CompTIA A+ Core 1 (220-1101) — Question 297

A classroom projector, which is turned on, displays a flashing LED code but does not have any video output. Which of the following should a technician do to resolve the issue?

Answer options

• A. Replace the bulb.
• B. Adjust the input resolution.
• C. Clean the air filter.
• D. Change the input source.

Correct answer: A

Explanation

Replacing the bulb is the correct answer because a flashing LED often indicates a bulb issue, which can prevent video output. Adjusting the input resolution, cleaning the air filter, or changing the input source are less likely to address a situation where the LED is flashing, as these options pertain to different types of problems.