Vintage Synth Repair

Hi "Kanaguvnor",

It seems you tried to reply to my post, but your reply only contained
 my original message, strange...
Well, Kanaguvnor (or anyone else for that matter), please try to reply
again if you had some thoughts of the subject.

Einar




--- In vintagesynthrepair@y..., "kanaguvnor" <guvnor@r...> wrote:
> --- In vintagesynthrepair@y..., "einarekstrom" <einarekstrom@y...> 
> wrote:
> > Hi,
> > 
> > I recently purchased a Moog Source from the US, which I now got 
> > rewired for 240V(thanks to Peter M. Blacket for the schematics!). 
> To 
> > my relief the membrane switch panel seems to be intact, but there's 
> > another annoying problem: 
> > 
> > When I turn it on it's working fine for about 10-15 minutes, 
> > suddenly the keyboard goes crazy. It keeps playing the wrong notes 
> > from the wrong keys, and sometimes it can re-trigger the envelopes 
> > several times while pressing a key. Funnily this doesn't seem to 
> > affect the lowest octave. Sometimes it may start to work properly 
> > again after a couple of minutes. 
> > 
> > I wonder if this has something to do with the power supply 
> > generating heat, after a while it gets so hot that i almost burn my 
> > fingers on the back panel.
> > 
> > Please reply if anybody has a clue what may be the cause(and cure) 
> > of this problem. Somehow I got the feeling this is not the 
> > famous "crazy source" syndrome, since it looks like the previous 
> > owner did something to the digital regulators on the PSU board.
> > 
> > Thanks in advance,
> > Einar Ekstrom