Dell U3023E Manuale utente

DELL U3023E

Unplug external cables(power cable and video

cable) from the monitor.

Turn off power.

1. Disassembly Procedures:

Remove stand from the product.(Press the stand

release button, lift the stand up and away from the

monitor)

Use a Philips-head screwdriver to remove 4pcs

screws for unlocking mechanisms. Remove DP caps.

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

Tear off screen protector, then 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 the rear cover in

order of arrow preference for unlocking the rear

cover.

Lift the rear cover up carefully. Disconnect the

joystick key cable from the connector of the interface

board, and then remove the rear cover and put it

aside for later disassembling.

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=M2x3.3, Torque=0.8~1kgfxcm)

2DELL U3023E

S10

Use a Philips-head screwdriver to release one screw

for unlocking the USB board, and disconnect the two

USB cables and LED cable, then release the USB

board from the hooks of the middle bezel.

(No.1screw size=M3x5, Torque=4±0.5kgfxcm)

S11

Tear off 2pcs aluminum foil for unfixing the two panel

lamp cables, and then tear off 2pcs acetate tapes for

uncovering the panel connectors, then disconnect

the panel lamp cables from the two connectors of

the panel module.

Use a Philips-head screwdriver to remove

16(11+5)pcs screws for unlocking the middle bezel

with the panel module.

(No.1~16 screw size=M3x5, Torque=5±0.5kgfxcm)

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

S12

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)

12 14

13 15

576

810

DELL U3023E

Use a Philips-head screwdriver to remove

screws for interface board and power board. Release

the panel lamp cable from the hook of the bracket.

8pcs

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

No.2~8 screw size=M3x7.5, Torque=7±1kgfxcm)

S16

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 chassis module.

S15

S17

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.

S13

S14

4DELL U3023E

Remove electrolyte capacitors (red mark) from

printed circuit boards.

S18

S18-1 Cut the glue between bulk cap. and PCB with a knife.

S18-2 Ensure cutting path within the glue, don’t touch bulk

cap. or PCB.

S18-4 Take out bulk cap. pin solder with soldering iron and

absorber.

S18-5 Lift the bulk cap. up and away from the PCB.

S18-3 Cut into the bottom of bulk cap. and pullit up

carefully.

DELL U3023E

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.

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

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)

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