Humax LNR-32TPVR - No picture

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  • Jooo
    Badcaps Veteran
    • Oct 2011
    • 222
    • Finland
    #1

    Humax LNR-32TPVR - No picture

    Hi,
    I'm trying to troubleshoot this TV that has no picture, however the backlights will turn on but the screen stays black.

    The PSU had couple of bad caps, I recapped the PSU with Panasonic FM and Chemi-Con KY, and for the smaller caps I used Rubycon ZLH.
    I had to leave three 1000uF 35V caps because I had no replacements for them, but I measured them and they were good.
    The output voltages are good and stable.

    The LIT-32TPVR board also had bad caps. One of four Sam Young NXC series 1000uF 16V capacitor was visibly bulged.
    I replaced all of them with Chemi-Con KZE 1200uF 16V.
    There were also two bad Sam Young SHL 22uF 16V capacitors which had high ESR, I replaced them with Panasonic FM 22uF 50V.

    All this made no change whatsoever.
    Any suggestions on what to try next?
    Attached Files
    Last edited by Jooo; 01-04-2014, 04:04 PM.
    Tags: None
    • wataka
      New Member
      • Jan 2015
      • 1
      • Rassia
      #2
      Re: Humax LNR-32TPVR - No picture

      Wanted see the scheme.

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