Vintage Synth Repair

So do you think that it is likely thay BOTH of the IG00159 went bad ?....

As I said, both EG sections don't respond...



--- In vintagesynthrepair@yahoogroups.com, "duncan" <ferrograph@...>
wrote:
>
> >>the problem is on the IG00159<<
> 
> almost certainly, but check the CV going to it also- you may just have
> a bad slider somewhere.
> fwiw, yamaha in the UK were able to supply me with parts for my own
> cs30 (including some of these proprietary yamaha chips- a VCF in my
> case) & also parts & a service manual for my 1975 cs50. very impressive.
> 
> duncan.
>