I plugged the cable wire

Well, first to trouble shoot the easy parts

Try a different cable, and also try a different tv at that spot with that cable and see if either fixes the problem. If not then either the signal is bad or you most likely have a part in the tv needing replacement which requires more troubleshooting

Please post the results of the two tests first

Benjamin

I don't know how this happened from what you've described but it sounds like the purity of the CRT (picture tube) has been affected by a magnetic field. The purity refers to the CRT's ability to light the correct phosphur dot at the right time. So, for example, if the picture was supposed to be all red, it would now have areas where the red dots were either not lit or the green and blue dots were being lit erroneously. Try disconnecting the cable from the TV. Unplug the TV and allow the set to cool down. When the TV has cooled down, plug it back in. When you turn it on, you'll hear the buzz of the TV's degausser circuit. ( de-magnetizer) This may return the picture to normal.

michtech

Hi

Is there a cordless phone or a high voltage electrical device near the TV.If there is you need to remove that and plug it elsewhere.

ple can briefly ur dought