66
AVR-3310CI/AVR-3310/AVR990/AVC-3310
5. Analog audio
5.1. 8U-210081
No sound is output
YES
Is the voltage of ± 7V supplied to 8U-
210081 CY073?
NO
The power supply of ±7V is repaired.
YES
Is the audio signal transmitted to 8U-
210081 CY192?
YES
The power amplifier is repaired.
NO
Is the connector correctly connected
with ucom board (8U-210082)?
NO
Connect the connectors properly.
Is the serial data for electronic volume
transmitted to 8U-210081 CW132?
NO
YES
YES
The ucom board (8U-210082) is
repaired.
Once more, checking the connection of the connector.
When can specify the trouble of the channel and function, check the signal route where it
corresponds.
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
To Next Page
Loading...
Need help?
General
