DELL U2520DR 25 USB-C Monitor User Guide
- June 6, 2024
- Dell
Table of Contents
Disassembly Procedures
S1 Turn n off the monitor.
S2 Place the monitor on a soft cloth along with the desk.
- Removing the monitor stand.
- 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.
S3 Unlock 4 screws on the Rear Cover.
S4 Disassemble Rear Cover from middle frame.
Notice the disassembly order:
- Disassemble the top side.
- Disassemble the Left/Right side.
- Disassemble the bottom side.
- Disassemble Rear Cover from the middle frame.
S5 Remove the tape which fixed the USB FFC cable and USB wire on the panel.
S6 Remove USB FFC cable and USB wire from I/F BD.
S7 Tear off the tape from Rear Cover
S8 Unlock a screw-on USB BD and take off USB BD from Rear Cover
S9 Remove USB FFC cable and USB wire from USB BD.
**S10**Remove Sensor BD wire from I/F BD and Sensor BD
Disassemble SENSOR BD from the panel.
S11 Remove Control BD wire from I/F BD
**S12**Remove 4 black tapes from Panel.
813 Remove long and short backlight wire from LED Driver BD.
**814** Remove 2 tapes that fixed backlight wire from the panel and middle
frame.(See mark)
Remove long and short backlight wire from the panel.
Unlock 1 TP -S screw (See Blue mark) and disassemble a PANEL BOSS from Middle
Frame.
Unlock screws on Middle Frame
a. FHP screws2.(See Green mark)
b. MF BASE screws3 (See Red mark)
(TP-S Screw Torque: 6.5±0.5kg0 (FPH screw and base Screw Torque:
3.5-4.0kgf)
S15 Tear off the yellow tape from Panel and disassemble the LVDS cable
from Panel.
S18 Take off Main SHD from Panel.
**817**Unlock 11 screws on the Middle frame
S18 Take off Middle frame from Panel Remove 3 tapes from the panel
S19 Remove 1 Gasket from Middle Frame
S20 Unlock 3 screws on the middle frame to take off Control BD ASSY.
S21 Tear off Control BD Mylar from Control BD and take off Control BD
FFC cable.
Unlock 4 screws on Control BD to disassemble Control BD from Key Button.
(Screw Torque: 1.4-1.45kgf)
**S22**Take off Mylar from SPS BD.
**S23** Unlock 9 PCBA screws.
(Screw T Torque: 8.5 5±0.5kgf)
S24 Disassemble LED Driver BD, BD and SPS BD from Main SHD.
Remove all cables and tapes from LED Driver BD. I/F BD and SPS BD.
**S25** Unlock 1 Grounding Screw and disassemble AC wire from Main SHD.
(Screw
Torque: 8.5±0.5kgf)
S26 Remove electrolyte capacitors (red mark) from printed circuit
boards
S26-1 Cut the glue between bulk caps. and PCB with a knife
S26-2 Ensure cutting path within the glue. don’t touch bulk cap. or PCB
S26-3 Take out the bulk cap. pin solder withholding iron and absorber
S26-4 Lift the bulk ca . u and away from thel3C B
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 | No used |
| Batteries | No used |
| Printed circuit boards (with a surface greater than 10 square cm) | The product |
has printed circuit boards (with a surface greater than 10 square cm)
The component contains 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,1-1FC 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 contains refractory ceramic fibers| No used
Component contains radioactive substances| No used
Electrolyte capacitors (height > 25mm, diameter > 25mm)| Product has
electrolyte capacitors (height >25mm, diameter > 25mm)
Tools Required
List the type and size of the tools that would typically be used to
disassemble the product to a point where components and materials requiring
selective treatment can be removed.
Tool Description:
– Screwdriver
– Scraper Bar
– Penknife
– Soldering iron and absorber