DELL U2720Q Ultrasharp 27 inch 4K USB-C Monitor User Guide
- June 6, 2024
- Dell
Table of Contents
U2720Q
Disassembly Procedures:
S1 Open the carton with a proper tool.
S2 Take out all accessories including UAE label, QSG, Delta-e-paper, user’s
manual, DP cable, USB cable, power cable, and other packing materials from the
carton. (Note: It depends on whether users return the accessories)
S3 Take out the base, Paper-Top, and stand from the
carton, then take out the monitor from the pizza carton.
S4 Take out the monitor from the EPE bag and put the LCD monitor on a
protective cushion.
S5 Use a Philips-head screwdriver to remove four screws
for unlocking mechanisms.
(No.1~4 screw size=M4x11; Torque=11±1kgfxcm)
S6 Wedge your fingers between the 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.
S7 Lift the rear cover up carefully. Disconnect the USB LVDS cable and
function key cable from the connectors of the interface board, and then remove
the rear cover.
S8 Use a Philips-head screwdriver to remove a 1pcs screw for unlocking the
USB board unit, then release the USB board unit and put it aside.
(No.1 screw size=M3x6, Torque=4±0.5kgfxcm)
S9 Tear off 4pcs aluminum foil for releasing the bracket. Use a Philips-head
screwdriver to release 12 screws for unlocking the middle bezel away from the
assembled unit.
(No.1~12 screw size=M3x4, Torque=3~4kgfxcm)
S10 Use a Philips-head screwdriver to remove four screws for unlocking the
bracket chassis module with the panel module.
(No.1~4 Screw size= M3x0.5×4, Torque=3~4kgfxcm)
S11 Disconnect the panel power cable from the two connectors of the panel
module, then release the panel power cables from the hooks of the middle
bezel.
S12 Move up the bracket, then push the earing-lock and disconnect the EDP
cable away from the connector of the panel module.
S13 Remove the bracket chassis module and then put the
bracket on a protector cushion.
S14 Tear off the adhesive tape for releasing the function key cable, and
then a Philips-head screwdriver to remove 3pcs screws for unlocking the
function keyboard. Tear off the mylar tape, then use remove the middle bezel
with the function keyboard.
(No.1~3 screw size=M2x2.4, Torque=0.8~1kgfxcm)
S15 Turn over the
bracket chassis module. Remove the Mylar tape from the hooks of the bracket.
S16 Use a Philips-head screwdriver to remove two screws for unlocking the
AC power outlet.
(No.1~2 screw size=M3x8, Torque=7±1kgfxcm)
S17 Remove the panel lamp cable from the hook of the bracket. Use a Philips-
head screwdriver to remove 6pcs screws for the interface board and power
board.
(No.1 screw size=M4x8, Torque=7±1kgfxcm;
No.2~6 screw size=M3x7.5, Torque=7±1kgfxcm)
S18 Remove the power board and interface board from the bracket chassis
module carefully, and then disconnecting all of the cables.
S19 Remove electrolyte capacitors (red mark) from printed circuit
boards.
S19-1 Cut the glue between bulk
caps. and PCB with a knife.
S19-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB.
S19-3 Cut into the bottom of the bulk cap. and pull
it up carefully.
S19-4 Take out the bulk cap. pin solder with soldering iron and absorber.
S19-5 Lift the bulk cap. up and away from the PCB.
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, HFC and HC| No used
Gas discharge lamps| No used
LCD display > 100 cm2| The product has an LCD greater than 100 cm2
External electric cable| The product has external cables
The component contains refractory ceramic fibers| No used
Component contain 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 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
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