Panasonic TH-37PX60U - Diagnosis of Vertical Line Problem

<Diagnosis (3)>
Diagnosis for Picture Problem (All Over the Screen)
<Result>
Confirm the waveform at “TPSC1” after removing the SU or SD Board from the SC Board
Situation
Disconnect SU Board
(Connect SD)
Condition
Waveform OK?
Cause
SU Board
Disconnect SD Board
(Connect SU)
Waveform OK?
SD Board
Disconnect the SU
and SD Boards
Waveform OK?
SC Board
<Back side view>
SU
SD
SC SS
Buffer IC Buffer IC
TPSC1
Correct Waveform
Condition 2
Bottom half of
Picture OK?
Upper half of
Picture OK?
Screen should
be black
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C1
Buffer
C2
Buffer
Diagnosis of Vertical Line Problem
A number of blocks
not lighting
Thin vertical line
or 1 block not lighting
D board (or C board) NG
D-board ( or C-board)
FPC
1 Line
FPC
Buffer
C Board
Buffer
C Board
Driver IC
1 Block 2 Blocks
PDP panel (Driver IC) NG
( or D board, or C board )
Driver IC Driver IC Driver IC
PDP PanelPDP Panel
NG Area (Front view)
Panel
case1 case2
case2
Drive
IC(2)
inside
or
D boardD Board
case1
C1
Buffer IC Buffer IC
IC IC IC IC
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