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TROUBLE SHOOTING
NO PLAYBACK PICTURE OF COMPOSITE VIDEO OUT
Is there VIDEO signal
at pin 170 of IC800.
N
Is there wave form from pin
9 to pin 23 of IC 800?
Y
Check IC800 or
change IC800.
NO DI GI TAL AUDI O OUT ON PLAYBA CK
Is there waveform at
pi n 4 of IC859?
N
Is the volt age at pi n 5
of IC859 about 3. 3V?
When CD
Y
When DVD
Is there waveform at
pi n 3 and 16 of IC 809?
N
D
Is there waveform at
pin 1 and 16 of IC 80 9?
N
Check SPDIF CD signal line of
IC130 and peripher al
circui t.
B
Check SPDIF SEL (IC800 pin177 )
signal line
Y
Check composite signal line
(DAC_D line) and S8400 around.
A
N
Check IC130 and peri ph er al
circuit.
Y
Check CN 871(Optical modul)
and peripheral circui t.
N
Check IC851 and peripheral
circ ui t.
Y
Y
Pi n 6 of IC859
is LOW?
N
B
Y
Y
Pi n 6 of IC859
is HIGH?
N
B
C
Check IC800 pin181 and peripheral
Change IC859.
circuit.
NO PLAYBACK PICTURE OFS-VIDEO OUT
S8400 is S-VIDEO side?
Is there VIDEO si gnal at
pin 169 and 170 of IC800?
A
NO PLAYBACK PICURE OF COMPONENT
VIDEO(UK,XE:RGB) OUT
S8400 is COMPONENT
VIDEO side?
(UK,XE:RGB)
Is there VIDEO si gnal at
pi n 170, 169 and 173 of
IC800?
A
NO ANALOG AUDIO OUT ON PLAYBACK
C
Is there AUDIO signal at
pin 8 and 11 of IC871?
Is there waveform at pin
1, 2 and 3 of IC871?
C
Is th er e wa vefo rm at pi n
20,1 9, 18 and 4 of IC871?
Check IC871 or
change IC871.
D
- 6 -
N
Se lect S-VIDEO side.
Y
Y
Check DAC_A, DAC_D signal line
and S8400 around.
N
N
Select COMPONENT side .
(UK,XE:RGB)
Y
Y
Check DAC_A, DAC_B, DAC_C
signal line and S8400 around.
N
Y
Check IC872,Q8720, Q8820 and
peripheral
N
N
Check IC800 and peripher al
Y
N
Check IC800, IC820 and peripher al
circui t.
Y
circ uit.
circ uit.
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