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Yamaha psr8000 contact strip replacement instructions

3 notes not working on keyboard C-D-E. How do I replace the contact strip?

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Yamaha np 32 some keys faint in response


This is normally caused by dirty or worn contacts.
Simply open up the keyboard and replace the contact rubbers when the sensitivity has been lost.

There are 4 different rubber contacts depending on which notes are not working

WJ231101 RUBBER CONTACT 16N-2M OCT 2M-55
WJ231200 RUBBER CONTACT 16N-2M OCT 2M-45
WJ231301 RUBBER CONTACT 16N-2M 76H 2M-45
WJ231401 RUBBER CONTACT 16N-2M 76L 2M-55

Nov 12, 2016 | Yamaha Music

1 Answer

HOW TO REPLACE CONTACT STRIP OF YAMAHA CLAVINOVA CVP 92 DIGITAL PIANO ?


Successful repair of my Yamaha Clavinova CLP 880

The principal to replace your contact strip will require one further step to that shown here where the customer has replaced the felts.

When you have the keybed out you will see the contact strip part 220. This is held in place behind the circuit boards. Remove boards, replace strip and reassemble.

It might be worth considering felts whilst you have the keyboard in bits as these wear out.


http://www.beckettsmusic.co.uk/shop/scripts/prodView.asp?idproduct=19108



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Aug 09, 2014 | Yamaha Music

1 Answer

I have ve a DGX 640. When the play the C, followed by D, the D is silent. It occurs also when I play the black key after its white neighbour.


Possibly a rubber contact switch problem.

Open up your keyboard if you feel confident about doing so.

Remove the rubber contact strip under the faulty notes and clear away any dust ( this can be a cause of the note not sounding ) Swap this rubber ( part 220 ) on attached picture with the one next door to it. If the problem has moved to the next octave then it is a worn rubber contact switch replace ( see link )

If not you will probably need to take to a repair centre as it may be more serious.
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Apr 03, 2014 | Yamaha DGX640 Music Keyboard

1 Answer

3 key notes not working and can't write my savings to the banks..


Hi, You can reset your whole keyboard by holding down the top C ( highest key ) whilst turning on.

This is unlikely to clear 3 non working keys. My guess is that the contacts under the rubber switches have worn or dust is under the contacts. You could try cleaning first under the rubber contacts if this fails replace the contacts ( 1 per octave ) Part WF212202 contact me if you need more information

Pictures attached may help 0482dd26-e9cb-4b61-b47e-f97d90aa782c.jpg 42e5c956-fedc-40b9-ae04-8bf3e98b22a2.jpg

Mar 28, 2014 | Yamaha DGX-640 Portable Grand Piano...

1 Answer

Yamaha p85 some keys don't work


If other keys are working around it the "simple" solution would be that the rubber contacts have worn and need to be replaced.

This will require stripping down the keyboard.

Part numbers 200 or 210 depending on which notes are not working.

These should be available from www.beckettsmusic.co.uk who do many spares for Yamaha keyboards with a good mail order service.

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Feb 06, 2014 | Music

1 Answer

No sound on one key


That's very annoying! The keys press on to a contact strip running the length of the keyboard. Over time this wears out and notes can either stop being dynamic or stop playing altogether. You can buy the strip off ebay and have a go replacing it yourself - not too expensive. I paid someone 50pounds to supply and fit one to a 61-note keyboard.

Dec 18, 2013 | Yamaha YPG-625 (YPG625) Digital Piano

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

5 Answers

Yamaha digital piano clp 170


This is a common problem with Yamaha keyboards. The problem is caused by worn-out rubber contacts in the keyboard assembly. In my old Clavinova CLP-500, there was one long rubber contact strip under the keys with two parallel strips of semiconductor material. The Clavinova circuitry determines key velocity by measuring the timing between when the key hits the first and second strips of semiconductor material. The harder you play a key, the less time it takes the key to hit the second semiconductor strip after hitting the first.
After years of playing the keyboard, the keys eventually cause tears in the semiconductor material and this messes up the timing measurement for key velocity. The only solution is to take the keyboard apart and replace the rubber contact strip with a new one.
I got rid of my CLP-500 four or five years ago and got a new CLP-170. The CLP-170 is now having exactly the same problem that the CLP-500 had. Yamaha has re-designed the rubber contacts in the CLP-170 so that there are now eight individual contact strips instead of one long one. The problem is essentially the same, though. You have to take the keyboard apart and replace the worn out rubber contacts.
Here are the part numbers for the rubber contacts that need to be replaced in the CLP-170: V8286600 Rubber Contact, 12 keys, D-C#   Qty. 6 V8286800 Rubber Contact, 11 keys, A-C#   Qty. 1 V8286700 Rubber Contact, 5 keys, D-C   Qty. 1
I suggest you also get a copy of the CLP-170 service manual, part number 001677. It has descriptions of all the steps necessary to take the thing apart and put it back together again. You'll also need a "rod" (which is just a long dowel), part number TX000670. Before you take the circuit boards off the keyboard assembly, you have to insert the dowel between the keys and the frame to keep the keys from falling back and getting in your way. A 5-foot long 1/4-inch dowel will probably work. (I haven't yet taken apart my CLP-170, and I don't have Yamaha's "rod," so I'm not sure if 1/4 inch is the right size or not. I'll report back here if it's not.)
Good luck, Howard

Sep 03, 2008 | Yamaha Full-Size Keyboard

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