Results 1 to 4 of 4

Thread: Makvision Monitor question Neo 4 slot

  1. #1
    Tung's Hair Stylist
    Biohazard53's Avatar
    Join Date
    Dec 2007
    Location
    Rochester, NY

    Posts
    514

    Makvision Monitor question Neo 4 slot

    Hey Guys, I recently picked up a 4 slot that had a WG K7000 that needed some work I sent that off to be repaired and decided to throw my Makvision 3M25 into the cab tempoarily.

    The Makvision uses a VGA connector plug so I purchased an adapter to convert the pinout from VGA to CGA. i'm having some V-HOLD issues my guess it's due to the V sync on the VGA plug? does the Neo only need H sync? The picture comes in clear and it does a slow crawl I can get it to settle down adjusting the V-HOLD pot but it will start scrolling again. I'm pretty new to this stuff and couldnt find too much info on the Makvision being hooked up to an actual cab and not a MAME machine. I did find a post about a member who jumped the ground to the H sync on the RGB side but that just kills the picture for me.

    Thanks!
    Last edited by Biohazard53; 04-20-2018 at 10:27 AM.

  2. #2
    NEST Puppet
    Hine62's Avatar
    Join Date
    Jul 2005
    Location
    New York

    Posts
    180
    If you are wiring directly into vga with no conversion board, you will have issues. The mvs jamma connection only says sync not V or H sync There are a few converters out there to use. Do a search of the form for some favorites. By the time you search and buy one you will hopefully have you monitor back. This is what I was using on my super gun until I bought a 2 slot cab. After I capped and fixed some other problems on the monitor chassis I couldn't be happier.

    I was going to go with an LCD, but the converter board was a big draw back to getting the look of a good monitor.

  3. #3
    Tung's Hair Stylist
    Biohazard53's Avatar
    Join Date
    Dec 2007
    Location
    Rochester, NY

    Posts
    514
    Hey Hines62 thanks for your answer. i'll look into that. I received the repaired chassis back with new caps and flyback and the picture is still pretty bad I think my Tube is going. so I may permanently put the Makvision in my cab.

  4. #4
    Tung's Hair Stylist
    Biohazard53's Avatar
    Join Date
    Dec 2007
    Location
    Rochester, NY

    Posts
    514
    just an update on this,

    I purchased a a CGA to VGA adapter similar to what Hine62 posted I was able to get a "non scrolling" image but it seems like the CGA board really only likes working in 800X600 resolution and my Makvision doesnt support that so i'm getting a little interference on the top of the screen. i'll post a video of what i'm seeing. it's not game breaking by any means i'm able to enjoy the cab as is but it' more of an annoyance than anything.
    Last edited by Biohazard53; 06-01-2018 at 07:50 AM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •