Vintage Simmons Drums (UK) Users Group

Paul!

I gave the scan of the schematics to the guy who is trying to repair my SDS7 and he started to laugh :o) All that has been typed in that document is a help, but the "drawings" are a joke because of the bad scan... it would be just great if that guy who sent the schematics to you would do a better scan.

Besides: Do you use a special IC or chip on your MIDI2SDSII ? I gave your schematics to "my soldering-guy" and he said that it is no problem building it but he would need a chip with the software on it?!?! I have absolutely no idea, could I please have your advice/answer? Thank you very much!!!

Bye
Hauke

----- Original Message -----
From: Paul.Maddox.Mail-list@...
To: Simmons_Drums@yahoogroups.com
Sent: Wednesday, February 23, 2005 2:15 PM
Subject: Re: [Simmons Drums] Re: Simmons SDS 2000


Jym/Hauke,

> I have a "dead" SDS7 too... bought it like that. Cosmetically it is almost
> mint, but the triggers don't work, no signal at all. How does it look when
> the battery is dead? Same symptom? Could you please describe it? Thank you!!!
> Do the LEDs/lights in the module light up when you hit a pad? Thats what my
> SDS7 refuses to do :-(

we have the service guide on the webpage, though its not a very high res scan
(the schematic is unreadable).
It has a list of problem and cures, try that first.

In the meantime, whoever sent me this, can I have a high res version of this?

Paul




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

Hauke,

> I gave the scan of the schematics to the guy who is trying to repair my SDS7
> and he started to laugh :o) All that has been typed in that document is a
> help, but the "drawings" are a joke because of the bad scan... it would be
> just great if that guy who sent the schematics to you would do a better scan.

I'm sure we can get a better version.

> Besides: Do you use a special IC or chip on your MIDI2SDSII ? I gave your
> schematics to "my soldering-guy" and he said that it is no problem building
> it but he would need a chip with the software on it?!?! I have absolutely no
> idea, could I please have your advice/answer? Thank you very much!!!

I don't have any of the chips left. the chip itself is an Atmel Microcontroller,
ATMEGA8-16AI, which is a fairly standard part.

Paul

hauke:

> Besides: Do you use a special IC or chip on your MIDI2SDSII ? I gave your

schematics to "my soldering-guy" and he said that it is no problem building
it but he would need a chip with the software on it?!?! I have absolutely no
idea, could I please have your advice/answer? Thank you very much!!!

Yes, what you buy from Paul is the board itself and the programmed chip. If
you're lucky, the one you're getting is programmed correctly too. (sorry
Paul, couldn't resist) I received a bad one by mistake but that is sorted
now...

While on the subject, will the new version have a trim pot for the maximum
value or is it just either 5 or 10 as maximum? For all us SDS-V-lovers a max
at 7 would be veeeeeery nice!

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Hi Jesper!

Well, I'm not very into programmed chips... Paul allready told me that I could build that Interface myself so I hope he doesn't mind that you gave me that hint. Paul put the schematics for download on his site so there shouldn't be a problem with copyright or so when building the interface myself. if so, please, Paul, shout at me!

The chip that I have to buy for that is already programmed, did I get that right? Can I buy such a chip in any good sorted electronic-shop?

What is taht you are writing about the "5" and "10" and "7"? Is that the "volume" the trigger comes out... different velocitys?

Thanks, Jesper!

----- Original Message -----
From: jesper@...
To: Simmons_Drums@yahoogroups.com
Sent: Thursday, February 24, 2005 9:22 AM
Subject: Re: [Simmons Drums] SDS7 schematics (was: Simmons SDS2000)


hauke:
> Besides: Do you use a special IC or chip on your MIDI2SDSII ? I gave your
schematics to "my soldering-guy" and he said that it is no problem building
it but he would need a chip with the software on it?!?! I have absolutely no
idea, could I please have your advice/answer? Thank you very much!!!

Yes, what you buy from Paul is the board itself and the programmed chip. If
you're lucky, the one you're getting is programmed correctly too. (sorry
Paul, couldn't resist) I received a bad one by mistake but that is sorted
now...

