Yamaha PSR Conductive Silicone Rubber Key Contact Strip for PSR550/1000/S700/S900

Yamaha PSR550 / PSR1000 / S700 / S900 Conductive Silicone Rubber Key Contact Strip

A 12-key conductive silicone rubber key contact strip that replaces worn or unresponsive key contacts in Yamaha PSR electronic keyboards. It is made in our own plant in Dongguan, the same factory that produces custom silicone rubber products for POS, medical, industrial and automotive equipment.

1. Specification

2. How It Works

The strip sits inside the keyboard, directly against the PCB board. Each key press pushes the conductive carbon pill on the back of the strip onto the corresponding contact point, closing the circuit and registering the note.

Once the carbon pills wear out, keys become unresponsive or need heavy pressure to sound. That is usually the first sign that the strip should be replaced. For more on how the pills and the button structure work, see conductive silicone keypad buttons.

3. Check Your Model Before Ordering

This strip fits the following Yamaha models. Confirm your model number on the label at the back or bottom of the keyboard before ordering.

1. 1
   Read the model label on the back or bottom of your keyboard.
2. 2
   Count the keys on your old strip. This part carries 12 keys.
3. 3
   Measure the strip length. This part measures 170 mm.

Other Yamaha models use different strip lengths, key counts and pill layouts, so a strip that looks similar may not work. If your model is not on the list above, check with us before ordering.

4. How to Replace the Strip

This is a drop-in replacement for the original strip, so it can be fitted without special tooling.

1. 1
   Power off and unplug the keyboard, then let it stand for a minute before opening the case.
2. 2
   Open the case and locate the contact strip beneath the keys.
3. 3
   Photograph the old strip in place before removing it, so you can match the orientation of the new one.
4. 4
   Lift out the old strip and check that no carbon residue or debris is left on the PCB contact points.
5. 5
   Seat the new strip so that every pill sits directly over its contact point, then refit the case.
6. 6
   Power on and test every key, including the ones that were failing before.

If several keys still fail after replacement, the problem is usually on the PCB side rather than the strip. Send us the details and we will help you work out which part needs attention.

5. Conductive Pills: What to Look For

Conductive pills are the carbon-loaded silicone contacts moulded on the back of the strip. Each key press brings one pill into contact with a pad on the PCB, closing that key's circuit. Their condition is what decides whether the part works at all.

Where those differences come from is mainly a material question. Our article on how conductive pills are classified and used covers that side.

6. Quality Control at FromRubber

Every order is inspected for conductive pill integrity and strip appearance before shipment. Our certificates are available for download if you need them for your supplier records.

7. Ordering Information

FAQ

Send Your Inquiry

Tell us your model number and quantity and we will reply with the price and lead time. If you need a custom keypad instead of a stock part, send your drawing and we will come back with a quotation.

Send your inquiryAsk about custom keypads

Last updated: 21 September 2026 by the FromRubber engineering team