Sustain function 'stuck' with my old pedal, so i replaced with a Live Wire Solutions LWS-25 pedal. the problem persists. i know it's not a problem of the switch on the pedal being in the wrong position, because the sustain is not continuous. i had the contact strip replaced a couple years ago by a technician. do i need a new one? the board is played for maybe four hours a week. thanks
SOURCE: Sustain pedal not working on my Yamaha P-90
What I figured out is that when i turn on the keyboard, if i hold down the pedal by accident, it will work in reverse. I dont know if this is what you mean. If it is, just dont touch the pedal when you turn it on. If it isn't, try to return the pedal. I dropped one, it had this problem, and they gave me a new one. Your cord for it might have been bent (?). Also, turn the keyboard on with the pedal already plugged in. It's not made to be plugged in while it's on. Hope this helps. - Matthew
SOURCE: How to remove piano keys from Roland KR 4700
You probably need to just clean the circuit board and the conductive rubber contacts. There are two per key to facilitate reading the key velocity.
Use 99% isoprophyl alcohol and Q-Tips to clean both the board and the rubber contacts.
A rod is inserted lengthwise to hold the hammer weights while removing the boards. Use dowels from each end inserted about halfway back between the keys and the weight rods. Use a 1/4 inch dowel rod.
You have to take out a few screws to remove the boards from the key assembly. Be careful of the cables.
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SOURCE: hi, i purchased yamaha fc15 sustain
The answer is NO... Roland uses the opposite sense switches on foot pedals... They use NIRMALLY CLOSED and your Yamaha is a NORMALLY OPEN switch.
SOMETIMES you can open these pedals and find that the pedal has the opposite sense switch available and you only have to unsolder and move one wire to make it a NORMALLY CLOSED pedal.
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SOURCE: A bought an Yamaha DGX
The function setting is for the PANEL sustain (Page 68 of your manual)
The other method of sustain is by footswitch or pedal option. See page 13.
If you use a footswitch, it needs to be a normally open contact type. If you plug a Roland type in, it is opposite polarity and will sustain UNLESS the pedal is pressed. Make sure nothing else is plugged in the sustain jack... headphones that are inadvertently plugged in there would sustain.
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