Dell S2721DSB Manuale

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1

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1. Disassembly Procedures

S1

Turn off the monitor.

S2

Place the monitor on a soft cloth or

cushion.

Press and hold the stand release button

at the back of the display.

Lift the stand assembly up and away

from the monitor.

S3

Unlock 4 screws on Rear Cover

( crew Torque: 8.5±1.0kgf)

S4

Follow the sequence to disassemble

Rear Cover from the monitor

S5

Tear off all adhesive tapes from

backlight wire and PK wire

S6

Unlock 6 PK screws

Pull out PK wire from I/F BD

Disassemble PK from Middle Frame

( crew Torque: 4~6kgf)

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S7

Tear off AL Tape

Pull out CTRL FFC from I/F BD

Pull out backlight wire from P BD

and Panel

( crew Torque: 6~7kgf)

S8

Unlock 6 “A Y DECO” screws

( crew Torque: 1.5~2.5kgf)

S9

Unlock 11 MF screws

( crew Torque: 4~5kgf)

S10

Unlock 4 Main HD screws

( crew Torque: 6~7kgf)

S11

Pull out FFC LVD from the Panel

Take off Main HD from Panel

Disassemble Middle Frame and “A Y

DECO” from panel

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S12

Unlock 2 screws on CTRL BD

( crew Torque: 1.5~2.5kgf)

S13

Tear off CTRL BD FFC from Middle

Frame

S14

Disassemble CTRL BD FFC from CTRL

BD

S15

Disassemble CTRL BD from O D BTN

S16

Disassemble afety Mylar from P

BD

S17

Disassemble the little Mylar from Main

HD

S18

Unlock 8 PCBA screws

Disassemble I/F BD & P BD from

Main HD

( crew Torque: 6~7kgf)

S19

Pull out FFC eDP from the I/F BD

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S20

Remove electrolyte capacitors (red mark) from printed circuit boards

20-1 Cut the glue between bulk cap. and PCB with a knife

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20-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB

20-3 Take out bulk cap. pin solder with soldering iron and absorber

20-4 Lift the bulk cap. up and away from the PCB

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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

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 c

ontain 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

- Scraper Bar

- Penknife

- Soldering iron and absorber