[sdiy] Wanted: Siel Orchestra 2 schematics

[Matti Kari]

Hola

Bob Weigel wrote:
> Well, the problem with the oct. down is probably just the switch or 
> solder to it I'd think.  Can't recall..I think there's an LED in it.
>  Does the LED work?  If not then it's just a bad switch likely or a
> bad chip that will be easily traced to it's locale.   The flange
> slider only works if the 'chorus' switch is activated I seem to
> recall. If still no flange or chorus then probably a bad BBD chip I'd
> think. I don't have

Yeah, the LED's work. I tried to swap the 4049 hex inverters but it 
didn't help. However, I got info from another list member that he had 
problems with broken circuit board traces. I hope I'll have time later 
this week to check this.

The ensemble effect itself works fine (however, the 'amount' slider 
doesn't have very much effect, but it is noticeable) but as said before, 
the flanger slider does nothing. Gotta check that!

> schematics but remember it's identical to the SCI Prelude and
> probably can be gotten from Wine Country.  Other problem is the
> capacitors drift and you get varying release times on the notes.
> Mine need to be done on my prelude.  -Bob

Sounds like the almost always necessary recapping procedure... :>

Thanks for the suggestions!

-- 
Matti Kari   ||   Vesalantie 38a, FI-00940 Helsinki
maza at maza.fi || http://maza.fi/ || +358 40 838 6607
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