Vintage Simmons Drums (UK) Users Group

Sure - I know. I only meant that since the other six cards are all OK I 
think I can rule out the PSU for now. :)

/j.

Nick Zampiello skrev 2013-03-06 13:32:
> well, if the power supply caps are bad they can hold an insufficient
> voltage until they 'warm up' and begin to function better.
>
> or filter caps can let through unwanted noise that gets better once the
> cap is heated and in tolerance.
>
> these can affect the sound of the whole device.  if it was a linn drum
> it wouldn't boot at all because the internal computer would detect bad
> power voltages.
>
> z
>
>
> NEW ALLIANCE EAST!!!!
>
> --------------------------------------
>
> New Alliance East - Mastering
>
> New Alliance East - Facebook
>
> X :::: B :::: S
>
> ________________________________
> From: jesper jesper@...
> <mailto:jesper%40electronic-obsession.se>>
> To: Simmons_Drums@yahoogroups.com <mailto:Simmons_Drums%40yahoogroups.com>
> Sent: Wednesday, March 6, 2013 3:17 AM
> Subject: Re: [Simmons Drums] Today's repair...
>
>
>
> My experience is that when a cap fails it fails. There is no
> temperamental about it. This sounds a lot more like a crappy IC getting
> warmed and functional...
>
> --
> electronically yours, jesper
>
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se
>
> Nick Zampiello skrev 2013-03-06 00:31:
>  > there are caps on the card too that could be bad.
>  >
>  > i just recapped the power and connector plate on an SDSV and it looked
>  > like the caps were from the 1920's!
>  >
>  > JKLOL.
>  >
>  > z
>  >
>  > NEW ALLIANCE EAST!!!!
>  >
>  > --------------------------------------
>  >
>  > New Alliance East - Mastering
>  >
>  > New Alliance East - Facebook
>  >
>  > X :::: B :::: S
>  >
>  > ________________________________
>  > From: jesper jesper@...
> <mailto:jesper%40electronic-obsession.se>
>  > >
>  > To: Simmons_Drums@yahoogroups.com
> <mailto:Simmons_Drums%40yahoogroups.com>
>  > Sent: Monday, March 4, 2013 4:07 AM
>  > Subject: Re: [Simmons Drums] Today's repair...
>  >
>  >
>  >
>  > philmurr skrev 2013-03-03 20:11:
>  > > I'm very happy my IV is working, next up is the SDS-V...
>  >
>  > Speaking of which...
>  >
>  > Can the tech guys here enlighten me regarding the program selector
>  > switches? I _guess_ the four switches end up at the same IC which opens
>  > the selected path... My hihat card works great upon startup if I stay
>  > with the factory preset. If I choose anything else it turns weird.
>  > Sometimes it plays some odd form of mix of all the presets but mostly
>  > it's just a lame and dull sound coming out. The LEDs either light up all
>  > or none. After fiften minutes or so it works as it should. It might be a
>  > bad soldering joint since heat might help...
>  >
>  > I dug out the schematics and looking at that crappy copy it looks as if
>  > the IC2 (14556) might be the culprit. IC1 is a 4013 btw. Any input from
>  > you soldering guys?
>  >
>  > --
>  > electronically yours, jesper
>  >
>  > - -- --- ---- ----- ---- --- -- -
>  > www.electronic-obsession.se
>
> [Non-text portions of this message have been removed]
>
> 
>
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-- 
electronically yours, jesper

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www.electronic-obsession.se