Hp L1925 lcd monitor black screen

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  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #41
    Re: Hp L1925 lcd monitor black screen

    Once we get the P/N of those 8-pin MOSFET, then we can tell you where to check the voltages, any P/N for that PWM IC? Is it really OZ960 as shown in the diagram that selldoor posted?
    By the way, that blue wire, it looks like it is connected to pin 8 of the IC, PIN1 of the IC is on the top right with indentation at the corner of the IC.
    Per app notes of the IC, it should be hooked up to PIN 17 through a resistor which determine the running frequency of the circuits.
    The other end of the cable is hooked up to the ground pin of the white connector, if that is the case, the Oscillator will not be running.
    This is all based on the Diagram as posted.
    Last edited by budm; 06-07-2012, 02:02 PM.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • selldoor
      Slow Learner
      • Dec 2010
      • 7870

      #42
      Re: Hp L1925 lcd monitor black screen

      It looks like an OZ960G to me
      Attached Files
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

      Comment

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