Safety Precautions - Dell D13U Service Manual

3. Turn off your device.
4. Remove the device from the stand:
Removing device from Fixed-height stand or Pro 1.0 Height-adjustable stand:
a. Slide the release latch on the stand until you hear a click to release the stand cover.
b. Slide and lift the back cover to release it from the stand.
c. Disconnect the keyboard, mouse, network, power, and display cable from the device.
d. Pull the retention latch that secures the device to the stand chassis.
e. Lift the device from the cover.
Removing device from offset VESA mount:
a. Disconnect the keyboard, mouse, network, power, and display cable from the device.
b. Push the quick release button on the VESA mount.
c. Slide and remove the monitor arm from the offset VESA mount (U/P-series monitor).
NOTE: For E-series monitor, remove the VESA cover.
d. Remove the four screws that secure the offset VESA mount to the monitor.
e. Remove the four holders on which the offset VESA mount is mounted.
f. Lift the offset VESA mount from the monitor.
g. Remove the four screws that secure the device to the offset VESA mount.
h. Lift the device away from the offset VESA mount.
Removing device from Pro 2.0 Height-adjustable stand:
a. Press the button on the side of the stand chassis, to release the stand cover.
b. Slide and lift the back cover to release it from the stand.
c. Disconnect the keyboard, mouse, network, power, and display cable from the device.
d. Slide and release the inner bar on the lower edge of the stand cover that secures the device to the stand chassis.
e. Slide and remove the device from the cover.
f. Slide the inner bar back to the lower edge of the stand cover.
Removing device on Wall Mount:
a. For full function wall mount:
i. Unlock the wall mount module.
ii. Open the wall mount cover.
iii. Disconnect the keyboard, mouse, network, power, and display cable from the device.
iv. Snap open the wall mount bracket module from the slots on the wall mount.
v. Remove the four screws that secure the device to the wall mount bracket.
vi. Lift the device away from the wall mount bracket.
b. For simple function wall mount:
i. Unmount the wall mount bracket module from the wall.
ii. Disconnect the keyboard, mouse, network, power adapter, and display cable from the device.
iii. Remove the four screws that secure the device to the wall mount bracket.
iv. Lift the device away from the wall mount bracket.
5. Press and hold the power button while the device is unplugged to ground the system board.
NOTE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an
unpainted metal surface at the same time as touching a connector on the back of the computer.

Safety precautions

The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or
reassembly:
● Turn off the system and all attached peripherals.
● Disconnect the system and all attached peripherals from AC power.
● Disconnect all network cables, telephone, and telecommunications lines from the system.
● Use an ESD field service kit when working inside any desktop to avoid electrostatic discharge (ESD) damage.
6 Working on your computer