While on the subject, will the new version have a trim pot for the maximum
value or is it just either 5 or 10 as maximum? For all us SDS-V-lovers a max
at 7 would be veeeeeery nice!

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se




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

> The chip that I have to buy for that is already programmed, did I get that

right? Can I buy such a chip in any good sorted electronic-shop?

The chip - yes, the program - no...

> What is taht you are writing about the "5" and "10" and "7"? Is that the

"volume" the trigger comes out... different velocitys?

> Thanks, Jesper!

Yes! The version I have gives you +5 volts on the outputs at full key
velocity. But the SDS-V wants 7 for it to perform all the way with extra
crunch and better volume... SDS-7 wants 10 if I remember correctly.

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Jesper,

> While on the subject, will the new version have a trim pot for the maximum
> value or is it just either 5 or 10 as maximum? For all us SDS-V-lovers a max
> at 7 would be veeeeeery nice!

It will have an adjustable upper and lower voltage.

Paul

Hauke,

> Well, I'm not very into programmed chips... Paul allready told me that I could
> build that Interface myself so I hope he doesn't mind that you gave me that
> hint. Paul put the schematics for download on his site so there shouldn't be a
> problem with copyright or so when building the interface myself. if so,
> please, Paul, shout at me!

Nope, you can build it if you want, I don't mind.

> The chip that I have to buy for that is already programmed, did I get that
> right? Can I buy such a chip in any good sorted electronic-shop?

You can, RS, Farnell and Digikey stock them, *BUT* they are blank, and I'm
not willing to pass out my code.

> What is taht you are writing about the "5" and "10" and "7"? Is that the
> "volume" the trigger comes out... different velocitys?

The current one the maximum voltage out (with max velocity) is 5V, the SDS-V
needs 7V to get maximum level.

Paul

> > While on the subject, will the new version have a trim pot for the

maximum

> > value or is it just either 5 or 10 as maximum? For all us SDS-V-lovers a

max

> > at 7 would be veeeeeery nice!
>
> It will have an adjustable upper and lower voltage.
>
> Paul

Like two pots for minimum and maximum? Cool then!

electronically yours, jesper
- -- --- ---- ----- ---- --- -- -
www.electronic-obsession.se

Hi Paul!

I can understand that you don't want to give your code away... so I will have to wait desperately until you offer the boxes :-(
;-)

Thanks anyway!
Hauke

----- Original Message -----
From: Paul Maddox (Mail LIsts)
To: Simmons_Drums@yahoogroups.com
Sent: Thursday, February 24, 2005 9:58 AM
Subject: Re: [Simmons Drums] SDS7 schematics (was: Simmons SDS2000)


Hauke,

> Well, I'm not very into programmed chips... Paul allready told me that I could
> build that Interface myself so I hope he doesn't mind that you gave me that
> hint. Paul put the schematics for download on his site so there shouldn't be a
> problem with copyright or so when building the interface myself. if so,
> please, Paul, shout at me!

Nope, you can build it if you want, I don't mind.

> The chip that I have to buy for that is already programmed, did I get that
> right? Can I buy such a chip in any good sorted electronic-shop?

You can, RS, Farnell and Digikey stock them, *BUT* they are blank, and I'm
not willing to pass out my code.

> What is taht you are writing about the "5" and "10" and "7"? Is that the
> "volume" the trigger comes out... different velocitys?

The current one the maximum voltage out (with max velocity) is 5V, the SDS-V
needs 7V to get maximum level.

Paul


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

Jesper,

> Like two pots for minimum and maximum? Cool then!

yes, just like that.

Paul (in germany for a few days)

Hi Paul!

Welcome abroad!

Hauke from Hamburg :-)

----- Original Message -----
From: Paul.Maddox.Mail-list@...
To: Simmons_Drums@yahoogroups.com
Sent: Friday, February 25, 2005 10:58 PM
Subject: Re: [Simmons Drums] SDS7 schematics (was: Simmons SDS2000)


Jesper,

> Like two pots for minimum and maximum? Cool then!

yes, just like that.

Paul (in germany for a few days)

Yahoo! Groups Sponsor
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[Non-text portions of this message have been removed]