I just acquired a Sansui 8080 receiver from a friend. Since I have a 9090DB I am exited to look into it. I connected two speakers on A and turn on the power switch. The only light in the panel that is on is green protector light and the two left and right power meter. If I turn the selector switch the phono is the only one lighted all the others are not. I connected a turntable and it works but the right channel is not as good as the left channel. Microphone is working for both channel. This means that the left and right amplifier is working. I check all the fuses in the unit and they are all OK. Any suggestion where to start so that all the function works. Where can I download schematics for this unit. Any help will greatly be appreciated.
Manny
Manny