (A SOS, Tuner SOS)/SC/SS
12 Voltage for sound abnormality A Board (Sound SOS), C boards connections
13 Communication error with IC8001 A Board
7
LED blinks 1 time
Warning: Disconnect AC Power prior to
Trouble Mode Defective Board making any disconnection or
Communication Error A, GS
connection.
Disconnect GS52 on the SD Card Slot Board (GS board )
(See Figure 1). Plug in the TV and turn it on
No Is the power Yes
LED still
blinking?
Replace the GS Replace the A
board board
Figure 1
8
LED blinks 2 times
Warning: Disconnect AC Power prior to making any
disconnection or connection
Trouble Mode Defective Board (Possibility) (*1) = The reference number of the sustain data
connector is different in some of the models:
15V down SOS P, A, SC, SS Board (P > A, SC, SS)
TH-42PX80U = SS23
TH-50PX80U = SS23
Unplug the TV and disconnect CN SC20 and SC2. (*2) CAUTION: Before connecting P2/SC2 or
To isolate the SC board. Re-connect the TV and P11/SS11, discharge is necessary to prevent
turn the power on. potential shock caused by VSUS.
Does the No
Yes
power
SC Board
LED stay
on?
Is there
15V output
at CN P25
Yes No
pin 1 or 2 Unplug the TV.
Unplug the TV, reconnect SC20 and (*2)
before the Disconnect CN P25.
SC2 and disconnect CN P12 from the P
Unplug the TV, TV shuts
board and SS11 and SS23 (*1) from the
Re-connect CN down ?
SS board to isolate the SS board.
Remove the jumper at CN SS34 and P12, SS11, SS34,
install it across pin 8 and 10 of connector and SS23 (*1).
P12. Plug in the TV and turn the power on. Turn the TV on.
Is pin 1 or 2
Yes of the CN No
Is pin 1 or 2 of the CN P25
P25 shorted
Does the shorted to GND?
to GND?
Yes power No
LED stay
on?
SS Board A Board P Board A Board
Note: CN = Connector
9
LED blinks 3 times
Warning: Disconnect AC Power prior to
Trouble Mode Defective Board making any disconnection or
3.3V down SOS A Board
connection.
Replace the A board
Note: CN = Connector
10
LED blinks 4 times (TH-42PX80U)
Warning: Disconnect AC Power prior to
Trouble Mode Defective Board making any disconnection or
Power Supply SOS Primarily P board or possible A board
connection.
Turn the TV on.
Is pin
12 of CN P25
Yes No
on the P
P Board A Board
board high
before the TV
shuts down?
Note: CN = Connector
11
LED blinks 5 times (Quick Troubleshooting)
Warning: Disconnect AC Power prior to making any
disconnection or connection
Trouble Mode Defective Board (*1) = The reference number of the sustain data
connector is different in some of the models:
5V SOS P, C, SC, SS board or Panel (DDIC)*1 TH-42PX80U = SS23
TH-50PX80U = SS23
(*2) CAUTION: Before connecting P2/SC2 or
P11/SS11, discharge is necessary to prevent
potential shock caused by VSUS.
Disconnect CN P12 of the power supply board.
Measure the resistance of pin 1 of the lead
cable to ground.
Yes Is there a No Proceed to more extensive troubleshooting
Panel short to
of the slides that follow.
ground?
Note: CN = Connector
12
LED blinks 5 times (TH-42PX80U)
Trouble Mode Defective Board
5V SOS P, C, SC, SS board or Panel
Disconnect CN SC20 on the SC
board. Plug in the TV and turn it on
Connect
CN SC20. Disconnect Yes Does the No
CN SS23 (*1) on the power
Connect Does the SS Board
Yes No SS board. Plug in the LED stay
SC20 and power on?
TV and turn it on
disconnect LED stay
CN SC46. on?
Connect SS23 (*1).
Disconnect CN 31and A32 on the A
SC Board
board. With the TV disconnected
Yes Does the measure continuity between pin 5 of CN
No Connect A31 P25 and GND
power
LED stay and leave A32
on? disconnected.
Is pin 5 of No
Yes CN P25 Is pin 5 of No
Yes CN P25
Disconnect
SD Board shorted A31 and Is pin 5 of
shorted Yes No
(See SD to GND? connect A32. CN P25
board to GND? shorted
Isolation Disconnect to GND?
procedure CB1-CB4.
on slide Disconnect Disconnect
CN P25. P Board
15) CB5~CCB8
Yes Is pin 5 of
CN P25
No
Is pin 5 of shorted Yes Is pin 5 of No
Yes No CN P25
the socket to GND?
