Could be many issues. Take a flashlight and hold it right against the screen. Can you see a picture? if so the lcd is working but the backlights are not. If that is the case you could have bad power supply caps on the 24 volt section, a bad inverter board, or a bad ccfl lamp itself inside the back of the screen
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Could be many issues. Take a flashlight and hold it right against the screen. Can you see a picture? if so the lcd is working but the backlights are not. If that is the case you could have bad power supply caps on the 24 volt section, a bad inverter board, or a bad ccfl lamp itself inside the back of the screen