Doepfer

The A-165 has two CD4077 chips

Bi-polar capacitors might also have a problem on both modules if powered improperly. 

Nick



On Jun 17, 2013, at 10:30 AM, "ricardo" <rrkrdo@yahoo.co.uk> wrote:

> Thanks for the advice.
> 
> I'm trying to find where to get replacements for those Op amps for the A-199 i found the TL804CN but not sure where to get the LM386.
> 
> Any idea what i need to replace in the A-165?
> 
> Thanks Again
> 
> Ricardo
> 
> --- In Doepfer_a100@yahoogroups.com, "therpocc" <dmitry.shtatnov@...> wrote:
> >
> > In general the semiconductors should be the most usual components that are being blown by reverse current. Forget about passive components There are OK for sure.
> > I beleive you need to replace quad OpAmps (TL0x4) and maybe LM386 on the reverb module. Also you may check the transistors' hfe with appropriable multimeter, but usually transistors are being connected with power bus via resistors and there's no serious reverse current in case of wrong powering. In the opposite, the chips can be totally smoked by 1 second of wrong powering.
> > 
> > --- In Doepfer_a100@yahoogroups.com, "ricardo" <rrkrdo@> wrote:
> > >
> > > Hi I plugged A165 and A-199 SPRV wrongly in a Monorocket case and they are not working now. I have here a collection of resistors and wonder if anyone could help wth some advice so i can replace components and fix them?
> > > 
> > > Thanks in advance
> > > 
> > > Ricardo
> > >
> >
> 
> 


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