P25 shorted shorted
to GND? to GND?
P Board A Board C1 Board C2 Board Panel
Panel
Note: CN = Connector
13
LED blinks 6 times
Warning: Disconnect AC Power prior to making any
Trouble Mode Defective Board (Possibility) disconnection or connection
(*1) = The reference number of the sustain data
SC Energy Recovery SOS SC, A, P Board (SC >A> P ) connector is different in some of the models:
TH-42PX80U = SS23
TH-50PX80U = SS23
Disconnect (*2) CAUTION: Before connecting P2/SC2 or
connectors SC2, and SC20 P11/SS11, discharge is necessary to prevent
from the SC board. Plug in potential shock caused by VSUS.
the TV and turn it on. (*3) VSUS about 180V (Accurate voltage is provided
on the Panel Label)
(*4) Place a jumper across pin 8 and 10 of connector
P12. The unit will not enter the standby mode without
Yes Does the No the jumper.
Connect SC2 (*2) and
TV power
SC20. Plug in the TV
up and
and turn it on.
stay on?
Does the P
board output
SC Board No
Yes 15V at pin 1 of
P7 and Vsus at P Board
pin 1 of CN P2
before the TV
shuts down?
Clean and reseat the ribbon
cables between the A and the C
boards. Also reseat the cables
between the C boards. If
problem persists, replace the A
board
Note: CN = Connector
14
SU/SD Board Isolation Procedure
Unlike previous models of Panasonic Plasma TVs, the 2008 models are designed not to turn-on if either of the SU and
SD boards is disconnected. Disconnecting either causes the unit to shutdown and the power LED to blink 7 times.
Procedure to isolate the SU/SD board
For SU board: Disconnect connectors SC41/SU41, SU11/SD11.
For SD board: Disconnect connectors SC42/SD42, SC46/SD46, and
SU11/SD11.
Isolating the SU/SD board does not require the removal of its mounting
screws.
Place a jumper between "VF Ground" (labeled H.V. DANGER) on the SU
board or SD board and coil L801 on the SC board, see figure 2 and 3.
The jumper can be connected to the floating ground screws on the SU
board, which are located above and below connector SU41, see figure 2.
Caution: Before turning the unit on, confirm that the jumper is not
connected to a chassis ground screw, as this will cause severe damage
to the unit. Confirm proper connection by measuring continuity
between floating ground and chassis ground. The resistance should be
in the kilo-ohms range.
Figure 3
Figure 2
15
LED blinks 7 times (TH-42PX80U)
Trouble Mode Defective Board (possibility) Physically disconnect the SU board and the
SD board. (See instructions on slide 15).
SC Floating voltage SOS SC, SU, SD, P board (SC,SU,SD>P) Plug in the TV and turn it on.
Make sure the connectors P2/SC2, SC20/D20
are not loose and are seated properly.
Does the
With the SU board and the SD board
Reconnect the SD board only. No TV shut down Yes still disconnected, remove connectors
(See instructions on slide 15). and the power
SC2 and SC20 from the SC board
Plug in the TV and turn it on. LED
Plug in the TV and turn it on.
blink 7 times?
Does the
No Yes
TV shut down
and the power Does the
LED No TV shut down Yes
blink 7 times? and the power
LED
Disconnect the SD board and blink 7 times?
Replace the SU
board. reconnect the SU board. (See
instructions on slide 15). Plug
in the TV and turn it on.
Replace the SC board. Replace the A board.
Does the
No TV shut down Yes
and the power
LED
blink 7 times?
Replace the SD board. Replace the SD, and SU
board.
16
LED blinks 8 times
Trouble Mode Defective Board (possibility)
SS Energy recovery SOS/Panel SS, A board (SS>,A)/PDP
Disconnect
CN SS23 from the SS
board. Plug in the TV
and turn it on
Does the No
Yes No P Board
TV power
up and
stay on?
A Board
Yes Is the anode No
of D280 on
the SS board
high?
Panel
SS Board
Figure 4
17
LED blinks 9 times
Warning: Disconnect AC Power prior to
Trouble Mode Defective Board making any disconnection or
Panel Status D Board
connection.
Replace the A board.
18
The power LED blinks 10 times at plug-in (TH-42PX80U)
Trouble Mode Defective Board (Possibility) NOTE: When taking voltage reading, place your meter's probe on the
test point or pin indicated before connecting the TV to the AC line. The
Dead/No power P, A, GS, K voltage you intent to measure may only appear for a brief moment.
