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Re: I have reversed the polarity of my Roland sc-55 and...
Well first off put it back where it was originally. if that doesn't fix it you've probabple blown the transformer in the power supply and it will needt o be replaced.
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Try plugging in the pedal with the Roland powered down or off. With the pedal plugged in, turn the Roland on again. The Roland should sense the polarity upon power up. If this doesn't work, I have had those pedals get defective right out of the box, so try this...Get a ¼ inch guitar or signal cable and plug that into the damper jack. The cable will represent an open circuit polarity since nothing is shorting out the leads. See if the EP77 is sustaining or if it is not. Alternately, try shorting the guitar cable by laying a piece of metal across the top and bottom of the jack. A pocket or kitchen knife or any bare wire will do. If this does not work, your assumption about the power supply may be correct.
I have the same problem with my module and I can\'t find the solution anyware for the thing.Closest solution that I could find is something about Roland power adapter.Apparently module won\'t work with any adapter with the same voltage,only Roland or Boss B.R.A. adapters works.I have original Roland adapter and still shows an Analog test error.
Have you find the solution in meantime by any chance?
Sorry, but the Yamaha pedal has the opposite sense (it is a normally open contact) than what is REQUIRED by Roland equipment. Roland requires a Normally Closed contact. Unfortunately, one is confused because the Roland jack for the sustain shorts itself to no sustain when you unplug a pedal. SOMETIMES one can open a pedal and with soldering iron change a wire to reverse the pedal sense IF the particular pedal has both contacts available.
Look for a setting "pedal polarity" someplace either in the software or in the units.
Read section 2.4.2 of the Axiom manual. Also Appendix E where sustain is documented. The sustain is controller 64. I would use method 1 of the 2.4.2 writeup. You actuate the control (pedal) which arms the unit to accept setup sequence for that particular input.
You want to turn on MIDI output for the sustain pedal. Now remember that a Roland pedal has revese polarity of MOST others and that may needs to be setup. It is NOT clear from the documentation if the Axiom recognizes the reverse sense of the pedal, but it should. It SHOULD sense the pedal is normally closed and when you actuate it sense the change so you can configure it.
Some of the software MAY try to configure the Axiom and ASSUME the pedal is the more common polarity and undo the programming you have done.
1.Make sure you are plugged in to DAMPER (not FC1 or FC2)
2. Check to see if the notes STOP sustaining when you PRESS the pedal. If that is the case, first try turning off the Roland with the pedal plugged in and restarting with the pedal pressed down.
3. Press the EDIT button and scroll to Damper Polarity. See if it's set to Standard or Reverse.
4. If problem persists after all that, try holding the pedal jack into the Roland at different angles and then try the same with where the cable connects to the pedal. At that point, you can either attempt to repair the pedal or get another one.
Hope this helps,
Stewart
Please note that ROLAND equipment USUALLY uses Normally closed (electrically) damper pedals for their equipment. Most other brands use normally open ones. If you are using a non-Roland pedal, that is likely the problem.
SOME PEDALS require opening and changing a wire (involves soldering) to match the unit you are plugging into. A very few have a switch on them to allow changing polarity.
A few synths, like the Yamaha Tyros have a built in setup screen where one can select the polarity of the attached pedals.
The polarity switch selects whether the pressure causes a positive or negative electrical spike. This can affect whether your drum MODULE fires on the hit or when the hit is lifted.
Thin plastic triggers are an electret plastic and have piezoelectric properties.when their shape is changed by pressure, etc.
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