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  1. #1
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    screen information gone screen go blank

    c3220 machine start up and warm up complete
    a while screen go blank no information on the screen
    why?

  2. #2
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    screen  information gone  screen go blank

    Brian8506's Avatar
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    Re: screen information gone screen go blank

    Is it just in sleep mode? Check sleep time under timer settings

  3. #3
    Service Manager 10,000+ Posts
    screen  information gone  screen go blank

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    Re: screen information gone screen go blank

    Quote Originally Posted by pc123321 View Post
    c3220 machine start up and warm up complete
    a while screen go blank no information on the screen
    why?
    -------------??
    is the POWER GREEN indicator ON

    other than posted Sleep check/

    First I would remove > clean ends & Re-seat the memory DIMMs


    Check the Main Controller PCB LED101 which is ON during normal operation. When you experience a blank LCD screen, inspect the Main Controller PCB LED101, if the LED is OFF, then replace the SRAM PCB (FG3-3669-000) which is mounted on the Sub Main Controller PCB.
    Check the connection between the Sub-Main Controller (J1303) and the Main Controller (J1209) to see if they are seated correctly.

    Ensure that the voltage between the neutral and ground poles is 1/2 a volt or less.


    Could also be a Power Distribution PCB issue
    **Knowledge is time consuming, exhausting and costly for a trained Tech.**

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