Vintage Synth Repair

Look for J111 FET's (or similar) near the output jacks. They are used 
for output muting and are a common failure item.

I would like to see a schematic for the MR Rack too since I have one. 
I'm looking for the V1.53 eprom images too. 

--- In vintagesynthrepair@yahoogroups.com, "Merlin Zener" 
<merlin.zener@...> wrote:
>
> G'day Steve,
> 
> I'm in Darwin.
> Would you have, or happen to know where to get, a circuit diagram 
for
> an Ensoniq MR rack?
> Even if it was just the analog bit around the output sockets,
> headphone socket etc. I've got one
> that only puts sound out the headphone skt, not the main or aux 
outs.
> 
> Cheers,
> --
> Merlin.
> 
> 
> 
> 
> 
> On Tue, Apr 15, 2008 at 9:54 PM, thirteentech <thirteentech@...> 
wrote:
> > Just wanted to introduce myself... I am a synthesizer service 
tech from Sydney, Australia. I
> >  have been fixing synths since 1982, as well as a lot of touring 
as a keyboard tech. Currently I
> >  have around 22 vintage machines that I play and use for 
recording, and have been a warranty
> >  tech in Australia over the years for PPG, Kurzweil E-mu and 
Sequential. Hope I can help out a
> >  little on the forum, and learn some new things too :-)
> >
> >  Steve Jones.
> >
> >
> >  ------------------------------------
> >
> >  Yahoo! Groups Links
> >
> >
> >
> >
> 
> 
> 
> -- 
> Merlin Zener
> piano, synthesizer.
>