Hitachi LE55W806 - just a quick flash then nothing

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  • frannyjunk
    Senior Member
    • Oct 2010
    • 78
    #1

    Hitachi LE55W806 - just a quick flash then nothing

    I have a Hitachi LE55W806 tv that would show a quick flash when turned on, the the screen goes dark. Using a flashlight, I can see that the tv is on. Initially, I thought it was the backlight so I took the tv apart (that was quite the job) just to find out that the sole LED strip (edge lit tv) was working just fine. Could this be a main board problem or the LED driver board? Pictures of the boards are attached.

    I would have just replace the LED driver board, but nobody carries it. If problem is main board, I think I have seen it on ebay.
    Attached Files
    Last edited by frannyjunk; 07-24-2021, 04:55 PM.
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: Hitachi LE55W806 - just a quick flash then nothing

      How did you test the backlight to confirm the leds were fine?
      You photo also shows a cable disconnected from the Tcon board.
      Last edited by dick_barton; 07-25-2021, 06:21 AM.
      Willing to help but I'm no expert.

        Comment

        • frannyjunk
          Senior Member
          • Oct 2010
          • 78
          #3
          Re: Hitachi LE55W806 - just a quick flash then nothing

          Originally posted by dick_barton
          How did you test the backlight to confirm the leds were fine?
          You photo also shows a cable disconnected from the Tcon board.
          I took it all apart to get to the LED strip, then tested with LED backlight tester. All LEDs lit and showed the same voltage (there were 4 segments of LEDs on one strip). As foe the loose wire, it is not for the tcon board. I think it goes to the wifi card.

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