Question about LG 42LC2D 42 in. LCD HDTV

2 Answers

Hi Guys, I am working on an LG LCD tv mod # 37LB4D TV turns on, backlight lcd lights up,however there is no picture. Even menu list doesnot display. Any Solutions? thanks.

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  • jiro Sep 08, 2010

    Hi Rylee,
    I have opened up back of this tv. I think the backlight boards are working fine since I can see the backlights lighting up as I turn the tv on , and turn off when the tv is off.
    Any other suggestions?

  • jiro Sep 11, 2010

    Thanks Rylee, I hope i can find the board easily.

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2 Answers

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  • Master
  • 8,619 Answers

Hi


Thanks for using FixYa. Hope you already know that this cannot be corrected through the MENU options. To resolve this issue you'll have to open the back of the unit and check the inverter board which is the power supply source for the backlights. The issue can be a bad inverter board and/or the inverter board is not getting 20vdc from the power supply maybe due to the connector that has gone bad/loose.All this is only recommended to be done by someone who has electrical expertise and knows about the internal circuitry of the unit. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Posted on Sep 08, 2010

  • Rylee Smith
    Rylee Smith Sep 09, 2010

    Check the T-con board

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  • LG Master
  • 5,138 Answers

Ck power supply board for Bad Capacitors they will be vented,swollen or puffed up on Top 2200uf 10v 3300uf 10v 1000uf 16v

Posted on Sep 09, 2010

  • mannypacute Oct 15, 2010

    PRESS THE T.V AND SMASH IT WITH THE HAMMER!
    3x AND IF IT DOESN'T WORK..
    UNPLUG THE T.V AND PICK IT UP AND THROW IT OUTSIDE THE WINDOW!!
    AFTER THAT PICK IT UP AND PLUG IT..
    POST THE RESULT AND TAKE A VIDEO!

    IT REALLY WORKS!! :D

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