Dell U2720Q User manual

Use a Philips-head screwdriver to remove four

screws for unlocking mechanisms.

(No.1~4 screw size=M4x11; Torque=11±1kgfxcm)

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 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 base, Paper-Top and stand from the

carton, then take out the monitor from the pizza

carton.

base

stand

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U2720Q/Q2720QM

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.

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.

Delta_E paper

QSG

USB cable

DP cable

power cable

User’s manual

UAE label

Disconnect the panel power cable from the two

connector of the panel module, then release the

panel power cables from the hooks of the middle

bezel.

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)

se a Philips-head screwdriver to remove four

screws for unlocking the bracket chassis module

with the panel module

(No.1~4 Screw size= M3x0.5x4, Torque=3~4kgfxcm)

S13

S10

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

disconnect the EDP cable away from the connector of

the panel module.

S11

S12

Remove the bracket chassis module and then put the

bracket on a protector cushion.

Tear off the adhesive tape for releasing the function

key cable, and then r

Philips-head screwdriver to remove 3pcs screws for

unlocking the function key board.

emove the middle bezel with the

function key board. Tear off the mylar tape, then use

(No.1~3 screw size=M2x2.4, Torque=0.8~1kgfxcm)

S14

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U2720Q/Q2720QM

Use a Philips-head screwdriver to remove 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)

11 13

Use a Philips-head screwdriver to remove two screws

for unlocking the AC power outlet.

(No.1~2 screw size=M3x8, Torque=7±1kgfxcm)

S15

S16

Remove the panel lamp cable from the hook of the

bracket. 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)

S17

Remove the power board board and interface

board from the

disconnect all of the cables.

bracket chassis module carefully,

and then

S18

Turn over the bracket chassis module. Remove the

Mylar tape from the hooks of the bracket.

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U2720Q/Q2720QM

Go to contents page

U2720Q/Q2720QM

Remove electrolyte capacitors (red mark) from

printed circuit boards.

S19

S19-1 Cut the glue between bulk cap. 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 bulk cap. and pullit up

carefully.

S19-4 Take out bulk cap. pin solder with soldering iron and

absorber.

S19-5 Lift the bulk cap. up and away from the PCB.

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U2720Q/Q2720QM

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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