I have a Roland HP 2e digital piano - Foot pedal problem
I have a Roland HP 2e digital piano. The problem is that the foot pedals don't seem to be working. The manual suggests a pedal cable which wasn't supplied with the piano and whilst I have found a plug in point at the back of the piano, I can't see where this plugs into the pedals. I think I am missing the obvious somewhere and the user manual is not clear. I would be grateful for your advice. Many thanks Paul
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This wish an after market pedal, or the original 3's connector? If the keyboard is on when you plug and unplug that, it is likely due to a voltage reference getting confused. Usually when you get constant sustain then most likely a switch is stuck closed, or open, down there in the pedal. How these things work normally is that a pliable switch is opened, for sustain, or closed. It depends on the keyboard. Some keyboards have a setting inside them to accommodate both types of pedals, and some pedals have a switch to choose either. Your keyboard does not have a setting that I can tell, other than adjustments for a resonance option (nice feature). I am not sure the newer RPU-3 pedal is compatible, it seems to be for the newer models. If you are handy with a volt meter, then can check the cable's pins for a common, then a pin that changes with each pedal (use continuity mode, beeps when circuit is closed). Could be a piece of dust is in there, or hair or carpet stuff, and a good cleaning would fix that from blocking the normal function. Manual Link: http://media.rolandus.com/manuals/HP-237_OM.pdf
is it a scratchy noise? sounds like a dirty Pot. common issue, easy fix. go to radio shack or wherever and get some of there electronic component spray lubrication. its in a small metal can.
Its best to take the pedal apart if you can so you can get the pot really good and work it in, but sometimes you can just stick the nozzle right in between the pedal itself and the housing and get the pot just fine.
It looks like the cable terminates into a 1/4" stereo or 3 wire plug.
Best: I recommend going to Radio shack or an audio store and buying a 1/4" stereo plug/ with cable that has one end loose and attaching the loose end to your foot pedal. I do not know why it is stereo unless there are 2 pedals but if so ,you will need to determine which wire works on which pedal so leave pedal cover loose until you test it. I have replaced these before. OK method: The cable can be spliced using solder and heat shrink to isolate the wires. Use probably 1//8 to 3/16" shrink for the wires and 1/4" to 3/8" shrink over the whole job. Keep each wire separate by color type.If the wire is too hard to twist it may be a special type that can be connected using terminal strips(radio shack has them) or use wire nuts and tape them.
Yep... Roland pedals are reversed, that is, normally closed contacts. Unlike some Yamaha keyboards, the Casio doesn't have an inversion function available. You have two choices to solve this: 1. Buy a pedal with the corect sense 2. Open the Roland pedal and MAYBE with a soldering iron you can move a wire to select a contact with the opposite sense.
R-C-L stand for right, center, left... On a standard piano, the RIGHT or "R" pedal is the "damper".
The other pedals are the soft and sostenuto The "Soft" is the LEFT pedal and the Sostenuto the center. The FC controller inputs can usually be configured by the user so you need to read in your user manual how to set those and connect whichever cable to the appropriate FC input.
I you mean the sustain type pedals, FIRST check the connector(s) as they often come loose or unseated. Next check for a broken pin in the connectors. It is UNLIKELY you could troubleshoot anything inside with just a meter. It appears that some of the Roland pedals receive 5 volts in the connector, and upon contact closure the voltage is sent back to the piano where it drives C4570 buffers with 680K to ground and an RF bypass cap and series 330 ohm to the + of the C4570's. The circuit I have is for a different piano but if yours uses the 8 pin connector it is likely the same.
The contact is actually optical interrupter modules with a driver transistor. There are threshold setting pots in the pedal assembly as well. The farthest I would suggest you go is to make sure the optical interrupter modules are free of dust if this is the type you have,.
I assume you are plugging this into a ROLAND brand product as the Roland sustain uses a normally CLOSED contact while MOST other brands use NORMALLY OPEN contacts.
The Roland synths now monitor the pedal as the power is turned on and supposedly decides which contact type is used.
Remember that for MANY voices, such as piano, notes are held longer BUT they do not continue indefinitely just like the sustain on a real piano works. On a real piano the dampers are lifted, but the strings eventually stop ringing due to the losses of energy in the strings.
Some voices will be held,such as organ tones.
I don't have enough information from your post regarding what voice you are having trouble with.