Question about Panasonic TH-50PX25U/P 50 in. HDTV Plasma Television

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Loss of picture and sound.

I have a TH-PX25 television that I purchased in 2004. Input is an antenna. Signal strength is good (about 90). After about 1 year, the picture would become eratic on occasion, and blank out all together, including the sound, sometimes. The problem occurred more frequently over the years, and now I rarely get a picture to remain for more than a couple of hours. At one point I changed inputs from the A port to the B port and that reduced the frequency of the problem, but now both ports are bad. Meanwhile, the picture-in-a-picture works just fine.

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Did you check in your tv settings about which input is either cable or antenna, try doing a "autoscan" of channels based off your antenna, after seeing what your main input is

Posted on Jan 11, 2009

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Low input signal strength, due to poor antenna connection; defective tuner, improper orientation of the antenna; etc; might cause a snowy picture.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
If the transmitter is so far away, it too can be the cause, as the signal falls at the antenna to be low. If this is the case, connecting a signal booster; between the TV set and the antenna will give better result.

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If you have a good picture on some channels and the picture breaks up on others , it could be the input signal. What is the source of the input signal; i.e. cable, satellite, antenna???? Do you have a cable box? The problem may be with the box or with the provider's signal.

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Need to know how to change and setup for use of antenna


Purchase your UHF/VHF antenna. The antenna can also be purchased at most electronic and retail stores. Consult your list from Step 1 and see how powerfulicon1.png the over-the-air signals are for your specific address. Purchase your antenna based on the broadcasting power you need to receive a clear picture on your TV. You might be able to get away with an indoor antenna if your signal strength is strong enough. If not, you'll need to purchase an outdoor antenna.

  • 4 Install your antenna (or have it done professionally) according to the building codes of your area. If you must use an outdoor antenna, it is a good ideaicon1.png to have the antenna professionally installed. This ensures that it is properly grounded on your roof, not too close to electrical wiring and stable during inclement weather.
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  • Read more: How to Replace Cable TV or Dish TV With Antenna TV ' eHow.com http://www.ehow.com/how_5228282_replace-dish-tv-antenna-tv.html#ixzz2RrACTyTI

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    You might want to try another type of antenna for that, Sure most antennas do work but it depends on what area you are located i;e how far you are from the tower.

    I do recommend if you are far from a tower that you do use a outdoor solution, or a indoor solutions with a signal booster.


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    Our new digital LCD tv occasionally suffers from picture breaking up and even total loss of signal, after some time, 5 to 15 minutes the signal is restored. Fiddling with the aerial run and connections has...


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    Antennaweb.org and tvfool.com are good sources for the antenna direction - just plug in your address. tvfool.com gives a range of stations, their signal strength and direction with notes for the appropriate antenna for receiving the stations. Antennaweb is much more conservative in the station list and assumes an outdoor antenna.

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    Cindy Wells
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    Did you use an inside or outdoor antenna? An outdoor antenna rotated in the correct direction will give you the best chance of getting any signal. Look at antennaweb.org and tvfool.com for the channels in your area, the direction in which the antenna must be pointed and the type of antenna you will need to get them. Antennaweb.org is very conservative in the channel listings even with the assumption of an external antenna. Do you have hills, trees or tall buildings between you and the various transmitters? That will block your signal strength - remember digital TV is an all-or-nothing signal.

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    Cindy Wells
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