What is a common symptom indicating that the Inverter Board may need to be checked in an LCD issue?

A black screen is a common symptom that indicates the inverter board may need to be checked during an LCD issue because the inverter is responsible for supplying the necessary voltage to the LCD screen's backlight. When the inverter board fails or malfunctions, it can result in the backlight not functioning properly, leading to a scenario where the display might appear completely dark, even though the computer is powered on. In contrast, other symptoms like color distortion usually point to different issues involving the display panel itself or the graphics hardware, while poor audio quality and random software crashes relate to the sound system and software operations, making them irrelevant in diagnosing LCD-specific problems.