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Busted SDE

Busted SDE

2010-05-23 by Susie

Does anyone have an SDE schematic?

I picked it up for £20 a while back, knowing that it was broken, although the guy had had it working previously. I've only just got round to rebuilding the power supply.

Whereas it was silent when I got it, it now produces some very faint organ/synth/bass sounds on channels 1-3. 4-6 are still dead. Headphones have the same faint sound that appears on the outs, so it's not just dirty contacts.

I'm not sure my PSU rebuild was responsible for this murmur of life as it appears random as to whether you get a noise from it. Switch it off and on and it might be dead. Recycle it again and you might get some sound.

It appears to program OK - the OS boots and all the switches and knobs seem OK, but as it's so quiet it's hard to tell.

Anyone any ideas? It would seem that the tricky digital stuff is working, so I'm hoping it's just the output stages that maybe have a duff capacitor or three.

Or is that the battery has died and zeroed the volume on the channels? (I haven't figured out the programming yet)

Oh what fun!

Yours hexstaticly
Susie
http://www.myspace.com/susangardener

Re: [Simmons Drums] Busted SDE

2010-05-23 by jesper

Susie skrev:
> I picked it up for £20 a while back, knowing that it was broken, 
> although the guy had had it working previously. I've only just got round 
> to rebuilding the power supply.

You're going to give the single men on the list a heart attack by saying 
such things. *haha*

> Whereas it was silent when I got it, it now produces some very faint 
> organ/synth/bass sounds on channels 1-3. 4-6 are still dead. Headphones 
> have the same faint sound that appears on the outs, so it's not just 
> dirty contacts.

The output amplifiers? Volume settings?

> I'm not sure my PSU rebuild was responsible for this murmur of life as 
> it appears random as to whether you get a noise from it. Switch it off 
> and on and it might be dead. Recycle it again and you might get some sound.

Sounds like the battery would be a good start. A dead one often gives 
random patches. (this _can_ be good, I've thought about a mod for my 
OSCar to do the same - it can create the most outworldly effects.)

> It appears to program OK - the OS boots and all the switches and knobs 
> seem OK, but as it's so quiet it's hard to tell.
> 
> Anyone any ideas? It would seem that the tricky digital stuff is 
> working, so I'm hoping it's just the output stages that maybe have a 
> duff capacitor or three.
> 
> Or is that the battery has died and zeroed the volume on the channels? 
> (I haven't figured out the programming yet)

I'd start with the software. Learn to programmed a lame sound with 
maximum volume before you keep searching for problems that might not 
even be problems. That is what I'd do...

> Oh what fun!

Well, I can think of funnier things to do. Playing it for example. :)

-- 
electronically yours, jesper

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

Re: [Simmons Drums] Busted SDE

2010-05-23 by Michael Buchner

Time to think about the old theme "Transform a tom into a hihat".
The hihat sold here is a digital one, with both noise bend up/down and tone bend up/ down. This can only be realised with the A3 card: It is EASY to transform a digital cymbal into a digital hihat, only some 20 parts have to be changed. The waveform Eprom is the same. The digital hihat has NO bell/cym control, instead it has a volume (yes, nonsense, but true). Question: Who wants to transform a digital cymbal into a digital hihat? I guess: Nobody.

If I would construct the digital sound source as a piggyback PCB, we could turn at least standard tom/snare/bassdrum modules into hihats and cymbals. What we definitely don't get, is the bend up function, because too many changes on the PCB would have to be made. But the original pedal action is no problem and, as I mentioned earlier, it is possible to connect a Roland FD8 controller instead of the sick Simmons pedal (sorry). How many of you would like to have this transformation and what would it be worth to pay for that?
It is also no problem to change a tom into an analogue hihat as made on the earlier Musicaid/Simmons SDSVs. This is also an interesting sound, I made it for Wolfgang, Franck and some others.
If you own already an SDS7, I can supply an Eprom with the original SDSV cym waveform. You have to cut a diode on the board and then you have a ultra long cymbal/hihat sounding like an SDSV. Did you do it already, Ed? Do you like it?
Have a nice day, folks.
Michael
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: jesper 
  To: Simmons_Drums@yahoogroups.com 
  Sent: Sunday, May 23, 2010 8:31 PM
  Subject: Re: [Simmons Drums] Busted SDE


    
  Susie skrev:
  > I picked it up for £20 a while back, knowing that it was broken, 
  > although the guy had had it working previously. I've only just got round 
  > to rebuilding the power supply.

  You're going to give the single men on the list a heart attack by saying 
  such things. *haha*

  > Whereas it was silent when I got it, it now produces some very faint 
  > organ/synth/bass sounds on channels 1-3. 4-6 are still dead. Headphones 
  > have the same faint sound that appears on the outs, so it's not just 
  > dirty contacts.

  The output amplifiers? Volume settings?

  > I'm not sure my PSU rebuild was responsible for this murmur of life as 
  > it appears random as to whether you get a noise from it. Switch it off 
  > and on and it might be dead. Recycle it again and you might get some sound.

  Sounds like the battery would be a good start. A dead one often gives 
  random patches. (this _can_ be good, I've thought about a mod for my 
  OSCar to do the same - it can create the most outworldly effects.)

  > It appears to program OK - the OS boots and all the switches and knobs 
  > seem OK, but as it's so quiet it's hard to tell.
  > 
  > Anyone any ideas? It would seem that the tricky digital stuff is 
  > working, so I'm hoping it's just the output stages that maybe have a 
  > duff capacitor or three.
  > 
  > Or is that the battery has died and zeroed the volume on the channels? 
  > (I haven't figured out the programming yet)

  I'd start with the software. Learn to programmed a lame sound with 
  maximum volume before you keep searching for problems that might not 
  even be problems. That is what I'd do...

  > Oh what fun!

  Well, I can think of funnier things to do. Playing it for example. :)

  -- 
  electronically yours, jesper

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



  

[Non-text portions of this message have been removed]

Re: [Simmons Drums] Busted SDE

2010-05-23 by Susie

I'll learn how to program it and get back to you, although I do think there's something wrong with the output stage.

I bid £25 on the hihat module, btw

Hexceptionally yours
Susie
http://www.myspace.com/susangardener


--- In Simmons_Drums@yahoogroups.com, jesper <jesper@...> wrote:
Show quoted textHide quoted text
>
> Susie skrev:
> > I picked it up for £20 a while back, knowing that it was broken, 
> > although the guy had had it working previously. I've only just got round 
> > to rebuilding the power supply.
> 
> You're going to give the single men on the list a heart attack by saying 
> such things. *haha*
> 
> > Whereas it was silent when I got it, it now produces some very faint 
> > organ/synth/bass sounds on channels 1-3. 4-6 are still dead. Headphones 
> > have the same faint sound that appears on the outs, so it's not just 
> > dirty contacts.
> 
> The output amplifiers? Volume settings?
> 
> > I'm not sure my PSU rebuild was responsible for this murmur of life as 
> > it appears random as to whether you get a noise from it. Switch it off 
> > and on and it might be dead. Recycle it again and you might get some sound.
> 
> Sounds like the battery would be a good start. A dead one often gives 
> random patches. (this _can_ be good, I've thought about a mod for my 
> OSCar to do the same - it can create the most outworldly effects.)
> 
> > It appears to program OK - the OS boots and all the switches and knobs 
> > seem OK, but as it's so quiet it's hard to tell.
> > 
> > Anyone any ideas? It would seem that the tricky digital stuff is 
> > working, so I'm hoping it's just the output stages that maybe have a 
> > duff capacitor or three.
> > 
> > Or is that the battery has died and zeroed the volume on the channels? 
> > (I haven't figured out the programming yet)
> 
> I'd start with the software. Learn to programmed a lame sound with 
> maximum volume before you keep searching for problems that might not 
> even be problems. That is what I'd do...
> 
> > Oh what fun!
> 
> Well, I can think of funnier things to do. Playing it for example. :)
> 
> -- 
> electronically yours, jesper
> 
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se
>

Re: [Simmons Drums] Busted SDE

2010-05-24 by Ed

Yes, Michael's SDSV Cymbal Wave eprom fitted into a SDS7 hi hat module is the real deal. I already replaced the diode, otherwise I would've uploaded a sample of it in action. Maybe next time I have some free time. Highly recommended.

