if it stopped working at a point that doesnt coincide with you opening the machine up, then "something has failed" would be my first assumption. if your voltages are reading properly on the aftertouch board, that's another vote towards component failure.
also, remember that sustaining a voice and switching thru presets doesnt exercise the envelopes, so the surefire process of elimination is to trigger the faulty voice on numerous presets.
--- On Mon, 3/30/09, Heath Finnie <heathfinnie@...> wrote:
From: Heath Finnie <heathfinnie@...>
Subject: [yamahacs80] Re: CS-80 almost working again! (no aftertouch and missing a voice)
To: yamahacs80@yahoogroups.com
Date: Monday, March 30, 2009, 8:25 PM
> are you sure that every panel function works in either of the memory slots for voice 3? i have seen a particular function of a voice fail(vcf,eg, etc), and it appears as certain presets not functioning.
After about 30 minutes it started working. It was weird. It was working in every preset including the memory channels. As soon as I selected panel it would go silent. Press Brass it would come back again.
> also, on the aftertouch, when i re-chipped and socketed all the lower boards, i had a bad new CMOS chip on the LARGER board(tks? cant remember name now). it caused the aftertouch to go out completely. all i remember was that it was in the row farthest away from the manual.....
The thing I wonder about is I had it working when I got it about 4 months ago. I didn't replace any chips and now it doesn't work globally.
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