Question about Televison & Video
It is not just one thing. All the stations are changing digital signals from the UHF frequency band to the VHF band as they cut their analog signals . All full-power stations have now shut down their analog signals. Some low-power stations and rural relays known as "translators" are still broadcasting in analog.
Source : http://www.huffingtonpost.com/2009/06/17/digital-tv-transition-upd_n_216654.html
Even if you have been receiving an acceptable analog picture at your location, unless your digital signal level is above a certain threshhold, you'll either see no picture at all — or it will be "blocky" and unwatchable. You may need to employ an extra length of cable to get the needed positional flexibility. Use a simple coaxial "barrel" connector (available at electronics stores) to link the two cables, but don't use an extension that's longer than necessary; every foot of cable diminishes the signal strength.
You have an externatl antenna and dtv converter? Do you have a digital antenna. and if so where is it located. The Attic seems to be a good place for it. Out of the way and it can go through the plywood and shingles.
I know this is a lot to have thrown at you. But it is not an uncommon issue. The signal towers do not have full coverage. some places are better than others. Some people have a better horizon of reception and their dish is angle an inch in the right direction.
It is a shame, but you can get basic digital cable in some places for $30.00. Short of getting cable, this will be a problem.
I am sorry that this is probably not what you were hoping to hear, I know. I hope the information has helped you understand what is going on. If you have any other question on your question or my answer, please leave me a comment.. I will do my best to help you out...
Posted on Sep 14, 2009
I will try to answer to your question.
1. The video lags behind the sound up to a few seconds and happends inconsistantly across various stations.
Tis may be a reception problem, if reception is poor you may get this problem with both external receiver box or aerial connected directly internal tuner.
2. Occationally video catches up to the sound, but then the video will start a consistant split second freeze/skip (happens a lot on stong signal PBS channel, sound stays ok).
Same as above. Pixelation, green lines and picture freezing, splitting etc. are symptom of bad digital streaming signal. This can depend on reception. If reception is good, this looks more like a fault.
3. accross all channels the volume will Occationally decreses or fad and will return to the original volume if I switch to another station then back to the original station, Video Capture problem (DTV only): 4. Once in a while, I will loose the station, the TV skips ahead through all channels, but when I go back to the original staion, it is no longer there and is no longer a captured/scanned staion, I have to run the Auto or Manual Scan again.
If the TV is just losing signal, and channel is re-appearing after a while, then it is same problem as above. If the TV is loosing preset and channel settings in NVRAM, this is an additional problem concerning the digital tuner built inside your TV. If this happen using external tuner box, and it happens on single channel, then tuner box is faulty.
In conclusion, it looks like the Set is faulty. First two problems address either the AV signal board or the tuner board. Third problem , if this is happening when using no external receiver, can be caused by a faulty tuner board.
The fault you are describing is not common, and may be considered a factory defect. As a first step, better contacting manufacturer and asking if they can cover repair cost.
Here the parts. Since you did not give full model number, first call seller to ensure parts are the right ones for your unit.Parts are for L32HDTV10A. Parts must be tested before replacement:
TUNER BOARD 3320-0012-0187 VIZIO L32HDTV10A SIDE AV INPUT 3320-0062-0146 from VIZIO L32HDTV10A
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Posted on Sep 13, 2009
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Posted on Jan 02, 2017
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