Vintage Simmons Drums (UK) Users Group

Hi everyone first post here just wondering if anyone can help me out.
I've got my brother's SDS9 brain here and it's in pretty poor shape.
Basically only the Bass Drum is producing sound.
I've used both the tap buttons and the auto demonstrate functions.
None of the trigger LEDs for the other drums are working.
Could anyone recommend a starting point for this?
Was looking at getting schematics from musicparts - can anyone vouch for the quality?  Or better still send some free ones :-)
Anyway many thanks 
Stevie

Ok got quite a bit farther after reading some other posts.
No 15V supply - I'm amazed any of it works.
Checked back through and the transformer is at fault - 2V on the winding 
for the 15V supply.
Guessing it should be about 20V AC on the secondary to generate the 
regulated +15V supply.
Can anyone confirm that?

Cheers
Stevie

I've got my brother's SDS9 brain here and it's in pretty poor shape.
did he do drugs or alcohol??
HAHHAHAA, sorry for that

oh dear!

Sent from my telephonic apparatus

On 21 Jun 2010, at 14:53, "Berk Aarts" <B.E.R.K@...> wrote:

> I've got my brother's SDS9 brain here and it's in pretty poor shape.
> did he do drugs or alcohol??
> HAHHAHAA, sorry for that
>
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