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    Repair log: Batman: The Dark Knight (Stern, 2008)

    2008 Batman Repair log Stern

    ο»ΏRepair logs are quick summaries of workshop and on-site repairs. If your machine needs a service, πŸ“¬ Contact Us to discuss how we can help!

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    New shaker motor installed! An awesome addition to the game which really makes you feel those shots to the crane.


    Some of the early SAM system games were made with a shaker motor option available, but the cabinets were not always prepared for installation of the assembly at the factory. As a result, you may need to drill the mounting holes and install tee-nuts so you can bolt the shaker motor into place. Ensure proper alignment and fitment as this is not a mechanism that you want to shake loose!


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    Repair log: Johnny Mnemonic (Williams, 1995)

    1995 Johnny Mnemonic Repair log Williams

    ο»ΏRepair logs are quick summaries of workshop and on-site repairs. If your machine needs a service, πŸ“¬ Contact Us to discuss how we can help!

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    I've never met a Johnny that didn't have issues with the Cyberglove assembly. This one was no different. It's an awesome mechanism, but finnicky. This one was having issues with the motor that drives the hand forward and back. It would randomly lock on, sending the glove forwards or backwards until it crashed into the end of the worm drive, blowing a fuse.


    So, time for a full rebuild. Disassembled and cleaned. Gearboxes cleaned and lubed. Encoder boards serviced. Turns out, the issue was faulty optical switches on one of the encoder boards. They were oddball optos that were not the correct part, and there was some hackery on the board. Installed new optos, new connectors, new transistors, and we're good to go again!


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    Repair log: Stern Stars (1978) and Stern Dracula (1979)

    1978 Dracula Repair log Stars Stern

    ο»ΏRepair logs are quick summaries of workshop and on-site repairs. If your machine needs a service, πŸ“¬ Contact Us to discuss how we can help!

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    A couple of Stern MPU-100 boards came in for service. Both with similar corrosion damage which required significant abatement. Once the corrosion was dealt with, the boards were repopulated.


    A couple of small mods were done, too. Batteries and RAM were replaced with NVRAM modules from Tangles Pin Parts. A nice product from an Aussie supplier. One of the ROM chips was damaged on the Stars board, so I combined the two 2716 ROM images into a single 2764. Some modding of the board was required to accommodate the 2764 but it works well.


    Before and after photos of one of the boards below!