Question about Yamaha P85 88Key Portable Digital Piano
Power button works keys produce sound but all other sound setting buttons do not work.; only the master volumne button works. I have to pull the electrical plug to turn off piano. Tried reset after plugging in electrical cord again and by turning on power with standby/on button while holding highest C key but did not work. Any suggestions?
Posted by Anonymous on
1) Try a partial reset by holding down the last white key while turning the unit ON.
2) If you haven't recorded any performance(s), for a full reset, hold down on the last white key AND THE lst three black keys while turning the unit ON.
Posted on Aug 04, 2015
a 6ya Expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
have you tried using the can of air. you can get it at almost any drug store walmart or kmart. just spray the can of air between the keys and they should become unstuck.
Posted on Dec 13, 2008
you may not need to open it up.
try using a wax based furniture polish on the keys, it will leave a layer to act as a lubricant between the keys.
Posted on Aug 24, 2009
Plug in your ear phones to see if you can hear the sound that way. If not you are experiencing some internal failure in your integrated amp output.
In that case you will need to get authorised service.
Posted on Oct 06, 2009
White spirit is NOT what you should use. Mineral spirit leaves a residue film.
Use 99% isoprophyl alcohol.
ALSO inspect the contactboard for cracks by candeling with bright light behind it.
Posted on Nov 01, 2009
Testimonial: "bur isnt it strange that certain keys have stopped working? ie most the A keys"
Check if it might be dragging on the edge of the case. The restoring force for some of these comes from a silicone rubber dome that is oart of the contact. SOMETIMES the dome fails.
Posted on Nov 29, 2009
Testimonial: "sounds good but i am a novice with repairs and do not really understand all the terms used. also, i am not sure how to go about fixing or getting repl"
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