Yamaha DX100 Repair and Review
17:26
Korg Poly 800 Battery replacement and factory reload.
18:18
Intellivision ECS Keyboard Repair and Demo
8:49
Bad Gear - Yamaha DX100
24:31
Restoration Digital Piano YAMAHA | Restoring electric piano professional
10:24
Meet the little-known "Soundblaster" Keyboards
15:50
Lets fix an original Yamaha DX7 Synthesizer
12:44
Casio MT 240 - Repair, Restore and Review
25:07