Question about Yamaha MM8 MUSIC SYNTHESIZER

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Sustain pedal the sustain pedal wont work with my yamaha mm8 keyboard we would plug it in but it would only work with the foot control. it would cut off the sound after letting go of the keys and letting go of the pedal. now with the sustain pedal it cannot sustain the note as it should. i know that there is a switch at the bottom but even then it wont work.

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Posted on Jan 02, 2017

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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

Posted on May 15, 2009

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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.

Posted on Dec 24, 2010

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You may be trying to use this with a Roland synth... they require the OPPOSITE type switch.

If you have a Yamaha higher end product such as Tyros, there is a setup screen in the utility menus to set the polarity of the sustain and other inputs and that setting may be wrong.

Posted on Jan 14, 2011

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SOURCE: My yamaha ydp-160 sounds like

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.

Posted on Aug 07, 2011

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1 Answer

Sustain issue with Yamaha MM8


Your pedal may be the wrong polarity for this keyboard. Different manufacturers wire differently. And some use trs 1/4" and others use ts 1/4". Contact Yamaha customer service to get the correct pedal for your instrument.

Apr 08, 2016 | Yamaha MM8 MUSIC SYNTHESIZER

1 Answer

P90 sustain sound won't stop some times when am playing


Check and see if there is a switch on the foot pedal. Check the P-90 menu under footswitch to make sure it is set to sustain.

Feb 25, 2015 | Yamaha Music

3 Answers

I plugged a sustain pedal from my Yamaha DX7 on the dumper pedal jack but it works opposite as it should (by pressing the pedal sound cancels as i release the keys; when pedal runs completely free sounds...


every sustain pedal got different polarity.. normally just go to global setting on your keyboard and change damper polarity setting to plus or minus (select which one work with your sustain padle).

Jul 26, 2011 | Korg M50 73 Note Workstation

3 Answers

Hello- my P95 sustain pedal does not work when plugged in but the sustain works when you disconnect the cord from the back of the keyborad


This is confusing... you say "the sustain works when you disconnect the cord"? How can that happen? and doesn't work when it is plugged in.

MOST sustain pedal problems are due to people using a different pedal than the keyboard is designed to use. It is very common that someone tries to use a Roland sustain pedal on a Yamaha and oof course it doesn't work because the Roland pedal is normally closed and Yamaha usually requires a normally open contact.

A FEW keyboards now check the state of the pedal input when power is first turned on and configure the pedal polarity accordingly. For these keyboards, make sure the pedal is plugged in before power is turned on.

Apr 02, 2011 | Yamaha P95 Digital Piano

2 Answers

Hi. I'm Using PX330 as a midi controller that plays "Galaxy pianos" in cubase 5. I'm interested in buying a continuous sustain pedal (the one I got with the piano is an On\Off pedal). can you...


The Yamaha FC-3 uses a TRS (three conductor plug). The PX330 does NOT use TRS jacks for the sustain and sostenuto pedals so they are NOT compatible with the Yamaha FC-3. Therefore I would conclude that continous sustain that the Yamaha pedal would be used for is NOT supported.

Feb 15, 2011 | Casio Privia Keyboard Case

1 Answer

Hi, i purchased yamaha fc15 sustain pedal yesterday. when i connected this pedal to my Roland E-09 keyboard through foot switch port, it activate Start/Stop button ( of arranger & song controls ) and...


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.

Dec 24, 2010 | Yamaha Fc5 Sustain Footswitch

1 Answer

Is a sustain foot pedal similar to a tattoo machine pedal?


The sustain pedals have only two wires. Usually they terminate in a 1/4 inch mono plug.

yamaha USUALLY sustains when switch is closed. Roland usually sustains on a switch between the wires when the switch is open.

NO POWER should be supplied BY the sustain pedal... it is ONLY a switch.

Apr 19, 2010 | Casio Ctk 496 Electronic Keyboard with 61...

1 Answer

I want to plug in a sustain pedal to my very old yamaha psr 300 keyboard but there isnt a slot. the only slot it fits into is the headphone slot, but then you get no sound! can I get an adaptor for this?


Sorry to bring the bad news but the PSR300 does NOT have a connection for a sustain pedal.

It will however recognize a MIDI command for sustain so if you had a MIDI sustain pedal that emitted controller 64 code, you could use that.

It is UNLIKELY you would want to do this as such devices are not readily availablle. If you slaved this from another synth that had a sustain pedla capabilty you could play booth together and use the sustain of the other synth.

Dec 26, 2009 | Yamaha Portable Keyboard with 61...

2 Answers

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

Mar 12, 2009 | Yamaha Music

2 Answers

Sustain Pedal Opposite Effect


I found that if I plug in the sustain pedal BEFORE turning the power on, it works fine. If I plug in the sustain pedal AFTER turning the power on, then it works in the opposite way. Probably just the design. So I would try playing with that before doing anything drastic.

Feb 16, 2009 | Yamaha Full-Size Keyboard

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