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Doepfer

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Re: AW: [Doepfer_a100] measuring CEM chips

2008-12-18 by Guy Drieghe D.

Thanks, Dieter !

If only to prove my point that I'm an idiot... I have several A-111's  
[with decent sines!], and of course it never occurred to me to use  
them as a perfectly valid and simple 3340 testbed. Doh !

cheers,

_guy (back in kindergarten now)


> > Hi folks,
> >
> > Amazing what one can learn about sine waves after a month of being  
> off-
> > line... ;-)
> >
> > Not sure if this is the right place to ask, but I recently re- 
> acquired
> > my old hi-end modular DIY synth, and want to try to either resurrect
> > it, or sample it for valuable spare parts. The thing got a lot of  
> CEM
> > chips in it, and I was wondering if there's a quick way to check if
> > these are still okay (out of their sockets -- the PSU has been  
> blown).
> > I could save some serious bucks with a-111's when the CEM 3340's  
> would
> > still be working...
> >
> > To clarify: I'm still on "idiot level" in regards to electronics  
> DIY,
> > but have some basic measuring equipment (DMM) available.
> >
> >
> > Thanks !
> >
> > _guy
>
> The easiest way is to order an A-111-1 without CEM3340 and try which  
> of the
> CEM3340 are working. I'm confident that at least one will be  
> working. Of
> course you could built a circuit to test the CEM3340 but that's  
> about 80% of
> the A-111-1 circuitry.
>
> Best wishes
> Dieter Doepfer

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