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I'm stuck. Need help with AFM target bank

Discussion in 'Pinball Tech Support' started by atariaction, Jan 5, 2018.

  1. atariaction

    atariaction Well-Known Member

    Dec 1, 2012
    Likes Received:
    London, ON
    Ill try to summarize:

    During a game the 3 bank got stuck half way down

    Put in motor test and tried to operate motor with menu buttons and flipper buttons.

    The motor did not move in that test but a puff of smoke appeared from under the playfield

    I removed, cleaned, regreased the motor and tested it and it was working just fine

    I grounded the transistor (Q29) and the motor moved up and down but hitting the 3 targets in gameplay does not make the bank go down

    When I turn on the machine the bank goes down and up to find home

    The "disable motor bank" in settings is set to "no".

    The up and down limit switches on the motor test fine in switch test.

    I reversed the CPU to Driver ribbon cable and firmly reseated the ASIC chip and no improvement.

    Still not working and still no idea where the smoke came from.

    WTF? Any ideas?

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