Archive of the former Yahoo!Groups mailing list: Vintage Simmons Drums (UK) Users Group

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Simmons Drums] Re: SDS6 issue

From: "Michael Buchner" <buchnerelectronics@...>
Date: 2014-11-10


Hello,
 
I once had a "midied" SDS6 in the shop with the same fault. Here is what I did:
 
The "midied" SDS6's don't have a working reset button any more, this was cut off in the factory (the red button on the CPU board has no function). You can reset the CPU if you touch the pins of the I/O with your fingers (now don't laugh, it works). If you don't know what the I/O is, it is one of the big chips, the lower one. Open the SDS6 and simply grip the pins a few times.
 
Did you move the sync switch already a few times? If there are stains on the contacts, it even doesn't work.
 
If you need the schematics: I have these and can send.
 
Best
 
Michael
----- Original Message -----
From: Jim Barber lewisbarber@... [Simmons_Drums]
To: Simmons_Drums@yahoogroups.com
Sent: Monday, November 10, 2014 2:35 AM
Subject: Re: [Simmons Drums] Re: SDS6 issue

 

Thanks.  I have ordered a 311 and will be in in a week or so.  I am not getting the sync signal, only if I supply one to the sync in jack.

Will let you know how it turns out.  The SDS6 is a great drum machine as it is so easy to use.  I have had drum students use it to listen to drum beats.  It is easier to learn when they can listen to them, rather than try to play by just reading them.  My SDS6 also has the midi feature.

Jim

Sent from my iPad

On Nov 9, 2014, at 10:34 AM, philmurr@... [Simmons_Drums] <Simmons_Drums@yahoogroups.com> wrote:

 

Did you ever manage to fix this ?

You can check the 311, D-A converter and the VIA by altering the tempo pots and seeing if the readout changes.

Sounds like there might be a problem somewhere between the sync select switch on the expansion board and where that tells the CPU you want to use the internal clock - have a look at IC6 and see if that's doing what it should...