Lenovo 90H9, Руководство по техническому обслуживанию аппаратной части

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a. Line up the new dust screen with the chassis and push the screen
into position.
Replacing the keyboard and mouse
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Removing the computer cover
Attention:
• Turn off the computer and wait 3 to 5 minutes to let it cool down before
removing the cover.
• For this procedure, it helps to lay the computer on a flat, stable surface.
To remove the computer cover:
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut
down the computer, and turn off all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power
cords, input/output (I/O) cables, and any other cables that are connected
to the computer. Refer to “Locating connectors on the rear of the
computer”.
Step 4. Slide the computer cover lock to unlock position, a then press the cover
open button, computer cover will spring open. b c .
Chapter 8. Replacing hardware
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