Vintage Synth Repair

Hi - thanks so much for the tip.  I actually did this and it worked. I used an Omron G5V-
2-DC5 as the original part was not available.  It turned out to fit (depite the manufacturer 
telling me that it would require modification or the like).


--- In vintagesynthrepair@yahoogroups.com, "oxygeno1313" <oxygeno1313@...> wrote:
>
> Replace the relay at the output pcb.
> 
> regards,
> 
> 
> 
> 
> > Hello. I just purchased a CZ-1 only to discover that it has a very
> annoying
> > problem. I was 
> > only able to try it out with headphones - which emitted a loud,
> intermittent
> > crackling sound 
> > that diminished in frequency (fewer occurrences of the crackling and
> > steadier output) the 
> > longer the synth was on. The crackle is accompanied by near loss in
> volume
> > of both crackle 
> > and the intended output signal. I thought at the time that there was
> > something wrong with 
> > the headphone output or jack, but when I got home, I discovered that the
> > exact same thing 
> > happens via the line out jack. After playing around with the unit, I
> noticed
> > that hitting the 
> > keys hard often triggers a very loud instance of the crackle
> followed by a
> > period of non-
> > crackly, full-volumed output. Has anyone else had this issue? I can
> imagine
> > (and I know 
> > very very little about electronics) that the sound I am hearing is
> more like
> > that of a dying 
> > capacitor or faulty resistor than of a bad jack (I put some Deoxit
> DL-100 in
> > the jacks to no 
> > avail). If anyone can point me in the right direction of some
> components to
> > test and possibly 
> > a schematic to accompany, I would be very thankful.
> > 
> > Thanks in advance!
> >  
> > 
> > 
> > 
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>