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  1. #1
    Star Lounger
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    floppy disk drive pinout

    I know I'm probably the last guy on earth using a floppy but my wife insists on using one to back up her accounting. I just got a new computer for her that, of course, doesn't have a floppy. I could use a USB external floppy but she likes the internal one she had. I do have the old floppy drive but I've disconnected the cable so I don't know which pin is #1. It's a Panasonic JU-257A023P andis so old it was made in Japan. I can't find any indicator for the #1 pin and I can't find anything on the Internet including Panasonic's webpage. Anyone able to help.

    Thanks.

    Bruce

  2. #2
    Uranium Lounger
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    Re: floppy disk drive pinout

    Does this help ???
    <IMG SRC=http://www.wopr.com/w3tuserpics/DocWatson_sig.gif>

  3. #3
    Plutonium Lounger
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    Re: floppy disk drive pinout

    I don't know the technical answer to your question and hopefully someone else will. But in case you want to try trial and error, I thought I'd tell you about an accident on my part, quite a number of years ago. I accidentally connected a floppy drive with the cable reversed and my immediate clue was that the floppy drive activity light came on and stayed on, so I knew I had done something wrong. Evidently I didn't damage anything because as soon as I reversed the cable, the drive worked as it should have. I don't know if I was lucky or whether you should try it or not...

    Edited with a smile on my face, to add: I have to smile as I read Doc's link and saw this:
    <hr>Many 3.5" floppy drives today are not keyed to prevent upside down connection of the floppy drive cable. This means that it is possible to connect the cable upside-down, and then of course the drive will not work. In most cases this will not cause permanent damage. If when you boot up the PC the floppy drive activity LED comes on and stays on, this is a dead giveaway that you have done this. Reverse the connector. <hr>

  4. #4
    Uranium Lounger viking33's Avatar
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    Re: floppy disk drive pinout

    Does your new system SUPPORT a floppy drive, with a floppy input connector on the motherboard?

    A LOT of the newer ones do not.
    BOB
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  5. #5
    Star Lounger
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    Re: floppy disk drive pinout

    Thanks to everybody who replied. There was a floppy controller on the motherboard. I did go with the trial-and-error method and, of course, the first time it didn't work but as one poster menitoned, the light came on so I knew it was incorrect. Reversing it set everything up fine.

    Bruce

  6. #6
    Uranium Lounger
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    Re: floppy disk drive pinout

    Glad it worked out. <img src=/S/smile.gif border=0 alt=smile width=15 height=15>
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  7. #7
    Plutonium Lounger
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    Re: floppy disk drive pinout

    I have noticed recently that floppy media seems to be of much lower quality than it used to be. I don't know if this is because the few companies still making floppies cut corners to increase profits or because people don't look after them very well, but I come across lots of defective floppy disks.

    Please advise your wife that this is a very poor choice of format for backups, a rewritable CD would be much safer.

    StuartR

  8. #8
    Plutonium Lounger
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    Re: floppy disk drive pinout

    Also, floppy disks don't last very long. I recently wanted to retrieve a file from a floppy disk that was written some 5 years ago. It turned out to be unreadable; I then tested some other diskettes from the same time, about 1 in 3 was defective!

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