Dell S2721H Istruzioni per l'installazione
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 6pcsscrews for unlocking mechanisms. (No.1~4 screw size=M4x11; Torque=78kgfxcm; No.5~6 screw size=M4x8; Torque=78kgfxcm)~~
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:S6S4S1Take 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 coverS31DELL S2721H
1422
riserbase234156Tear off 2pcs acetate tapes and then disconnect the speaker cable away from the connector. Use a Philips-head screwdriver to remove 6pcs screws for unlocking the speakers with middle bezel. (No.1~6 screw size=M3x8, Torque=5~6kgfxcm)QSGuser’s manualHDMI cablepower cableVESA cover
Tear off 1pcs aluminium foils for unfixing the LVDS connector, and then disconnect the function key cable away from the connector. Tear off 1pcs acetate tape and disconnect the panel lamp cable away from the connector of the panel module.S8Tear off 1pcs aluminum foil (refer to S7) and then remove the two speakers. Use a Philips-head screwdriver to remove 5pcs screws for unlocking the middle bezel with front bezel.(No.1~5 screw size=M2x3.3, Torque=1±0.2kgfxcm)S7S92DELL S2721HUse a Philips-head screwdriver to remove 13pcs screws for unlocking the middle bezel with the assembled unit. (No.1~13 screw size=M3x4, Torque=3~4kgfxcm)Take away the middle bezel, and put it on a fixture. Utear 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±0.2kgfxcmS11S12Tear off the tape, then lift up the panel module with the bracket chassis for releasing the front bezel away from the panel module.15462332145Use 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 )210121113861397452143S10
312
S13Take away the bracket chassis module and then put the bracket chassis module on a protective cushion.S14Remove the interface board and power board from the bracket chassis module carefully, and disconnect all the cables.Use a Philips-head screwdriver to remove six screws for unlocking the circuit board, release all the cables from the hooks.(No.1~5 screw size=M3x7.5, Torque=6±0.5kgfxcm; No. 6 screw size=M4x8, Torque=6±0.5kgfxcm) S16 S17Unplug the LVDS cable from the connector of the panel module by pushing the earing-locks.Remove the Mylar from the hooks of the bracket chassis module.
S155DELL S2721H346251
4
DELL S2721HRemove electrolyte capacitors (red mark) from printed circuit boards.S18S18-1 Cut the glue between bulk cap. and PCB with a knife.S18-2 Ensure cutting path within the glue, don’t touch bulk cap. or PCB.S18-4 Take out bulk cap. pin solder with soldering iron and absorber.S19-5 Lift the bulk cap. up and away from the PCB.S18-3 Cut into the bottom of bulk cap. and pullit up carefully.
5DELL S2721H
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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