Hitachi 42PD9700C, Service Manual

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48
42PD9700C/U & 55PD9700C/U
Sub Picture [Main P C B Circuit]
Check FC P C B
No
No
Yes
Yes
Yes
Are waveform at
TP608(Y), TP609(Cb), and
TP610(Cr)?
Are waveforms at
42pin(Y), 44pin(Cb), and
46pin(Cr) of I601?
RGB
Input(DTT,SCART) or Compo-
nent Input?
Are waveforms at
78pin(Y), 80pin(Cb), and
2pin(Cr) of I601?
Are waveforms at
21pin(Y), 22pin(Cb), and
23pin(Cr) of I504?
Are waveforms at
56pin(Y) and 58pin(C) of I201?
Are waveforms at
44pin(Y) and 43pin(C) of I504?
Is
waveform at 1pin(CV) of
I504?
Is
waveform at 53pin(CV)
of I201?
Is
waveform at 63pin(CV) of
I201?
Check Q604, Q605, Q606
Check I601
Yes
Check I504
Yes
Check I201
Check U101
Yes
Check Q206 and Q511
Yes
Yes
Check Q515, Q516, Q517
Yes
No
(RF/Composit
Video/S-Video)
No
No
RF or Composit Video ?
No
Yes
(RF or Composit Video)
No
(S-Video)
Check I504
Check Q512, Q513
No
No
No
No
Check I201 and Input terminal
Check I201 and Input terminal
RF Input?
Yes (RF)
No
(Composit Video)
Trouble of Sub picture
SCART
or
Component?
No
(DTT)
No
Yes(SCART,Comp)
Check I601
and Input terminal
Yes
Check around I601
Check DTT Module, U101
and P702 on FC P
C
B
Are waveform at
2pin(R), 4pin(G), 6pin(B) of
PMD1?
Yes
(RGB(DTT,SCART) or Component
Video except 480i and 576i)