Yamaha CS80

Tom,

It looks like a trace lifted when i put the board back. Fixed that and  
now it works perfectly :)


I now have another problem on the top octave now - i can't get any  
sound unless a key from an octave below it, then i get crazy sounds  
without correct pitch. Looks like a morning on the scope is needed :)

AK
On 14/07/2011, at 10:38 PM, Quazimodo wrote:

> If it was working before you changed the caps then I would suspect  
> it is something you have done.
>
> Treble check all your work..!!!
>
> Cheers,
> TOM
>
> --- In yamahacs80@yahoogroups.com, Andrew Kirkby <kirkbyte@...> wrote:
> >
> > Hello all,
> >
> > I am restoring a PSU in a CS60 and after recapping i have no +15v  
> but
> > the +8.5 is fine.
> >
> > I'm thinking it could be the power transistor attached to the 15v  
> rail
> > however the reading of ~1.5v at the business end suggests otherwise.
> >
> > Before i go swapping out parts, can anyone suggest a fix? I've  
> checked
> > all the capacitors for polarity and continuity to the relevant  
> traces.
> >
> > Andrew
> >
> >
> > Andrew Kirkby
> > (e) kirkbyte@...
> > (m) 0416 000 070
> >
>
>
> 

Andrew Kirkby
(e) kirkbyte@...
(m) 0416 000 070






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