Philips HTS3563 Service Manual page 29

No audio output
No audio output
Check voltage +26
V whether normal or not
Amplifier Board
Yes
Check the 24pin FFC connection XP13 on
Main Board and XP701 on Amplifier Board
whether right or not between Main Board
and Amplifier Board
Check the control signal at the XP13
PIN9 PIN10 PIN22
Replace Amplifier Board
Go
at XP702 on
Yes
Yes
5-4
Check XP13 pin 14&16 3.3V on Main
No
Board whether normal or not
Refer to CN502 on
Power Board
No
Replace U4 on Main Board,or
replace Main Board
Trouble shooting Chart
Yes
No