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Thread: TEAC FD-55GFR 7193-U won't read or write

  1. #1

    Default TEAC FD-55GFR 7193-U won't read or write

    Hi,

    I recently pulled the drive from storage only to find out that it doesn't work. When I try to access the drive I get "General failure reading drive B:".

    I cleaned both, the rails and the heads. During boot, the LED does light up and I can see the head move correctly back and forth all the way.

    Anything else I can look at?

    Cheers
    The Geek In Me - my computer blog

  2. #2
    Join Date
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    I can think of one or two things, but without any specific diagnosis ("General failure" is a diagnostic message that's a catchall for everything from a bad controller to unrecognized media).

    For example, are the heads securely in contact with the media? Have you configured the drive correctly? Have you told the BIOS that this is a 1.2M drive?

    Boot DOS and bring up ImageDisk and see if you can't nail things down. IMD has both RPM and alignment tests--and doesn't pay attention to what the BIOS says the drive is.

  3. #3
    Join Date
    Jun 2016
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    Guisborough, England
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    Could be dust. Drive needs a blow-job. There are a couple of sensors that indicate that the disk is in and spinning, and if they're dusted up, then the drive will think there's no disk, or it's not spinning. A few sharp puffs (as dry as possible) into the front usually helps. If you do a couple, and try again, and the read process seems to get a bit further, then keep at it.

    Geoff

  4. #4

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    Quote Originally Posted by Chuck(G) View Post
    I can think of one or two things, but without any specific diagnosis ("General failure" is a diagnostic message that's a catchall for everything from a bad controller to unrecognized media).

    For example, are the heads securely in contact with the media? Have you configured the drive correctly? Have you told the BIOS that this is a 1.2M drive?

    Boot DOS and bring up ImageDisk and see if you can't nail things down. IMD has both RPM and alignment tests--and doesn't pay attention to what the BIOS says the drive is.
    The only thing I've done is configure the drive in BIOS as 1.2M. Haven't touched any of the jumpers - currently DS1=closed.

    I'll see, if I can do anything with ImageDisk and report back...
    The Geek In Me - my computer blog

  5. #5

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    Quote Originally Posted by Half-Saint View Post
    I recently pulled the drive from storage only to find out that it doesn't work. When I try to access the drive I get "General failure reading drive B:".
    I would configure the drive as drive A just to remove one more variable from the equation. Put a known good drive in as A: and after you're sure that works OK put in the questionable drive and see how it responds. It's always better, easier and simpler to remove all variable possible when testing something.
    If you're looking for DS/DD or DS/HD 3" or 5" floppy disks, PM me. I've got some new, used, and factory over-labeled disks for sale.

    There is a crack in everything. That's how the light gets in. -- Leonard Cohen
    ☞ Time flies like an arrow; fruit flies like a banana.

  6. #6

    Default

    Quote Originally Posted by Half-Saint View Post
    Haven't touched any of the jumpers - currently DS1=closed....
    Is that DS1 as in 0 - 3 or 1 - 4? In any event it needs to be in the second position. Whether the second position is 1 or 2 depends on the numbering scheme used on the drive..
    If you're looking for DS/DD or DS/HD 3" or 5" floppy disks, PM me. I've got some new, used, and factory over-labeled disks for sale.

    There is a crack in everything. That's how the light gets in. -- Leonard Cohen
    ☞ Time flies like an arrow; fruit flies like a banana.

  7. #7

    Default

    Quote Originally Posted by Stone View Post
    I would configure the drive as drive A just to remove one more variable from the equation. Put a known good drive in as A: and after you're sure that works OK put in the questionable drive and see how it responds. It's always better, easier and simpler to remove all variable possible when testing something.
    I already tried it as A: and it didn't work. I then used a known good 3.5" as A: and the problematic 5.25" as B: so that I could boot from A: into DOS. I'm not going to boot from CF and see what Imagedisk comes up with.

    Ah, I tried cleaning the sensors as suggested and it didn't help either.
    The Geek In Me - my computer blog

  8. #8

    Default

    FD-55GFR needs three jumpers installed:
    * D1
    * FG
    * DC short with RY

    Edit: there seem to exist various variants of FD-55GFR, with different jumpers, I'm not sure if my settings are applicable for you, in case of doubt post a photo of your jumpers...
    Last edited by Xacalite; May 18th, 2017 at 09:26 AM.

  9. #9

    Default

    Quote Originally Posted by Half-Saint View Post
    I cleaned both, the rails and the heads.
    What did you clean the heads with? Nothing is as effective, safe and reliable as a cleaning disk and solvent.
    If you're looking for DS/DD or DS/HD 3" or 5" floppy disks, PM me. I've got some new, used, and factory over-labeled disks for sale.

    There is a crack in everything. That's how the light gets in. -- Leonard Cohen
    ☞ Time flies like an arrow; fruit flies like a banana.

  10. Default

    Unless you are absolutely certain that this computer will work with two floppy drives, test the drive as the A: drive. Having a BIOS option to set the floppy type for B: is not a guarantee that your floppy controller chip is actually wired up to run two floppy drives -- later clones tended to leave the wiring for the B: drive disconnected.

    And once you have it working as the A: drive, you should be able to move it to the other connector on the floppy cable and it will work as the B: drive (assuming your floppy cable has the expected twist).

    -ken

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