I guess it's the CMOS-ic's. I had the same problem: after I while the
aftertouch came to life and died again. I had all cmosses replaced and
capacitors added, as mentioned in old-crow's website, and after that
the aftertouch was fine. There are about 70 cmos-ic's, it will cost
some 70 or 80 USD including sockets.
good luck !
--- In yamahacs80@yahoogroups.com, "system_700" <voyetra8@...> wrote:
>
> Thanks for the reply. The aftertouch went out across the whole board.
> When I first bought it, it was out, then turned on "magically" after
> warming up. I have not put a voltmeter anywhere yet. :-) Can you
> advise where to put it? I have the schematics. I'm in Detroit.
>
> Thanks...
>
>