Yamaha CS80

I have the same problem with my CS60.
I want to hear what solution needs to be applied here!








--- In yamahacs80@yahoogroups.com, rj krohn <r_j_d_2.phila@...> wrote:
>
> hi folks, got an issue im wondering if you could point me in the 
right direction of....
> 
> the VCF envelope of one voice on my cs-80 wont open/close properly. 
im 100% sure its not a HPF/LPF issue, as they both sweep through the 
ranges properly. its just that the attack/decay settings dont cause 
it to open/close. i tried to calibrate this, but using the service 
manual instructions, i couldnt get the attack ttime to change at all 
via the trim pots.
> 
> i believe there is a filter EG chip on the voice cards, right? 
possibly a bad chip? 
> 
> im looking forward to getting her to 100% shape. i honestly think 
the last time i enjoyed an instrument this much was 
learning "stairway to heaven" on gtr when i was 12 yrs old. i walk 
away from this thing in awe every time i sit down to play it....
> 
> 
> thanks guys!
> 
>        
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