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  1. MajorHavoc

    Arcade Party - Southern MD - Saturday Oct 4, 2025

    Wow! Has it been a month already. Thanks so much @64B1T !
  2. MajorHavoc

    Untested Meteors PCB

    An article written in 2022 (see link at bottom) seems to point to Venture Line or some other company being the originator of the hardware and software. I’ll quote the relevant paragraphs here: Holniker had procured his PCB (printed circuit board—the “guts”/”brain” of any arcade cabinet—which...
  3. MajorHavoc

    Untested Meteors PCB

  4. MajorHavoc

    Gottlieb boards for video games

    I have 5 main boards and 2 audio boards Mains: Qbert, Krull, and Curveball. All are working Audio: Qbert with working SC01a, but the boards are no longer working (I was able to test the SC01as before my working audio board failed) Thanks!
  5. MajorHavoc

    MD/DC/VA - Crabtowne meetup 8/16/2025 (Sat)

    I mixed up Crabtowne and 64b1t’s invite.
  6. MajorHavoc

    MD/DC/VA - Crabtowne meetup 8/16/2025 (Sat)

    A fun time at CrabTowne. From left to right: @tstone, Sam, @64B1T, @MajorHavoc, @mcdefjef Hope to see @vintagegamer, @CharlieG, and others at a future gathering.
  7. MajorHavoc

    MD/DC/VA - Crabtowne meetup 8/16/2025 (Sat)

    I hope everything is ok with your wife @vintagegamer.
  8. MajorHavoc

    MD/DC/VA - Crabtowne meetup 8/16/2025 (Sat)

    I’m planning to be there
  9. MajorHavoc

    GORF cabinet is stuck on test screen, replaced power supply

    Still learning new things. I just thought there were a lot of Gorfs with a common failure of washed out red in the monitor.
  10. MajorHavoc

    What fixed your game today / general repair log

    Game PCB: Major Havoc Symptoms: flaking out and resetting (eventually in a constant reset loop of the startup explosion sound) @64B1T stopped by to check out my MH in a Space Duel cabinet and after years of working mostly reliably, it decided that moment was the time to misbehave! We pulled the...
  11. MajorHavoc

    Mappy Broken Resistor please help verify

    There are capacitors that look like resistors. https://electronics.stackexchange.com/questions/202581/what-kind-of-capacitor-is-this-how-to-read-its-value-code#:~:text=The%20stripes%20on%20the%20capacitor,the%20final%20value%20in%20pF.
  12. MajorHavoc

    Super Punchout (punchout) PCB Help

    I can’t figure out a pattern in the picture. Are some of the slices transposed horizontally?
  13. MajorHavoc

    Various Free Play hacks

    I like Mark’s idea. But what about putting them into HBMAME? Could be easier and get broader dissemination.
  14. MajorHavoc

    Joust cocktail table ??

    I owned a cocktail ~1994-2004. When I played it a lot, my neck would hurt so I started thinking of ways to tilt the game screen up until I finally realized I just needed an upright instead.
  15. MajorHavoc

    USB to JAMMA adapter: am I missing something?

    I picked up one of these USB to JAMA adapters on AliExpress. Unfortunately, it only seems to work occasionally. The rest of the time it behaves as if the last joy/button press is being held. When I plug in my USB controller, the LED goes from dim to bright. Is there anything I am doing wrong or...
  16. MajorHavoc

    6100 with a little collapse

    Thanks to @64B1T, my monitor now displays across the full X axis! The problem was the -X frame transistor. It passed on the tester but after eliminating the deflection board and verifying all voltages were good, we replaced it and problem solved.
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