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Three TEAC floppy drives not working

Older ThinkPads.. from the 600, the 7xx, the iSeries, 300, 500, the Transnote and, of course, the 701
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c5e3
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Three TEAC floppy drives not working

#1 Post by c5e3 » Sun Mar 24, 2019 2:59 pm

i have two floppy drives for my 300 and one external drive for my 365XD, which don't read or write anything. both motors spin correctly
the external one for my 701CS, however, works properly and makes exactly the same sound as the other three drives.
what could potentionally break in those TEAC floppy drives? one of the two from my 300 even was a new-old-stock, that i bough a month ago, which was still in it's rf shielded bag since probably 1992
300 (N45SL) 365XD 701CS T22 X220 X240 T540p X250 T480s

Thinkpad4by3
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Re: Three TEAC floppy drives not working

#2 Post by Thinkpad4by3 » Sun Mar 24, 2019 3:16 pm

Although TEAC generally doesn't make belt drives, check to see if the belts are worn out.
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Re: Three TEAC floppy drives not working

#3 Post by fultontech » Sun Mar 24, 2019 3:37 pm

The older system floppy drives seem to have much stricter operating parameters. I found that floppy diskettes made in the late 80's and early 90's work flawlessly in the ThinkPads of that time period. The floppy diskettes made after 2002-2003 work with newer systems, but the older systems have a lot of trouble to r/w consistently.
Also the newer generic floppys seem to dirty up the older drives quickly.

You may want to try some really old brand name disks that are still sealed, or a can of air and rubbing alcohol and cotton swabs.
IBM P75
IBM ThinkPad 700, 720C, 750Cs, 360C, 360P, 360CE, 360PE, 730TE, PC110, 365CSD, 365ED, 701Cs, 820, 600X, 770X, 240, T30
IBM RS/6000 43P 150
Lenovo ThinkPad X41T, X61T, X200T, X201T, X220T, X230T, X280
Lenovo ThinkCenter M92p Tiny, M900 Tiny

c5e3
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Location: Vienna, Austria

Re: Three TEAC floppy drives not working

#4 Post by c5e3 » Sun Mar 24, 2019 3:45 pm

Thinkpad4by3 wrote:
Sun Mar 24, 2019 3:16 pm
Although TEAC generally doesn't make belt drives, check to see if the belts are worn out.
there are no belts, this was my first guess too^^
fultontech wrote:
Sun Mar 24, 2019 3:37 pm
You may want to try some really old brand name disks that are still sealed, or a can of air and rubbing alcohol and cotton swabs.
i hope, i can find some. i didn't even knew, that there are such differences
300 (N45SL) 365XD 701CS T22 X220 X240 T540p X250 T480s

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