R-100 Repair or ?

[milo63]

My Brother-in-law gave me his Yamaha R-100 (very early A/V amp?) with wonky selector buttons.
When I first hooked it up on the bench it worked fine in AUX until I started hitting buttons. Now it's stuck in TAPE.
I Deoxed the micro switches and checked for busted/burned stuff with no joy.
It sounds great in TAPE so option #1 is to leave it as-is for a shop amp. I just wish it was busted in AUX...

Bad board?

 

[OMGCat!]

Possible bad solder joints? Try putting some pressure on the selector board and see if it acts any differently

 

[milo63]

It's got issues but I got it to work in AUX. No input indication light or EQ panel lights.

It'll be my garage queen for a while.

Rocking the JBL 4406's, big power compared to the old 25WPC Technics I took down.

Thanks for the help, I got it "fixed" as much as I needed.