Diagnosis Of Vertical Line Problem - Panasonic TH-37PX60U Technical Manual

Diagnosis for Picture Problem
<Diagnosis (3)>
Confirm the waveform at "TPSC1" after removing the SU or SD Board from the SC Board
<Result>
Situation
Disconnect
(Connect SD)
Disconnect
(Connect SU)
Disconnect the SU
and SD Boards
Correct Waveform

Diagnosis of Vertical Line Problem

NG Area (Front view)
Panel
case1
IC IC
Buffer IC Buffer IC
C2 C1 C1
SU Board
Waveform
SD Board
Waveform
Waveform
SC
TPSC1
case1
Thin vertical line
or 1 block not lighting
case2
PDP panel (Driver IC) NG
( or D board, or C board )
1 Line
IC IC
PDP Panel
Buffer
Driver IC
Drive
IC(2)
inside
C Board
(All Over the Screen)
Condition Condition 2
Bottom half of
OK?
Picture OK?
Upper half of
OK?
Picture OK?
Screen should
OK
?
SU
<Back side view>
SD
Buffer IC
43
case2
1 Block
Buffer
Driver IC
FPC
Buffer
D Board
44
Cause
SU Board
SD Board
SC Board
be black
SS
Buffer IC
A number of blocks
not lighting
D board (or C board) NG
2 Blocks
PDP Panel
D-board ( or C-board)
Driver IC Driver IC
C Board
Buffer
or
D board
FPC