No Audio Output - Philips HTL2160C/G/M/S/T/W/12/F7/93 Service Manual

No audio output

No audio output
Make sure
choose the right channel
Check the signal input is
good
Check the +18V on main
board whether normal or
not
Check
+1.25V on main board
whether normal or not
Change the front board
Go
you have
Yes
Yes
Yes
+5V +3.3V
Yes
5-4
No
Choose the right channel
No
Change the signal source
No
Change the signal source
No
Change the main board
Trouble shooting Chart