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Do you have speakers next to your tv sometimes the line on your tv will be from your sound to close to your tv also the red line could mean your tv tube is going out there about 300 to replace but i ould check frist on your sound are something close to you tv that is maken the red line in the middle of your tv
Most likely there are electrolytic capacitors in the power supply, video path, and scan amplifiers that are starting to fail from age. This is common in many of these sets. In consideration of the age of the set, this may not be worth having it serviced.
Hello, You need to adjust (actually bit decrease) G2 volts (calls Screen volts) of Blue gun. If you are familiar with big TV repair and have electronics knowledge then let me know to guide you further. thank you.
You have actually diagnosed your own problem, Let me explain; the line "I can slap the left side of the tv and picture will almost always come back on" This indicate some form of poor connection (cold solder joint). If you have a soldering iron, solder (circuit type not pipe type), and a multimeter. Use the soldering iron and solder to redo the cold solder joints , and then test it (the connection) with the multimeter.
Click here to find information on how to fix your TV. Make sure that you turn the screen control slightly counterclockwise until you see the lines disappear.
I would suggest to put a mark where the original position is, just in case you have to go back to the default position.