My memorex MT2024 20" color TV works very well until one night when I turned it on, greenish color is all over the screen. There is a picture, I tried adjusting it on the menu but I can't get rid of it. Please help me. Joel
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Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
The tv needs degaussing (demagnetizing) unplugg the set tonight and then plug it and turn it on in the morning. You should hear a a "bonk" noise when the set is first turned on after being cold- this is the internal degausse circuit working and it should fix your problem if you don't hear the "bonk" sound or it does not fix your problem call arepair shop to have the degausse your set and possibly fix the internal degausse circuit.
If your lucky the degausser ckt will fix your rainbow in a few days. When the set is cold and on power up, the degausser works before the picture comes up(hum noise). Worst case, the shadow mask is messed up and it will never be right.