Hi, I have a Yamaha keyboard for almost x7 years and all of a suddend it don't want to switch on. Can you guys fix it.

If the on/off button on your Yamaha PSR-S750 keyboard is not working, there could be a few possible issues. Here are some things you can try to troubleshoot the problem:

Make sure that the keyboard is properly plugged in and that the power switch is in the "on" position.
If the keyboard is plugged in and the power switch is on, try unplugging the keyboard and plugging it back in to see if this resolves the issue.
If the keyboard still does not turn on, try using a different power outlet or a different power cord to see if the issue is with the power source.
If the keyboard still does not turn on, there may be a problem with the on/off button itself or with the keyboard's internal electronics. In this case, you may need to contact Yamaha for further assistance.
As for the issue with some notes being too loud, there are a few potential causes:

Make sure that the volume of the keyboard is set to an appropriate level. You can adjust the volume using the volume control knob on the keyboard or by using the volume control on your amplifier or speakers (if you are using them).
Some notes may be louder due to the way they are played or due to the settings on the keyboard. You can try adjusting the touch sensitivity or dynamics settings on the keyboard to see if this makes a difference.
If the issue persists, it is possible that there is a problem with the keyboard itself. In this case, you may need to contact Yamaha for further assistance.

Question edited for clarity 'make model (what it is)'.
Question moved from Computers.

Open it up and look for a motherboard battery. Also look for discoloured components and also bulging capacitors.

https://www.google.com/search?q=Yamaha+Motif+6+freezing

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I'd suspect power supply first - filter capacitors may have leaked/dried out. That would be an easy fix for someone familiar.

It sounds like you are in need of a new piano. These are common issues with keyboards. The age is a big factor. It would cost just as much in repairs as it would to buy a new keyboard.

Check that your power adapter is 12 volts DC AND MOST IMPORTANT is the center pin is positive... this is reversed of MANY adapters used for pedals, etc. The current rating should be around 1.5 amps. Don't take another techs word for it... check it yourself.

That's the thing with today's electronic and why warranty length is so important. Where did you buy your keyboard? It's strange that they won't fix it if it's still under warranty. My Casio CTK-2100 came with 1 year free service and they fix one key that stopped function in few days. I'm pretty sure Yamaha has the same warranty length. You sometimes have to be very persistent with them though...

Hi,

I lost a user manual, then found these guys. They emailed it to me in about 2 hours and it only cost about £3, which i thought was very reasonable.

http://findmymanual.com/

Hope this helps.
Jane

I`ve had a similar problem with a Korg that I use at the club and on gigs, I don`t know whether Yamaha use a similar method or not but when I stripped mine down, I found that the glass LCD panel is connected to the PCB via a ribbon cable which gets sandwiched between the PCB and the LCD panel when screwed up, It`s not soldered or hard wired to the PCB, It was producing intermittent connections between the uPC and the display panel where parts of letters and symbols were missing. When I removed the panel, I found that it was oxidized so I used some switch cleaner which doesn`t leave a residue (Don`t use lubricant or WD40 as this will destroy the LCD panel by penetrating between the layers of Liquid Crystal rendering it useless) and gently cleaned the contacts on both the LCD and PCB panels (Don`t spray the panel or this could penetrate) by spraying a small amount onto a tissue then gently wiping this into the nooks and crannies with a nail brush then wiping off the excess with another tissue. I`ve had no problems since, (touch wood). Please use extreme caution when working with these panels as they are dedicated to your keyboard and therefore extremely expensive to replace. If yours has an extension lead from the LCD panel to a plug on the PCB, it should be a lot easier to clean this one cable where it enters the plug on the PCB than mine was, but still use extreme care. Best of luck, Ian

Hi Simon. Has the cable to your Mike been trapped under the stand, trodden on etc. Could be a faulty plug or even Mike/switch. Did the Mike ever crackle under use?

Have you another Mike and lead to try?

Sorry for the obvious questions but I have seen this happen before and it was a faulty lead...

I was bird so I got on my yamaha won"t I c it and it don"t turn on