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Oops. I thought I'd clean the heads of the disk drives on the Tandy TRS-80 before trying them with the machine. The head on the top side fell off.

It seems it was just glued on, so I applied some fresh glue and stuck it on again. The good news: this was not the boot drive. The bad news: it doesn't seem to be working. Maybe I messed up the head alignment? Guess I need to hook up the oscilloscope and check the signal coming from the head.

At least the boot drive is working, and for the first time in my life I booted up a TRS-80 from disk.

Interesting mods as well, to select between 40 and 80 track operation.

Oh, and it turned out the heads weren't that dirty to begin with, probably didn't need a clean anyway.


Two 5.25" floppy drives with a black front mounted on top of each other in a beige metal casing. A mains power lead and ribbon cable behind it are just out of focus.

Two 5.25" disk drivers mounted on top of each other in a metal frame, the outer casing is removed revealing a green printed circuit board mounted on top of the top drive.

A black plastic rectangular part bent out of the casing of a floppy drive, the read/write head dangling from a flex pcb that is no longer attached to the plastic that is supposed to hold it.

A black plastic rectangular part with a read/write head on a flex pcb stuck in place where it should be.

#RetroComputing #Tandy #TandyTRS80 #TRS80 #Electronics #ElectronicsRepair

#electronics #retrocomputing #tandy #trs80 #tandytrs80 #electronicsrepair
This entry was edited (1 week ago)
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