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Thread: MVS 4 - Vertical line problem

  1. #1
    Timid Neo Newbie
    Solkan's Avatar
    Join Date
    May 2013


    Question MVS 4 - Vertical line problem

    Dear specialists

    I'm trying to repair a 4 slot MVS with a little graphical glitch.
    Vertical lines appear on certain graphical zones like you can see on the pictures.
    The problem arise on all the 4 slots and with all the MVS. My other MVS 4 works perfectly on this setup.

    This thread will be a repair log (as I advance into the repair) and a question place as well (since it will me my first slot repair).

    So, first step : open the slot and clean everything.
    I will search for the battery and its potential leaks.
    Attached Images Attached Images
    Last edited by Solkan; 02-14-2018 at 09:14 AM.

  2. #2
    Host for Orochi
    daskrabs's Avatar
    Join Date
    Aug 2010
    Phatal Philly

    Take a look here:

    Possibly look for broken traces along the higher address lines (> A5) for the C ROMs.
    Sony PVM Club, Blast City Club, Egret II Club, Neo Candy Club
    WTB: Neo Geo MVS-U4 or MVS-U4/29

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