--- In Simmons_Drums@yahoogroups.com, "Michael Buchner" <buchnerelectronics@...> wrote:
Show quoted textHide quoted text
>
> Time to think about the old theme "Transform a tom into a hihat".
> The hihat sold here is a digital one, with both noise bend up/down and tone bend up/ down. This can only be realised with the A3 card: It is EASY to transform a digital cymbal into a digital hihat, only some 20 parts have to be changed. The waveform Eprom is the same. The digital hihat has NO bell/cym control, instead it has a volume (yes, nonsense, but true). Question: Who wants to transform a digital cymbal into a digital hihat? I guess: Nobody.
> 
> If I would construct the digital sound source as a piggyback PCB, we could turn at least standard tom/snare/bassdrum modules into hihats and cymbals. What we definitely don't get, is the bend up function, because too many changes on the PCB would have to be made. But the original pedal action is no problem and, as I mentioned earlier, it is possible to connect a Roland FD8 controller instead of the sick Simmons pedal (sorry). How many of you would like to have this transformation and what would it be worth to pay for that?
> It is also no problem to change a tom into an analogue hihat as made on the earlier Musicaid/Simmons SDSVs. This is also an interesting sound, I made it for Wolfgang, Franck and some others.
> If you own already an SDS7, I can supply an Eprom with the original SDSV cym waveform. You have to cut a diode on the board and then you have a ultra long cymbal/hihat sounding like an SDSV. Did you do it already, Ed? Do you like it?
> Have a nice day, folks.
> Michael
> 
>   ----- Original Message ----- 
>   From: jesper 
>   To: Simmons_Drums@yahoogroups.com 
>   Sent: Sunday, May 23, 2010 8:31 PM
>   Subject: Re: [Simmons Drums] Busted SDE
> 
> 
>     
>   Susie skrev:
>   > I picked it up for £20 a while back, knowing that it was broken, 
>   > although the guy had had it working previously. I've only just got round 
>   > to rebuilding the power supply.
> 
>   You're going to give the single men on the list a heart attack by saying 
>   such things. *haha*
> 
>   > Whereas it was silent when I got it, it now produces some very faint 
>   > organ/synth/bass sounds on channels 1-3. 4-6 are still dead. Headphones 
>   > have the same faint sound that appears on the outs, so it's not just 
>   > dirty contacts.
> 
>   The output amplifiers? Volume settings?
> 
>   > I'm not sure my PSU rebuild was responsible for this murmur of life as 
>   > it appears random as to whether you get a noise from it. Switch it off 
>   > and on and it might be dead. Recycle it again and you might get some sound.
> 
>   Sounds like the battery would be a good start. A dead one often gives 
>   random patches. (this _can_ be good, I've thought about a mod for my 
>   OSCar to do the same - it can create the most outworldly effects.)
> 
>   > It appears to program OK - the OS boots and all the switches and knobs 
>   > seem OK, but as it's so quiet it's hard to tell.
>   > 
>   > Anyone any ideas? It would seem that the tricky digital stuff is 
>   > working, so I'm hoping it's just the output stages that maybe have a 
>   > duff capacitor or three.
>   > 
>   > Or is that the battery has died and zeroed the volume on the channels? 
>   > (I haven't figured out the programming yet)
> 
>   I'd start with the software. Learn to programmed a lame sound with 
>   maximum volume before you keep searching for problems that might not 
>   even be problems. That is what I'd do...
> 
>   > Oh what fun!
> 
>   Well, I can think of funnier things to do. Playing it for example. :)
> 
>   -- 
>   electronically yours, jesper
> 
>   - -- --- ---- ----- ---- --- -- -
>   www.electronic-obsession.se
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>