Screen went black but has sound

Screen went black but has sound

Can also see words when room is dark and shine a light on it. What part do I need to repair it?

ANSWERS:

@ssnee07 from your description it appears as if your backlight is not working. Could be the power board, the LCD or the inverter circuitry. Most common failure would be the LED driver board. Available at places like this and many others for around $40USD