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  1. Namco Rockin' Bowl-o-Rama custom animations and mod tool.

    Unfortunately I kinda lost interest in the project due to lack of real hardware to test on, so I’m not sure if what I’m doing will actually work. My test environment is just a real IO card but the game running on modern Linux. Right now the animation conversion tool is written in JavaScript...
  2. Battery Board Repair on a Old Coney Island Machine

    Hmm, are you running it on a bench or inside the machine? Check with the scope all data and address pins on the chips, make sure everything is getting a good signal.
  3. Battery Board Repair on a Old Coney Island Machine

    Did you try shorting pins 25 and 26 together to force the cpu out of reset? While shorted you may get the flashes telling you that the board is working but there is something wrong with the reset circuit. Also were you able to distinguish between the two roms that looked very similar? Perhaps...
  4. Battery Board Repair on a Old Coney Island Machine

    One other thing you can try while waiting for those roms to arrive is short out pins 25 and 26 on the CPU to see if you get any life, this will force the reset circuit to go high and allow the cpu to attempt to boot. See the flash codes section here for more info on how the watchdog circuit...
  5. Battery Board Repair on a Old Coney Island Machine

    Good luck! What's your plan for replacing the battery? Seems like everything has its pros and cons, I'm debating trying something new and buying a small li ion charge controller/ protection board and use a 18650 battery, Ofcourse isolating it using a diode like all other battery solutions. If...
  6. Battery Board Repair on a Old Coney Island Machine

    For me I had zero light flashes, sound board would do a frequency sweep sound and a constant buzz. Bypass caps are all the big green ones. They are trash just replace them all with 103 ceramics. Check the 5v at the ceramic capacitor just after the battery charge circuit. In my case it was...
  7. Battery Board Repair on a Old Coney Island Machine

    Hah, funny I just finished repairing my old Coney Island board yesterday. let me know if you have any other issues, I’m putting together my repair log now. I bought a whole bunch of chips I didn’t need when the root issue was the bypass caps.
  8. Skee-Ball Model S - help needed (SOLVED!)

    Excellent news!
  9. Skee-Ball Model S - help needed (SOLVED!)

    14v is normal, looking at the schematic the transformer is feeding both the 12v and 5v regulators.
  10. Skee-Ball Model S - help needed (SOLVED!)

    Yes the regulator and resistor getting hot is normal, that's just them burning off the excess power as heat to regulate it to 5v. once you reinstall bypass caps and chips I would suspect the voltage to drop a bit more on the resistor and for that to get hotter. Note I would not connect this to...
  11. Skee-Ball Model S - help needed (SOLVED!)

    bingo, with it removed are you getting 5V? It should be safe to power up without it. Looks like it’s just there to protect any potential over voltage from a back feed.
  12. Skee-Ball Model S - help needed (SOLVED!)

    If you have a spare 7805 it wouldn't hurt to try and replace it, however it's to be expected that both of those components get really hot in the state that it's in right now. The way a 7805 works (broadly) is that it converts any voltage above 5v into heat, so say you're drawing 1A at 5v and...
  13. Skee-Ball Model S - help needed (SOLVED!)

    In that case there isn’t much left, I’ll review the schematic tonight but I would try and just leave it on, see what chip or part gets really hot.
  14. Hello from Massachusetts

    Hello from Worcester!
  15. Skee-Ball Model S - help needed (SOLVED!)

    +1 on the bypass caps, pull them all and see if the voltage comes up, if it does replace them all. I have a gameplan mpu-2 that I just replaced far too many chips before realizing the problem was with the caps pulling the voltage down on the ram chips causing the entire data bus to go all wonky.
  16. What vehicle do you transport games with?

    I got this little 4x6 caravan trailer that is a mix of aluminum frame and a galvanized axle/tongue, I wish it was 8ft long but I love how light it is, only 240lbs empty you can tow it behind any car and it will hardly feel it.
  17. FB - 3rd Party Red Computer Space - Massachusetts

    Yup that was filmed out on the vineyard iirc.. Did anyone locate that computer space or should I head out there myself and start to do some investigating? 👀
  18. FB - 3rd Party Red Computer Space - Massachusetts

    Funny you mention that I open up Facebook and there is one in PA as well for $2k. https://www.facebook.com/share/14H18HyL2tF/?mibextid=wwXIfr
  19. FB - 3rd Party Red Computer Space - Massachusetts

    For the life of me I can not find the screenshot of the listing, I did find the computer space. Also I should correct myself, the name of the game was space ball. https://www.arcade-museum.com/Videogame/computer-space-ball
  20. FB - 3rd Party Red Computer Space - Massachusetts

    I was watching a 2 player one in NJ on fb marketplace sit at $6000 for months about a year ago I don’t remember how much it actually sold for but I remember a few price drops. And a nutting associates pong game in a similar case to computer space sit at $900 for a while. As we speak there are 4...
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