Dell U2720Q Manuale utente
Use a Philips-head screwdriver to remove four
screws for unlocking mechanisms.
(No.1~4 screw size=M4x11; Torque=11±1kgfxcm)
Take out all accessories including UAE label, QSG,
Delta-e paper, user’s manual, DP cable, USB cable,
power cable and other packing materials from the
carton.(Note: It depends on whether users returning
the accessories)
S2
Open the carton with a proper tool.
1. Disassembly Procedures:
S1
Take out the monitor from EPE-bag and put the LCD
monitor on a protective cushion.
Take out the base, Paper-Top and stand from the
carton, then take out the monitor from the pizza
carton.
S3
S4
S5
base
stand
23
41
1
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U2720Q/Q2720QM
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.
S6
S7
1
2
34
Lift the rear cover up carefully. Disconnect the USB
LVDS cable and function key cable from the
connectors of the interface board, and then remove
the rear cover.
Delta_E paper
QSG
USB cable
DP cable
power cable
User’s manual
UAE label
Disconnect the panel power cable from the two
connector of the panel module, then release the
panel power cables from the hooks of the middle
bezel.
Tear off 4pcs aluminum foil for releasing the bracket.
Use a Philips-head screwdriver to release 12 screws
for unlocking the middle bezel away from the
assembled unit.
(No.1~12 screw size=M3x4, Torque=3~4kgfxcm)
S9
U
.
se a Philips-head screwdriver to remove four
screws for unlocking the bracket chassis module
with the panel module
(No.1~4 Screw size= M3x0.5x4, Torque=3~4kgfxcm)
S13
S10
Move up the bracket, then push the earing-lock and
disconnect the EDP cable away from the connector of
the panel module.
S11
S12
Remove the bracket chassis module and then put the
bracket on a protector cushion.
Tear off the adhesive tape for releasing the function
key cable, and then r
a
Philips-head screwdriver to remove 3pcs screws for
unlocking the function key board.
emove the middle bezel with the
function key board. Tear off the mylar tape, then use
(No.1~3 screw size=M2x2.4, Torque=0.8~1kgfxcm)
S14
2
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U2720Q/Q2720QM
Use a Philips-head screwdriver to remove 1pcs
screw for unlocking the USB board unit, then release
the USB board unit and put it aside.
(No.1 screw size=M3x6, Torque=4±0.5kgfxcm)
1
S8
1
23
3
10
29
7
4
11 13
1
8
56
14
12
15
16
Use a Philips-head screwdriver to remove two screws
for unlocking the AC power outlet.
(No.1~2 screw size=M3x8, Torque=7±1kgfxcm)
S15
S16
Remove the panel lamp cable from the hook of the
bracket. Use a Philips-head screwdriver to remove
screws for interface board and power board. 6pcs
(No.1 screw size=M4x8, Torque=7±1kgfxcm;
No.2~6 screw size=M3x7.5, Torque=7±1kgfxcm)
S17
Remove the power board board and interface
board from the
disconnect all of the cables.
bracket chassis module carefully,
and then
S18
Turn over the bracket chassis module. Remove the
Mylar tape from the hooks of the bracket.
1
2
3
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U2720Q/Q2720QM
13
2
2
4
3
1
56
4
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U2720Q/Q2720QM
Remove electrolyte capacitors (red mark) from
printed circuit boards.
S19
S19-1 Cut the glue between bulk cap. and PCB with a knife.
S19-2 Ensure cutting path within the glue, don’t touch bulk
cap. or PCB.
S19-3 Cut into the bottom of bulk cap. and pullit up
carefully.
S19-4 Take out bulk cap. pin solder with soldering iron and
absorber.
S19-5 Lift the bulk cap. up and away from the PCB.
5
Go to contents page
U2720Q/Q2720QM
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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