Last night electrical storm. Have scanned but tv does not pick up 3 or 4, or any other channels.
If you are connected to an outside antenna it's possible the tuner electronics have failed. This can happen with cable connected, but is less likely. You might want to take it to a Best Buy store to have it tested.
SOURCE: Toshiba 26AV502U Won't Pick Up Channels
Hi albertogiler,
I am happy to help, you will need to attach a antenna to the tv to pick up OTA over the air signals, depending on your location you may be able to use a set of rabbit ears, I have provided a link to a site that will explain in depth.
http://www.antennaweb.org/aw/welcome.aspx
Let me know if this helps and please rate this solution. lone99star
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/jason_77a19afa8d604dee
SOURCE: coby tv reading no database and can't locate channels
Set the TV to your the correct system ( Air or Cable) then perform a auto channel scan.
SOURCE: TRutech 15" LCD does not pick up all channels
Check your TV settings and make sure your tuning is set for cable (may say "cable" or "CATV"). Right now you'll probably find it set for "air". If the TV is set to tune off-the-air, cable channels 2 through 13 work normally, but above that they aren't detected. Once you set the tuning mode to cable, rescan channels and you should have them all.
SOURCE: Auto Scan doesn't pick up any channels.
In the main settings, there should be an option for AIR or CATV, air is for non-cable and CATV is for cable tv. This has to be on the correct setting before you autoscan
SOURCE: Vizio 37L suddenly stopped getting all digital channels
I had the same problem with my 42" vizio. Was working fine for about a year and a half, then a month after all stations went digital, I couldn't see any digital channels and it wouldn't scan for digital signals
This is a strange go around, but it worked for me. . Tried unplugging, pushing power button for two minutes... did everything the forums suggest, with no resolve. But, here's what DID work for me. Trust me, it sounds strange, but it continues to work (and, yes... it's not a permanent fix... the channels still go out once in a while, but I can always get them back now)
Use your Vizio remote control. Turn your TV on. Press the "input" button until you get to "RGB", which is what you would connect a computer to. Make sure no computer is connected, or it's at least off if it is connected. When you get to RGB, you'll see a message that says "No Signal". After about 5 seconds, the TV will enter a sleep mode and seem as if it has turned off (orange Vizio logo). Once it completes it's little sleep cycle and "clicks" off, wait a few seconds and hit the input button again. It'll go to the next menu item. Keep clicking input until you're back on "TV", and VUALA! The channels are back!
I accidentally figured this out when trying to troubleshoot, but I'm glad I did. Didn't want to dishout $250 to get it fixed. Let us know if it works for you too!
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