Vintage Synth Repair

No, it's the one in a square wooden box, with 2 gray buttons, then 6 
red buttons and then 4 white buttons :). 
I've found that some of the pots where for volume of the 
instruments, which was good, 'cause the bassdrum was very low. I was 
also able to give the bassdrum some more decay.
However, sometimes the bd goes bad, could this be due to lack of pot 
cleaning?
At the bottom pcb there are 4 pots, 2 of them are for calibrating 
tempo, but i just can't find out what the other two does.
-Martin


--- In vintagesynthrepair@yahoogroups.com, "John Brewer" <john@j...> 
wrote:
> Hi.
> Is this the wide one with the row of square white buttons and the 
round
> chrome cancel buttons on the right.  if so then it was great for 
its time
> and still useful today.
> 
> Most rhythm units have a load of pots.  Some are for balancing the 
loudness
> of the instruments.
> Some of the instrument sounds are generated by what is called a 
damped
> oscillator.  A bass drum oscillator will run for just a few cycles 
and decay
> away.  If the pot is too far one way the drum wont work, if it's 
too far the
> other way you will get a continuous low pitched hum.  generally, 
the pots
> are best left alone unless you have a drawing showing what each 
one does.
> JohnB
> 
> 
> ----- Original Message -----
> From: clavmartin <gogadget@w...>
> To: <vintagesynthrepair@yahoogroups.com>
> Sent: Sunday, August 15, 2004 7:46 PM
> Subject: [vintagesynthrepair] Service manual for Rhythm ace FR-6
> 
> 
> > Anyone got a service manual for a Rhythm ace FR-6? Or mayby just
> > some tips about it (what does the different pots inside do?)
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> 
> 
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