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Thread: 26 Pin Hard Disk Connector

  1. #1

    Default 26 Pin Hard Disk Connector

    Hi, I recently acquired an Epson PX-16, with it came a base unit in which there is a floppy drive and space for a hard drive.

    The connector that looks as though it once had a disk drive connected to it is a 26 pin female IDC connector.

    In the manual it states that the unit supports a 'type 3' HDD.

    Does anyone know what sort of drive I would need for this, there's no separate power connector so I'm assuming power is also supplied by the 26 pin connector.

    Thanks, Charlie

  2. #2

    Default

    Quote Originally Posted by Thx1138 View Post
    Hi, I recently acquired an Epson PX-16, with it came a base unit in which there is a floppy drive and space for a hard drive.

    The connector that looks as though it once had a disk drive connected to it is a 26 pin female IDC connector.

    In the manual it states that the unit supports a 'type 3' HDD.

    Does anyone know what sort of drive I would need for this, there's no separate power connector so I'm assuming power is also supplied by the 26 pin connector.

    Thanks, Charlie
    Almost certainly a proprietary plug for some special drive, however the drive mechanism could have been standard MFM/RLL or IDE. MFM/FLL and IDE have a lot of redundant grounds, so some manufacturers condensed those to fit smaller proprietary connectors. If you could find pinouts an adapter cable could probably be made. I made a custom 40pin to 50pin plus power adapter cable for a Macintosh Portable I was restoring, interface was standard SCSI, but apple chose to use custom plug. Though you could be completely out of luck and it could be a useless proprietary mechanism like the PS/2 Model 25&30, where the drives were unreliable and no longer available because of that.
    My Vintage computer/blog site
    Searching for a keyboard for a WYSEpc WY-1100.

  3. #3
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    Default

    I'm going to go out on a limb here and say that it's likely a connector for a second 3.5" floppy. See, for example this list of EPSON drives.

  4. #4

    Default

    Could surely be, but there are mentions of HDD support for the PX-16, so there's got to be some kind of HDD interface in there, or some kind of slot/interface to add one.
    My Vintage computer/blog site
    Searching for a keyboard for a WYSEpc WY-1100.

  5. #5
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    Default

    Quote Originally Posted by RWallmow View Post
    Could surely be, but there are mentions of HDD support for the PX-16, so there's got to be some kind of HDD interface in there, or some kind of slot/interface to add one.
    Does it have an external opening for a floppy drive?

    There were 26-pin floppies but there was also a 26-pin JVC HD interface used by various Japanese manufacturers; matter of fact I have one in one of my Toshibas.

    Here's some info:

    http://www.pd.com/gb15xx/messages/1489.html

  6. #6
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    Is it possible that the same connector is used for either a hard drive or a floppy that is mounted in the free bay? That seems to be the only way the PX-16 drive base could be field upgraded with the complex jumper settings defining the configuration.

  7. #7

    Default

    Thank you for all your replies, I'm pretty sure it's not a floppy connector purely because there's already a floppy drive in the unit and it uses a different connector. What I'll do is take a picture and put it up. I think MikeS might be on to something as this is a Japanese machine.

    Charlie

  8. #8

    Default

    Ok, here are some pics:-







    These show the connector I'm talking about which seems to come off of a daughter card. You can see the floppy connected to the board along with a spare floppy connector.

    Charlie

  9. #9

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    Also, anyone recognise this layout of this mini din?



    Charlie

  10. #10

    Default

    The last mini-din I think is the Microsoft Bus. The hard drive or whatever IDE looking connector I'm not sure about but so many devices had a proprietary converter between the standard drive and their device it's probably going to be easier finding another unit or drive from a unit to know for sure what would go there.
    Looking to acquire: IBM 5100, Altair 8800

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