Hi people, been a long time since I've posted here. Anyways, my piano, a Yamaha P-250 that I've had for the past 17 years suddenly stopped working.

There is no sound playing when you play any of the keys. There is however sound when you play back the recorded midi tracks, and demos. There is also sound when you connect an external midi controller keyboard and play on that. This leads me to believe there is something wrong with the keys, or the key-summing board.

I have been scouring the internet for the service manual for this board, I have found one for the P-200 and one for the P-300, but none for the P-255. Is there any chance any of you good people have a copy of that manual? Or at least could tell me if the disassembly procedures for the other mentioned boards match my P-250?

Regards, and thank you in advance.