Vintage Simmons Drums (UK) Users Group

If there are sensitive components a 6,2 current might have fried stuff or at 
least put it out of circulation...

electronically yours, jesper
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www.electronic-obsession.se

Order your own copy of the Machinepop/Imiafan
split-EP at www.electronic-obsession.se/label.asp

----- Original Message ----- 
From: "bty293472" <p.e.booker@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Friday, October 13, 2006 3:06 PM
Subject: [Simmons Drums] Silicon Mallet


> Hi,
> I'm keen to learn where I may find circuit diagrams for this, because I
> have a problem with my power supply board I don't understand.
> It has three +5v regulators, one +12v, one -12v, and one -5v. The
> instrument used to lock up after about 20 minutes, suggesting a thermal
> problem. Then the audio output failed, but I was still able to play it
> as a controller for another MIDI tone generator. I found one of the +5v
> was putting out +6.2v, and the -5v was putting out -6.2v (this without
> any load plugged into the board), so I changed them both, with no
> change, so now I'm stumped.
> Maybe one of you recogize the layout from another product?
> Many thanks
> Paul
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> Yahoo! Groups Links
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