Lenovo C440 User Guide - Page 36

Replacing hardware, General information, Removing the stand base - support powers off

Page 36 highlights

Replacing hardware Attention: Do not remove the computer cover or attempt any repairs before reading the "Important safety information" in the Safety and Warranty Guide that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety and Warranty Guide or HMM, go to the Support Web site at: http://support.lenovo.com Note: Use only parts provided by Lenovo. General information Pre-disassembly instructions Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug all power and signal cables from the computer. 3. Place the system on a flat, stable surface. Removing the stand base Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage. 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices. 2. Unplug all power cords from electrical outlets. 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 "Left and right views" and "Rear view" for help with locating the various connectors. User Guide 31

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31
User Guide
Replacing hardware
Attention:
Do not remove the computer cover or attempt any repairs
before reading the “Important safety information” in the
Safety and
Warranty Guide
that was included with your computer or in the
Hardware
Maintenance Manual
(HMM) for the computer. To obtain copies of the
Safety and Warranty Guide
or
HMM
, go to the Support Web site at:
Note:
Use only parts provided by Lenovo.
General information
Pre-disassembly instructions
Before proceeding with the disassembly procedure, make sure that you do the
following:
1.
Turn off the power to the system and all peripherals.
2.
Unplug all power and signal cables from the computer.
3. Place the system on a flat, stable surface.
Removing the stand base
Attention:
Turn off the computer and wait 3 to 5 minutes to let it cool
down before removing the cover.
Note:
It may be helpful to place the computer face-down on a soft flat
surface for this procedure. Lenovo recommends that you use a blanket,
towel, or other soft cloth to protect the touch screen from scratches or
other damage.
1.
Remove any media (disks, CDs, or memory cards) from the drives, shut down
the operating system, and turn off the computer and all attached devices.
2. Unplug all power cords from electrical outlets.
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 “Left and right views” and “Rear view” for help with locating
the various connectors.