I can sympathize Mike ... did the same myself a year ago, and only
just recently managed fixed all the problems. Although I did only do
the power supply and then the TKC board. My after touch screwed up big
time... in the end I have more than one fault. I think I blew a couple
of the IC's on the TKC - but more importantly - I had broken wires
going to one of the TSB boards.
I reckon anyone working with any board in the CS80 needs to bear in
mind that the constant turning of them ∗to-and fro∗ does put a strain
on the fine wires in the looms going to the solder points.
If I were you I'd check visually first - and then move them gently.
That's how I discovered mine... if I touched the nearby loom the fault
fixed itself, then re-appeared as I let go..!!
Hope you get to the bottom of it.
Cheers,
TOM
--- In
yamahacs80@yahoogroups.com, "mborish_2000" <mborish_2000@...>
wrote:
>
> So, I just finished replacing almost all of the 4000 series logic
> IC's in my Yamaha CS-80. I
> totally screwed it up.
>
> Does anybody have any suggestions or referrals?
>
> -Mike