Philips BDP2985/F7 Service Manual page 17

No audio output
No audio output
Check if the voltage on
C375 and CE22 is
normal
Yes
Check if the RCA socket is OK
Yes
Check
component or soldering
exists
(U6) on main board
NO
Try to fix the issue by
replacing DRV632 (U6)
Replace main board
Go
if any bad
around DRV632
5-2
Fix the open circuit or short
No
circuit which may exist on PCBs
No
Fix the RCA socket
Yes
Fix the bad component or
soldering
Trouble shooting chart