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.
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??
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.
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.
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What is your TV source? The Polaroid LCD-2000 only has a NTSC (analog) tuner. Most OTA stations switched to ATSC signals a few years ago and a converter box is required to watch the TV. (A few low power TV stations still broadcast in NTSC but you need to be fairly close to the transmitter to receive the channel.) If you have cable, check if they have migrated to digital cable (QAM for unencrypted channels). If that is the case, you'll need a cable box.
With a digital-to-analog OTA converter box, you can still lose station reception due to the signal strength cliff. Depending on your area, you may need an external antenna or to check the direction of the antenna. I know I have to rotate the outdoor antenna every so often. It shifts in high wind. Even if the antenna only moves 5 degrees, we will lose the signal for half of the stations.
Sorry but I've never heard of a DIGITAL ANTENNA, ALL antennas are ANALOG NOT DIGITAL, and yes you will be able to tune in some TV stations if you live close enough of TV stations that still transmit ANALOG signals, with a GOOD VHF/UHF antenna you can have good reception and viable TV time... (best of all it's FREE)
Use an Antenna that Provides Good Reception of All Channels
Most existing antennas used by consumers will provide good reception of DTV signals. (Before making any changes, try your existing antenna first to see of it allows you to receive all the stations you normally watch.)
For watching DTV signals, you will need an antenna that provides good reception of both VHF signals (channels 2-13) and UHF signals (channels 14-51) to reliably receive all of the digital signals broadcast in your area.
Many antennas are designed only for reception of either VHF or UHF signals (but not both). For example, the commonly used “rabbit ears” indoor antenna is only suitable for receiving VHF signals. To receive UHF signals, an indoor antenna should also include a wire loop or other feature for reception in that band.
The reception capabilities of TV antennas also vary considerably, so be sure to talk to retail consultants and look at information on the packaging and/or the Internet to make sure that any new antenna you may choose provides good reception of both VHF and UHF channels. In addition, if you use an indoor antenna and receive signals on VHF channels, you may need to use an antenna with amplification.
Many antennas currently being sold as “HDTV Antennas,” perform best at receiving UHF signals; some of these models state that they provide reception of signals on channels 7-13 but actually perform less well receiving those channels. If you obtain one of these antennas, be sure it provides good reception of all the VHF channels as well as the UHF channels.
Check that your digital-to-analog converter box or digital television is connected properly. Make sure your antenna is connected to the antenna input of your digital-to-analog converter box or digital television. If using a digital-to-analog converter box, also ensure that the antenna output of your converter box is connected to the antenna input of your analog TV. Refer to the owner’s manuals of your components if you are unsure of the proper connections.
Ensure that your components are plugged in and have their power turned on.
If you have a digital-to-analog converter box, tune your analog TV to channel 3. You should see a set-up menu or picture displayed on your TV screen. If you do not see a set-up menu or picture, tune your TV to channel 4. If you still do not see a set-up menu or picture, recheck your connections.
Perform a Channel Scan
Digital-to-analog converter boxes and digital televisions have a button, usually on the remote control, that is labeled “set-up” or “menu” or some similar term. Press that button to access the set-up menu. Using the directional arrow buttons on your remote, scroll to the option that allows you to perform a “channel scan.” The channel scan will automatically search for digital broadcast channels that are available in your area. Consult the owner’s manual of your digital-to-analog converter box or digital television for detailed instructions on how to perform a channel scan for your device.
Once the channel scan is complete, you will be able to tune to the digital channels received by your antenna. You should perform a channel scan periodically to check whether additional digital channels have become available.
Adjust Your Antenna
Small adjustments to your antenna can make a big difference in the number of digital channels you can receive. If you have an indoor antenna, try elevating it and moving it closer to an exterior wall of your home. After adjusting your antenna, perform another channel scan to see if your reception is improved.
While adjusting your antenna, it may be helpful to access the “signal strength meter” on your digital-to-analog converter box or digital television to determine whether your adjustments are improving the signals’ strength. The signal strength meter is usually accessed through the menu feature on your remote control. Refer to the owner’s manual of your device for detailed instructions on how to access its signal strength meter. Remember to do another channel scan after you have adjusted your antenna.
