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Thread: Tandy VGM-390

  1. #1
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    468

    Default Tandy VGM-390

    Anyone have any info on this monitor? I picked one up on Ebay; it seems to be a VGA-compatible monitor but it has a CGA-style 9-pin connector on the back.

    Would I be lucky enough to have found a multi-sync monitor, VGA and CGA compatible?

  2. #2

    Cool

    Some early VGAs had a 9PIN connector.

    http://old.pinouts.ru/Video/VGA9_pinout.shtml

    It is a regular analog VGA monitor: https://computerarchive.org/files/co...back/06116.pdf

  3. #3

    Default

    ftp://mindcandydvd.com/pub/tvdog/tan...back/06093.pdf

    Odd it appears that’s full SVGA

    Always wondered why some manufacturers went with vga 9 pin

  4. #4
    Join Date
    Mar 2016
    Location
    Georgia, USA
    Posts
    468

    Default

    Glad it came with the special cable then; 9 pin on one end and 15 on the other.

  5. #5

    Default

    Very occasionally some monitors will sync down to rates not listed in the user manual , heck one old fixed frequency 20” Mitsubishi I had from 1986 had all the pot adjustments hacked into dials on the front bezel, using a breakout cable I could get MDA/EGA or VGA to work but even using a special tool CGa would always display wrapped with the LH & RH sides in the middle
    Still a cool screen but 43hz 800x600 was useless for me back in the day

    You would only get 8 colors and need another adapter but I’ve never blown anything up this way.

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