We may have found other answers which could help you.
Click here for Sound Notes Help
Technics PR602 replacing the disc drive with hard drive?
yamaha keyboard PRS-70?
Need a main board for my pr370?
How can I fix my Yamaha Clavinova CVP-55?
Technics SX-PX554 no sound?
Technics SX-PR603, edelp for repair?