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  1. Arcadenut

    Really weird DK Jr behavior on the Chain Level

    If you've seen this before, let me know... I have a suspicion as to what it is and when I find out the cause I'll post here. The board plays perfectly fine in a different cabinet...
  2. Arcadenut

    New bench power supply

    Might be able to handle 1 Pole Position PCB.
  3. Arcadenut

    High Voltage on K7000? (19"), what should it be?

    I just fixed a K7000 and the B+ is at 123V, but the HV is at 25K. I'm lead to believe that it should be 21K... Is 25K ok, or should I figure out why it's that high?
  4. Arcadenut

    Zapcon 2024 is on!

    We're excited that Zapcon will be back in 2024! March 9th, and 10th. Contact either myself, @BigDogs, @toledoflyer if you would like to help with the show!
  5. Arcadenut

    Necked 6100 - What options are there?

    A friend picked up a 6100 and it's been necked. I know that it normally has a 100 degree tube and those are pretty much impossible to find. Do the repro boards support 90 degree tubes? Has anyone successfully used a 90 degree tube with the old parts (I know the Yoke has to be rewound). I am...
  6. Arcadenut

    Missile Command, it's a mess....

    I picked up 4 Missile Command boards and this is a log of the first one (which is probably the 2nd best of the 4). Who ever worked on this one, probably shouldn't work on any more in the future... I'll post full pictures of the board later, but here is just an example of the fun I am going to...
  7. Arcadenut

    FS Parts: WTT: 2764, 27256, 27512 for 2716

    I have a ton (several hundred of each) of 2764, 27256 and 27512 but down to my last few 2716's. I would like to trade some 2764, 27256, 27512's, or a combination for some 2716's. These are all PULLS. Some have stickers on them some don't. You would probably have to erase them. Looking for...
  8. Arcadenut

    Missile Command: Won't boot, Garbage on screen

    Started working on a Missile Command (Rev 4). The game won't boot and has a little bit of garbage on the screen. Had the multi kit in it and flashes between 2 or 3 colors (Yellow, Magenta, and sometimes White). I pulled the kit and burned a new set of EPROMS (2716) since the board didn't...
  9. Arcadenut

    WTB Blueprint Marquee, Bezel, CPO

    Title says it all.
  10. Arcadenut

    Great Plains Electronics closing

    I didn't see a post on here yet, but I did see his post on PinSide. If I missed it here, I apologize. https://pinside.com/pinball/forum/topic/a-message-from-great-plains-electronics Ed, sorry for your loss and I understand your wanting to close. I know I'll miss GPE as it has been a...
  11. Arcadenut

    Help me Understand what my scope is telling me....

    I'm working on a Missile Command PCB. FPGA CatBox says RAM 7 (8) is "Bad". I swap it with it's neighbor and get the same results. Pretty much rules out a bad 4116. So I hook the scope up to it on Pins 14, 2 and 3. 14 is the Data, 2 is D, and 3 is /WR. I set the scope up to trigger on...
  12. Arcadenut

    Bench Upgraded

    New tools were added and I needed more space and wanted to get a little more organized... Before: After:
  13. Arcadenut

    Toaplan/ROMSTAR Sky Shark TP-007, Black Screen

    Working on a Sky Shark that only shows a black screen. I picked up a few of the Repro GX-xx Chips from @caius and tried replacing C-01 and no change. Here is the board: The board draws a bit of power, not sure if it's normal or not, but considering the amount of stuff on the board I would...
  14. Arcadenut

    Pinball Hall of Fame in Vegas in the News

    and not in a good way unfortunately...
  15. Arcadenut

    FIXED: Asteroids Lightning Effect

    Video here: Current hypothesis is that maybe one of the Latches is funky (J7, K7) or something after that. Appears to only happen in the X direction. I'll start digging into it tomorrow.
  16. Arcadenut

    FIXED: Asteroids, Missing Thrust sound

    Ok, working on an Asteroids (Rev2) board. All sounds are present except for the ship Thrust Sound. Here is what I know so far.. N5 is good as I swapped it. I would expect Pin 3 on N5 to be the Opposite of what ever Pin 1 is (Pin 1 and 2 are tied together). However, they are both always high...
  17. Arcadenut

    Asteroids, why does this happen?

    So I'm trying to track down an issue where the Thrust sound isn't working and in the process, I removed N5 completely from the board and I saw this strange behavior... The Ship and the Extra Lives Ships were scaled way up from what they normally are. Why would N5 affect the scaling of the...
  18. Arcadenut

    A quick PSA for the new guys who are installing a Switching Power Supply in your game.

    A quick PSA for the new guys who are installing a Switching Power Supply in your game. Please do not connect it to the Monitor Side of the power. Connect to the Game Harness Side of the power going to the Monitor. It would probably be better to tap into the power off the Isolation...
  19. Arcadenut

    Can you spot the bad component?

    See if you can spot it.
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