Yamaha CS80

--- In yamahacs80@yahoogroups.com, "Heath Finnie" <heathfinnie@...> wrote:
>
> In my continuing adventures with this thing I realized that my
latest problem is a loss of these two voltages from the PSU. I
replaced IC722, and both 1000uf caps. I'm trying to follow the
instructions and run the PSU separate from the rest of the synth by
connecting the +15 to +15S and -15 to -15S and I'm not getting any
proper voltages running it this way.

What are you getting? What are the voltages on the +8.5v and -6.5v
outputs?  What are the outputs of the rectifiers  (@ C730 and C731)
feeding the regulator circuits?  For the obvious, have you checked the
fuses (F721/F722)?

Shouldn't be that hard to trace the problem.

Good luck!