I'd suggest buying a complete working SDS-9 is worth more than the trouble -
use this for spares!
electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se
----- Original Message -----
From: "flinnrob" <flinnrob@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Tuesday, September 20, 2005 8:02 PM
Subject: [Simmons Drums] Re: sds9 info wanted
> Having had another look the 3rd 3394 is also missing.
>
> --- In Simmons_Drums@yahoogroups.com, Steve Ridley <spr@s...> wrote:
>>
>> > The chips that are missing are marked iC37 & IC38. Can anyone
> verify
>> > that these are curtis chips & what the curtis part number is ?
>>
>> They're Curtis CEM3394s. There should be one for each tom. Does
> one of the
>> toms work? There is also a CEM3372, but that's a filter for the
> snare.
>> CEM3394s are not easy to find. Paul "MOTM" Schreiber keeps most
> Curtis chips,
>> but he's out of 3394s. You should be able to get the data sheet
> off his site
>> though.
>>
>> Do you know why the 3394s were removed? Before you replace them,
> check the
>> power supply. Curtis chips are very vulnerable to excess voltage.
> The
>> PSU should give +15v, +5v and -6.5v. I had a PSU go bad in an
> SDS1000
>> (cut down SDS9 in a rack), and it took out the Curtis chips and a
> random
>> selection of other devices. Sound familiar?
>>
>> I have schematics, but my scanner is dying. If you're not too far
> away, I
>> might consider photocopying and posting them for you...
>>
>>
>> Steve
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