Hitachi 42PD9700C Service Manual page 48

C
No picture, no color or dark
Sub picture?
No
(Signal picture or Main picture )
Are waveform at
TP605(Y), TP606(Cb), and
TP607(Cr)?
No
Are waveforms at
64pin(Y), 62pin(Cb), and
60pin(Cr) of I601?
No
RGB Input
(DTT,SCART) or
Component Input?
(except 480i and 576i)
No
(Component Video for 480i,
576i/RF/Composit Video/S-Video)
Are waveforms at
72pin(Y), 74pin(Cb), and
76pin(Cr) of I601?
No
Are waveforms at
62pin(Y), 65pin(Cb), and
68pin(Cr) of I501?
No
RF or Composit Video ?
No
(Component Video for 480i,
576i/S-Video)
Component Video for
480i, 576i ?
No
(S-Video)
Are waveforms at
150pin(Y) and 158pin(C) of
I501?
No
Are waveforms at
44pin(Y) and 47pin(C) of
I201?
No
Check I201 and Input terminal
42PD9700 & 55PD9700
Yes(Sub picture)
Trouble of Sub picture
Yes
(RGB(DTT,SCART) or Component
Yes
Video except 480i and 576i)
Check FC PCB
Yes
Check Q601, Q602, Q603
Yes
Check I601
Yes
Check Q520, Q521, Q522
Yes (RF or Composit Video)
Yes
(Component Video
Are waveforms at
for 480i and 576i)
152pin(Y), 162pin(Cb), and
170pin(Cr) of I501?
Check Q540,Q541,Q542 and Input terminal
Yes
Check I501
Yes
Check Q207, Q217, Q218, Q219
SCART
or
Component?
No
(DTT)
Are waveform at
2pin(R), 4pin(G), 6pin(B) of
PMD1?
No
Check DTT Module, U101
and P702 on FC PCB
Is
waveform at 148pin(CV) of
I501?
No
Is
waveform at 44pin(CV) of
I201?
Check Q207, Q217, Q219
No
Yes (RF)
RF Input?
No
(Composit Video)
Check I201 and Input terminal
Yes
Check I501
No
47
Yes(SCART,Comp)
Check I601
and Input terminal
Yes
Check around I601
Yes
Check I501
Yes
Is
Yes
waveform at 63pin(CV)
of I201?
No
Check U101
Check I201