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  1. DK PCB Issue?

    I just read through your repair logs and was ready to PM you. Thanks for the feedback! Just got done playing a few games. As soon as I fired it up, the sprite issue appeared for several minutes. By the second game, everything was working great. I turned it off and will fire it back up again...
  2. DK PCB Issue?

    Note: When I mentioned "Level" in the previous message, I mean the L=01 text in the upper right of the screen.
  3. DK PCB Issue?

    My DK just started acting up the other night. The girders are switching between light and dark blue (in person it is very obvious but not so much in the video). However, the "Level" text in the upper right flickers on/off and that is very noticeable in my video. I installed this boardset in...
  4. Braze Double Donkey Kong

    Oh.......those pots. Yup, that cleared it right up. Lord help me, I'm just not that bright (Courtesy Homer Simpson) Thanks for the help!!!
  5. Braze Double Donkey Kong

    I messed with the horizontal/vertical pots. Unfortunately, didn't help at all. Any other ideas??
  6. Braze Double Donkey Kong

    I have a Braze Double Donkey Kong with some video issues (see link below). Any ideas where to start looking? Note: I capped the monitor thinking that would resolve the problem. No such luck. I am inclined to think it has something to do with DDK PCB because my unmolested Dk Jr PCB works...
  7. Robotron: Intermittent Sound

    I have a Robotron that works flawlessly most of the time. However, in recent weeks, the sound will disappear after 5-10 minutes of play. When this happens, a simple power cycle (unplug/plug back in) will resolve the issue. Sometimes the machine will run for a few minutes or hours before the...
  8. Help: Major Havoc PCB Identification

    I just watched this Todd Tuckey video. (start at 1:20) https://www.youtube.com/watch?v=gNf4r7qrFTc He explains that the bottom harness plug needs to be flipped for the Tempest control panel to work. That explains why my Tempest control panel wasn't working. I didn't have the plug flipped...
  9. Help: Major Havoc PCB Identification

    Here is a pic of the chips in row 2 (per the PM request). If anyone needs any other pics, just let me know.
  10. Help: Major Havoc PCB Identification

    I found some additional information (see link below). I am now convinced that my PCB is a dedicated Major Havoc that has been converted to play in a Tempest machine. That said, I am still looking for some help. 1) I have a 10.000 MHz crystal at Y1 and a 12.086 MHz crystal at Y2. Are these...
  11. Help: Major Havoc PCB Identification

    That would make sense if my Y1 was 12 and my Y2 was 10. However, mine are opposite. The solder side of the board suggests someone has done some repair work. Is it possible they swapped the chips??? Note: The first picture is of Y1 (left two pins) and the second picture is of Y2 (right two...
  12. Help: Major Havoc PCB Identification

    Added pics of the edge connector. I counted 12. So, it's a conversion? I am still confused. My Y1 is 12 and my Y2 is 10. How is that possible?
  13. Help: Major Havoc PCB Identification

    Sorry, just a few more pics.
  14. Help: Major Havoc PCB Identification

    Here are a few more pics. Also, I would really like to speed up the character movement. Character movement requires an excessive amount of rolling to move (note: reproduction roller). I tried hooking up the Tempest spinner but that yields no movement. Very odd..... Again, any ideas???
  15. Help: Major Havoc PCB Identification

    I have a Major Havoc in a Tempest cabinet. I always assumed it was a conversion board. However, after taking a closer look at the PCB, I am starting to think it is a dedicated. Please take a look and let me know. Thanks! A few observations: Y1 = FOX100 10.000 Y2 = 12.096 NDK .38 Quad Pokey...
  16. Board or Video Issues???

    Found the problem. My jamma adapter board didn't have a wire running from Pin 14 (video ground) to ground. Who was the jackwagon who forget to install that wire when building the Ikari to jamma adapter board???? Oh wait....that was me. :-) Life is good, off to play some Ikari Warriors!!!
  17. Board or Video Issues???

    Here is another pic.
  18. Board or Video Issues???

    I picked a few boards recently for my JAMMA cabinet. I had some power supply issues that were resolved by installing a new power supply. All my Jamma boards are working great except Ikari Warriors. It was working but now i have a sync issue???? Again, all the other JAMMA boards work fine. I...
  19. Major Havoc - Multiple issues

    Thanks for all the advice. Really appreciated. Well.....in an act of desperation, I decided to check out Major Havoc in MAME using a spinner knob. Guess what? It performs just like my actual Major Havoc hardware!!! I guess this is just how the controller works. If you do a half roll/spin...
  20. Major Havoc - Multiple issues

    bump. Just looking for some feedback. Thanks. :-)
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