Synth-DIY Yahoo! Groups Archives

SDS 1000

2014-11-26 by miketc@...

Hi All ,

I recently became the owner of a SDS 1000 brain. Some nice sounds in the unit although a little limited. Three issues currently frustrate me

1. Its a 110v unit and I live in a 240v country

2. The decay time on the toms seems a little too low for my taste even at maximum. Especially when compared to my SDS - V clone and I would like to try and extend them.

3. The input sensitivity seems a little low across all inputs.

I am wondering if anyone knows the output voltages of the Toroidal transformer to save me probing the outputs to try and find a match. Also has anyone ever tied to make the mod I suggested ? I could make guesses and use trial and error as it should be possible... but it someone has been here before it could possibly help.

Last of all if anyone can point me to a source for the schematic that would be great.

Thanks for reading

Mike

Re: SDS 1000

2014-11-26 by philmurr@...

the SDS 1000 has the later Simmons standard PSU which is designed for 110/240 volts.

There are some pins on the PSU board with wire links. You need to cut the 2 links that put the transformer primaries in parallel and join the 1 link to put them in series for 240v. I can't remember which, but if you remove the board from the unit you can trace the connections on the PCB.

Hope that helps?

Re: SDS 1000

2014-11-26 by miketc@...

Thanks , I'll take a look. All sounds a little too easy :)

---In Simmons_Drums@yahoogroups.com, <philmurr@...> wrote :

the SDS 1000 has the later Simmons standard PSU which is designed for 110/240 volts.

There are some pins on the PSU board with wire links. You need to cut the 2 links that put the transformer primaries in parallel and join the 1 link to put them in series for 240v. I can't remember which, but if you remove the board from the unit you can trace the connections on the PCB.

Hope that helps?

Re: SDS 1000

2014-12-15 by miketc@...

Hi All,

Quick update

The SDS 1000 is now running on 240v (nice PSU design) but the Snare trigger seems to have died totally while I was using it. Can anyone point me in the direction of some s1000 schematics ?

Regards,

Mike

---In Simmons_Drums@yahoogroups.com, <miketc@...> wrote :

Thanks , I'll take a look. All sounds a little too easy :)

---In Simmons_Drums@yahoogroups.com, <philmurr@...> wrote :

the SDS 1000 has the later Simmons standard PSU which is designed for 110/240 volts.

There are some pins on the PSU board with wire links. You need to cut the 2 links that put the transformer primaries in parallel and join the 1 link to put them in series for 240v. I can't remember which, but if you remove the board from the unit you can trace the connections on the PCB.

Hope that helps?