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Does it do that with every channel? If so then it is the controller board of the cable itself. Try a different connection method. Your lamp is fine. Or it could be your y board. Don't know cost for sure seeing that there is no exact solution yet.
U get a channel numder and menu screen do show up?Not the tv,it the incomming broadcasting signal cable plug in or the cable box itself have problems.Tries unplug,replug the tv and the cable box back in like about an hour later.The tv will reset itself to the factory setting and the cable box should upgraded it softwares.Should work now.If have the same problems,tell the cable company change the cable box or check the incomming broadcasting cable wire with another tv,see the incomming broadcasting signal cable wire,with a new cable box,see if it work.
call the cable company most cable boxes have the closed captioning feature in them and if they reset the box it will turn it off. try turning the cable box off with the tv still on then press the menu button on cable box remote( with box still off) a menu should pop up on tv screen and look at the closed caption selection if off turn on.
Unfortunately, that coax connector is almost certainly crimped onto a cable inside.
You might want to pull off the back panel to see if that internal cable is screwed onto another jack on the chassis.
If so, you can disconnect that end and substitute another cable, they come in several different lengths and are not critical.
Any electronics store will have them.
If it isn't equipped with a connector inside, you will need to have someone unsolder the defective cable and install a new one.
This could be one of two problems, either the TV tuner card is set up to accept the wrong type of signals (which normally can be changed in the menu of the television) or the card isn't capable of translating the signal (with most cable companies going over to digital signals with their boxes translating the signals over.) My suggestion is to check to make sure the proper signal type is set in your menu (if in fact this is even an option for this particular television) and if that doesn't work get a generic analog digital cable box.
First of all, is your blue "HD" light lit up on the front of your Uverse box?
If yes, then you're in HD
If No, you need to check your connections from Box to TV
1.Those Red-Blue-Green cables are for video only, they don't carry sound and shouldn't be connected to audio outs. Audio needs a seperate cable. Make sure your Red isn't on the audio out which is also red. Make sure your blue and green aren't switched with each other either. Check that at both ends.
2. Try an HDMI cable. It will carry audio and video together and it's one cord instead of 5.
3. What brand/model of TV is it? Is it an older projection TV? The HD tuner might be shot. The individual color tubes commonly fail after a few years.
4. Are you selecting 720p or 1080i from your TV's menu or from the Uverse menu? You'll need to set it through the Uverse box, not the TV.
5.Follow -Menu -Settings -Aspect Ratio to change to 720 or 1080. This should start an autotest which will scramble your picture for about 5 seconds, then bring you back to a menu asking you to keep settings or revert back settings. If you never see that question pop up, then your TV isn't supporting the HD, and you settings will be rolled back automatically. If the question does pop up and you can read it, select "keep settings" and press OK. Your blue HD light should come on the front of the box now.
Sounds like the signal board may have a problemn OR If the signal to the set is low it could lose color burst. If you are using a cable box .. try removing it and hook the cable direct to the TV and see if any change. If the set works ok without the cable box that box may be the problem.
Your set uses the 195 series chassis and you have something set wrong in your guide plus. Go into the TV's menu and do a complete set-up. Take the remote and press MENU, then "8" to enter setup, then press "1" for "begin setup now" and then press "1" for English, and so on. You must enter "set up guide plus+", then press OK on the remote to choose "setup", select "USA", enter your zip code, and then if you choose "yes" for "do you have cable?" you MUST then choose "no" for "do you have a cable box" If you choose "yes" for that choice, your tuner will lock on one channel no matter what channel you try entering. After choosing "no" for "do you have a cable box", choose "no" for "do you have a VCR?", exit the guide plus menu and then skip the rest of the steps by pressing "2", and then exit the main menu by pressing "0". Your channels will then work normally.