Most LCD TVs that are three years old or older that have the "sound but no picture issue" have experienced a failure of the LCD backlight circuit. Older units were fluorescent bulbs that used an inverter (ballast) to produce the light that shines through the LCD and allows you to see the image. These inverters fail after 3-5 years of use.
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Most LCD TVs that are three years old or older that have the "sound but no picture issue" have experienced a failure of the LCD backlight circuit. Older units were fluorescent bulbs that used an inverter (ballast) to produce the light that shines through the LCD and allows you to see the image. These inverters fail after 3-5 years of use.