Sharp GF-777 Restoration 夏普GF-777翻新
I restored a Sharp GF-777, replacing all belts and friction wheels, and the pinch roller
repair
Alesis M1 Active MK2 Repair 维修记录
Repairing a pair of classic Alesis monitor speakers 维修一对经典的Alesis监听音箱
Roland XP-80 Repair 罗兰XP-80合成器维修
A Roland XP-80 synthesizer repair writeup