Question about Vizio GV46L 46 in. LCD Television

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DTV Input After months of working, the DTV input comes up blank when acitvated. The DTV signal flashes momentarily then the screen goes blank.

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  • Anonymous Sep 06, 2008

    DTV input gives a blank screen. All other input areas work great. I have tried the system reset--no help. I noticed poor response on the remote AFTER selecting DTV as an input. For now, we are using a set-top box ASTC tuner--but would like to get the Vizio ASTC (DTV) tuner working--it picks up remote channels better than our substitute tuner

  • Lone_heckler Nov 06, 2008

    Mine is doing the same thing but once it warms up the DTV tuner works.

  • msk1 Feb 04, 2009

    Same problem on a 3 year old Vizio GV46LHDTV - we get the same black screen by selecting DTV, and then the remote is TOTALLY non-functional - we have to use the buttons on side of the panel in order to get back in operation.

  • ice-kiss Mar 19, 2009

    I have the same problem. It started about a year ago. It would happend about once a week. Eventually it was every day. Then it would work only after the TV was on for a minimum of 3-4 hours. Now it no longer works at all. If you are tired of using the side panel buttons, use the INPUT button on the TV remote. A service tech from a local firm has told me that replacing the main board will solve the problem.

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Lone_Heckler -- did you get a part number number for the "main tuner board"? I have the same issue and would like to try fixing it myself...

Posted on Jun 11, 2009

  • drew412 Jun 11, 2009

    Lone_Heckler -- did you get a part number number for the "main tuner
    board"? I have the same issue and would like to try fixing it myself...


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Well mine is now fixed.

$250 for the main tuner board and another hundred for labor.

I did find that there are some "like new" boards out there from otherwise damaged units. For instance a Big Box store damages a flat screen or exterior trim, the board is removed and tested.

The "like new" boards I found are about $150 with a 90 day warranty. The new board also has 90 day warranty.

The tech guy that posted here was correct. Thank you.

Posted on Apr 27, 2009

  • Lone_heckler Jun 12, 2009

    To DREW412
    I don't have the reciept but I can see if the part number is on it. The service tech told me that Vizio is now making parts available for on line order. I believe my tech bought the part from an East Coast supply house.

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