Question about Vizio L37 Television

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Vizio L37 blue screen only, "no signal", then turns itself off

All of a sudden, when i turn on the 2 yr-old tv, all i get is a blue screen w/a "no signal" message, and the tv turns itself off after 5 seconds. Vizio customer service/tech support atrocious; gave me a factory-authorized repair service phone number that doesn't work.

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  • matt Mar 07, 2009

    What is a "connection ic"? are you suggesting i replace the main board, and if so, is it something a layperson can do?

  • matt Mar 07, 2009

    i checked all connections, unplugged and re-plugged everything, to no avail. i am connected only via the coax cable, no box. tv shuts itself off after 5 sec. input button on tv doesn't change anything.

  • matt Mar 07, 2009

    YOU ARE THE MAN!!! I held the input button down w/the tv off like you suggested, and it came on. Its fixed!!! Thank you so much!!!

  • Kelly Twiss
    Kelly Twiss Mar 22, 2014

    This just happened to us 3/2014 and it worked. THANK YOU!!!!

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  • Master
  • 1,550 Answers

Connect the signal source like cables
Then go into the Channel/Signal menu on your set and select signal source.
Then go to SCAN or auto program and SCAN in all channels.

If you still get the message no signal . Then you have a bad cable /ribbon connection inside . Change this cable .

You can get one from the link below

Cable for Vizio tv


It will cost you $35 for replacement . You can do this replacement if you have service manual with you .

Else you can take to near by service center to get it repaired .

Hope this helps .

Posted on Mar 07, 2009

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Hi.please check on the following link.
http://www.tivo.com/setupandsupport/technicalsupport/issueswithmydvr/I_See_a_Searching_for_Signal_Screen_or_a_Bl
ue_Screen_with_a_TiVo_Logo.html
check it out..
thank u..

Posted on Mar 07, 2009

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  • Master
  • 10,515 Answers

Just hold down the input button on the right side of the tv. This is the bottom one. So,
With the tv off,
press and hold the bottom button (input)
when the tv turns on, and you see the input menu
release and press the button to put the tv into a mode that works!
Thanks

Posted on Mar 07, 2009

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  • Master
  • 6,966 Answers

Hi and welcome to FixYa,

Almost always a 'blue screen' is indicative of 'no signal' which means that the TV could not sense any incoming TV reception. Pls try to check:

  • cables and connectors at the back of the TV;
  • your cable subscription and cable provider connections;
  • try using another video source such as a DVD or even an old VCR;
  • if you are using a receiver box, check the connections;
  • alternately, you may want to try switching 'SOURCES' on the TV such as Tuner, Line 1, Line 2, AUX, Video 1 or others.

Pls post back any updates on developments.

Good luck and thank you for using FixYa.

Posted on Mar 07, 2009

  • Louie  Role
    Louie Role Mar 07, 2009

    Try an external signal source such as a DVD, video cam, game console or an old VCR and set TV to Video Input. If problem persists, then it would be the video processor of the TV. On the otherhand, if there is video using another//external source, then the fault would be with the tuner block of the TV. This is of course if you have confirmed that the cable TV is working by checking with another TV.

    If you are considering a DIY (do-it-yourself), then this would require opening the TV, familiarity with electronic components & circuitry, use of a DVD/VOM and a soldering iron. It would be to your added advantage access/referencing a Service Manual or at the very least a schematic diagram. Should you be uncomfortable going this route, perhaps your best bet then would be to seek the services of an authorized service center or a qualified professional.


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  • 154 Answers

There is some fault on the main board. fault is likely in the connection ic.

Posted on Mar 07, 2009

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