All of a sudden, there is no signal found using the main tuner. I did an autoscan, and no analog or digital channels are found. I can get a few channels on the PIP tuner if I split the screen. I had been using a cable card from Comcast, but removing it did not make any difference. I am now using the TV component inputs with an external cable box and it works fine as a monitor. Any ideas? Thanks!
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It is no different that channel scanning for cable or analog over-the-air channels. You simply ensure that you have selected the digital tuner of the set prior to scanning. Some older flat panel sets do not have integrated digital tuners. A digital antenna alone will not allow these sets to receive digital broadcast channels. A converter box is needed to convert the digital broadcast signals to analog for the tuner in the set. Also, sets that do not have digital tuners may not support the resolution rate of digital TV broadcasts. Most digital HD broadcasts are 720p and a few are 1080p.
yes it does seem to be a tuner problem , I also wonder what happens when you use the auto channel finder and tuner usually found in the set up section of the menu ? As well as was your TV working before and receiving input via the antennae but has now stopped working in this regard ? I also noted that attaching an analog to digital converter box worked fine , so your TV is capable of receiving a signal via that method , dose the converter box use your antennae input jack or a video jack to send the converted signal into your TV ? if it is using your antennae jack then it may not be a tuner problem .
No,all small tvs CRT tubes analoge tvs design under 35" none of the tvs have a digital tuner inside of it tv Tuner signal board.Must get a signal through a Digital Converter box to recieve a free on AIR broadcating channels from a Digital broadcasting signal.Tvs that are analoge CRT tubes design that have a Digital Tuner design inside of it are only some DLP tvs analoge CRT tube design 40" and above have it only.
What type of antenna installation are you using? Do you have it aimed at your local transmitters? Do you have tall trees or buildings that could block the signal? Do you get signal from a low-power analog station in your area (pass-through or direct)? If you have an analog station with a transmitter near that of the digital ones, you'll have some idea of if the antenna is pointed correctly. (Digital signals do not get tuned in the way a weak analog signal does. There is no poor picture option; you either see it or you don't).
Go to antennaweb.org or tvfool.com for information on station transmitter locations that you should be able to receive (if in the US). Just enter your address. Antennaweb is very conservative in the channel list even though it assumes an external antenna. Tvfool gives recommended antenna types for each transmitter in your area. The antennas are labeled with a color code by the manufacturer.
If you are sharing the OTA signal from your antenna with several TVs, you may need an amplifier.
I've had one D-T-A box fail due to a lightning strike hitting the antenna; the tuner was damaged by the power surge. I've also had amplifiers that lost the VHF (2-13) channels after a surge. If you have a lightning protection system, check it as well. The simplest diagnostic for these problems is checking if a new D-T-A box or a TV with a digital tuner can scan the channels and then check what the signal strength is for those channels.
Some tuners are more sensitive and will receive a channel that another tuner might not see as a strong enough signal. An amplifier can be useful in this case as well. (With the amplifier that got hit by lightning, one TV was still receivng channel 7 but the signal strength was 1 out of 7. The other TV got no signal due to a weaker tuner. Since that channel was from the closest transmitter, the amplifier was checked once the antenna direction was confirmed to be unchanged.)
I hope this helps.
Cindy Wells (Antenna type, tall trees and direction are big issues. I set up a neighbor's DTA with an indoor antenna that got one set of stations. Due to placement issues, their other TV got a different pair of stations with another indoor antenna.)
This JVC TV has an NTSC (analog) tuner. So it can only receive some of the few remaining low power tv stations that are still using analog transmitters. Depending on your location, you may not have any of these stations within the range of the antenna.
You need an digital-to-analog tuner to get additional channels. Use tvfool.com or antennaweb.org to check for stations in your area and the appropriate direction to point that antenna. (You may need an amplifier since digital stations are either sufficient signal for the tuner to use or you get "no signal".)
Please note that the d-t-a tuners that were available with the government coupon cards only handles standard definition signals (480i). The HD tuner digital to analog converters are available at some online sites but cost more.
I hope this helps.
Cindy Wells (you can use a tuner in your computer (USB or PCI card), but you will need a converter unless your video card can put out a signal other than RGB. The HDMI port on the TV will not interface directly with a computer.)
Best solution would be to use an outdoor antenna with an amplifier(booster)--but in some areas you may get by with an amplified set top antenna. Just all depends on your location..
In perspective, I have an outdoor UHF dish and 10 foot VHF antennas with an amplifier and still i get only fair reception on outlying digital stations that normally come in clear on analog.
Also--this converter box must complete the autoscan with an antenna attached, or else you'll receive NOTHING; not even by manually selecting a known digital channel.
This #@!! box automatically locks out what it considers to be unused or weak channels. It makes the decisions and you're left with 'no signal' messages and nothing to do but try a rescan.....and you cannot add channels to any it has already found.
One of the problems with digital reception is if the signal is not strong enough for the converter box/or built in tuner on a new TV- you will not get any picture at all. If you followed all the directions-and the converter box shows no channels- then you do need a better antenna. I don't know how far you are from the broadcast antenna, but a good rule of thumb is if you live 10 miles away, buy an antenna that is good for twice that distance, or further. They are rated in miles of reception
I don't have this unit, but guessing from it's description on Amazon.com, I'd figure that it is analog-only. So you would need a converter.
Here's the thing: all U.S. broadcasters are transmitting the new DTV signals NOW - in addition to the old analog signals. If a TV has a digital tuner, you should be able to use it now to see those DTV signals. Check your setup menu for options like ATSC. One hint, the new signals use channel designations like 7.1 or 7-1 or 7-1HD. And some stations will have virtual channels, i.e., 7.1, 7.2, 7.3. If you can't get your TV to scan channels and show the numbers in that fashion, it isn't using a digital tuner.