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(Topic ID: 221556)

LOTR DMD problem

By fly

5 years ago


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    #1 5 years ago
    OP
     
    FLY

    fly

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    11y 35,900 324 13

    Today I turned on the pinball after a longer break and the display works badly, like in the picture.
    I have checked the cables, they are good.
    What could be the reason ??

    20180720_183142 (resized).jpg20180720_183142 (resized).jpg
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    #2 5 years ago
     
    LER

    Lermods

    Lermods Pinball Co.

    11y 201K 10,855 58

    Corrupted display rom, try reseating it. Also, reseat all the ribbon cables.

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    #3 5 years ago
    OP
     
    FLY

    fly

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    11y 35,900 324 13

    still the same :/

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    #4 5 years ago
     
    LER

    Lermods

    Lermods Pinball Co.

    11y 201K 10,855 58

    OP
    Quoted from fly:

    still the same :/

    Are you sure all the pins on all the cables are straight and not bent and everything is aligned? Does the game play?

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    #5 5 years ago
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    FLY

    fly

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    11y 35,900 324 13

    yes, the game normally works, only there is a problem with the display.

    the second strange thing, I'm programming a new rom and there is nothing on the display, I put the old one and display it with an error (as in the picture)

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    #6 5 years ago
     
    BTF

    PinballManiac40

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    14y 234K 17,627 104

    Measure the voltages at the DMD power cable, -112v, -100v, 12v, 5v, and 62v.

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    #7 5 years ago
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    FLY

    fly

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    11y 35,900 324 13

    there is no 12V voltage (BLU)

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    #8 5 years ago
     
    BTF

    PinballManiac40

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    Ok. that is normal for Whitestar then. Can you post the voltages you measured?

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    #9 5 years ago
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    FLY

    fly

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    11y 35,900 324 13

    -113,5V, -102,5V, ... 5,02V, 73,2V.

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    #10 5 years ago
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    FLY

    fly

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    11y 35,900 324 13

    any ideas?

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    #11 5 years ago
     
    BTF

    PinballManiac40

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    The 73v is a bit higher than I had seen before, bit it still may be ok. Maybe try your DMD out of your Demo Man in LOTR. You should be able to make the 2 connections without physically taking the old DMD out of LOTR to test, just you need to hold the DMD by the edges to prevent shocking yourself.

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    #12 5 years ago
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    FLY

    fly

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    11y 35,900 324 13

    so I can connect Williams's display to check?

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    #13 5 years ago
     
    BTF

    PinballManiac40

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    14y 234K 17,627 104

    Yes. Same type of orange plasma DMD, even if it is a different brand/manufacturer.

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    #14 5 years ago
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    FLY

    fly

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    11y 35,900 324 13

    everything is clear, the display is damaged.
    Thank you very much for the tips.

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    #15 5 years ago
     
    BTF

    PinballManiac40

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    No problem.

    Good time to uprgade to a ColorDMD, if you like that sort of thing like I do. Lots of good color animations in LOTR.
    http://shop.colordmd.com/colordmd-replacement-display-for-lord-of-the-rings-pinball-machine/

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    #16 5 years ago
    OP
     
    FLY

    fly

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    11y 35,900 324 13

    Quoted from PinballManiac40:

    No problem.
    Good time to uprgade to a ColorDMD, if you like that sort of thing like I do. Lots of good color animations in LOTR.
    http://shop.colordmd.com/colordmd-replacement-display-for-lord-of-the-rings-pinball-machine/

    I will have to think about it, for now I will install a spare display from williams.
    Thank you

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    #17 5 years ago
     
    BTF

    PinballManiac40

    Pinside+ Frequent

    14y 234K 17,627 104

    Glad you have a spare DMD.

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