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CompTIA 220-802 Certification Practice Test

Category - 802

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A customer calls to complain their laptop screen is excessively dim; she can barely see the screen. The screen was fine yesterday. What are the possible issues and solutions? Choose all that apply.
  1. The screen inverter is failing and needs to be replaced.
  2. The laptop is on battery power and is making the screen dimmer; plug the laptop into a wall socket.
  3. The screen dimmer controls need to be adjusted.
  4. The screen is failing and needs to be replaced.
Explanation
Answer: A, C, and D - A failing screen inverter or dying screen pixels can generate an unusually dark screen. Also, a simple adjustment to screen dimmer controls could be the solution.
Key Takeaway: The laptop screen inverter supplies power to the screen backlight and would darken the screen if it is failing. Another common laptop LCD screen issue is the integrated video card could be failing.
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