Greetings,

The on and off button on my Yamaha PSR 950 has become somewhat hard when turning off the keyboard. What I mean is I physically have to push it very hard to power off. Any ideas if this could be fixed or the issue might be?

Could be a internal spring button problem maybe a
quick mall spray of WD40 or other electronic safe lubricant
right inside the button might fix it,..
or could be on/off contact disintegration due to moisture, dirt, wear, etc, and has to be replaced as it is used so much on & off...at least it's still working...could be tome for service ......
or a good excuse to sell and upgrade...just sayin'

good luck
Paul.

PS you can surly order the button and attempt to open the bottom and replace it yourself probably only two wires etc..



https://www.youtube.com/results?search_query=replace+on+off+switch+yamaha+keyboard+

I hope it is something simple... like maybe a judicious "touch" of something like WD-40... then (after un-plugging the KB from the electric outlet,) a few presses in rapid succession to see if it appears to be better. Other than that, sounds like that toggle switch is about to "give up the ghost." If you are good at soldering, after some careful disassembly, it isn't difficult... but if you know a reliable KB Repair Shop, taking your place in the queue of customers is usually an unwelcome wait... but the safest alternative. Good luck.

DO NOT USE WD40! WD40 is a conductive and can destroy your keyboard if it gets on parts that run on micro-volt circuitry, which your keyboard does.

My on/off button is showing the same signs of wear and will be replaced by an authorized service center. It turns on normally, but it does not turn off properly anymore. This took a lot of years and daily use to happen. The cost will be about $100 and well worth it.

Good luck,

Gary

S950 turned out to be rather problematic with its buttons. Had the power button fixed by a service, too, but other buttons become less responsive over time as well - although I had the contacts cleaned in the service, it seems that the problem reappears rather soon.

The off-function didn't bug me that much, I got used to disconnect the cable from the AC adaptor (although doing that a lot makes the cable rather loose).

The service center didn't charge me for fixing the button, but they charge a lot just for the work they do, no matter how simple or difficult it is.

In any case, fixing these small problems (like buttons, contact strips, pitch bend wheels) can be costy and troublesome, but it's much cheaper than buying a new keyboard, even like PSR-S670, in some way we are hostages of our boards.

Can you spray wd40 on electronics?

Spray WD-40 directly onto any metal parts. The active properties in WD-40 will not only remove unwanted gunk and grime, they will also reduce friction and wear and protect metal from rust and corrosion. WD-40® Multi-Use Product has thousands of uses at home,
work and play.

Gary,
Does the same hold true for electronic spray cleaner?

The Best Electronic Contact Cleaners

Hosa D5S-6 CAIG DeoxIT.
CRC 5103 Quick Dry Electronic Cleaner.
WD-40 Specialist Electrical Contact Cleaner Spray.
Max Professional 2015 Contact Cleaner (DPC)
CAIG Laboratories DeoxIT Wipes.
MG Chemicals Super Contact Cleaner with PPE.
Permatex 82588 Electrical Contact and Parts Cleaner.

Standard WD-40 is a great lubricant for certain items, good for getting rusted bolts unstuck, but not the same as electronic cleaner, which leaves no film and does not conduct electricity after drying. Most electronic contact cleaners have a fast drying agent, often denatured alcohol, which leaves little of no film, while it dissolves corrosives and carbon. Keep in mind, though, it is a solvent, which can react with many plastics, and dissolve the inside of switch contacts when sprayed heavily.

Now, most of the switches in our keyboards are carbon contact switches, which also includes key-strips. They can be cleaned with denatured alcohol and a Q-tip, then allowed to dry, which takes just a few seconds and you are ready to go again. Some, however, cannot be cleaned because they are hermetically sealed to prevent moisture intrusion.

Why manufacturers of arranger keyboards went to these switches was they were cheap - follow the money, honey! Back in the old days, positive, latch-switches rarely failed, and when they did, they were easily replaced. But, we're stuck with what we have.

As for just pulling out the plug, make sure you have the volume turned all the way down to prevent surge problems in the main amplifier of the keyboard.

Hope this helps,

Gary