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Tv screen went white but can still see picture

Tv screen went white I can still see picture, but its as if the brightness is turned way up, even if I turn it all the way down

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There is a defect in the video output circuit which feeds the signals to the picture tube. Unless you are technically inclined and adept at desoldering and part replacement this is a job for a technician. Often the video output i.c. fails and on some brands a resistor can open and cause this symptom also. One other possibility, with some TVs however, is that someone turned up the screen control. This control is accessible on some units through the back cover and is a service adjustment. Some units even had the control shaft projecting through the cover. If the screen control is there it usually is labeled along with the focus control. Adjust it until you get normal brightness. If this is not an option or it does not help you will need that technician.

Posted on Nov 17, 2009

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I hooked up my cable box up to my sceptre tv and it had sounds but the picture is black and white I even went and bought the blue and green cords but still only black and white


With the blue/green/red cords (Component) you need to get a very good bright light on the connectors so you get the plugged into the correct COMPONENT connectors on the TV. Note, there are white and red AUDIO plugs right near the COMPONENT input so you need to be VERY careful. If you get it wrong, the colors on screen are often off and even black&white.

How is your cable box connected to the TV? Screw on "COAXIAL", Yellow, Red, White "RCA", single flat connector "HDMI" or 5 colored plugs 2 X Red, 1 X White, 1 X Blue, 1 X Green "COMPONENT"

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Hi. It seems that the g2 voltage of the picture tube is too high, resulting in a white screen, often with white horizontal lines. The g2 (= second grid) voltage is derived from the flyback high voltage. The voltage divider is mostly integrated in the flyback trafo housing.(including the adjustment knobs). A failure in this divider may lead to this defect. The static you hear may come from sparking in the divider. The flyback trafo is soldered onto the main printed cirrcuit board. Sometimes, one of the pins sits loose in the soldering pads.
Turn on the set and observe for any sparking around the entire flyback circuitry, and, or the flyback trafo itself
The screen turns black after a while, as a too high beamcurrent is detected. The set disables the flyback. Stand-by blinks meaning that there is a fault condition.
Be carefull with the high voltages. The flyback voltage is very high (20-30 Kilovolts !) and may be lethal !!

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I have owned an emerson tv for two years now. All of a sudden the picture has become very blurry and white. It is not the cable connection and a DVD is also white and blurry. Even the input channels are...


you must open the back cover of tv, and then things you should do is set "SCREEN" adjustment on the flyback transformer. you must turn it counterclockwise to reduce and decrease the level of screen brightness. turn screen adjustment gradually until the horizontal blanking lines disappear from the screen. and blurred images will be sharp again

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Howdy;
Since you don't have any white lines with the red screen/picture I would say that the red bulb (CRT) is conducting too much. There is an adjustment control for that. The 'sceen' control is behind the speaker cover and service cover. Turn red screen control slightly to the left until you get a good black and white picture.

Good Luck, Big Irish.

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Jar-Head, bad news, the picture tube has a mild short in the green cathode, tech can come out and try to restore it but it`s usually a futile attempt on sony tubes, sorry to be the bearer of bad news, BMW Rider

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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.

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if the screen is real bright green with thin small white lines in it its probably a shorted picture tube. Or a shorted Green driver Transistor. Good Luck

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