CompTIA A+ Core 1 (220-1001) — Question 397

A customer's laptop display has suddenly become very dim. The image of the display can only be seen with a bright, external light, as adjusting the brightness/ contrast controls does not cause much change.
Which of the following components MOST likely needs to be replaced?

Answer options

• A. LCD panel
• B. Inverter
• C. Video card
• D. Digitizer

Correct answer: B

Explanation

The inverter is responsible for powering the backlight of the LCD panel, and a failure in this component can lead to a dim display. The LCD panel itself may still be functional but not illuminated properly without a working inverter. The video card and digitizer are less likely causes for a dim display, as they don't directly affect backlight functionality.