Television stations broadcasting in digital use both the VHF band (channels 2-13) and UHF band (channels 14-51). Many indoor antennas use “rabbit ears” for the VHF band and a “loop” or “bow-tie” antenna for the UHF band. Make sure you are using an antenna that covers both the VHF and UHF bands and have connected it properly.
If You are Still Having Difficulty:
Until June 12, 2009, some stations will be operating at reduced power levels. If you are not receiving certain digital TV stations, this does not necessarily mean there is a problem with your antenna or digital-to-analog converter box or digital television. Check with the TV station to find out whether they are planning changes that will improve reception.
When an analog TV signal is weak or receives interference, static, snow, and distortion will often appear on the screen. Digital broadcasting will provide a clear picture; however, if the signal falls below a certain minimum strength, the picture can disappear. This “cliff effect” means that if you watch analog TV stations that have static and distortion, you may have to adjust or upgrade your antenna system.
Simple indoor antennas provide minimal performance that may not be suitable for your location. If you are unable to obtain satisfactory DTV reception with your current indoor antenna, you may wish to obtain an indoor antenna that includes features for better reception of UHF signals, as well as VHF, and/or an amplifier to boost the received signal (often referred to as an active indoor antenna).
Generally, an outdoor antenna will get better reception than an indoor antenna. However, the performance of outdoor antennas can degrade over time due to exposure to the weather. If you are having problems, check for loose or corroded wiring, broken antenna elements and that the antenna is pointed in the right direction.
Try to keep the length of wire between your antenna and digital-to-analog converter box or digital television as short as possible for best reception.
“Splitters” that are used to connect a single antenna to multiple digital-to-analog converter boxes or digital televisions reduce the amount of signal available to each device. If you are having problems, check whether reception is improved without the splitter. In some cases an “active” splitter that includes an amplifier can solve the problem.
If you are near a station’s broadcast tower, reception of that station, as well as other stations, can be impeded by strong signal “overload.” Consider using an “attenuator” or removing amplifiers to improve your reception.
If you decide to replace or upgrade your indoor or outdoor antenna, many types are available from electronics retail stores at a variety of prices. Websites such as www.antennaweb.org provide information on the locations of broadcast towers and the types of outdoor antennas appropriate for the stations you wish to receive. If you need assistance with upgrading your antenna system, check with a local antenna retailer or antenna installer.
The channels for a digital stations are really just "names". Thy will be the number for the old analog channel followed by a "-" and a number 1 through 4. The actually frequency can vary
from the old frequency. You can see this at; http://www.tvfool.com/
To set up your tv, you will have to connect your signal source (Antenna or Cable) to the set. Go into the menu and select the Signal source (Channel) to match what you connected.
Go into the menu for scan or auto program and SCAN in the channels in your area.
Now you can watch the stations on your set.
If the broadcast frequency of any station change, you can re-scan it in again. The "name" will not change so the change will be invisible to you.
If you are getting the "No Signal" message you need to connect an antenna or cable to the antenna input. You also need to go into the menu for your signal source and select ANTENNA or AIR if you are using an antenna OR CABLE if you are using cable. NEXT YOU WILL HAVE TO SCAN IN YOUR STATIONS !! This is not like the old analog sets that plug in and run.
The instruction manual will give you precise instructions.
I have a Magnavox TB110MW9A converter box that has worked fine for the last 8 months. Now you turn it on, the light blinks 31 times, stays on and there's nothing on the screen! The remote does nothing. (yes, I put new batteries in)
ATSC tuners ("D/A converters") pick up signals off the air just like old school television. It sounds like you are just not getting a signal of sufficient strength. A weak analog signal looks like a "snowy" picture, which most of us are used to. But, the new digital channels quickly go from a perfect picture to none at all. It's basically all-or-nothing.
Try attaching an antenna to your converter. I know you can buy a new antenna from your local big box electronics store which is labeled "Terrestrial HDTV" or something, but that really doesn't mean anything. You can use any old TV antenna. Even a quality FM antenna (with an F-Pin coax connection) may work just fine.
When setting up the antenna, keep in mind that different channels are transmitted from different towers, in different locations with different strengths. Move the antenna placement and position around (just like grandpa had to do). You may have to make a compromise to get the best signal for your favorite channels.