Dell U2722D Handbuch

DELL U2722D/DX

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,

manual from the carton. (Note: It depends on whether

users returning the accessories)

Open the carton with a proper tool.

1. Disassembly Procedures:

Take out the monitor from EPE-bag and put the LCD

monitor on a protective cushion.

Take out the paper top with base from the carton,

then take out the monitor and stand from the carton.

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.

Lift the rear cover up carefully. Disconnect the

joystick key cable and Usb EDP cable from the

connectors of the interface board, and then remove

the rear cover.

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)

base

Delta_E paper

QSG

USB A to C cable

DP cable

power cable

USB C to C cable manual

monitor

stand

2DELL U2722D/DX

S14

S10

Use a Philips-head screwdriver to release one screw

for unlocking the USB board, then release the USB

board from the hooks of the middle bezel and then

remove the USB board unit.

(No.1screw size=M3x6, Torque=4±0.5kgfxcm)

S11

Tear off 1pcs aluminum foil for unfixing the bracket,

and then disconnect the LED cable from the

connector of the interface board.

Use a Philips-head screwdriver to remove 13pcs

screws for unlocking the middle bezel with the panel

module.

(No.1~13 screw size=M3x5, Torque=5±0.5kgfxcm)

11 10

13 12

5761

Disconnect the panel lamp from the connector of the

panel, then release the panel lamp cable from the

hooks of the middle bezel.

S12

Tear off the tape on the back of panel module for

releasing the LED cable, then

middle bezel, and put it on a cushion foam, and then

tear off the mylar tape for releasing the LED board.

lift up and take away the

S13

se a Philips-head screwdriver to remove 4pcs

screws for unlocking the bracket chassis module

with the panel

(No.1~4 Screw size= M3x5, Torque=5±0.5kgfxcm)

DELL U2722D/DX

S15

S16

Use a Philips-head screwdriver to remove

screws for interface board and power board.

6pcs

(No.1 screw size=M4x8, Torque=7±1kgfxcm;

No.2~6 screw size=M3x7.5, Torque=7±1kgfxcm)

S18

Remove the power board board and interface

board from the

disconnect all of the cables.

bracket chassis module carefully,

and then

Remove the Mylar tape from the hooks of the

bracket.

S17

S19

Move up the bracket, then push the earing-lock and

disconnect the LVDS cable away from the connectors

of the panel module.

Take away the bracket chassis module and then put

the bracket chassis module on a protective cushion.

4DELL U2722D/DX

Remove electrolyte capacitors (red mark) from

printed circuit boards.

S20

S20-1 Cut the glue between bulk cap. and PCB with a knife.

S20-2 Ensure cutting path within the glue, don’t touch bulk

cap. or PCB.

S20-4 Take out bulk cap. pin solder with soldering iron and

absorber.

S20-5 Lift the bulk cap. up and away from the PCB.

S20-3 Cut into the bottom of bulk cap. and pullit up

carefully.

DELL U2722D/DX

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

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