Crumar Musical Instruments User Group.

Nice, thanks! I guess this helps and definitely kicks process forward..
I also downloaded schematics.

I'll inform about results some day. :)

.ja



--- In crumar@yahoogroups.com, Michael Ashton <data@...> wrote:
>
> I had the same problem, and my guess is electrolytic capacitors. They pretty
> much have a shelf life, and the originals are definitely all past it. That
> goes for almost any electronic equipment over about 25 years old --
> electrolytic caps are not long-lasting components.
> 
> Dead voices may indicate AC coupling caps, which I think are the ones
> following the VCA stage -- I'm pretty sure those are the ones I had to
> replace in mine. I don't have the schematic handy, but they were definitely
> coupling caps.
> 
> In any case, you should replace as many of the electrolytics as you can;
> you'll have to anyway. Definitely do the ones in the power supply, so it
> doesn't ripple and fry your Curtis chips! Fortunately, those are the only
> really rare ICs in the unit, AFAIR.
> 
> --mpa
>