LG 26" LCDTV 26LC7R input problem

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  • eauyong
    Member
    • Sep 2008
    • 18
    #1

    LG 26" LCDTV 26LC7R input problem

    Please advise any ideas to solve this problem which will be much appreciated.

    The details of this TV is as follows:
    LG LCD TV model 26LC7R-TB
    Product code: 26LC7R-TB.ATCGLJD
    Manufactured: November 2007.

    The TV could not start up so I open it up and found 4 leaking caps as shown.
    It was replaced by PANA caps.
    Bad caps were from SAMWHA as follows:
    680uF 35V 3pcs replaced by Pana FR equivalents.
    3300uF 10V 1pc replaced by Pana FM equivalent.

    The TV can now be started up easily but there is a new problem.
    Selecting TV and Component-1, the full colour and tint is normal but upon selecting the rest (AV-1, AV-2, Component-2. RGB/PC, HDMI-1 and HDMI-2, full colors will not be displayed and a purple tint is predominant.

    I can deduce that the TV works fine except that some input section have problem.

    I attached photos showing the power, main board, all the input screens and the bad caps.

    Any advice would be much appreciated.
    Attached Files
    Last edited by eauyong; 03-21-2014, 11:54 PM.
    Tags: None
    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6457
      • Australia
      #2
      Re: LG 26" LCDTV 26LC7R input problem

      So what happens when you actually hook up a source and have video running through it on each of those inputs?

        Comment

        • tw2005
          Badcaps Legend
          • Oct 2011
          • 6457
          • Australia
          #3
          Re: LG 26" LCDTV 26LC7R input problem

          Maybe each input has had it's picture mode set? Try picture reset or select each source and go into the picture menu and see if it's been tailored.

            Comment

            • eauyong
              Member
              • Sep 2008
              • 18
              #4
              Re: LG 26" LCDTV 26LC7R input problem

              I have reset all and try all settings but to no avail.
              Usual connections are HDMI-1 and Component-1 which I attached the photos which shows the differences.
              Attached Files

                Comment

                • tw2005
                  Badcaps Legend
                  • Oct 2011
                  • 6457
                  • Australia
                  #5
                  Re: LG 26" LCDTV 26LC7R input problem

                  well that's absolutely weird, great picture otherwise. one would have to assume mainboard issue, corrupted settings who knows. IC500 gets a mention in the manual for incorrect display but???

                    Comment

                    • eauyong
                      Member
                      • Sep 2008
                      • 18
                      #6
                      Re: LG 26" LCDTV 26LC7R input problem

                      Problem solved. One setting I missed out is the picture mode. Changed to "Standard" instead of "Dynamic". Thanks tw2005.

                        Comment

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