Dell S2721HN User manual

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..

Use a Philips-head screwdriver to remove 6pcs

screws for unlocking mechanisms.

(No.1~4 screw size=M4x11; Torque=7 8kgfxcm;

No.5~6 screw size=M4x8; Torque=7 8kgfxcm)

Take out all of the QSG,accessories including HDMI

cable, power cable, CD&user’s manual, stand base,

stand riser and EEI label from the carton. (Note: It

depends on whether users returning the accessories)

Open the Pizza carton with a proper tool.

1. Disassembly Procedures:

Take out of the

from the carton, then take out the monitor from

the EPE bag and put it on a protective cushion.

molded pulp with base, riser and

cover

1S2721HN/NX

Tear off 1pcs acetate tape and then disconnect the

panel lamp cable away from the connector of panel.

Tear off 2pcs aluminum foils, and then disconnect

the function key cable away from the connector of

the board.

riser base cover

QSG

user’s manual

HDMI cable

power cable

label and paper

S2721HN/NX

Take away the middle bezel, and put it on a fixture.

tear off the tapes for

releasing the key cables.

se a Philips-head screwdriver to remove 3pcs

screws for unlocking the function key board with the

middle bezel, and then

(No.1~3 screw size=M2x2.4, Torque=0.8±0.2kgfxcm

S11

Tear off the tape, then lift up the panel module with

the bracket chassis for releasing the front bezel

away from the panel module.

Use a Philips-head screwdriver to remove 2pcs

screws for unlocking the bracket with middle bezel, to

remove 2pcs screws for unlocking the bracket with

panel module.

(No.1~2 screw size=M3x4, Torque=3~4kgfxcm;

No.3~4 screw size=M3x3.5, Torque=2~3kgfxcm )

S10

Use a Philips-head screwdriver to remove 18pcs

screws for unlocking the middle bezel.

(No.1~13 screw size=M3x4, Torque=3~4kgfxcm;

No.14~18 screw size=M2x3.3, Torque=1±0.2kgfxcm)

212 13

17 18

Unplug the LVDS cable from the connector of the

panel module by pushing the earing-locks.

Take away the bracket chassis module and then put

the bracket chassis module on a protective cushion.

Remove the interface board and power board from

the bracket chassis module carefully, and disconnect

all the cables.

Use a Philips-head screwdriver to remove 5pcs

screws for unlocking the circuit board, release all the

cables from the hooks.

(No.1 screw size=M4x8, Torque=6±0.5kgfxcm;

No. 2 screw size=M3x7.5, Torque=6±0.5kgfxcm)~5

S14

S15

Remove the Mylar from the hooks of the bracket

chassis module.

S13

S12

3S2721HN/NX

S2721HN/NX

Remove electrolyte capacitors (red mark) from

printed circuit boards.

S16

S16-1 Cut the glue between bulk cap. and PCB with a knife.

S16-2 Ensure cutting path within the glue, don’t touch bulk

cap. or PCB.

S16-4 Take out bulk cap. pin solder with soldering iron and

absorber.

S16-5 Lift the bulk cap. up and away from the PCB.

S16-3 Cut into the bottom of bulk cap. and pullit up

carefully.

5S2721HN/NX

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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