Warning: Disconnect AC NO Do the AC relays Yes
Power prior to making any click after the TV is plugged
disconnection or connection. into the AC line?
NO
Is Yes
there 3.2V at
pin 6 of connector P7 when the
TV is plugged into
the AC line?
Replace
The P board
NO Disconnect
connector A1 on the A board. Yes
Do the AC relays click after
the TV is plugged into
the AC line?
If cable between connectors K1
and A1 is OK, Replace the K board.
Reconnect
NO A1 and disconnect Yes
connector A51on the A board.
Do the AC relays click after
the TV is plugged into
the AC line? If cable between connectors GS52 and Go to the
A51 is OK, Replace the GS board. Next slide
Replace
The A board
19
The power LED blinks 10 times at plug-in (TH-42PX80U)
NOTE: When taking voltage reading, place your meter's probe Warning: Disconnect AC Continue from the
on the test point or pin indicated before connecting the TV to the Power prior to making any previous slide
AC line. The voltage you intent to measure may only appear for disconnection or connection.
a brief moment.
Is
Disconnect Disconnect
connector P6 on
No there 15V at Yes connector A1 on
pin 7 of connector P6/A7 when
the P board. Plug the A board.
the TV is plugged into
in the TV Plug in the TV
the AC line?
No Is there 15V at pin 7 Yes Replace
No Yes
of connector P6/A7 when the TV Does the TV shut down?
is plugged into the the K board.
AC line?
Reconnect
Replace Replace connector A1 and
The P board The A board disconnect connector
A51on the A board.
Plug in the TV
No Yes
Replace the Does the power LED still Replace
GS board. blink 10 times? The A board
20
LED blinks 10 times after pressing the power button (TH-42PX80U)
Trouble Mode Defective Board Warning: Disconnect AC Power prior to making any
disconnection or connection
SUB 5V SOS, Main 3.3V SOS (*1) = The reference number of the sustain data
P, A, SC,SS, GS, G Board connector is different in some of the models:
DTV 9V SOS, Tuner Power SOS
TH-42PX80U = SS23
TH-50PX80U = SS23
Disconnect connectors SC2 and SC20 on the
Scan (SC) board. Plug in the TV and turn it on. (*2) CAUTION: Before connecting P2/SC2 or
P11/SS11, discharge is necessary to prevent
potential shock caused by VSUS.
(*3) VSUS about 180V (Accurate voltage is provided
on the Panel Label)
No Does the unit shut Yes (*4) Place a jumper across pin 8 and 10 of connector
down and the P12. The unit will not enter the standby mode without
power LED blinks the jumper.
10 times?
Unplug the TV and re-connect CN SC2(*2), and SC20
on the SC board. Disconnect CN SS11(*2), SS23, and
SS34 on the SS board and CN P12 of the P board.
Install the jumper from SS34 between pin 8 and 10 of
CN P12. Plug in the TV and turn it on.
Replace
The SC board
Unplug the TV and re-connect CN SS11 (*2), No Does the power Yes
SS23 and CN SS34 on the SS board and CN LED stay on Replace
P12 on the P board. Disconnect CN A51 and A52 when the TV is The SS board
on the A board. Plug in the TV and turn it on. turned on?
Yes
No Does the power LED stay on
Go to the when the TV is turned on? Go to the
Next slide (A) Next slide (B)
Note: CN = Connector
21
LED blinks 10 times before pressing the power button (TH-42PX80U)
Continue from the Warning: Disconnect AC Continue from the
previous slide (A) Power prior to making any previous slide (B)
disconnection or connection.
Unplug the TV and re-connect CN A52 on
the A board (Do not connect CN A1 yet).
Unplug the TV and re-connect CN A52 and A1 Plug in the TV and turn it on.
on the A board. (*5) Measure Vsus (*3) at pin
1 of CN P11 and Vda (Approx. 75V) at pin 1 of
CN P12. Plug in the TV and turn it on.
No Does the power LED stay on
Yes
when the TV is turned on?
No Yes
Are
any of these Replace
Replace
voltages The G board
The GS board
missing?
Warning: Disconnect AC Power prior to making any disconnection or
connection
Replace Replace (*1) = The reference number of the sustain data connector is different
The A board The P board in some of the models:
TH-42PX80U = SS23
TH-50PX80U = SS23
(*2) CAUTION: Before connecting P2/SC2 or P11/SS11, discharge is
necessary to prevent potential shock caused by VSUS.
