Vizo L32HDTV10A No digital input on main board

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  • 102mm
    Senior Member
    • Dec 2013
    • 181
    • us

    #1

    Vizo L32HDTV10A No digital input on main board

    So i picked up this Vizio from the dump today. It turns on and works except for the HDMI and the DTV. the weird thing is when i go to the menu and attempt to do a channel search the OSD goes away and the TV is unresponsive but i can still turn it off. All other menu options work until i get to the Channel setup sub menu. I've checked the voltage regulators on all the main board and the digital board and they all are ok. Any Ideas? The Main Board P/N: 3370-0072-0150, Digital Tuner P/N:3370-0052-0187



    Digital Tuner


    Main Board
    Attached Files
    Craigslist Picks & Fixes

    2 ea - Samsung 52"
    Samsung 60"
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Vizo L32HDTV10A No digital input on main board

    I would at least check the Voltages of the regulator ICs to start with.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • 102mm
      Senior Member
      • Dec 2013
      • 181
      • us

      #3
      Re: Vizo L32HDTV10A No digital input on main board

      I checked all the 1117 voltage regulators on the main board and the digital board. they all seem fine. I'll check the smaller ones tonight. I need to figure out what controls the digital portion of the TV. there is a separate sub-menu for that portion. that's where it locks up
      Craigslist Picks & Fixes

      2 ea - Samsung 52"
      Samsung 60"

      Comment

      • mykolas
        Member
        • Mar 2014
        • 18
        • usa

        #4
        Re: Vizo L32HDTV10A No digital input on main board

        I know it was a long time ago, but did you ever find the answer to this problem?
        I've been offered the same set with the same problem. Don't want to waste my time if it wasn't worth the trouble.



        Mykolas

        Comment

        • Andrew F. Ali
          Badcaps Legend
          • Jan 2014
          • 2450
          • Trinidad & Tobago

          #5
          Re: Vizo L32HDTV10A No digital input on main board

          A solutions/recommends are:
          1. Acquire and update the Firmware.
          2. Replace the Main Bd. if available.

          I would go for the 2nd option, as it may be easier.

          Comment

          • mykolas
            Member
            • Mar 2014
            • 18
            • usa

            #6
            Re: Vizo L32HDTV10A No digital input on main board

            I picked up the set, picked the "dtv" option from the input source. Went to the menu to select "tv" option the screen goes blue and the menu disappears. Can not get the menu back unless you turn the set off.
            Tried to find the firmware update on the Vizio website but no luck finding it.
            I considered replacing main but if the board does not have the latest upgrade I'll be back to square one.

            Asking to see if someone on the list would know where to get the upgrade(if one exists).


            Thanks for looking,


            Mykolas

            Comment

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