Question about Yamaha Full-Size Keyboard

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How do I take apart Yamaha PSR-280 keyboard to clean keys.

The keys are making a rubbing noise when I press them to play. The notes come out proper, but the noise is getting worse, and I think it needs to be taken apart for cleaning, maybe.

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  • omdragonfly
    omdragonfly Jan 27, 2009

    No, it's not a full size keyboard. It's got 61 keys, I think. I didn't put the full size label on there above my question. It's smaller, and portable. It sits on a foldable stand.

  • Anonymous Mar 13, 2014

    The C C# and D keys on my Keyboard either clack and play very loudly regardless of pressure, or won't play at all. Should I take the keyboard apart and examine the keys from the inside?

  • Anonymous Mar 23, 2014

    Some of the keys are no longer working. They go flat when pressed.

  • Anonymous Mar 23, 2014

    Keys stopped working. Go flat when pressed.

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There are 17 screws on the underside of the keyboard that need to be removed. The base cover can then be removed. This gives access to the keyframe assembly which can be removed.

Posted on Feb 08, 2009

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Does it have an internal battery?


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Dec 25, 2015 | HQRP AC Adapter / Power Supply for Yamaha...

1 Answer

Key B2 playing to loud, not touch responsive


What is your piano brand and type?
Damage to the contact rubber can cause note plays loudly or,
note does not plays at all.
It is caused by:
1. Carbon rubber contacts dirty / dusty (yellow arrow). Clean with a pencil eraser (or cloth). Gently rub it.

key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-0.jpg

2.
Contact rubber is torn (your case). If this happen,it can not be repaired or glue. So, you have to replace one octave.
The yellow arrow indicates the side that is often torn.
key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-1.jpg

Rubber side that is torn, usually not seen, unless we move / pressing gently on top (In the rubber contact position is not installed on the board.)
Examples of this picture was yamaha psr.
key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-3.jpg
.

Oct 14, 2015 | Musical Instruments

1 Answer

Yamaha psr 9000 keyboard


Try dusting the keyboard with talcum powder. Shake the unit around a bit, so it gets under the keys. That will likely help "lubricate" the keys and quiet down the noise.

It works on my piano. Nwo all I hear are the sour notes I hit!

Jul 27, 2014 | Yamaha Musical Instruments

1 Answer

Yamaha psr 1000


Hi
I'm not sure I completely understand your problem but......it sounds like you might be in "Fingered On Bass" mode. This means if you play a chord like F using the notes FAC- if you play them in 2nd inversion (so the order is CFA) the psr-1000 will make the note "C" the bass note. In this mode if you played ACF then "A" would be in the bass part. Change to "Fingered Chord"-this will enable you to play any chord with the tonic (the name of the chord) F whether you play FAC, ACF or CFA in the bass part. I don't have access to a psr-1000 but often with Yamaha instruments this can be changed by pressing and holding the "Auto Accompaniment" button. I hope this helps.
Musicwez

Aug 04, 2013 | Musical Instruments

1 Answer

Yamaha psr 295


Hi, This is probably due to worn rubber contacts. The sound is switched by pressing a key which in turns press a carbon contact on the PCB under the key. In time these wear out and need to be replaced.

Firstly open up the keyboard and locate the rubber contacts, check to see if each one is seated squarely, if they are not seat straight then this can create the problem you mention.

If all are OK then you will need to replace the strip which is causing a problem.

Spares are available from many sources including :

http://www.beckettsmusic.co.uk/shop/scripts/prodView.asp?idproduct=16049

Jul 20, 2013 | Yamaha PSR-295MS Portable 61-Key...

1 Answer

Yamaha psr-280 flashing display no key response or sound. Is it dead??


Your adapter should be a 12 volt DC delivering 2 amps (2000 ma). If the adapter is too small, you will have the symptoms you are seeing. Make sure the polarity is correct. DO NOT use the so called "universal adapters".

Apr 13, 2011 | HQRP AC Adapter / Power Supply for Yamaha...

1 Answer

The keys are broken and some at no sound can I order the notes and sound kit. Yamaha PSR-295 . Regards Elias


Hi, i think you can. You can go to any of the Yamaha companies around you area and explain to them the problem of the keyboard. They will give you good and quality replacement part for your Keyboard.

Make sure you go to only Yamaha company to avoid getting a wrong part for your Keyboard.Avoid road siderepairsforissue like this,it's more complicated to handle

I guess that will do.

Thanks for using fixya...

Jan 12, 2011 | Yamaha PSR-295MS Portable 61-Key...

2 Answers

My yamaha psr 420 has most of the middle keys not producing any sound when pressed. The others too produce an abnormaly high sound when pressed. Please whats wrong and how do i solve this problem?


Your key contacts have gotten dirty. Two contacts per key are used to sense velocity and if one doesn't work the sound will be full velocity and loud.

The contacts are conductive rubber "pills" in silicone rubber domes that the key presses down onto circuit board traces under the keys. Clean both the "pills" and the black portion of the circuit board GENTLY using ONLY 99% isoprophyl alcohol and QTips. There is a lot of disassembly required and one has to keep track of where the screws go and length and thread type to re-assemble after cleaning. Also great care must be taken to not damage the ribbon cablles connecting the top and bottom halves of the case.

Jan 11, 2011 | Yamaha NP 30 76 Key Lightweight Digital...

1 Answer

Some of the keys do not play on our Yamaha PSR-330. How can we fix that?


The key contacts have gotten dirty. The contacts are CONDUCTIVE rubber pills that are pressed onto circuit traces on the circuit board under the keys. Onehas to dis-assemble the keyboard very carefully noting the size and location of all the screws and using great care of the cables that connect the top and bottom of the case.
when you remove the keys, you will find silicone rubber strips with the black pills underneath, two pills per key.
Clean these with ONLY 99% isoprophyl alcohol and Qtips as well as cleaning the circuit board traces they contact.
Carefully re-assemble the keyboard.

Jan 09, 2011 | Yamaha MM6 Mini Mo Keyboard Pro

1 Answer

Yamaha PSR-280 : AC power instead of DC power


An answer, but likely not a solution. I believe all Yamaha PSR series keyboards use the same 12 VDC adaptor, so I looked at the electrical schematic for another model I have. There seems to be no fuse on the power input. There are two components shown on the positive and negative wires off the power socket, but the symbols do not look like anything I have seen for fuses - they may be resistors. Power goes directly to a 5 VDC voltage regulator, which powers all of the solid state componenents. Too much voltage of the wrong type could have easily ruined many of the sensitive components.

Your only hope is to check the power socket area for the possibility of having fuses. My drawing shows the power socket, voltage regulator, and audio power amplifier being on one circuit board. That may not actually be the way it is in your model.

Good luck!
(your English is fine)

Feb 23, 2009 | Yamaha Portable Keyboard with 61...

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