I got as far as the blinking light 1. Bad. Means the hard disk is probably fried. Power supply is probably fine. You need a technician to remove the hard drive from the box under the piano and send it to Yamaha for testing. If the drive is bad it is expensive. Just to give you an idea, I charge around $700 to replace the drive (Washington, D.C. area) and this includes first visit to test problem and remove hard drive as necessary, then installing the replacement hard drive. To ease your mind, call Yamaha Tech support at 800-864-1569; push the appropriate buttons for Disklavier Tech support and hopefully you will get Martin Arroyo. Tell him about the blinking light. Carol Beigel
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Re: [disklavier] Power Unit Lights Mark IV
2015-08-18 by Carol Beigel