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

Hi
I uploaded two files demonstrating the additional background noise coming out of the ringmodulator of my friend's 80 : can you tell me wheter this situation is normal or not? Also, the PRA board of that model seems to have suffered from a shortcircuit on a track, in facts its components have been mostly replaced and the track restored.
Another thing I've noticed is that the EXP/WAH pedal can't work , seemingly the board can't get the voltage and send to the EXP\WAH module; I've noted also that the trimmers for the L and R outputs have been placed on full right rather than the 0 point.
Any advice is welcome.
Thanks
M

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