AMC ( channel 57) will not show up on my TV. There is only ''snow'' and a weird noise. I have a relatively old TV, and i would like to fix it quickly, for a movie is coming on shortly and I would love to watch it.
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First check cable wire or whatever is connected to set for channels--the leads are connected and wiggle them with set on to see if it clears up--could be a connection where cable wire is connected at end--loose connection there etc.
If tuner is bad causing this and you use a box for signal--most have rear audio/video outputs you can connect to a unused video/audio input on rear of set---bypass the tuner in the set and operate set that way changing channels on box instead of set.
let me know if you have questions or have more information.
Have you tested it with auto tuning progremme process. If it snow there, your TV may be working properly. Sometimes its signal input path is not Ok. Without any signal, all TVs may show either snow, or a plane blue raster if its blue back function is on. You just do the automatic tuning process once again after connecting it with an external or internal antenna. There is a socket provided there in the back side of your TV, and marked as VHF/UHF. Connect the signal source to it first.
And set your TV to autotune by slecting it from the menu of your TV. The TV will search for all the channels available at that time, and after searching is completed, it will stop and show the first channel received. Afterwards you can chage or delete or skip unwanted channels. You may have its manual with you. All the descriptions are there in that manual. Ok.
Sounds like U have an antenna or feeder problem. Get it checked out/ check it out. If in a strong signal area, try a simple indoor antenna for comparison. If in a marginal reception area, it could be your antenna is inadequate.
In most cases when you set your menu ("tuner section") to cable, the tv will pick up all channels, but if you set it to "off air" or "antenna" (or whatever the other choice is labeled), then the tv will only go up to about channel 50 or 60. Are you using cable, dish, or an antenna on top of your house. If using cable or dish, then go into the menu on your tv and set the tuner to "cable". I am pretty certain that your tuner is NOT currently set on "cable" and that also there are no local "off air" channels in your area on 2 thru 6, therefore, you see snow on these channels. I have repaired hundreds of tv's and I feel very strongly that your problem is in your menu.
Check the tuner input mode it has (air, cable,hrc,irc) with new stations updating to HDTV the demodulation at the tv sometimes looses the color burst sync. I have seen this with more and more tv's with pip tuners , it resets to the default of air ( rabbit ears ) at 75ohms and the low band snow, when you go to the high band (56+) it finds the color sync and resets the vestigial sideband offset, it happens more often if the SAP or CC is also trying to aquire the proper offset. good luck.
The problem you're describing sounds like a tuner problem. BUT you say that you have the
same problem with A-V input too. That's weird!!!
Possibly the electronic TV-AV switching circuit is messed up and stuck in the TV (tuner) position. If this is the case you DO have a tuner problem and a switching problem too.