Dell S2721QSB User manual

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1

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ELL

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2721Q

S

B

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)

2

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S7

Pull out CTRL FFC from I/F BD

Pull out backlight wire from P BD and

Panel

Unlock 4 Location screws

Tear off the yellow tape

( 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)

S1

Pull out FFC eDP from Panel to take off

Main HD from Panel

S11

Disassemble Middle Frame and “A Y

DECO” from panel

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

3

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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

4

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S2

Remove electrolyte capacitors (red mark) from printed circuit boards

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

5

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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

6

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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 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

- Scraper Bar

- Penknife

- Soldering iron and absorber