Vintage Simmons Drums (UK) Users Group

Hi folks,

I've just acquired a slightly unwell SDS-9. It needs some replacement
potentiometers and plastic knobs, so I was wondering if anyone knew
where to get suitable ones from.

The other issue is that the sampled sounds (snare and rim) don't work.
Digital electronics are beyond my limited electronic repair abilities,
so I was also wondering if group members could recommend any repair
people with previous Simmons experience. I'm in the UK, but would
happily ship the unit for repair elsewhere in Europe.

Chris

I guess you've checked, but it's not just the e-proms that are dead?
For pots I think I found matching ones at mouser... but it's been a few
years since I repaired Simmons pots.

--
electronically yours, jesper

- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

---

Angaudlinn on iTunes:
https://itunes.apple.com/us/artist/angaudlinn/id582356650

Angaudlinn's playlist på Spotify:
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Den 2016-07-24 kl. 23:21, skrev Chris Wareham chris@...
[Simmons_Drums]:

>
>
> Hi folks,
>
> I've just acquired a slightly unwell SDS-9. It needs some replacement
> potentiometers and plastic knobs, so I was wondering if anyone knew
> where to get suitable ones from.
>
> The other issue is that the sampled sounds (snare and rim) don't work.
> Digital electronics are beyond my limited electronic repair abilities,
> so I was also wondering if group members could recommend any repair
> people with previous Simmons experience. I'm in the UK, but would
> happily ship the unit for repair elsewhere in Europe.
>
> Chris

Yes, that's a possibility, If the EPROMs don't have their windows covered,(they should have stickers on them) they could have been erased by ambient light over the years. although i'd expect them to make crunchy noise rather than silence unless theyd been left in sunlight for a long time and thus completly erased

with a blank eprom you should still get a little 'click' sound

if you have an eprom burner, you can read the eproms out into files then import them into your audio editor as 8bit unsigned RAW audio. that way you can see for sure if they are still good.

if the pcm channels are working but the eproms are dead then you should be able to use the noise generator anyway, and you should be able to get the filter to self resonate by turning the resonance all the way up.

do the trigger lights flash when you hit the pads or receive midi messages?

let us know if you find a source of pots, i-ve got a broken pot on my sds9 that needs replacing, fortunatly its the trigger sensitivity on one of the toms, and i trigger my sds9 via midi.

apart from the eproms being dead try resetting the sds9 internal memory(the magic sequence is hidden it the manual some place) the sds9 has a tendency to act like its broken untill you reset the memory when the internal battery is dead. if you look through the list archives, you'll see that most sds9 problems are caused by this. mine made some crazy sounds before i reset, some of which are impossible to obtain normally.

the sds9 does do a self test when you turn it on, if it fails it' scroll "Err" on the lcd it wont tell you what the problem is though. there is a special diagnostic ROM out there some place that tells you what the problem is. but i'm dammed if i can find a copy.  the self test only checks some things on the digital side.

ewan.

3-D printer? (For knobs...)

all my best,
- Scott

For knobs, search the group, i seem to remember seeing a post  from somebody who found the originals, which are still in production *maybe* they are  made by the uk company cliff, the jack sockets on the sds9 are certainly made by them.

Ewan.

If you mean knobs I think they can be replaced. I bought a "SDS-8 set"
on Ebay and replaced a few. But when it comes to pots, it's electronics
and down to dimensions. Hence me hinting towards mouser, farnell etc.

--
electronically yours, jesper

- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

---

Angaudlinn on iTunes:
https://itunes.apple.com/us/artist/angaudlinn/id582356650

Angaudlinn's playlist på Spotify:
http://open.spotify.com/user/simplyanalogue/playlist/540Srd3zA15pK7G1S8qLHo

Angaudlinn on facebook:
https://www.facebook.com/Angaudlinn



Den 2016-07-29 kl. 17:32, skrev Scott Gibbons scott@...
[Simmons_Drums]:

>
>
> 3-D printer? (For knobs...)
>
> all my best,
> - Scott