42PD7200 (PW2)
HDMI
[HDMI PWB Circuit]
No picture, no color or dark
Are waveforms at
YES
QH20<E>(Y),
QH21<E>(Cb) and
QH22<E>(Cr)?
Check ETV3 and VIDEO PWB
NO
Are waveforms atYES
12pin(Y), 15pin(Cb)
and 7pin(Cr) of IH13?
Check QH20, QH21 and QH22
NO
Check IH13
No sound
Are waveforms atYES
37pin(L) and 35pin(R)
of PHV1?
Check ETV3 and VIDEO PWB
NO
Are waveforms atYES
7pin(L) and 8pin(R) of
IH14?
Check IH15
NO
Are waveforms at
YES
26pin(SCK), 32pin(BCK),
30pin(DATA) and
31pin(LRCK) of IH13?
Check IH14
NO
Check IH13
35 |
ACEC
