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  1. KenLayton

    G07 left side caved in black.

    Has this chassis been completely re-capped?
  2. KenLayton

    Nintendo Power Supply Conversion Kit

    Mike's Arcade sells a Donkey Kong switching regulator power supply kit: https://www.mikesarcade.com/cgi-bin/store.pl?sku=PSK-PP-7B
  3. KenLayton

    first jukebox, is it any good?

    We had two NSM (I call them NFG) jukes on our route back in the day. They were nothing but trouble and we had almost daily service calls on them. The special cable between the mechanism and the control board would develop breaks inside the cable. Amplifiers were constantly failing. Sometimes the...
  4. KenLayton

    Gerber Experts - Request Coaching / Instruction Please

    I thought I had pictures of the sound board, but I guess I never took any of it. Our Mini Baseball machine is on location at the Olympia Pinball Museum here in town.
  5. KenLayton

    SOLVED K4900 Chassis Extreme Focus Problem

    Make sure the focus pin on the tube itself is not broken/mashed over to the side.
  6. KenLayton

    Godzilla Pinball by Stern

    I'm not thrilled with the theme, but a friend has already paid out money to buy one. It's on it's way to him.
  7. KenLayton

    Shoot the Bear

    Sometimes schematics can fail to mention whether a capacitor is non-polar or not, especially old schematics.
  8. KenLayton

    Ice air hockey versus Dynamo air hockey

    For reliability, the Dynamo is tops. Dynamo had bought out the original Brunswick air hockey designs years ago. Many operators use Dynamo air hockey games on their routes.
  9. KenLayton

    Arcarc Website Down?

    Arcarc seems to be working fine for me: https://arcarc.xmission.com/
  10. KenLayton

    Rock-ola Shuffleboard Scoreboard

    Looks to be similar to an American Shuffleboard score unit of the era. Perhaps the American Shuffleboard repair information/schematics may help? https://arcarc.xmission.com/PDF_Shuffler/American_Shuffleboard/
  11. KenLayton

    Bad ballast?

    My experience with electronic ballasts in arcade game usage is they fail frequently after about 3 months. The ones I had were typically shorted internally when they went bad. I replaced them with conventional magnetic ballasts and starters. No more troubles. :)
  12. KenLayton

    Atari Slider Test Switches

    If I recall correctly, the switch should be a double pole double throw (D.P.D.T. ) conventional size slide switch.
  13. KenLayton

    WTB Japanese slot stop reel board

    The picture is low resolution, but the cap looks blown.
  14. KenLayton

    Wurlitzer 547 amp transformer

    The 3100 has a pretty whimpy amplifier. Shouldn't be too hard to find a transformer to operate it. Have you checked with Victory Glass Company and Antique Electronic Supply?
  15. KenLayton

    Shoot the Bear

    That could have been the only wire they could get at the time the machine was manufactured. Remember, phototubes operate on about 90 volts DC so watch that you don't get zapped.
  16. KenLayton

    Wurlitzer 547 amp transformer

    It would help to know what model number the jukebox is that this amplifier goes to.
  17. KenLayton

    No Power to Coin slots

    In a standard JAMMA wired cabinet, the coin entry lights on the coin door are powered directly from the power supply, not the game board. The bulbs to use are determined by what voltage terminal on the power supply you want to run the bulbs on: 5 volts or 12 volts. There is a difference in the...
  18. KenLayton

    WTB Japanese slot stop reel board

    Probably diode D8 on the board is shorted.
  19. KenLayton

    WTB Japanese slot stop reel board

    You checked it for shorted diodes and shorted capacitors? The relays on it are "sealed" and it's very possible for one of them to have a set of contacts that are stuck closed.
  20. KenLayton

    PAC MAN CP LIGHTS Absent?

    Yup, somebody has rewired this cabinet with a Sega/Gremlin power transformer and switching regulator power supply. Whoever did it did not wire in any light sockets.
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