Sharp LC-55LE643U - bottom 3/4 of my LCD TV is shadowed and purplish. How do I fix it?

SOURCE: LCD picture distortion.

This is caused by a failure of the main board. The failure causes the refresh rate of the unit to be off creating a trailing or ghost effect. This will require a technician to replace that board though. Hope this help.

SOURCE: dark shadow on lcd tv

u need to replace the tv backlight. it can be done by urself but its kinda complicated its better to just tak eit in to a repair man. shouldnt be that costly.

SOURCE: Symphonic 32'' lcd tv has shadow on right side of screen

The "shadow" indicates a failure either of the LCD controller, LCD connector, or in the worst case, the LCD itself. A loose connection between the LCD and the LCD controller can result in abnormal displays. Try tapping the back of the TV and check if the shadow can be affected. If it is affected, try cleaning the connector terminals with a soft-bristle brush and alcohol or lacquer thinner. If not, have it checked by a qualified technician to carry out the proper tests to determine which of the LCD controller or LCD the problem lies.

Testimonial: "I guess I need to remove the back of the tv for the lcd connectors, which I don't mind doing, but is it worth paying a tech as this tv is 3 yo. thx."

SOURCE: I was watching Tv and the picture starting from

You need to replace backlight inverter.

Thanks

The Knight

• 76851 Answers
• Posted on Feb 25, 2013

SOURCE: I have a vizio sv470xvt1a while watching tv the screen went black, then picture came back on, a few minutes later it went black again.. No popping noise when it went black. screen is still black...ha

Check and replace the back-light inverter baord.