Dell S2721QSB Manual de usuario
1
D
ELL
S
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
D
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2721Q
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B
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
D
ELL
S
2721Q
S
B
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
D
ELL
S
2721Q
S
B
S2
Remove electrolyte capacitors (red mark) from printed circuit boards
20-1 Cut the glue between bulk cap. and PCB with a knife
5
D
ELL
S
2721Q
S
B
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
D
ELL
S
2721Q
S
B
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
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