Vintage Simmons Drums (UK) Users Group

I opened up my SDS1000 (non-MIDI) last night and it doesn't have an additional EPROM for the program, just one for the snare sample.  It uses an 8051 (with built-in ROM) rather than the 8031 that most of the other Simmons units use.

So in this case I guess I couldn't upgrade mine to MIDI ?

--- In Simmons_Drums@yahoogroups.com, Michael Buchner <buchnerelectronics@...> wrote:
>
> I am not "into" the 1000 in the moment, but I remind, that with fitted midi parts the software (Eprom) had to be changed. I have a midi 1000, check you version (on the software Eproms top), then we know more. If somebody is interested in different snare sounds, I can sell some Eproms for the 1000 too...
> 
> Von meinem iPhone gesendet
> 
> Am 25.04.2013 um 09:14 schrieb brian walker <brian1075us@...>:
> 
> > Hi
> > 
> > There is a whole pile of components missing
> > 
> > Now I know exactly what they are
> > 
> > Originally thought about rebuilding / copying the missing parts from the SDS1000M
> > 
> > Having acquired a SDS1000 that had MIDI I have not bothered
> > 
> > I might give it a try now
> > 
> > Brian
> > 
> > ________________________________
> > From: Nick Zampiello <newallianceeast@...>
> > To: "Simmons_Drums@yahoogroups.com" <Simmons_Drums@yahoogroups.com> 
> > Sent: Thursday, 25 April 2013, 6:59
> > Subject: Re: [Simmons Drums] Re: Simmons SDS 1000 & MTM
> > 
> > 
> >   
> > the one i have has midi and works great.
> > 
> > it's hard to believe they would have SDS1000's in the world with MIDI jacks but no midi.
> > 
> > are you one the wrong midi channel?  it defaults to channel 1.
> > 
> > also, it only plays sounds on keys 60, 62, 64, 66, 68
> > 
> > PS, i found instructions for adding midi to a 1000:
> > don't remember where i got these, i never did the mod myself.
> > 
> > Install the following parts:
> > 
> > R5, R6, R7 - 220R resistors
> > R17 - 390K resistor
> > R18, R19, R20 - 8M2 resistors
> > R177, R182, R250, R251, R252 - 270K resistors
> > R246 - 220K resistor
> > R262, R263, R264, R265 - 1K0 resistors
> > R266, R267, R268, R269 - 2K2 resistors
> > 
> > C9, C10, C11, C12 - 1n0 capacitors
> > C30, C44, C58, C78 - 0.1uF capacitors
> > 
> > D42, D43, D44 - each 3 x 1N4148 diodes in series
> > (mount two sticking vertically out of the board and
> > one across the top)
> > 
> > D54, D64, D65, D66, D67, D68 - 1N4148 diodes
> > D57 - BAT85 schottky diode
> > 
> > IC6 - 74LS14 hex inverter
> > IC7 - 4N28 optoisolator
> > IC16 - LM324 quad opamp
> > 
> > P11, P12 - 8 pin DIN sockets, pcb mounting
> > 
> > L1 - wire link in 0v position
> > L2 - wire link in +5v position
> > 
> > There is also a 470R resistor suggested between
> > pins 4 and 14 on IC6.  There was a space on the
> > circuit board for mine, but on some versions you 
> > may have to solder the resistor on top of the chip.
> > 
> >  
> > 
> > z
> > 
> >  
> > NEW ALLIANCE EAST!!!!
> > 
> > --------------------------------------
> > 
> > New Alliance East - Mastering
> > 
> > New Alliance East - Facebook
> > 
> > X :::: B :::: S
> > 
> > ________________________________
> > From: brian walker <brian1075us@...>
> > To: "Simmons_Drums@yahoogroups.com" <Simmons_Drums@yahoogroups.com> 
> > Sent: Wednesday, April 24, 2013 1:38 PM
> > Subject: Re: [Simmons Drums] Re: Simmons SDS 1000 & MTM
> > 
> >   
> > Hi
> > 
> > I have an SDS1000 and a SDS1000m
> > 
> > They both have a full set of 5 pin DIN sockets and working MIDI
> > 
> > I have seen a SDS1000 without the sockets so NO MIDI
> > 
> > I have also seen a SDS1000m with a full set of 5 pin DIN sockets but with NO MIDI functions
> > 
> > I am still trying to figure it out
> > 
> > If it has a 5 pin DIN socket plug a MIDI lead into it and see what you get
> > 
> > The results will be: -
> > 
> > It works fine
> > 
> > It does not work in which case: -
> > 
> > It is NOT MIDI capable
> > 
> > OR
> > 
> > It is MIDI capable but is not working properly
> > 
> > Hopefully that covers all eventualities
> > 
> > Brian
> > 
> > ________________________________
> > From: HH <grandedoot@...>
> > To: Simmons_Drums@yahoogroups.com 
> > Sent: Tuesday, 23 April 2013, 23:50
> > Subject: [Simmons Drums] Re: Simmons SDS 1000 & MTM
> > 
> >   
> > Thanks Nick,
> > 
> > How the H do you know if it has a midi or not?
> > 
> > c
> > 
> > --- In Simmons_Drums@yahoogroups.com, Nick Zampiello <newallianceeast@> wrote:
> > >
> > > your SDS1000 doesn't have midi?
> > > 
> > > many do and if you get one with midi you don't need an MTM>
> > > 
> > > z
> > > 
> > > 
> > > Â 
> > > NEW ALLIANCE EAST!!!!
> > > 
> > > --------------------------------------
> > > 
> > > 
> > > New Alliance East - Mastering
> > > 
> > > New Alliance East - Facebook
> > > 
> > > X :::: B :::: S
> > > 
> > > 
> > > 
> > > 
> > > ________________________________
> > > From: HH <grandedoot@>
> > > To: Simmons_Drums@yahoogroups.com 
> > > Sent: Tuesday, April 23, 2013 10:58 AM
> > > Subject: [Simmons Drums] Simmons SDS 1000 & MTM
> > > 
> > > 
> > > 
> > > Â  
> > > Hello again!
> > > 
> > > I have a SDS 1000 & am wondering if a MTM system would work with it? The SDS is nice, but I have visions from the 80's when I would go to a keyboard store & they had either the SDX (or the MTM) that could be played & it was AMAZING!
> > > 
> > > If the MTM adds a ton of incredible sounds to the SDS 1000, I suppose, I'm super curious to know.
> > > 
> > > Thanks guys & gals! Chris
> > > 
> > > 
> > > 
> > > 
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> > >
> > 
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