(*3) Make adjustments according to the value provided on the label
normally found above the SC board or the SS board
(*4) Place a jumper across pin 8 and 10 of connector P12. The unit
will not enter the standby mode without the jumper.
(*5) = When measuring Vsus and Vda, make sure to place the
meter's probe on the pin indicated before turning the TV on. This
way, a voltage reading can be obtained before the TV shuts down.
Note: CN = Connector
22
LED blinks 12 times
Trouble Mode Defective Board (Possibility) Warning: Disconnect AC Power
prior to making any disconnection
Sound SOS Speakers, A Board
or connection.
Disconnect the Left and Right
speakers connectors. Plug in the TV
and turn it on
Does the power
No LED stay on
Yes
when the TV is
turned on?
Replace Check the speakers and
The A board the speaker's wires.
If the speakers and the wires
are ok, check P15V (Pin 1 of P25)
and follow 2 blinks instructions
23
LED blinks 13 times
Warning: Disconnect AC Power prior to
Trouble Mode Defective Board making any disconnection or
Communication error with IC8001 A Board
connection.
The A board is defective
24
No Power/Dead Unit
Trouble Mode Defective Board (Possibility)
Dead/No power P, A, GS, K NO Do the AC relays Yes
click after the TV is plugged
into the AC line?
Yes Is there 5V at
NO Place your meter
pin 5 of connector A7/P7
on pin 11 of connector
when the TV is plugged into
A25 or P25.
the AC line?
Unplug the TV
Check connection between P12 and
SS12. Also check for missing jumper on
CN SS34 on the SS board. If jumper on
Yes Yes
Is there continuity NO connector SS34 is present, replace the
between pins 8 and SS board.
10 of connector P12
Is there 3.2V Yes
of the P board? NO
when the power
button is
pressed?
Unplug the TV and disconnect
connector A7. Place your meter on pin 5
of connector P7. Plug in the TV and turn NO Does
it on. pin 6 of connector
A1 momentarily go from Yes
4.5V to 0V when the
power button is
NO Yes pressed?
Is there 5V when the
TV is plugged in?
If wiring connections
Go to the Replace Replace Replace Replace
are ok, check
Next slide The P board The A board The A board The P board
the S & K boards.
25
No Power/Dead Unit (Continue)
Continue from
Previous slide
Unplug the TV and
disconnect
connector A1. Plug in
NO Is Yes
there 3.3V at
the TV.
pin 6 of connector P7 when the
TV is plugged into
the AC line?
Replace
The P board
NO Do the AC relays click after Yes
the TV is plugged into
the AC line?
If the cable between connectors K1 and A1 is OK,
Replace the K board.
Reconnect A1 and
disconnect connector A52.
Plug in the TV.
Yes
NO Do the AC relays click after
the TV is plugged into
the AC line?
Replace If the cable between connectors GS52
The A board and A52 is OK, Replace the GS board.
26
No Picture from one or all inputs (OSD and Sound OK)
Warning: Disconnect AC Power prior to
Yes Is there no No making any disconnection or
picture from all connection.
inputs?
Note: Slow leakage from the panel causes
"no raster and buzz noise"
Disconnect
CN A5, Plug in the Replace
TV and turn it on The A board
Yes No
Does a white
picture
appears?
Disconnect Connect the
SU board. Disconnect
Yes the SU Board from the No Yes No
SC board. Turn the unit on. Is the SD Board from the SC board.
No
there a picture at the Turn the unit on. Is there a
lower half of the picture at the upper half
screen? of the screen?.
SC
Replace Replace Replace and possibly
The A board The SU board The SD board Panel.
27
No Picture\No OSD
Warning: Disconnect AC Power prior to
making any disconnection or
connection.
Yes Is the On No
Screen Display
information
visible?
Unplug the TV from the wall outlet.
Disconnect connector A5 from the A board.
Replace Reconnect the TV and wait for it to come on by
The A board itself.
No Is the screen Yes
Yes No completely
Is there 75V (VDA) at white?
pins 1 and 2 of the
connector SS12?
Replace
The A board
Replace
No Is the SC Board LED
Yes The P board
illuminated?
No Is the SS Board LED
Yes
illuminated?
Replace Replace Replace
The SC board The SS board The A board
Note: CN = Connector
28
No Sound
Warning: Disconnect AC Power prior to
making any disconnection or
connection.
No Is there 15V at Yes
pin 1 of CN A7
on the A
board?
Check the cable
between connector
A7 on the A board
and P6 on the P
board.
