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Doepfer

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AW: [Doepfer_a100] measuring CEM chips

2008-12-18 by yahoo@doepfer.de

> 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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