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(Topic ID: 282102)

Jack in the Box score motor spinning too fast....?

By pinball_ed

3 years ago


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    #6 3 years ago
     
    AXE

    YeOldPinPlayer

    Inactive member

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    8y 111K 6,454 4 12

    OP
    Quoted from pinball_ed:

    As for speed of score motor and such, compared to my Jumping Jack and other Gottlieb ems I have when they reset, the JITB spins what seems twice as fast.

    Quoted from TimMe:

    the most likely explanation for a fast running motor is that you have a re-imported game with a motor geared for 50 Hz operation. When you run it at 60 Hz, it turns faster.

    60 Hz is only 20% faster than 50 Hz. If your 26 rpm is correct, running a 50 Hz motor at 60 Hz is 31.2 rpm.

    If we assume the OP is correct and the motor is really running twice as fast is there any failure or misconfiguration that could cause it?

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    #23 3 years ago
     
    AXE

    YeOldPinPlayer

    Inactive member

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    8y 111K 6,454 4 12

    Quoted from TimMe:

    part number (B-7986). If anyone else has info on this transformer, please post it.

    This post references the transformer in a Hot Shot https://pinside.com/pinball/forum/topic/gottlieb-hot-shot-transformer-from-230v-to-115v#post-4420102

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