Yes Is there a sound
No
waveform at pin 1
and 3 of CN A12
on the A board?
Check the speakers.
(Make sure A12 is Replace
properly seated). The A board
Note: CN = Connector
29
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30
Troubleshooting for Picture Problems
31
Diagnostic Method for Troubleshooting PDP Television
1. There are two kinds of picture problem
1) Abnormal picture
2) No picture
2. Basic concept of determining the defective board
1) Which area is the symptom displayed on the screen?
A. Part of the screen
B. All over the screen
3. Adjustment after PCB exchange
1) After exchanging the following boards, voltage adjustment is required.
P board, SC board, SS board => Please refer to "Service Manual".
32
Troubleshooting for Picture Trouble
Start
Some part of the screen
Where is Upper half *Note :Panel gas leakage
the symptom SU Board (or A, or SC)
displayed?
Upper or Lower half Lower half
(from front view) SD Board (or A, or SC)
Both area
SC Board (or A)
Because of a very small crack in the
panel, gas leakage will start.
Right half
In this picture, gas leakage started at
Left or Right half A Board (or C1, or Panel) the left top corner.
(from front view) Finally, gas leakage will lead to the
Left half symptom "No picture with buzz
A Board (or C2, or Panel) noise".
33
Diagnosis for Picture Problem (All Over the Screen)
Abnormal Color, Vertical Line, Sync Error, Noise Picture All Models
A Board, SC Board, SU Board, SD Board
e.g. TH-42PX80U SC SU SS
SD
IC1100 A IC9500 IC9900
MICRO
PICTURE
PROCESSOR PLASMA AI
OUTPUT
IC4510 Buffer IC Buffer IC
Peaks LVDS DATA
HDMI I/F Lite RECEIVER S.F. PROCESSOR Video DATA (R)
DRIVER
IC8001 LVDS Video DATA (L)
DISCHARGE Scan Control Pulse
CONTROL Sustain Control Pulse
34
Diagnosis for Picture Problem (All Over the Screen)
Sample of NG Waveform
Confirm the waveform at "TPSC1" of the SC board
Correct Waveform
Waveform OK Waveform NG
Here
A Board defect SC,SU,SD Board defect
Refer to "Diagnosis (3)"
TPSC1 on next page
SC SU SS
IC9500 IC9900 A SD
PICTURE
PLASMA AI
OUTPUT
Video DATA (R)
LVDS DATA
RECEIVER S.F. PROCESSOR Video DATA (L)
DRIVER
Buffer IC Buffer IC
DISCHARGE Scan Control Pulse
CONTROL Sustain Control Pulse
Up to SC Board Panel Drive Circuit
35
Diagnosis for Picture Problem (All Over the Screen)
Confirm the waveform at "TPSC1" after removing the SU or SD Board from the SC Board
Situation Condition Condition 2 Cause
Disconnect SU Board Bottom half of
Waveform OK? SU Board
(Connect SD) Picture OK?
Disconnect SD Board Upper half of
Waveform OK? SD Board
(Connect SU) Picture OK?
Disconnect the SU Screen should
Waveform OK? SC Board
and SD Boards be black
SC SU SS
Correct Waveform
TPSC1
SD
Buffer IC Buffer IC
36
Diagnosis of Vertical Line Problem
NG Area (Front view)
Panel case1 case2
Thin vertical line A number of blocks
case1 case2 or 1 block not lighting not lighting
PDP panel (Driver IC) NG A board (or C board) NG
( or A board, or C board )
IC IC IC IC
1 Line 1 Block 2 Blocks
Buffer IC Buffer IC
Buffer PDP Panel Buffer PDP Panel
C2 C1 C1 D-board ( or C-board)
Driver IC Driver IC Driver IC Driver IC
FPC FPC
Drive
IC(2)
inside
C Board C Board
Buffer Buffer
or
A Board A board
37
Picture Trouble at Upper or Lower half
No Picture, Picture noise, Full Horizontal line, etc. Symptom : Horizontal line (Lower side)
Result : SD board
42 inch (HD Panel)
(Front view)
Symptom : Horizontal line (Upper side)
1 SU Result : A board
SS SC
2 A
SD
C2 C1
Symptom : Horizontal line (Both area)
Result : SS board
1 Trouble at Upper half : SU-board (SC or A) defect
2 Trouble at Lower half : SD-board (SC or A) defect
(*) Full Horizontal line at both area : SS-board (A) defect
38
Picture Trouble at Right or Left half (50