This might be brought on by two common issues: inverter failure or backlight failure
. An inverter ailments energy with the LCD, and commonly resides near towards mobile computer hinges below the liquid crystal display case. Inverters are unsafe mainly because they commonly operate in between 4-7 amps of current. 1 amp can very easily kill you, so don't mess with these if you're not experienced with it. when the keep track of is actually bright, odds are your inverter is okay. Backlights are complicated and unsafe to replace, so don't attempt unless you understand how. Most backlights are delicate and include mercury, a carcinogen.