Panasonic TH-42PZ80U - Schematic Diagram; Schematic Diagram Note

<Diagnosis (2)>
Diagnosis for Picture Problem (All Over the Screen)
IC9500
IC9300
IC9400
D
DISCHARGE
CONTROL
Video/Panel
Control
<Back side view>
SU
SD
SC SS
Buffer IC Buffer IC
Sustain Control Pulse
Scan Control Pulse
D Board defect
Waveform OK
SC,SU,SD Board defect
Waveform NG
Refer to “Diagnosis (3)”
on next page
<Result>
<Cause>
Confirm the waveform at “TPSC1” of the SC board
Video DATA (R)
Video DATA (L)
TPSC1
Panel Drive Circuit
Correct Waveform
Sample of NG Waveform
Here
<Result>
<Cause>
41
DATA
DRIVER
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