Results 1 to 3 of 3

Thread: Problem with my MV4

  1. #1
    Kuroko's Training Dummy
    dkarDaGobert's Avatar
    Join Date
    Feb 2013
    Location
    Germany

    Posts
    70

    Problem with my MV4

    Hey,
    havent posted here for a while..
    i got some serious problems with my neo geo mvs 4 slot mobo..

    2 weeks ago i plugged my DIY consolized mvs, which worked flawlessly since i made it, back onto my OSSC and wanted to play some oldschool games with a friend.

    so it worked but i realised a lot of background noise on both channels.
    so since the mainboard didnt get any new caps i thought it would be a good idea to change em.
    So i bought a full kit and started to replace them today at work (im working as an electronic engineer).
    so i swapped em all and tried it out when i arrived at home.

    so now, the problem hasnt gone, theres still lots of background noise, BUT
    now it will just show the crosshatch without a cart inside.
    if i put a cart into any slot, it will boot the unibios 4.0 where i can check each slot working perfectly (no checksum errors), but doesnt do anything else...

    without game crosshatch or with a game just unibios screen. the screen turns black after that and doesnt boot.. - both in unibios screen or crosshatch there are no grafical issues.

    do you have any ideas what could be the problem?
    the battery got replaced years ago and i just put in a new battery.

    also the +12 and +5V are stable.

    since the schematics and pictures on jammanationx are offline i could also need a circuit diagram.

    sorry for my bad english
    Last edited by dkarDaGobert; 10-23-2020 at 12:51 PM.
    NeoGeo CMVS MV4F /w modded ArcadeStick + newstyle Stick
    Amiga 500 rev.7 incl. Pyramid Eureka 4MB FastRam + Indivision ECS; Minimig 4MB incl. ARM.
    PAL SNES, RGB-mod. N64, <3 Framemeister <3, WiiU

  2. #2
    Edo Express Delivery Guy
    ack's Avatar
    Join Date
    Apr 2009
    Location
    Seattle, WA

    Posts
    345
    It sounds like you have hard dip 8 in the on position, which is pause.

  3. #3
    Kuroko's Training Dummy
    dkarDaGobert's Avatar
    Join Date
    Feb 2013
    Location
    Germany

    Posts
    70
    Quote Originally Posted by ack View Post
    It sounds like you have hard dip 8 in the on position, which is pause.
    ...
    thanks so much omg
    why the f... is the buttom side = "ON" on that switch... shouldve read the FAQ
    so its working again - only the audio issue is still there..
    NeoGeo CMVS MV4F /w modded ArcadeStick + newstyle Stick
    Amiga 500 rev.7 incl. Pyramid Eureka 4MB FastRam + Indivision ECS; Minimig 4MB incl. ARM.
    PAL SNES, RGB-mod. N64, <3 Framemeister <3, WiiU

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
  •