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QQ
3 7 63 1515 0
When playing DISC, no audio output
IC301(222,224,226,234)
Audio signal normal?
IC702(11,12)
I2C signal normal?
Check IC702(24-27) and
Other circuits
TE
L 13942296513
No OPTICAL / DIGITAL output
IC301(235)
signal normal?
Check JK702(3)
Signal wave
www
.
http://www.xiaoyu163.com
NO
YES
NO
YES
NO
YES
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
Check IC301 circuits
Concerned audio
Check IC702,IC301 I2C
signal
Q Q
3
6 7
1 3
1 5
Check IC301
co
.
6-5
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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