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CompTIA

220-1101 · Question #507

A user has been having issues charging a laptop after turning it on and has noticed the laptop screen is dim. Which of the following components most likely needs to be replaced?

The correct answer is D. Inverter. An inverter is a component that converts DC power to AC power for the backlight of an LCD (liquid crystal display) screen. If the inverter is faulty, the screen may appear dim or dark, even if the brightness settings are adjusted. Replacing the inverter may fix the issue. The LCD

Hardware and network troubleshooting

Question

A user has been having issues charging a laptop after turning it on and has noticed the laptop screen is dim. Which of the following components most likely needs to be replaced?

Options

  • ALCD
  • BVideo card
  • CDigitizer
  • DInverter

How the community answered

(42 responses)
  • A
    12% (5)
  • B
    7% (3)
  • C
    2% (1)
  • D
    79% (33)

Explanation

An inverter is a component that converts DC power to AC power for the backlight of an LCD (liquid crystal display) screen. If the inverter is faulty, the screen may appear dim or dark, even if the brightness settings are adjusted. Replacing the inverter may fix the issue. The LCD itself, the video card, and the digitizer are not related to the screen brightness problem.

Topics

#Laptop troubleshooting#Display components#Backlight inverter#Power issues

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