Repairing a Commodore 1541 Floppy Drive

Some time ago I acquired a very affordable Commodore 1541 drive. This is the original one that came with the earliest C64s, and it is an absolute unit of a floppy drive. It contains a pretty hefty transformer and lots of metal parts. This device came es untested/defective, and sure enough: both LEDs stayed on after power up. So I took to it to try and get it repaired.