Denon AVR-4810CI - Page 70

70
AVR-4810CI/AVR-4810
5. Analog audio
5.1. PRE AMP SECTION
5.2. Amp assign SECTION
No sound is output
YES
Is the voltage of ± 7V supplied to 8U-
210063 CY073?
NO
The power supply of ±7V is repaired.
YES
Is the audio signal transmitted to 8U-
210063 CX611?
YES
To troubleshooting 5.2 Amp assign
SECTION.
NO
Is the connector correctly connected
with ucom board (8U-210064)?
NO
Connect the connectors properly.
Is the serial data for electronic volume
transmitted to 8U-210063 CW132?
NO
YES
YES
The ucom board (8U-210064) 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.
No sound is output
YES
Is the voltage of ± 7V supplied to 8U-
310045 CX309?
NO
The power supply of ±7V is repaired.
YES
Is the audio signal transmitted to 8U-
310045 CW192?
YES
Connect the connectors properly.
NO
Is the connector correctly connected
with A.AUDIO board (8U-210063-2)?
NO
Connect the connectors properly.
Is the serial data for selector (IC302/
IC303/ IC304) transmitted?
NO
YES
YES
Is the serial data for serector(IC513/
IC514/ IC515) transmitted to 8U-310045
CX505?
NO
Check IC513, IC514 and IC515
soldering.
Connect the connectors properly.
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.
YES