DELL U2422HEB
1
1. Disassembly Procedures
Pull out CTRL BD FFC from I/F BD and
tear off it from Main SHD to take off
Rear Cover
S1
S4
Turn off power
To remove the stand
S2
Place the monitor on a soft cloth or
cushion
Press and hold the stand release button
Lift the stand up and away from the
monitor
Tear off a tape from CTRL BD FFC and
Rear Cover
S5
Unlock screw*3 to disassemble CTRL
BD from Rear Cover
Unlock 4 screws on Rear Cover
S3
Use hands or scraper bar to
disassemble Rear Cover from monitor
Notice the disassembly order:
Top Side=>Right/ Left Side=>Bottom
Side
(Screw Torque: 0.9-1.0Kgf)
(Screw Torque: 8-10Kgf)
DELL U2422HEB
3
Disassemble LVDS FFC cable from
Panel
Disassemble 5 plastic BOSS from panel
S10
S13
Take off Main SHD from panel
Disassemble mylar from Main SHD
S14
Unlock 14 screws to disassemble
Middle Frame
S11
Unlock 10 PCBA screws to disassemble
I/F BD, SPS BD and LED Driver BD
from Main SHD
S15
(Screw Torque: 5.0±0.5Kgf)
Tear off a tape from Backlight wire and
panel
S12
Pull out Backlight wire from panel
(Screw Torque: 8.5±1Kgf)
Remove all cables from I/F BD, SPS
BD and LED Driver BD
S16
DELL U2422HEB
Remove electrolyte capacitors (red mark) from printed circuit boards
4
S17
S17-1 Cut the glue between bulk cap. and PCB with a knife
S17-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB
DELL U2422HEB
5
S17-3 Take out bulk cap. pin solder with soldering iron and absorber
S17-4 Lift the bulk cap. up and away from the PCB
DELL U2422HEB
6
2. Product material information
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
Batteries
No used
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
Plastic containing BFR
Component and waste contain asbestos
CRT
Component contain CFC, HCFC, HFC and
HC
Gas discharge lamps
No used
No used
No used
No used
No used
No used
Product has an LCD greater than 100
cm2
LCD display > 100 cm2
External electric cable
Product has external cables
No used
No used
Product has electrolyte capacitors
(height >25mm, diameter > 25mm)
Component contain refractory ceramic fibers
Component contain radio-active substances
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
- Penknife
- Bar scraper
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