A technician must replace the integrated webcam in a user's laptop. Which of the following is the BEST first step the technician should perform before beginning any disassembly?
Power off the laptop, unplug the AC adapter, and remove the battery.
Enable airplane mode to disable all wireless radios before servicing.
Remove the bezel around the display to expose the webcam module.
Consult the manufacturer's service manual to locate screws and connectors.
Before touching internal components, the technician should eliminate all power sources by shutting the system down, unplugging the AC adapter, and removing the battery if it is user-removable. This reduces the risk of electrical damage or personal injury. Only after power is removed should the bezel be taken off to reach the webcam; other steps, such as referencing documentation or disabling wireless radios, are useful but come after ensuring the device is safe to service.
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Why is it necessary to remove all power sources before performing hardware repairs?
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What steps should a technician take if the laptop has a non-removable battery?
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Why is consulting the manufacturer’s service manual still important after removing power sources?