First of all, I want to thank you for your quick replies.
I really appreciate it.
I’m sorry for the late response, it’s been a busy week.
ediflorianUS wrote on 2023-03-12, 16:16:
first-thing's first , contact-clean full drive ,isoprop-alcohol clean head, remount everything as it was and if not working-reflow pcb-pin contacts. then check for drainage (resistance on 5v pins). you can also try to change the head only from standard floppy. may work if it's close enough.
As you suggested, I cleaned the entire drive, including the magnetic heads and every single connector.
However, during the disassembly, I noticed a burnt smell coming from the floppy drive.
And sure enough, there is a blown resistor on the controller PCB. (I’m attaching some photos for reference.)
Furthermore, I noticed weird stains and rust everywhere. I think my Compaq SLT/286 has liquid damage, or at least the floppy drive.
Unfortunately, I made a mistake during the reassembly and damaged the connector for the stepper motor.
The little blue plastic tab came loose because the glue disintegrated.
I can’t glue it back in place because my hands are too shaky (I have ADHD and holding still is not my strength).
I think it’s time to give up on this floppy drive.
Even if I had been more careful, I believe the drive would’ve been unfixable anyways.
It is likely that both heads are dead because they crashed with each other.
Thermalwrong wrote on 2023-03-13, 02:49:
I don't know much about what the SLT looks like inside since I've only got an LTE laptop. Looks like the 26-pin 2.54mm connector is on a ribbon cable so you couldn't really fit a regular 3.5" desktop size floppy in there with an adapter cable, I think. Could you take some pictures to show what the clearance is like?
How long is the OSDA-52B?
I made up an adapter PCB that hasn't yet been sent off for production, which converts a regular 26-pin floppy into the Citizen VIDA-15B pinout - it would not be hard for me to make one that does the same for the OSDA-52B's 2.54mm pins instead. Then you could fit a regular desktop drive if it's short enough.
It looks like there’s enough clearance to fit in a regular desktop drive.
In fact, I’m pretty sure the Citizen OSDA-52B is a “normal” 3.5” drive (at least in terms of its size).
With that in mind, I think your adapter PCB should work just fine.
I’m attaching some photos.
Feel free to ask if you need more information.
I hope this helps! Let me know if you need anything else.