[sdiy] Repairing a Simmons SDE

[Sean Ellis]

I have an SDE and when I got it someone had used their own screws to attach
the rack ears, problem was the screws they used went right through into the
sides of the PCB, grounding traces! It acted exactly the same as yours is
now and I didn't solve the mystery until I removed the ears (now I just use
shorter screws).
BTW, do you have a copy of the manual? I've been searching for one for 6
whole years.
Regards,
Sean

----- Original Message -----
From: "Christian Oncken" <Christian at dslab.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Friday, January 04, 2002 6:28 AM
Subject: [sdiy] Repairing a Simmons SDE


>
> I've got a broken Simmons SDE.  I desperately want to fix it.  It was cool
> as hell when it worked.
>
> Its been broken for at least 2 years.  It started flaking out and loosing
> patches, I suspected the battery so I replaced that... then it wouldnt
turn
> on unless I power cycled it a bunch.  Then it completely gave out...
lights
> would blink in random ways and the display would show garbage.  Now it
wont
> even turn on...
>
> Any help here?  Anyone have experience/tips/knowledge about the SDE?  I'm
> suspecting the power supply now, but I dont know what the correct voltages
> are supposed to be.  Also may be that the EEPROM has gone bad?  Any way to
> check this, and if its bad, how would I go about replacing it?
>
> I really want to get this thing working again.  They arent too expensive
to
> buy used, but kinda hard to find... I havent seen one since I bought mine
> about 4 years ago.
>
> Thanks, this is a wonderful list.
>
> Christian Oncken.
>
>
> RE: soldering... screw the landlord then.  He dosent know what he's
talking
> about... if he gives me flack I'll take it to the health department...
hows
> that?
>
>
>