[Jukebox-list] SHP3 Amp

Hello All,

I have a SHP3 amp, when either RCA plug ( Input ) is disconnected, both channels play still play. If I remove the mute relay the sound level drops but does not quit. I have checked for shorts in the wiring, shorts on the boards, checked the diodes. I believe the problem is in the preamp section. Can someone point me in the right direction?? Thanks Robert