Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

CS is "chip select".

----- Original Message -----
From: "sputnik979" <sputnik979@yahoo.com>
To: <PolySix@yahoogroups.com>
Sent: Sunday, July 23, 2006 2:55 PM
Subject: [PolySix] Re: Memory failure, S-RAM suspected.


> I gather that by "WE" you mean WRITE ENABLE, but what is "CS line" ?
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> --- In PolySix@yahoogroups.com, "Roman" <modular@...> wrote:
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> you may be right. Although it's a matter of one bit corrupted to
> dramatiacally change the sound - imagine altered MSB of filter sutoff.
> If you try to call pathces from 1-8 and the sound is the same, that
> could mean that your RAM is not responding, or CS line to it is
> broken. If the patches differ, but everytime you recall them they are
> more or less not changed, that means RAM is OK, but something is
> wrong with writing it. Maybe WE trace broken.
> You could also try to measure power supply current of the ram. This
> 4V you mention is worrying me. If it's considerably high (like a few
> mA) it may suggest that RAM is really broken, possibly by
> electrostatic discharge. Another way of testing is is to measure RAM
> power supply voltage when the P6 is powered off. It should be only
> 0.2-0.3V lower than battery voltage. If it's 0.7V or more, that's a
> sign that something is wrong with the RAM.
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> >
> > Roman
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> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
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