Vintage Synth Repair

Some instruments can recognize pedal polarity automatically. Pedal  
must be connected and not pressed, then switch on the instrument and  
wait until instrument starts.

Some instruments could set pedal polarity, there must be function for  
it somewhere in parameter's menu.

Some instruments like only pedal of the same producer.

Or maybe your instrument can read more positions for sustain (quarter  
pedal, half pedal...) and needs three contacts (stereojack) on pedal  
cabel (plus special pedal of course). But it should work also with  
mono jack (switch only) pedal.

Check if your connection is OK. Pedal MUST work in either position of  
its polarity switch, one of them will work in opposite way. If it  
doesn't work at all, then there's connection or other problem.

You can always try the same pedal with the other instrument, or your  
instrument with the other pedal to find where's the problem :-)

Daniel Forro


On 25 Aug 2009, at 1:17 PM, master_peau wrote:

> I'm enjoying using this board, but have one problem.  I'm using a  
> sustain pedal that I can change polaraties.  Regardless of  
> direction, I can't get the pianos to sustain in either of the two  
> "hold" openings.  Any sussgestions would be appreciated.  Jake