[Coco] Disk Drive FD 501 Floppy

Stephen Fischer SFischer1 at Mindspring.com
Sun Apr 14 23:32:38 EDT 2019


Sounds like a good cleaning is in order, perhaps some grease has 
hardened but gets soft enough to allow operations when heated.

Then lubricated with fresh grease.

SHF


On 4/14/2019 8:17 PM, Melanie and John Mark Mobley wrote:
> If I let my floppy drive warm up (stay turned on for 25 minutes) then I can
> boot OS9.
> If I do not let it warm up then it hangs after two lines of "..." dots.
> What could be wrong with my 501 floppy drive or 501 floppy controller?
> If I turn off the computer but leave on the floppy drive for a cool down
> time, then turn the computer back on it will work just fine.  So the problem
> is with the floppy drive or floppy controller.
> Another time we swapped out the floppy drive and that fixed it, so that
> narrows it down to the floppy drive.
> How many parts make up the floppy drive?  Power supply, Floppy drive 0 & 2.,
> Floppy drive 1 & 3, and ribbon cable.
> The ribbon cable is new.
> Should I swap floppy drive 0 & 2 for floppy drive 1 & 3?
> What adjustments can be made to floppy drives?  Fix the power supply, belt,
> rpm, head alignment, ...
> Can I get it repaired at the CoCoFEST?
> 
> John Mark Mobley
> 
> 
> 


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