Vintage Simmons Drums (UK) Users Group

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

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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!!!!
>
> --------------------------------------
>
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> 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
>
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> www.electronic-obsession.se