Dell U3424DWB Manuel utilisateur

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DELL U3424D

1. Disassembly Procedures

Turn off power

To remove the stand:

Place U3824DW monitor on U3818DW

curve sponge jig

Press and hold the stand release button

at the back of the display

Lift the stand assembly up and away

from the monitor

Unlock 4 screws on Rear Cover

(Screw Torque:8-10Kgf)

Use hands or Bar Scraper to

disassemble Rear Cover from Middle

Frame

Notice the disassembly order:

Left Side=>Top Side =>Right Side

=>Bottom Side

Pull out “CTRL BD FFC” from I/F BD to

take off Rear Cover

Tear off a tape from Rear Cover

Tear off “CTRL FFC” from Rear Cover

Unlock 3 screws to disassemble “CTRL

BD” from Rear Cover

(Screw Torque: 2.0+0.5 Kgf)

Tear off a rubber from CTRL BD

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DELL U3824D

Tear off “MYLAR INTF-BD 98*40” from

Main SHD

Tear off “MYLAR INTF-BD 71*41” from

Main SHD

Tear off “MYLAR BL-BD” from Main

SHD

Unplug “Backlight Wire” from LED

Driver BD (See pink mark)

Unplug “Speaker Wire” from I/F BD

(See red mark)

Tear off 6 tapes from “Speaker Wire”

and Panel (See blue Mark)

Unlock 8 screws to disassemble

Speaker from Middle Frame

(See yellow mark)

(Screw Torque: 5~6 Kgf)

S10

Tear off an acetate tape from “USB BD

Wire” and Panel

Unplug “USB BD Wire” from I/F BD

Press and hold the center of connector

to unplug 2 “USB BD FFC” from I/F BD

Unlock 1 screw to disassemble USB BD

from Middle Frame

Unplug “USB BD Wire” from USB BD

Press and hold the center of connector

to unplug “USB BD FFC” from USB BD

(Screw Torque: 4.5±0.5 Kgf)

NOTE

To unplug “USB BD FFC” from I/F BD

or USB BD, please press and hold the

center of connector (see yellow mark)

first, then, take off “USB BD FFC” from

I/F BD or USB BD. Do not pull out “USB

BD FFC” directly by force. Otherwise,

“USB BD FFC” will be damaged.

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DELL U3424D

S11

Disassemble a gasket from Panel

S12

Unlock 4 screws to disassemble Main

SHD from Panel

(Screw Torque: 4.5-5.5 Kgf)

S13

Tear off an acetate tape from “FFC

EDP” and panel

Tear off a yellow tape from “FFC EDP”

connector

S14

Unplug “FFC EDP” from panel

Take off Main SHD from Panel

S15

Unlock 19 screws to disassemble

Middle Frame from Panel

(Screw Torque: 3.5-4.0 Kgf)

S16

Disassemble 4 pieces of “BOSS

PANEL” from panel

S17

Tear off logo from panel

S18

Disassemble Mylar from Main SHD

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DELL U3824D

S19

Unlock 10 PCBA screws to disassemble

“I/F BD”, “SPS BD” and “LED Driver

BD” from Main SHD

(Screw Torque: 8.5±1 Kgf)

S20

Tear off a tape from “FFC EDP”

Unplug wires from I/F BD, SPS BD and

LED Driver BD

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DELL U3424D

S21

Remove electrolyte capacitors (red mark) from printed circuit boards

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S21-1 Cut the glue between bulk cap. and PCB with a knife

S21-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB

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DELL U3824D

S21-3 Take out bulk cap. pin solder with soldering iron and absorber

S21-4 Lift the bulk cap. up and away from the PCB

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DELL U3424D

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.

Capacitors / condensers (containing

PCB/PCT)

No used

Mercur

containin

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

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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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:

- Philips-head Screwdriver

- Penknife

- Bar scraper

- U3818DW Curve Sponge Jig

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