Hi Andy
I really hope it's just like what you said
Fernando did align all of the KAS' trimpots going from K1 to K8 @125mV; now it happens that the trimpots turned to a wrong 144mV after the shock; besides that, the SH trimpots decalibrated strongly, as well; now they bring:
K1,K2,K5,K6= +3V
K3,K4,K7,K8= -0.20V
I may also agree that some CMOS fried up while getting the shock, but what about the KAS?
I'll let you know about the fuse
Please give any advice...
I'm scared a whole lot!!!
M
--- In yamahacs80@yahoogroups.com, Andrew Kirkby <kirkbyte@...> wrote:
>
> Sounds like some CMOS shorted out. Which fuse blew?
>
> Sent from my iPhone
>
> On 04/04/2011, at 12:27 AM, "max fazio" <faxiomas@...> wrote:
>
> > Hi all
> > I'm writing on behalf of Fernando who's got another problem with his machine which was eventually about to be fully restored.
> > While removing one board in the voices' rig, one of the fuses suddendly blew up and the main voltage jumped to +20V. After he restored the correct voltage he experienced all kinds of weird sounds coming off the CS-80.
> > I only hope that the KAS didn't break up, so please can you give me any advice or diagnosis about this problem.
> > please help
> > M
> >
> >
>
>
> [Non-text portions of this message have been removed]
>