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Question 390 - 220-1101 discussion

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A technician is preparing a redesigned conference room for a presentation. The presenter connects a laptop to the LCD projector, but a "No input source" error message is displayed on the LCD projector's screen. However, the presentation is working on the laptop's LCD screen when in mirroring mode on the docking station. Which of the following troubleshooting steps should the technician take first?

A.
Replace the LCD projector.
Answers
A.
Replace the LCD projector.
B.
Reboot the laptop.
Answers
B.
Reboot the laptop.
C.
Update the display drivers.
Answers
C.
Update the display drivers.
D.
Check the physical cabling.
Answers
D.
Check the physical cabling.
Suggested answer: D

Explanation:

One of the possible causes of the error message "No input source" is that the LCD projector is not receiving any signal from the connected device, such as a laptop1. This could be due to a loose or faulty cable or connector, or an incorrect input source selected on the projector2. Therefore, the first troubleshooting step that the technician should take is to check the physical cabling and make sure it is properly connected and secured12.

asked 02/10/2024
Matthew Hillson
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