Black screen,no picture just a sound.not even menu bar displays
There is no picture,black screen all the time but power is on.if connected to xbox36 there is sound and u can cotrol it but not even menu displays.sometimes if is on for long is just screen flashing blue and then it goes off to stand by mode.whatta hell???
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Sounds like you have a backlight problem. To verify this, turn on the set, dim the lights in the room, and shine a bright flashlight on the screen. If you see a faint picture you have a backlight fault. It could be as simple as a bad capacitor in the power supply, or a faulty inverter board, or in rare cases a bad backlamp.
It sounds like your backlighting is working, but the lcd screen itself is not. This problem is usually due to a faulty power supply, but in your case it might have to do with the screen itself and its connection to to the circuit board. To narrow down the possibilities, search the monitor's model number with the symptoms. If the supply is bad, you can replace it yourself or send it to a repair center. Best of luck!
Does the lcd screen have a glow to it ? Or is it really dim if u get real close to screen u can see images moving ?
it it has a glow to it you panel lighting is fine but you control board is bad. If you have a dark screen and see faint images you panel back lighting is out u can check the power with a meter at the connection to inverter board on panel.