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Yamaha organ repair

No volume when you play very soft sound

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Posted on Jan 02, 2017

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SOURCE: Model C-60 Yamaha organ. Loud hissing sound

This is likely in the power amp or the drivers for it.

The key to troubleshooting is a schematic. Try to procure one.

You MIGHT try using circuit cooler in the area of the power amps to isolate a bad component or cracked circuit board.

Posted on Mar 10, 2010

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SOURCE: Yamaha PSR 740 Volume knob crackles when turned and the sound cuts out when played at higher volume

There is dust in the sliding mechanism, which can be cleaned with a good electronic cleaner, which does not evaporate when drying. If that does not work, replace the volume potentiometer, the `part behind the knob.

Posted on Dec 05, 2011

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1 Answer

I have just got my grandmothers Yamaha B-4CR organ there is low volume coming out but when I move the vplume pedal it doesnt increase the sound... What can I do


As I recall, the volume pedal on that model is optically coupled, meaning it operates via a light source. I'm afraid it will probably need a tech to come check it out. You can find on close to you by calling your nearest piano/organ store, or by going to the MITA tech site which has a search engine. Here's the link-
http://www.mita.com/

Jul 22, 2016 | Yamaha Music

1 Answer

I believe organ hasn't been played or even turned on in over 10 years. The top keyboard plays if I turn on a setting such as piano or trumpet however I can't just get the organ keys to play.


Since the organ has not been used for a long time, I suspect that there can be degradation of the electronics, specially with electrolytic capacitors. hence I request you to switch on the Organ continuously and allow it to warm up, it there is improvement , then it will be worth to remove the bottom panel and clean up the boards,dry the PCB with a hair dryer and reconnect the boards.
Hope this will help.

Jan 23, 2016 | Music

1 Answer

QS8 keyboard. Why is volume in organ mode much louder than piano mode when I switch between modes without touching volume slide?


On organ mode, in general, almost all brands of the modern keyboard, velocity setting is not enabled. Setting velocity is used to determine how much the level of the sound that follows how strongly you press the keys. It is really just to imitate the sound of vintage organs, which in the past, electronic organ technologi not use the velocity on the keys. So, how strong / slow we press the keys, the sound level will remain the same.
At the Piano mode,modern keyboard using setting velocity. This also to imitate an acoustic piano, which, if we press the keys slowly, the sound level will be slow as well, and vice versa.
So, in your case,at the same volume slider, try to play on the organ modes, note level. Moving to the piano mode and press the keys securely powered (full power). Then the sound level should be equal to the organ mode.
On modern keyboards, also included organ sound that added velocity setting. Usually found on the user bank.

Sep 01, 2015 | Alesis Music

1 Answer

Alesis QS8 keyboard. The volume of the organ is much louder than the keyboard when I switch between both modes without touching the volume slide. How can I fix this.


On organ mode, in general, almost all brands of the modern keyboard, velocity setting is not enabled. Setting velocity is used to determine how much the level of the sound that follows how strongly you press the keys. It is really just to imitate the sound of vintage organs, which in the past, electronic organ technologi not use the velocity on the keys. So, how strong / slow we press the keys, the sound level will remain the same.
At the Piano mode,modern keyboard using setting velocity. This also to imitate an acoustic piano, which, if we press the keys slowly, the sound level will be slow as well, and vice versa.
So, in your case,at the same volume slider, try to play on the organ modes, note level. Moving to the piano mode and press the keys securely powered (full power). Then the sound level should be equal to the organ mode.
On modern keyboards, also included organ sound that added velocity setting. Usually found on the user bank.

Sep 01, 2015 | Alesis Music

1 Answer

At times during a performance the organ sounds drops significantly compared to the ensemble sounds, what could be the problem?


Has it always done that? It could be it just doesn't have enough power to play organ at full volume along side the ensemble.

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Yamaha electone organ have no sound el 25 need help thnks...

Sep 03, 2013 | Yamaha Music

1 Answer

Yamaha EL70 organ - no sound.


This site offers a free onliine manual. http://www.nodevice.com/user_manual/yamaha/electronic_organs/el-70.html

I hope this helps you out!

Apr 18, 2017 | Music

1 Answer

Model C-60 Yamaha organ. Loud hissing sound


This is likely in the power amp or the drivers for it.

The key to troubleshooting is a schematic. Try to procure one.

You MIGHT try using circuit cooler in the area of the power amps to isolate a bad component or cracked circuit board.

Mar 10, 2010 | Yamaha Music

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