DX7s Repair (not just a battery change)
15:50
Lets fix an original Yamaha DX7 Synthesizer
41:30
Korg M1 Repair and Renovation
1:39:19
The Legendary DX7 Sounds - FAMOUS SONGS and Patches
14:45
Yamaha DX7s repair | Replacement battery mod & broken pitch bend
22:13
Tape Deck Fix
16:52
I bought a YAMAHA DX7 for $100 - can I FIX it?
46:21
The 5 kilowatt Crown
39:34