29
42PD9800TA (FW1)
Is it trouble of
sub picture ?
No picture, no color or dark
Yes (Trouble of sub picture)
② Trouble of Sub picture
No
(Trouble of
Single picture or Main picture)
RGB Input or HDMI Input ?
Yes (S-Video Input)
Check Main PWB
No
Component Input ?
No
S-Video Input ?
No
(RF or Composite)
Yes
No
Check IY01 and Input terminal
No
Yes (Component Input)
Yes (RGB Input or HDMI Input)
RF Input ?
Yes
Is waveform at 13pin(CV)
of IY01?
Check IY01
No
Check UT01
Are waveforms at
50pin(Y),48pin(Cb) and
49pin(Cr) of IY01?
Are waveforms at
21pin(Y) ,23pin(Cb) and
25pin(Cr) of PSM1 ?
No
No
Check QY09,QY10,QY11
Yes
Check IY01 and Input terminal
Check Main PWB
Are waveforms at
19pin(SY) and 25pin(SC)
of PSM1 ?
Are waveforms at
42pin(SY) and 49pin(SC)
of IY01?
Yes
Check QY09,QY12
Check Main PWB
Yes
Is waveform at 19pin(CV)
of PSM1 ?
No
Is waveform at 42pin(CV)
of IY01?
No
Yes
Check QY12
Yes
Check Main PWB
Is sub picture Component ?
No
Yes (Sub=Component Input)
①Trouble of Main picture-A
Yes
No
Yes (RF Input)
Check IY01 and Input terminal
Main Picture [SUB PWB Circuit]
Содержание 42PD9800TAFW1
Страница 64: ...64 42PD9800TA FW1 10 Printed wiring board diagram PWB assembly MAIN side A ...
Страница 65: ...65 42PD9800TA FW1 PWB assembly MAIN side B ...
Страница 68: ...68 42PD9800TA FW1 PWB assembly FILTER PWB assembly FILTER PWB assembly CONTROL PWB assembly SIDE INPUT ...
Страница 69: ...69 42PD9800TA FW1 11 Block diagram ...
Страница 71: ...71 42PD9800TA FW1 13 Wiring diagram 42PD9800TA 1 2 ...
Страница 72: ...72 42PD9800TA FW1 42PD9800TA 2 2 ...
Страница 74: ...74 42PD9800TA FW1 ...
Страница 76: ...76 42PD9800TA FW1 MEMO ...
Страница 98: ...YK No 034E Printed in Japan JE QR70531 42PD9800TA ...