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  1. #1
    Senior Tech 250+ Posts
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    AR-M550 Dead touch screen

    Hi Guys,

    I tried replacing the touch screen. What I'm getting is a faint blue light coming from the screen. There is no image at all on the screen. Machine operates fine. (People are able to print to it.)

    I was just hoping someone could tell me what and where the board is that powers the touch screen.

    Thanks,

    Buddy


  2. #2
    Master Of The Obvious 10,000+ Posts
    AR-M550 Dead touch screen

    blackcat4866's Avatar
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    Re: AR-M550 Dead touch screen

    It could be as simple as a failed fluorescent backlight or inverter PWB. Can you select individual functions even though you can't see them? I would estimate 80% op panel PWB, 15% Controller PWB, 5% something else. =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  3. #3
    Junior Member
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    Re: AR-M550 Dead touch screen

    Try to slide the MFP PWB in and out a few times.


  4. #4
    Senior Tech 250+ Posts
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    Re: AR-M550 Dead touch screen

    Thanks Guys,

    I tried all of the above and replacing all the related boards - no luck. Did this on a Friday. Went back to it on Monday and it was working! Working that is until I put the back cover on. Turned out to be a shorting harness. What a PIA! Thanks again.


  5. #5
    Senior Tech 100+ Posts
    AR-M550 Dead touch screen

    Ratchet2501's Avatar
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    Re: AR-M550 Dead touch screen

    Quote Originally Posted by Buddy View Post
    Thanks Guys,

    I tried all of the above and replacing all the related boards - no luck. Did this on a Friday. Went back to it on Monday and it was working! Working that is until I put the back cover on. Turned out to be a shorting harness. What a PIA! Thanks again.

    That annoying line between something amazing or something stupid, real stresser sometimes


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