Sony KDL 32T2800 No sound

[jkam]

Hi all,

Opened it up and disturbed wiring connectors & checked 1 speaker. 8ohms.
Checked audio & yes it's tv speakers setting.
I connected side panel RCA/phono to an amp. & sound there but fading in & out every 2 seconds.
Are the output devices closing due to load fault?
I came to ESI to get a schematic to look for o/p chips as I can't find then and have no idea what package they will be. Maybe I have to lift the PCB to locate them.
Are there any service codes for these?
Any help gratefully appreciated.
Thanks