Dell E153FPb flashes on twice then black screen

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  • smd
    Member
    • Jul 2011
    • 12

    #1

    Dell E153FPb flashes on twice then black screen

    I have a Dell E153FPb screen that I bought to resell. Once I switch it on it powers on for about 2 seconds but with smooth horizontal lines crossing the screen then goes black. after about a second it comes on again with the Dell RGB screen on the screen but still with the same lines crossing the screen.
    I took it apart and tested the LCD panel with another monitor of the same make and the LCD panel is fine. I now think that ift is something to do with the circuit part of the monitor.
    I used a multimeter to test the output voltage from the power supply side to the logic/Display circuit and it reads 3.38V. Is this the correct voltage I should get?
    Anyone with ideas on what could be the problem with this monitor? I have posted some photos.
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  • PlainBill
    Badcaps Legend
    • Feb 2009
    • 7034
    • USA

    #2
    Re: Dell E153FPb flashes on twice then black screen

    Originally posted by smd
    I have a Dell E153FPb screen that I bought to resell. Once I switch it on it powers on for about 2 seconds but with smooth horizontal lines crossing the screen then goes black. after about a second it comes on again with the Dell RGB screen on the screen but still with the same lines crossing the screen.
    I took it apart and tested the LCD panel with another monitor of the same make and the LCD panel is fine. I now think that ift is something to do with the circuit part of the monitor.
    I used a multimeter to test the output voltage from the power supply side to the logic/Display circuit and it reads 3.38V. Is this the correct voltage I should get?
    Anyone with ideas on what could be the problem with this monitor? I have posted some photos.
    I don't know which voltage you measured. If you measured the 5V rail, it is seriously low. If you measured a control voltage from the signal card to the inverter, it's OK.

    These monitors have a history of cracks around the transformers causing shorted transistors; that could be what is happening here. Or it could be a problem with the signal card. Did you check which card is defective by substituting known good cards?

    PlainBill
    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

    Comment

    • smd
      Member
      • Jul 2011
      • 12

      #3
      Re: Dell E153FPb flashes on twice then black screen

      Thanks plainbill, I am trying to find a good signal card to test it

      Comment

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