<Diagnosis (2)>
Diagnosis for Picture Problem
(All Over the Screen)
IC9900
DATA
DRIVER
IC9500
A
PICTURE
OUTPUT
S.F. PROCESSOR
PLASMA AI
DISCHARGE
CONTROL
LVDS
RECEIVER
<Back side view>
SU
SD
SC
SS
Buffer IC
Buffer IC
Sustain Control Pulse
Scan Control Pulse
A Board defect
Waveform
OK
SC,SU,SD Board defect
Waveform
NG
Up to SC Board
Refer to “Diagnosis (3)”
on next page
<Result>
<Cause>
Confirm the waveform at “TPSC1” of the SC board
<Defective Area>
Video DATA (R)
Video DATA (L)
TPSC1
Panel Drive Circuit
Correct Waveform
Sample of NG Waveform
Here
<Result>
<Cause>
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