Dell戴尔Dell S2721HSX Monitor Teardown Instructions 说明书 用户手册

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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 4pcs
screws for unlocking mechanisms.
(No.1~4 screw size=M4x11; Torque=7 8kgfxcm) ~
S5
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)
S2
Open the Pizza carton with a proper tool.
1. Disassembly Procedures:
S6
S4
S1
Take out of the from the
carton, then take out the riser and monitor from the
EPE bag and put it on a protective cushion.
molded pulp with base
S3
1 S2721HS/HSX
2
3
4
1
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
QSG
user’s manual
HDMI cable
power cable
label and paper
monitor
1
3
2
2S7
S9
S8
2 S2721HS/HSX
Take away the middle bezel, and put it on a fixture.
U
tear off the tapes for releasing the key cables.
se a Philips-head screwdriver to remove 3pcs
screws for unlocking the function key board, 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 panel module.
(No.1~2 screw size=M3x3, Torque=3~4kgfxcm )
S10
3
1
2
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)
Unplug the LVDS cable from the connector of the
panel module by pushing the earing-locks.
2
12
1
3
8
6
13
9
7
4 5
11
10
15
14
17
18
16
2 1Take 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. 2~5 screw size=M3x7.5, Torque=6±0.5kgfxcm)
S14
S15
Remove the Mylar from the hooks of the bracket
chassis module.
S13
S12
3 S2721HS/HSX
3
2
2
5
14 S2721HS/HSX
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.26 S2721HS/HSX
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