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5
QQ
3 7 63 1515 0
NO DIGITAL AUDIO ON
PLAYBACK OF COAXIAL JACK
waveform at pin 2 of J8102
waveform at pin 215 of IC4002
TE
L 13942296513
NO ANALOG AUDIO ON
PLAYBACK
AUDIO signal at pins 7 and 8
waveform at pins 1,2 and 3 of
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.
5
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6
Is there
Yes
about 0.5 Vp-p?
No
Is there
Yes
about 3.3 Vp-p ?
No
Change IC4002.
Yes
Is there
of IC8003 ?
No
Is there
Yes
IC8003 ?
No
Change IC4002.
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ao
u163
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7
2 9
8
Q Q
3
6 7
1 3
1 5
Is there
voltage at pin 6 of IC8003
about 5 V ?
Yes
Change IC
.
8003
co
.
DV-49AV
7
8
9 4
2 8
Check connection at RCA
Cable.
Check Q8103 and
peripheral circuit.
0 5
8
2 9
9 4
2 8
Check J8001 and peripheral
circuit.
No
Check AT+5V.
m
8
9 9
A
B
C
9 9
D
E
F
25
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