VO42L FHDTV10A - fixed but flicker??

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  • andyak
    New Member
    • Feb 2011
    • 4

    #1

    VO42L FHDTV10A - fixed but flicker??

    Hi,

    I replaced the inverter boards (slave was bad- burn't out video chip)
    put in the newer revision 1.3 boards.

    Now if I put the backlight below 90% the whole screen will flicker progressively worse the lower the backlight.

    Never had that problem before - don't need to burn my eyes out watching it

    any ideas? power supply issues?

    Thanks in advance,

    Andy
  • cadiman
    Badcaps Veteran
    • Mar 2010
    • 397

    #2
    Re: VO42L FHDTV10A - fixed but flicker??

    I just picked up a similar style 42lg30-ua and it has the master/ slave set up. I have read that you should replace the master and the slave in pairs (not sure if this is true).

    I don`t know alot about these, but I think they work together more than they work apart. You might need to keep the revisions the same as well.

    Comment

    • andyak
      New Member
      • Feb 2011
      • 4

      #3
      Re: VO42L FHDTV10A - fixed but flicker??

      I replaced both inverter boards with the replacements.
      Now I have to keep backlight over
      90% or I see flicker

      Also, if I turn on dynamic range I get the flicker.

      Otherwise works fine ...!?

      Anyone else notice this with 1.3 revision of these LG
      Inverters?

      Thanks
      Andy

      Comment

      • cadiman
        Badcaps Veteran
        • Mar 2010
        • 397

        #4
        Re: VO42L FHDTV10A - fixed but flicker??

        I repaired my slave inverter and I also had three burned out ccfl bulbs.
        AU-OPTRONICS panel.
        After replacing ccfls tv was fine. No more inverter buzzing. I took used ones out of another panel.

        AU-OPTRONICS had a couple of different ccfls. I was able to use the pin style but had to solder them in place.

        Comment

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