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  1. mjenison

    My Sega G80 PCBs Repair Thread

    And to complete the vector sound board trifecta... The Universal Universal Sound board tester! (yes, that was my cat meowing, not a new sound on the universal sound board). A few neat things I learned working on this... The boards are loaded with "code", which I understand to be mostly...
  2. mjenison

    My Sega G80 PCBs Repair Thread

    It wouldn't be too hard to add. I'm speculating that they may have removed it in favor of reporting the small bonus / large bonus sounds that occur at the end of the rounds. Fitting it back in, spacing it out, and leaving enough gap before Spock announces the next level might have been another...
  3. mjenison

    What do you do with your most temperamental games?

    My Zookeeper is my problem child. When it works, it's great, but it often displays graphics corruption and then completely messed up video (as if the video sync has gone out). Sometimes a reboot or memory reset will fix it. That's the worst part; I'll apply a "fix" (change out a device, reseat a...
  4. mjenison

    My Sega G80 PCBs Repair Thread

    Sega G80 Speech boards use a similar setup of port messages, yet each speech board seems to require slightly different messaging to prepare the speech board. After analyzing the port messages in MAME, I was able to put together a testing tool for speech boards as well. Here's a demo of testing...
  5. mjenison

    Tron behind the blacklight- the "aluminum foil" part

    I believe it's just mirrored cardstock. Wish I could remember where I bought it from. Check your local craft store or get some from online but make sure the dimensions are long enough.
  6. mjenison

    Discs Of Tron Multiplayer Project: Platform Combat

    The other PCB would have the sprites color reversed. I was thinking they'd both just have discs like the main player, since having those other options seems like cheating. However, that might get boring. The game can support two spinning chasers at a time, so maybe randomly spawn a spinner vs...
  7. mjenison

    Discs Of Tron Multiplayer Project: Platform Combat

    I've thought of this project for some time (head-to-head Discs of Tron). Even made up a "Discs of Sark" marquee for the other cabinet. I think the existing MCR hardware could support this, with a master/slave setup; one PCB to take all the inputs and maintain the state, the other PCB would have...
  8. mjenison

    SKETCHUP 3D WAREHOUSE PURGE!!

    I will create a version8 folder on my ftp site and you can upload them there. I'll send you the credentials once it's created.
  9. mjenison

    Does ChatGPT know what it's talking about?

    Unrelated to the specific topic of Sanyo monitors in this thread, I will say that Grok, in my experience, knows more about arcade games than chatgpt.
  10. mjenison

    Discs of tron scratch build

    Tell us more about this custom carpet...
  11. mjenison

    Mcr ribbon cables

    While the cabling looks the same, the connectors look different.
  12. mjenison

    Mario Bros intro screen…blooming issue?

    I will say I think it's the board set. I noticed that when running the board set through an OSSC the image brightens/dims during this sequence. While I don't seen any brightness/dimming here, seems something in the signal weakens/strengthens during this sequence, and just shows up as...
  13. mjenison

    Which games are better as a cocktail?

    A lot of these are considered "islands" and not cocktails. Eliminator does have a legit 2-player cocktail, but is not better because it uses Japanese buttons which aren't great. Space Duel, Warlords are better play wise.
  14. mjenison

    Aladdin's Castle Memo

    I think the fact he said "the resistors" was implying the resistors he was referring to. If not, he should have said "instead of piggy backing [different recommended resistors]...". Or, put the correct values on the drawing of the piggybacked resistors. There's no other reference to other...
  15. mjenison

    Aladdin's Castle Memo

    Working on some Sega stuff today, I came across an old memo from Aladdin's Castle for Space Fury / G08 monitor issues in my repair documentation. This one in particular: better scan here...
  16. mjenison

    Most Annoying Cabinet To Work On

    I remember pulling the monitor for a sit-down Missile Command was a horrible experience. I love the note: "However, if you are about 6 1/2 tall, you could probably remove the monitor without this stool."
  17. mjenison

    My Sega G80 PCBs Repair Thread

    First repair with the new sound board test setup. @jkoolpe sent me a few boards to work on, one being a Battlestar sound board that he built by himself, but couldn't figure out why one of the sounds was missing. Symptom: large explosion not working, all other sounds good (repro board)...
  18. mjenison

    FS Game: Tron - Central Iowa

    Friday before Labor Day bump!
  19. mjenison

    Transistor Replacement search

    What is it used for, or what is it found in?
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