I really need a service manual for this unit. I can not find one anywhere I need to give er a good tune up, particularly i need to know what pot. is for adjustment of bass and treble, and tune up specs for the tuner. If ya have one perhaps U can PM me ?

Nobody has this manual ?
I would trade for one of the service manuals i have:

Sanyo M9880K

Panasonic RX5150

Goldstar - TSR800 TSR805 I think Prosonic PQR9962 Also Unitech Version