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My US 1 has had four broken pedals, and now has a fifth. I called Yamaha, and they DO have washers for the pedals but not until March. It is technically what they are calling a "failed instrument." So many of the parts have failed but been successfully replaced until now. The plastic in the pedals becomes old and brittle over time, then reaches a point where it just cracks off. The MDR has been rebuilt too, but is very temperamental. It doesn't allow me to copy discs any more. I'm trying to find a used one to replace it. Any ideas? [email protected]
You should try having the pedal connected when you turn unit on. Some pedals can be rewired to act opposite... However I believe this pedal should work with the Casio. You can open the pedal and see if you can move one wire so it works opposite. Also verify that the jack is set to the "SUS" setting per your user manual... around page E14
On SOME Yamaha pianos, there is an electrolytic capacitor 1mfd/50v that becomes leaky and causes this. On those with the particular main board the capcitor is at location C94. On other pianos there are other caps that bypass the wire from the pedals that are ceramic. Likely one of these has shorted. There is also a possibility that the pedal contact has shorted. Test for this by unplugging the pedal cable. If it still sustains, then problem is internal. Unless you are adept at electronics this is NOT a DIY repair.
Sorry, but Roland uses the opposite sense switch. They use normally closed where Casio requires normally open contacts. SOMETIMES one can rewire the pedal internally, but you have to be mechanically and electrically inclined to do that.
Check all connections including the battery clip if you use a battery, and the adapter jack if you use the AC adapter. Also check you guitar cable connections as the pedal turns itself off if the guitar plugs have a loose connection. Make sure the guitar jacks on the sides are tight and don't need tightening. Any of those issues could cause the pedal to operate sporadically or not at all. It could also be and IC problem internally on the pedal's circuit board, but before you open anything, check all the connections non electrical issues can occur more often on pedals.
You might have to replace the input jack for your pedal. It will involve disassembling the keyboard enough to get at the solder side of the circuit board where the jack is mounted. Desolder the jack and take it to a good electronics parts supplier to obtain an exact replacement and solder the replacement in. That is the easiest fix.
First and foremost , check your signal chain. By that, i mean put the pedal aside, ...just unhook it and take it out of your signal path. Using the same cables , guitar , amp, other pedals - borrow a friends MT-2 if you can get one , and try THAT to see if THAT works , OR any other kind of distortion pedal. If another one works ok , it's YOUR MT-2. Boss pedals are pretty rugged , but sometimes the little actuator (on/off switch) underneath the treadle (where you push your foot down) will become faulty. That's a high-gain pedal - are you using a basic Strat or other single-coil pickup guitar? If so , are you playing close to any flourescent lights? SIngle coils are noisy around those lights. Will cause a hum / buzz if using a heavy dist. pedal. You can check that by moving around as you play.
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