Denon HEOS AVR - Page 51

12. No sound from another HEOS speaker
(Select OPT input on HEOS AVR)
11. No sound from another HEOS speaker
(Select AUX IN input on HEOS AVR)
13. No sound from another HEOS speaker
(Select COAX input on HEOS AVR)
Are the settings correct in the HEOS app for the mobile device?
Are the settings correct in the HEOS app for the mobile device? Are the settings correct in the HEOS app for the mobile device?
Check the input of BUFFER IC (DIGITAL PCB)
Is the SPDIF signal OK?
[IC437 : 2pin]
Check the input of Volume IC (DIGITAL PCB)
Is the ANALOG signal OK?
[IC480 : 41pin] AUX_IN_R
[IC480 : 42pin] AUX_IN_L
Check the input of BUFFER IC (DIGITAL PCB)
Is the SPDIF signal OK?
[IC435 : 13pin]
Check the input of DIR (DIGITAL PCB)
Is the SPDIF signal OK?
[IC432 : 33pin]
Check the input of DIR (DIGITAL PCB)
Is the SPDIF signal OK?
[IC432 : 31pin]
See "Check the input of DIR*3" in item 10
See "Check the input of DIR*3" in item 10
See "Check the input of DIR*3" in item 10
Check the soldering of peripheral parts.
If there are no abnormalities, [OPT terminal JK431]
is faulty.
Check the soldering of peripheral parts.
If there are no abnormalities, [LINE IN terminal
JK471] is faulty.
Check the soldering of peripheral parts.
If there are no abnormalities, [COAX terminal
JK472] is faulty.
Check the soldering of peripheral parts.
If there are no abnormalities, [IC437 BUFFER IC] is
faulty.
Check the soldering of peripheral parts.
If there are no abnormalities, [IC435 BUFFER IC] is
faulty.
YES
YES YES
NO
NO NO
YES
YES YES
OK
OK
OK
OK
OK
NO
NO NO
NO
NO
Is there a connection between the router and this
unit?
Is there a connection between the router and this
unit?
Is there a connection between the router and this
unit?
Connect router to this unit according to "QSG".
Connect router to this unit according to "QSG". Connect router to this unit according to "QSG".
NO
NO NO
51
Caution in
servicing
Electrical Mechanical Repair Information Updating