Well!
I solved the problem in the M board 5 with the bad PWM/PM: a bad
IG00153 (VCO).
Now I was the last problem to be solved:
The overall volume of output, in my opinion is low.
This happens even heard from headphone!
When I bought my cs80 by the previous owner, I noticed that the PRA
had
had a track repaired.
I changed all the capacitors and you hear a sound very clean.
But I have little volume of output compared to my previous cs80 (I
had two)
There may be one of the two (or all) PH1 & 2 Led Photo cell?
Or it may be a problem in the VCA section of chorus/tremolo (OE2
board) ?
Happy Christmas!
--- In
yamahacs80@yahoogroups.com, "oberheim64" <tommysalsero@...>
wrote:
>
> Hi.
>
> Finally I can continue my restoration.
> It was a IGO151 VCA that distort the waveforms!
> Thanks erikfromhere.
>
> Now I was the last problem on waveform Pulse,in the same Mboard
five
> on Channel One.
> In practice with the preset Funky 3, the envelope seems slow
compared
> to other items or out of Phase.
>
> It's a fault PWM section...
>
> In the Panel mode with the Slider PM (the third slider of the
section
> PWM) all up, the signal disappear!
> And moving the "speed" slider the signal goes out of phase with
the
> same effect that I noticed in the preset "funky 3"
>
>
> Any suggestions?
>