The problem I'm having is the top of the screen has a really bright line about 1 inch thick and the bottom of the screen is black about 2 inches thick. This doesn't happen all the time but it is happening now and the last time it went on for about a mont and quit. This time it is worse and the picture will jump and squeeze together. To get it to stop I unplug the tv and let it "cool off" and it is ok for about an hour. I have had the tv for 4 1/2 yrs and I have always bought RCAs. I have 2 more at home that are older and have never had problems with any of them. Thanks for any information on what the problem is or a solution. Stacey Stowe please email me at firstname.lastname@example.org
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Set the brightness, contrast and colour control of that TV to minimum. Watch it in a dark room whether ther are thin white lines across the screen, at about an inch apart, from bottom to top of the screen. If there are lines, that TV needs screen control adjustments. That is, now the screen voltage given to the picture tube went high to some reasons. If you have confidence that you can adjust it, I will guide you.
Open the back cover of that TV. Locate the LOT [Line output Transformer], usually one red thick wire is connected to the top of the picture tube with the help of a rubber ****** and clip. In most TVs it can be located and can be seen as the back cover opened. There are two variable control, fitted, integrated to LOT. Normally the upper one is marked as focus, and the lower one is marked as screen. You shoud adjust this control to avoid these lines.
It is a live service, that is the TV must be switched on during this time, and take causion in every respect not hurt by yoursef and the TV. Keep the children away from you, and an other adult person beside you is better. A liitle turn counterclockwise will remove this problem.
If you feel good about opening your set then you can try this: Look for the flyback (high voltage) transformer, with the thick red wire which goes to the top of the picture tube. There are 2 controls on the flyback transformer, focus (top) and screen (bottom)Turn the brightness and contrast all the way down and then increase the screen control until you see retrace lines, and then back it down until those lines just vanish. Return the brightness and contrast to normal and adjust the focus control, if necessary, for a nice sharp picture. Let me know if that brings your brightness back.
When you have the back off, look for the flyback (high voltage) transformer. This is the part that has the thick red wire protruding from its top which attaches to the top of the picture tube with a suction cup. On the flyback there are 2 controls, the bottom one is screen and the top one is focus. Turn the bottom control (screen) down (counterclockwise) until the white lines go away and the brightness looks normal. Then turn the top control (focus) until the picture is nice and sharp. If the F connector has been pulled out and the TV has RCA (red, white, yellow) jacks, use those jacks and set the TV to INPUT.
The 20F530T uses the relatively newer ITC008 chassis. If the picture collapses down and only a small bright line is visible, it means that your vertical output IC has stopped working correctly. This could be due to a defective IC, cracked solder joints on the IC or the power supply that feeds it. The IC should be replaced or resoldered and/or the vertical power supply restored by an experienced tech familiar with the new line of RCA TV's.
This RCA set uses the CTC187BD chassis. Look on the back of the set and to the right of the cable connector you will see 2 controls sticking out, one on top of the other. The top control is for focus and the bottom one is screen, or overall brightness. If these controls have been turned clockwise then you will have a bright, fuzzy picture with white lines (retrace lines) through it. Tune in a channel with white letters on the screen and turn the top (focus) control until the letters are crisp and sharp. Go into the menu and turn the contrast and brightness all the way down, and then turn the bottom control (screen) until you can just see the picture, just above the point where the picture is too dark to see. Go back into the menu and reset the contrast and brightness and the picture will be back to perfect.
YOUR tv DEVELOP a problem in the video ocillator or the tunner section have this set check by a qualified tech.to solve your problem good luck.any more contact email@example.com i hope by now you have gotten your set fixed the repairs will cost you about between $50.00.to $200.00 good luck.