Westinghouse L2210NW Power and ?

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  • SgtRock
    Senior Member
    • Feb 2012
    • 175
    • USA

    #1

    Westinghouse L2210NW Power and ?

    Greetings Badcappers:

    --Just inherited a Westinghouse L2210NW Monitor. I have not opened it up yet, as I have to many others in pieces at the moment. But, it shows the typical power on problems caused by the original Samxon caps. I finally managed to get it to come on, but the picture is all vertical stripes (see picture). Could this be caused by a bad power supply? If so, I will crack her open, take pictures, and order good Digikey Panasonic Caps, immediately.

    "In the heat of battle, my father wove a tapestry of obscenity that as far as we know, is still hanging in space over Lake Michigan."
    Ralphie Parker

    Best Regards
    Clear Ether
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Westinghouse L2210NW Power and ?

    I have seen this in TV due to bad caps in the power supply, but also seen them due to bad T-CON board.
    http://s807.photobucket.com/albums/y...t=DSC02476.jpg
    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

    • SgtRock
      Senior Member
      • Feb 2012
      • 175
      • USA

      #3
      Re: Westinghouse L2210NW Power and ?

      Dear Budm:

      --Rodger that. I guess I will have to crack her open and see if she needs anything besides caps. It may be a while, but I will report back. Thanks again.

      "Happy for you to desoldering, please."
      Wun Hung Lo 1948 -

      Best Regards
      Clear Ether

      Comment

      • SgtRock
        Senior Member
        • Feb 2012
        • 175
        • USA

        #4
        Re: Westinghouse L2210NW Power and ?

        Greetings EEVBees:

        --Well I opened her up and the P.S. board shows obvious signs of overheating (see picture). The Label for this unit shows May 2008, which I assume is a refurbish date. The 2 Watt 100 Ohm Resistor measures 296 Ohms, and surprisingly only one of the Capacitors (the domed one) measured bad. Of course I was not testing at the actual voltages encountered in the P.S. Below is a list of the results.

        Westinghouse L2210NW P.S. Bad Parts List
        100 Ohm 2 Watt Resistor measures 300 Ohms Bad Replace with 3 Watt.
        2200 uF 10 V Cap measures Unstable&Domed Bad Replace.
        1000 uF 25 V Cap measures 937 uF ESR is normal Good Replace anyway.
        1000 uF 10 V Cap measures 956 uF ESR is normal Good Replace anyway.
        680 uF 25 V Cap measures 600 uF ESR is Normal Good Replace anyway.
        220 uF 25 V Cap measures 196 uF ESR is Normal Good Replace anyway.
        82 uF 400 V Cap measures 76.3 uF ESR is normal Good Replace anyway.
        33 uF 35 V Cap measures 33.2 uF ESR is normal Good Replace anyway.

        --I have placed an order with Digikey good Nichicon and Panasonic Caps and the Resistor. I will report back when they are installed.

        "But leave the Wise to wrangle, and with me
        The Quarrel of the Universe let be:
        And, in some corner of the Hubbub couch'd,
        Make Game of that which makes as much of Thee.
        "Omar Khyayyam" 1048 1131


        Best Regards
        Clear Ether
        Attached Files

        Comment

        • SgtRock
          Senior Member
          • Feb 2012
          • 175
          • USA

          #5
          Re: Westinghouse L2210NW Power and ?

          Greetings Badcappers:

          Replaced the caps and the resistor. Now like new. See attached. Thanks

          "A thing of beauty is a joy for ever:
          Its loveliness increases"
          John Keats 1795 -1821

          Best Regards
          Clear Ether
          Attached Files

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA

            #6
            Re: Westinghouse L2210NW Power and ?

            Great job and thanks for the good news, it is really hard to be 100% sure that the problem is T-CON or bad power supply.
            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

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