Dell U2421E User Manual

DELL U2421E
1
Use a Philips-head screwdriver to remove 4pcs
screws for unlocking mechanisms. Remove DP cap.
(No.1~4 screw size=M4x11; Torque=11±1kgfxcm)
Take out all accessories including label(optinal), QSG,
Delta-E paper, DP cable, USB C to C cable(Type-C
cable), USB A to C cable(USB cable), power cable
and other packing materials from the carton. (Note: It
depends on whether users returning the accessories)
S2
Open the carton with a proper tool.
1. Disassembly Procedures:
S1
Take out the monitor from EPE-bag and put the LCD
monitor on a protective cushion.
Take out the base and molded plup from the carton,
then take out the monitor and stand from the carton.
S3
S4
S5
Monitor
stand
base
Wedge your fingers between rear cover and the
middle bezel on the corners of the top side of the
monitor to release the rear cover, then use one hand
to press the middle bezel, the other hand to pull up
carefully the rear cover in order of arrow preference
for unlocking mechanisms of rear cover.
S6
S7
3
2
1
2
Lift the rear cover up carefully. Disconnect the
joystick key cable from the connector of the interface
board, and then remove the rear cover and put it
aside for later diasassembling.
Use a Philips-head screwdriver to remove 2pcs
screw for unlocking the key board, then tear off the
tapes and release the key board.
(No.1~2 screw size=M2x2.4, Torque=0.8~1kgfxcm)
S8
1
2
2
3
4
1
Delta_E paper
QSG
USB C to C cable
DP cable
power cable
USB A to C cable

Dell U2421E Specifications

General

Screen Size	24 inches
Resolution	1920 x 1200 (WUXGA)
Panel Type	IPS
Aspect Ratio	16:10
Refresh Rate	60 Hz
Brightness	350 cd/m²
Contrast Ratio	1000:1
Color Support	16.7 million colors
VESA Mount	100 x 100 mm
Response Time	5 ms (gray to gray)
Connectivity	HDMI, DisplayPort, USB-C, USB Hub
Color Gamut	99% sRGB
Viewing Angle	178° (horizontal), 178° (vertical)
Weight (with stand)	5.6 kg

Summary

Disassembly Procedures

Carton Opening and Accessory Removal

Open the carton and extract all accessories, including cables and manuals.

Monitor and Stand Extraction

Remove the base, molded plug, monitor, and stand from the carton.

Rear Cover Removal

Use a screwdriver to remove screws and wedge fingers to release the rear cover.

Disconnect Cables and Open Rear Cover

Lift the rear cover, disconnect joystick key cable, and remove rear cover.

Product Material Information

Tools Required for Disassembly