Dell C3422WE User manual

1 DELL C3422WE
Use a Philips-head screwdriver to remove 4pcs
screws for unlocking rear cover.
(No.1~4 screw size=M4x11; Torque=11±1kgfxcm)
Take out all accessories including label(optinal), QSG,
DP cable, USB Type-C cable, USB Type-A to Type-B
upstream cable, power cable, manual 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 stand, base and paper top from the
carton, then take out the monitor from the carton.
S3
S4
S5
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 and two USB cables from the
connectors of the board, and then remove the rear
cover and put it aside for later disassembling.
Use a Philips-head screwdriver to remove 1pcs screw
for unlocking the USB board, then tear off all the tapes
and release the Usb power cable and joystick cable.
(No.1 screw size=M3x6, Torque=4±0.5kgfxcm)
S8
23
41
QSG
USB Type-C cable
DP cable
power cable
manual
USB Type-A to Type-B cable
1

2
DELL C3422WE
Use a Philips-head screwdriver to remove 2pcs
screws for unlocking the joystick board, then release
the Joystick board from the hook of the rear cover.
(No.1~2 screw size=M2x2.4, Torque=0.8~1kgfxcm)
S9
2
1
Tear off 1pcs acetate tapes and 1pcs aluminum foils
and 3pcs conductive tapes for releasing the cables.
Disconnect the panel lamp cable, LED cable, touch
cable, camera connective cable and speakers’ cable
from the connectors of the board, then release the
panel lamp cables from the hooks of the middle bezel.
Use a Philips-head screwdriver to remove 4pcs
screws for unlocking bracket with panel, to remove
one screw for unlocking the heat-sink.
(No.1~5 screw size=M3x3, Torque=5±0.5 kgfxcm)
S12
S10
3
5
1
Use a Philips-head screwdriver to remove 4pcs
screws for unlocking the speakers with middle bezel,
then release the speakers’ cable from the hooks of
the middle bezel, and then release the two speakers
from the probers of the middle bezel.
(No.1~4 screw size=M3x6, Torque=4±0.5 kgfxcm)
3
1
24
Lift up the bracket chassis module and tear off the
1pcs acetate tape, then disconnect the EDP cable
away from the connector of the panel module, then
put the bracket chassis module on a cushion.
S13
Disconnect the camera cable from away the camera
board, then use a Philips-head screwdriver to
remove one screw for unlocking camera board with
the camera module.
(No.1 screw size=M3x3, Torque=5±0.5 kgfxcm)
S11
24
5
S14

3DELL C3422WE
Release the touch board from the middle bezel by
tearing off the tape, and then
middle bezel and put it on a cushion foam.
lift up the LED cable by
tearing off 3pcs tapes on the back of cable. Take
away the
Tear off tapes for releasing the camera connective
cable, then use a Philips-head screwdriver to
remove 4pcs screws for unlocking the camera
module, and then remove assembled camera unit
and put it aside for later disassembling.
(No.1~4 Screw size= M3x4, Torque=3.5±0.5kgfxcm)
S15
Tear off the camera glass and tape of the camera
connective cable, then use a Philips-head screwdriver
to remove 3pcs screws for unlocking the rear cover
with front cover. Remove the rear cover, and then tear
off the conductive foam and tape for release the cable,
then tear off the camera from the front cover.
(No.1~3 screw size=M3x5, Torque=3±0.5kgfxcm)
S16
1
3
Use a Philips-head screwdriver to remove 20pcs
screws for unlocking the middle bezel unit with the
panel module.
(No.1~20 screw size=M3x4, Torque=5±0.5kgfxcm)
S17
S18
Put the middle bezel with LED board into a fixture,
then tear off the mylar tape for releasing the LED
board.
S19
4
1
2
3
8
16
15
10 12
3
7
2
911 1
17
13
14
6518 19 20
4
2

4
DELL C3422WE
Remove the power board and interface board from
the
disconnect all of the cables.
bracket chassis module carefully, and then
Remove the Mylar tape from the brackets by tearing
off the tape, then use a Philips-head screwdriver to
remove screws for interface board and power
board.
7pcs
(No.1 screw size=M4x8, Torque=7±1kgfxcm;
No.2~7 screw size=M3x7.5, Torque=7±1kgfxcm)
S20
S21
16
5
3
4
2
7

5DELL C3422WE
Remove electrolyte capacitors (red mark) from
printed circuit boards.
S22
S22-1 Cut the glue between bulk cap. and PCB with a knife.
S22-2 Ensure cutting path within the glue, don’t touch bulk
cap. or PCB.
S22-4 Take out bulk cap. pin solder with soldering iron and
absorber.
S22-5 Lift the bulk cap. up and away from the PCB.
S22-3 Cut into the bottom of bulk cap. and pullit up
carefully.

6
DELL C3422WE
The following substances, preparations, or components should be disposed of or
recovered separately from other WEEE in compliance with Article 4 of EU Council
Directive 75/442/EEC.
Capacitors / condensers (containing
PCB/PCT)
No used
Mercury containing components
No used
Batteries
No used
Printed circuit boards (with a surface
greater than 10 square cm)
Product has printed circuit boards (with a
surface greater than 10 square cm)
Component contain toner, ink and
liquids
No used
Plastic containing BFR
No used
Component and waste contain
asbestos
No used
CRT
No used
Component contain CFC, HCFC, HFC
and HC
No used
Gas discharge lamps
No used
LCD display > 100 cm2
Product has an LCD greater than 100 cm2
External electric cable
Product has external cables
Component contain refractory
ceramic fibers
No used
Component contain radio-active
substances
No used
Electrolyte capacitors (height
> 25mm, diameter > 25mm)
Product has electrolyte capacitors (height >
25mm, diameter > 25mm)
3. Tools Required
List the type and size of the tools that would typically can be used to disassemble the
product to a point where components and materials requiring selective treatment
can be removed.
Tool Description:
- Screwdriver (Phillip head) #1
- Screwdriver (Phillip head) #2
- Penknife
- Soldering iron and absorber
2. Product material information