Archive of the former Yahoo!Groups mailing list: Yamaha CS80

Hey Martin,

Thanks for the additional info! My email address is: jonathan401@...
I can take all the info and help I can get on this thing, so send away!
I jiggled the wires on the rear keyboard PCB's and the ones toward the middle of the card riser. There are a couple of heavier-guage brown ones in particular that I was touching when I heard the popping noise. I also noticed the screw holding the TWS board to the riser was missing, which could've been another causal factor, especially if the PCB chassis was touching and detaching from the power rail.
Glad to hear your poly AT is back up and running, despite the unorthodox repair - whatever works, I say!

Cheers,
Jonathan