dkerfoot Posted May 31, 2017 Share Posted May 31, 2017 I have three SF 354 drives that don't work. One uses a direct drive, the other two use the belt drive. I got replacement belts, they still don't work. All three spin but the disk can't be read. I've tested the disks on the internal floppy of an 520STfm and they are good, single sided format. External cable show good continuity all pins. I cleaned the heads with isopropyl and cotton swabs. Replaced the electrolytic caps on one of them, even though they looked fine. Troubleshooting suggestions? Quote Link to comment Share on other sites More sharing options...
Zogging Hell Posted May 31, 2017 Share Posted May 31, 2017 What happens when you format a floppy with them? Quote Link to comment Share on other sites More sharing options...
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