General discussion about piano makes, problems with pianos, or just seeking advice.
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We purchased a used Yamaha MX-100B (with Disklavier) last year and had it professionally moved and tuned once it arrived. It has worked fine since then, up until about 1 week ago. Part way through a playing a disk, the piano went silent and displayed "Piano Power Off - (PWM Over)!" If you power down and restart, it will again play partway through a song and display the same error. I'm curious if there is a simple fix for this or is it something to call out a pro for? I'm an electrical engineer with a heck of a background in "fixing" things, but without a maintenance manual or finding anything in the operations manual, I don't know where to begin. Any thoughts?
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Last edited by alexwaston
on 02 Mar 2017, 05:54, edited 1 time in total.
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You will probably need to contact Yamaha Technical Services for help/ advice.
Give them your details / location / piano model / serial number and fault of piano.
- Senior Poster
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- Joined: 05 Jan 2008, 19:18
I have a feeling your on your own with this. Didn't Yamaha let go the guy who was their only expert in this field many years ago. I got the impression they simply swap the whole piano out in warrantee period and leave you to it out of warrantee.
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give Adrian a ring he will sort you out
+44 (0) 7885 568846
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