Vintage Synth Repair

You can pretty much fry an egg on the back of my Source...

--- In vintagesynthrepair@y..., "einarekstrom" <einarekstrom@y...> 
wrote:
> --- In vintagesynthrepair@y..., "kanaguvnor" <guvnor@r...> wrote:
> 
> > The easy way to repair the problem is to essentially desolder and 
> > remove the troublesome sockets and "extend" the voltage regulator 
> > leads through the now empty socket's through-holes.  Resistor 
leads 
> > or 20 to 22 awg wire make great "extensions".
>  
> 
> 
> Thanks Guvnor,
> 
> One question, is this to be done on ALL 3 (or was it 4) voltage
> regulators? When I opened up the synth I could see that this
> convertion has been done by the previous owner to only ONE of the
> regulators.
> 
> Anyway, I'm not totally convinced this is a "Crazy Source" problem.
> Yesterday when I was playing with the synth i realised that the
> problem is probably not caused by the heat of the PSU, instead I 
think
> it's caused by vibrations. When I hold down a key and give the 
synth a
> bang in the side panel it usually changes the pitch by a semitone 
or two. 
> Further investigation proved that when a note shift occurs, it 
shifts
> all notes of the two highest octaves equally much. The lowest octave
> seem to be unaffected by the problem. 
> Somehow I think the problem could be in the keyboard itself, a bad
> connection, dirty contacts or something.
> 
> Well, I'll try to clean all the contacts(again!) and check for bad
> connections. I'll return for help if the problem prevails.
> 
> Oh, one more thing. Is the powersupply really supposed to become so
> hot that I burn my fingers on the back panel??  
> 
> Thanks,
> Einar