32LC51 power supply: still not working after caps replacement.

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  • Nikolai Tesla
    Member
    • Oct 2016
    • 28
    • Netherlands
    #1

    32LC51 power supply: still not working after caps replacement.

    Hi all,

    this power supply starts with a red led, after hitting the on button it gives 4 green blinks, the last one lasts a little longer, and then swithes off. Back to red.
    I replaced all the capacitors (exept the buffer elco's).
    I resoldered all the power semiconductors and the transformers.
    the board is a EAX32268501/9 rev 1.1
    I know a EAX32268501/14 REV. 1.4 works also fine. I know that the tv will work with a good board, because I have 2 tv's of this type.
    The replacement board is called EAY34795001.

    Notes: I can see a red led turning green on the main board (from red) when I switch the tv on.
    I see a blue led switching on on the TCON, after a few seconds it switches off.
    Last edited by Nikolai Tesla; 12-04-2017, 07:24 AM.
    Tags: None
    • Nikolai Tesla
      Member
      • Oct 2016
      • 28
      • Netherlands
      #2
      Re: 32LC51 power supply: still not working after caps replacement.

      I forgot to say: this is a LG tv. So, if a moderator sees this, the title must be:
      LG 32LC51 power supply: still not working after caps replacement.

      Updating the title is highly appreciated.

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