If the inverter board is faulty, what is likely the result?

When the inverter board in a laptop or monitor is faulty, the most likely result is a lack of backlight on the display. The inverter board is responsible for converting the battery's low voltage to the higher voltage needed to power the fluorescent lamps that backlight the LCD screen. When this part fails, the screen may not illuminate properly, leading to visibility issues even though the device itself might still be operating.

In many cases, the display may appear completely dark or only show faint images if there are other underlying issues, but the critical factor is that the backlight will not function correctly. Thus, while other parts like the system itself may still be powered, the absence of a functioning backlight directly correlates with a faulty inverter board, confirming that no light will be present on the screen.