AKAI model# LCT42Z5TAP screen going R G B and white

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  • erskine
    Member
    • Jan 2014
    • 20
    • barbados
    #1

    AKAI model# LCT42Z5TAP screen going R G B and white

    hi all ,
    I am repairing this akai lcd that came in with no power .
    I replaced some 220mf caps on the main board and got it
    to power up.
    Now its just comes on with a red screen and it goes blue then green and then .
    white . and repeats that cycle over and over.

    anyone knows what causes this problem?
    thanks
    Tags: None
    • mmartell
      Badcaps Legend
      • Oct 2013
      • 3189
      • Canada
      #2
      Re: AKAI model# LCT42Z5TAP screen going R G B and white

      Test patterns ? Try to find out how to do a factory reset maybe.

        Comment

        • erskine
          Member
          • Jan 2014
          • 20
          • barbados
          #3
          Re: AKAI model# LCT42Z5TAP screen going R G B and white

          will try to find out how to factory reset it

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12129
              • U.S.
              #4
              Re: AKAI model# LCT42Z5TAP screen going R G B and white

              Originally posted by erskine
              hi all ,
              I am repairing this akai lcd that came in with no power .
              I replaced some 220mf caps on the main board and got it
              to power up.
              Now its just comes on with a red screen and it goes blue then green and then .
              white . and repeats that cycle over and over.

              anyone knows what causes this problem?
              thanks
              have a sony KDL-46S4100 with exact same problem, saw where a few people fixed with another a board, didn't seem to work for me, unless I got 2 bad ones.

                Comment

                • erskine
                  Member
                  • Jan 2014
                  • 20
                  • barbados
                  #5
                  Re: AKAI model# LCT42Z5TAP screen going R G B and white

                  well i cant even find the info to fatory reset the thing .
                  seem unusual , but i downloaded the service manual . so will try
                  fixing it without replacing any boards.

                    Comment

                    • nomoresonys
                      Badcaps Legend
                      • Jan 2013
                      • 12129
                      • U.S.
                      #6
                      Re: AKAI model# LCT42Z5TAP screen going R G B and white

                      Originally posted by erskine
                      well i cant even find the info to fatory reset the thing .
                      seem unusual , but i downloaded the service manual . so will try
                      fixing it without replacing any boards.
                      same here, would like to try factory reset but don't know if I can with it in this state?

                        Comment

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