Dell AW2521Hb Simplified Service Manual Download Page 4

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When operating your equipment: 
 

 

Do not use your equipment in a wet environment, for example, near a bath tub, sink, or 
swimming pool or in a wet basement. 

 

Do not use AC powered equipment during an electrical storm. Battery powered devices may 
be used if all cables have been disconnected. 

 

Do not spill food or liquids on your equipment. 

 

Before you clean your equipment, disconnect it from the electrical outlet. Clean your device 
with a soft cloth dampened with water. Do not use liquids or aerosol cleaners, which may 
contain flammable substances. 

 

Clean the monitor display with a soft, clean cloth and water. Apply the water to the cloth, 
then stroke the cloth across the display in one direction, moving from the top of the display 
to the bottom. Remove moisture from the display quickly and keep the display dry. 

 

Long-term exposure to moisture can damage the display. Do not use a commercial window 
cleaner to clean your display. 

 

If your equipment does not operate normally - in particular, if there are any unusual sounds 
or smells coming from it - unplug it immediately and contact an authorized dealer or service 
center. 

 

Protecting Against Electrostatic Discharge 
 

Electrostatic discharge (ESD) events can harm electronic components inside your equipment. Under 
certain conditions, ESD may build up on your body or an object, such as a peripheral, and then 
discharge into another object, such as your computer. To prevent ESD damage, you should 
discharge static electricity from your body before you interact with any of your equipment’s internal 
electronic components, such as a memory module. You can protect against ESD by touching a metal 
grounded object (such as an unpainted metal surface on your computer’s I/O panel) before you 
interact with anything electronic. When connecting a peripheral (including handheld digital assistants) 
to your equipment, you should always ground both yourself and the peripheral before connecting it. In 
addition, as you work inside the equipment, periodically discharge any static charge your body may 
have accumulated. 

 

You can also take the following steps to prevent damage from electrostatic discharge: 

 

 

When unpacking a static-sensitive component from its shipping carton, do not remove the 
component from the antistatic packing material until you are ready to install the component. 
Just before un wrapping the antistatic package, be sure to discharge static electricity from 
your body. 

 

When transporting a sensitive component, first place it in an antistatic container or 
packaging. 

 

Handle all electrostatic sensitive components in a static-safe area. If possible, use antistatic 
floor pads and work bench pads. 

 
 
 
 
 
 
 
 
 

Summary of Contents for AW2521Hb

Page 1: ... 1 Simplified Service Manual AW2521HB Version 01 Date 2020 11 13 ...

Page 2: ... 2 Content Index 1 General Safety Instructions 3 1 1 SAFETY General Safety 3 1 2 SAFETY General Power Safety 5 2 Disassembly SOP 6 3 Assembly SOP 11 ...

Page 3: ...or place equipment so close together that it is subject to recalculated or preheated air NOTE Review the weight limits referenced in your computer documentation before placing a monitor or other devices on top of your computer Ensure that nothing rests on your equipment s cables and that the cables are not located where they can be stepped on or tripped over Ensure that all cables are connected to...

Page 4: ...omponents inside your equipment Under certain conditions ESD may build up on your body or an object such as a peripheral and then discharge into another object such as your computer To prevent ESD damage you should discharge static electricity from your body before you interact with any of your equipment s internal electronic components such as a memory module You can protect against ESD by touchi...

Page 5: ...as risk of electric shock and or fire Ensure that the ground prong of the power plug is inserted into the mating ground contact of the power strip Be sure to grasp the plug not the cable when disconnecting equipment from an electric socket If your equipment uses an AC adapter Use only the Dell provided AC adapter approved for use with this device Use of another AC adapter may cause a fire or explo...

Page 6: ...ment material as bellow 1 Working table 2 Screw driver 3 Glove 4 Cleaning cloth 5 ESD protection Item Picture Operation Tool Notes 1 To remove the stand 1 Turn off the monitor 2 Disconnect the cables from the computer 3 Place the monitor on a soft cloth or cushion 4 Carefully slide and remove the I O cover from the monitor 5 Disconnect the cables from the monitor and slide them out through the cab...

Page 7: ...e disassembly order Left Side Top Side Right Side Bottom Side 3 Remove USB FFC and Audio FFC from I F BD 4 Disconnect LED Driver BD wire and CTRL FFC cable from I F BD 5 Take off Rear Cover 1 Screw driver Screw Torque 8 10 Kgf 2 Scraper bar 5 1 Tear off tapes on Backlight Wire 2 Disconnect Backlight Wire from I F BD ...

Page 8: ...ght Sensor BD FFC from I F BD and remove it from Panel and Main SHD 8 1 Unlock 4 screws to disassemble Main SHD from Panel Blue Mark 2 Tear off an acetate tape and a tensile tape from EDP cable 3 Disconnect EDP cable from Panel 4 Take off Main SHD from Panel Screw driver Screw Torque Main SHD 4 0 0 5Kgf ...

Page 9: ...ety mylar from Main SHD 11 1 Tear off an adhesive tape from EDP cable on I F BD 2 Disconnect EDP cable from I F BD 3 Unlock 9 PCBA screws to disassemble I F BD and SPS BD 4 Disassemble I F BD and SPS BD from Main SHD Screw driver Screw Torque 8 5 1kgf Do not touch the component without wearing insulating gloves when disassembli ng and assembling Power BD ...

Page 10: ...ect I F BD to Docking BD wire from I F BD 2 Disconnect wire from I F BD and SPS BD 13 1 Disconnect Fan Cable from I F BD 2 Unlock 4 screws to disassemble G SYNC Module from I F BD Screw driver Screw Torque 4 0 0 5 kgf ...

Page 11: ...ion Tools Notes 1 1 Assemble G SYNC HeatSink Module with I F BD and fix it by screw 4 2 Insert Fan Cable into I F BD Screw driver Screw Torque 4 0 0 5 kgf 2 1 Insert SPS BD wire into SPS BD and assemble SPS BD in Main SHD 2 Insert wire to connect I F BD and SPS BD 3 Insert I F BD to Docking BD wire into I F BD Screw driver Screw Torque 8 5 1kgf Do not touch the component without wearing insulating...

Page 12: ...SHD and fix it by screw 1 Screw driver Screw Torque 8 5 1 0 kgf 4 1 Place panel on working table 2 Insert the EDP cable into Panel 3 Stick a piece of tensile tape and acetate tape on EDP cable 4 Place Main SHD on Panel and fix it by screw 4 Blue Mark Screw driver Screw Torque Main SHD 4 0 0 5Kgf Screw Torque MF 4 5 0 5Kgf Please align the connector of EDP cable to paste yellow tape Make sure all p...

Page 13: ... Address CTRL LENS BD FFC on Panel and Main SHD then insert Light Sensor BD FFC into I F BD 7 1 Insert Backlight Wire into I F BD 2 Address Backlight Wire and stick 6 adhesive tapes to fix Backlight Wire 8 1 Insert LED Driver BD wire and CTRL FFC cable into I F BD 2 Insert USB FFC and Audio FFC into I F BD ...

Page 14: ...nd base and turn it clockwise to secure the stand assembly 3 Close the screw handle 4 Carefully insert the tabs on the stand riser into the slots on the display back cover and lower the stand assembly to snap it into place Note When connecting the stand assembly to the display do not place the stand riser directly on the display back panel Doing so may damage the pogo pins on the stand due to misa...

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