Question about Vizio GV42L 42 in. LCD Television
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.
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
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:
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
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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