shawn sounds like your backlight has failed. Most common cause for that are bad capacitors. Your monitor does not have a separate inverter but it is part of the power board. Start by disassembling the monitor and take a look at the boards and the caps. Check for bulging or leaking caps. Post some good images of your boards with your original question. For that use this guide. Since I only have the assembly instructions, substitute the assemble with disassemble