H2ohm
Member
Okay. Everything as I can see if clean for sure and no cracks on the boards. The switch is gone - out - kaput, I have to scratch the trace a bit as the 'hole trace' in 3 slots came out - (rookie solder - but did not burn the board per se just those little copper holes came out) 2/3 conduct, one does not so I will try to carefully scratch the coating and jumper wire this other switch (commons are off from original - so I have no choice) and plug the 5 wire ribbon cable back in and fire it up. I am pretty sure it may not be the relays as you mentioned.Have not looked at the schematic so maybe got it wrong. From the posts above it looks like one of those designs where the relay will only engague
once the spkr set is selected. If the spkr selector is not working then don't blame the relay. Forget the relay(s) for the time being and fix/clean the spkr selector,
check connected wires/joints...
The trick is I have the original switch and I am trying to study the traces on the switches' PCB and going to the schematic to find the 'rest or OFF' position, then hooking the jumpers to Speaker A and so forth. And try to see if I got the positions right.
I cannot find an original style switch, so I was going to just carefully use short 22awg wire and put them through the 'through holes' of the switches' PCB, then click through each position to test. I see RY901 is for Speaker A side and RY902 is right.
I tell ya' this hobby is challenging but somewhat fun (hoping to not do any more rookie boo boo's)! LOL
Thanks for your help I am in the shed tomorrow trying to doctor up this switch!