The screen is not easily replaced because of where it's located. It's beneath another board and the process takes a skilled technician. Call Yamaha Service at 714-522-9000 and get an estimate before making the purchase. BTW: You can also use an inexpensive DVD player for the screen, but you may have difficulty reading the bottom of the screen where the numbered buttons are displayed.
Good luck,
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)