New MM8 and G and C# keys don't play.

[Jeff Lyon]

Has anyone heard of this happening? Just purchased a new MM8 for my son and none of the G or C# keys produce any sound. Besides that they keyboard seems to be working fine. Is it just defective or is there something else to it?

 

[happyrat1]

Definitely sounds like a manufacturer's defect. Take it back for another one.

 

[b3maniac]

Return it for another. D

 

[DickR]

If it is new, take it back and demand a new one. Most probably it is only the rubber contactstrip under the keys but DON'T open it. You will lose the guarantee.

 

[Jeff Lyon]

DickR, that is interesting because I did a search and found that there were several instances of Yamaha keyboard owners that had a similar issue.

Thanks,

 

[DickR]

NOT with new keyboards and not only Yamaha! It is a problem that occurs sometimes after years with older and heavily used keyboards. I did replace the contactstrips on a few keyboards over the years but if yours is new and it is what I think, it is a matter of 'bad' put together and end control of the product. Easily to correct however but no way I would fiddle around with it. Let your dealer handle the problem to keep you warranty.

 

[Foobar]

I have a nearly identical problem with my several-year-old DGX 300. The top 3 D and A# keys just stopped working.

Since I'm not under warranty, I could really use detailed information about repairing a contact strip, and/or how much it costs for service.

 

[DickR]

I advice you to go to PSRTUTORIAL.COM a dedicated Yamahaforum with a lot of very helpful people. You can search for 'how to change a contactstrip' however it is a vey good article with pictures but for a PSR3000. I am not familiar with your keyboard so I can't be of any further help.

 

[Foobar]

Thanks for the suggestion. Unfortunately, PSRTutorialForum won't let me register a new account, and says to contact an administrator, but there's no Contact button or email address.

 

[happyrat1]

Try a different user name. You may be trying to use one that's taken already.

 

[Jeff Lyon]

So I ended up taking the MM8 to the closest authorized Yamaha repair shop and it was about $190 to fix the leads that had come loose and caused the issue.

 

[Rajesh Kumar sahoo]

I have the same problem..my psr i455 is 3 months old and the next day the problem automatically solved and this may be due to moisture.
No worry about that.