Vintage Simmons Drums (UK) Users Group

Power supply = powerinlet > transformer > Rectifier > Regulators > Cap\ufffds

The battery is just for backup of settings and is installed on the 
memorycard, IRC.

If you\ufffdre unsure, take it to a doctor.

WT

----- Original Message ----- 
From: "gushi1" <gushi1@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Thursday, August 13, 2009 1:21 PM
Subject: Re: [Simmons Drums] Common problems with SDS7?


> Thanks for the quick response.
>
> I have five voicecards installed. I'll try taking these out tomorrow and 
> see how it goes.
>
> By power supply do you just mean the battery or the kettle lead?
>
> Do you mean the capacitors and regulators in the whole unit or just the 
> computer part? Also what is the bridge-rectifier (sorry if this is a 
> stupid question, I'm new to this.
>
> Cheers.
>
> --- In Simmons_Drums@yahoogroups.com, "WT" <waveterm@...> wrote:
>>
>> Hi,
>>
>> start by taking out all the voicecards to see if the computer starts. How
>> many cards is installed ?
>>
>> My SDS-7 has started to fail on power-up and I suspect it has to do with 
>> bad
>> powersupply. I think it needs to be renovated.
>>
>> If the computer starts without voicecards, I suspect the capacitors and 
>> the
>> regulators ( and possibly the bridge-rectifier ) needs to replaced.
>>
>> WT
>> ----- Original Message ----- 
>> From: "gushi1" <gushi1@...>
>> To: <Simmons_Drums@yahoogroups.com>
>> Sent: Thursday, August 13, 2009 12:50 PM
>> Subject: Re: [Simmons Drums] Common problems with SDS7?
>>
>>
>> > Hi again guys,
>> >
>> > I picked up my SDS7 the other day, was still boxed and had obviously 
>> > been
>> > well looked after but was still in need of a bit of TLC. As far as I 
>> > could
>> > tell, all of the relevant parts and chips were there. The brain did 
>> > power
>> > up but is a bit temperamental.
>> >
>> > I didn't manage to get any sound out of it. When turning the brain on,
>> > sometimes the number display on the right works, sometimes it doesn't, 
>> > so
>> > I'm thinking that this it is having trouble recalling the kits?  I am
>> > hoping that maybe changing the battery might rectify this?
>> >
>> > Am I right in thinking that the BN24 is the one I need?
>> >
>> > http://www.maplin.co.uk/module.aspx?moduleno=30958
>> >
>> > If its not the battery does anyone else have any other ideas at to what
>> > the issue might be? Or can you give any tips on servicing or what I 
>> > need
>> > to look out for? Am going to look into doing this over the weekend.
>> >
>> > I'm reasonably handy with a soldering iron and have replaced similar 
>> > parts
>> > in other musical equipment before so I'm no entirely new to this, but
>> > obviously I'm dying to get my Simmons working ASAP so any useful info
>> > would be greatly appreciated!
>> >
>> > Cheers
>> >
>> > Chris
>> >
>> >
>> > --- In Simmons_Drums@yahoogroups.com, jesper <jesper@> wrote:
>> >>
>> >> gushi1 skrev:
>> >> > Thanks for the suggestions guys, I spoke to the guy I bought it from
>> >> > last night trying to arrange pickup. He told me that he plugged the
>> >> > brain in for the first time in ten years and it powered up, even 
>> >> > though
>> >> > he seems to thinks that the last time he used it, it didn't work at
>> >> > all.
>> >> >
>> >> > Fingers crossed there's nothing wrong with it and I've just bought a
>> >> > fully working SDS7 for pennies. I'm never usually this lucky but I
>> >> > guess
>> >> > you've got to win sometimes?
>> >>
>> >> Yes, and sometimes it happens! :)
>> >>
>> >> > Perhaps when I get it, it might be worth changing the internal 
>> >> > battery
>> >> > as a precautionary measure?
>> >>
>> >> If what he says about storage is true I'd sure recommend that!
>> >>
>> >> -- 
>> >> electronically yours, jesper
>> >>
>> >> - -- --- ---- ----- ---- --- -- -
>> >> www.electronic-obsession.se
>> >> www.myspace.com/machinepop
>> >>
>> >
>> >
>> >
>> >
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