Question about Vizio GV42L 42 in. LCD Television

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Cannot tune digital stations anymore, can only get the analog

My vizio about 1 year 4/5 months old. I have a signal boosted antennae plugged into the coaxial input. It worked great, I picked up a ton of OTH signals, both analog and digitial. About 2 months ago, one day, I turn on the TV and lost the ability to change channels with the channel up/down button on the TV and on the remote. As a matter of fact, all my digiatial substations are gone (blue screen). I can still tune my analog stations if I manually press the tv station #. If I did a new channel scan, it would pick up the analog, but then the yellow progress bar would never begin to move on the digital level. It just stayed at 0% until I cancelled.

I unhooked everything in the back, rehooked, turned it on/off and eventually it works again. TV turns on, I can change channels right away and I can rescan everything, perfect. This lasts for about a week, and then it happens again. I went through this dance for about a month and a half, and now, no matter what I do, I cannot get my digital stations. I am out of warranty, and before I bend over and think about getting out of warrantly repairs done, I want to run it past the experts here. Any ideas? Am I hosed? All my other inputs work without issue.

So to recap, when I turn on the TV, it is "frozen" for about 30 seconds. I cannot change channels/volume/inputs. Then it "unfreezes" and I can change channels by directly entering the analog channel. Digital channels are in blue. Also, every now and then, I turn on the tv and get only the sound. I have to turn it off....wait for the "magic click" and turn it back on. But I still have the analogs only.

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  • Anonymous Jun 14, 2008

    I have the Vizio L32 model for abou 1 year 8 months, eveything works, but when i go to the digital channels (AIR channels), i only get a blue screen, when i hit in the remote the menu option i can scroll all the way to the tv channel setup but then it dissapears, and it freezes, i have to turn it off.

  • Anonymous Jun 22, 2008

    I turned to a digital station and got it. Then the sound went off and the TV won't respond to anything. The remote won't make it work, the controls on the side of the TV don't work - nothing. I unplugged it and plugged it back in. It still won't work. It's about 3 months old. Ridiculous!

  • Dee22 Aug 12, 2008

    I have had my TV for about 5 months and I am starting to experience problems one day the remote would not change the channels. Then I notice there were no digital channels I turned the TV off and on. Then I did the channel setup then it was working but there were still alot of digital channels missing. Then once again another day the same problem happened again. I have model VW46LF

  • Anonymous Sep 16, 2008

    I have the same problem described by hBruin.
    I am very disappointed by Vizio.

  • dennisn Sep 29, 2008

    Nearly identical problem, no digital channels, no digital scan. Analog works if keyed in. TV is 1 1/2 yrs old.

  • Anonymous Dec 27, 2008

    Same problem here on brand new Vizio -- digital channels all say "no signal", turning the unit off and then on fixes the problem. ???

  • Anonymous Mar 11, 2009

    Vizio G42L: Same exact problems as described above. Tried re-programming remote, but no effect. Tried to re-scan for channels & analog picked up fine, but digital froze & tv wouldn't respond after that. Killed power & now I get analog channels, no digital, & remote or tv buttons will not change channels, only direct channel number input works. What is going on?

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4 Suggested Answers

  • 3 Answers

SOURCE: Digital channel signal blue screen only

Press the "INPUT" button and make sure "TV" is highlighted.

Posted on May 18, 2009

  • 60 Answers

SOURCE: 47" Vizio Flat screen HD LCD freezes up and remote will not work.

could it be Ch 9's digital signal is not broadcasting right? what is your refresh rate on your tv? 60 or 120hz? if its 120hz, then its more then likely the digital broadcast, if its 60hz I think its your tv can't keep up with their signal that may be at 120hz. Make since??

Posted on Apr 28, 2010

  • 1 Answer

SOURCE: Vizio 37L suddenly stopped getting all digital channels

The following is from Vizio Tech Support and it totally worked when the other ideas on this site didn't.

"I recommend clearing the TV memory, resetting the settings and re-running the scan.

To perform this please remove the cable connection and run a channel scan to clear out the existing channels.

Once this is finished please perform a power cycle on your TV. Please follow the steps in this order:
8
1- Power off TV
2- Unplug TV from outlet
3- Press and hold in the power button on the TV for 30 seconds (while it is unplugged from the wall)
4- Release the power button
5- Plug in the TV into a different outlet
6- Power the TV back on

There is also a factory reset option in your menu under the SETUP section. It will say either "reset all settings" or "system reset". I would recommend this option as well.

Once the power cycle is finished and all settings are reset. Plug the cable line back in and run the channel scan."
If I did it again i probably wouldnt "reset all settings", I would try the scanning section first and see what happens. You can always go back through all of the steps if doing only part of it doesnt work.

Posted on Oct 08, 2010

electrotech1
  • 1126 Answers

SOURCE: I have a Vizio VW42LF TV that is 2 yrs old.

The TV processor could have some garbage in it do to a small power surge and if you leave your TV unplug for 40MIN., then that will reset it bad to normal, and if tuner still looks snowy and not getting channels, then the tuner, or main TV module needs replaced.

Posted on Dec 19, 2010

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