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1. General Safety Instructions  

Use the following safety guidelines to help ensure your own personal safety and to help protect your 
equipment and working environment from potential damage. 

NOTE: In this section, equipment refers to monitors. 
 

IMPORTANT NOTICE FOR USE IN HEALTHCARE ENVIRONMENTS:  
Dell products are not medical devices and are not listed under UL or IEC 60601 (or equivalent). As a 
result, they must not be used within 6 feet of a patient or in a manner that directly or indirectly 
contacts a patient 
 

1.1 SAFETY: General Safety 

WARNING: To prevent the spread of fire, keep candles or other open flames away from this product 
at all times. 
 

When setting up the equipment for use: 

 

 

Place the equipment on a hard, level surface. Leave 10.2 cm (4 in) minimum of clearance on 
all vented sides of the computer to permit the airflow required for proper ventilation. 

 

Restricting airflow can damage the computer or cause a fire. 

 

Do not stack equipment 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 the appropriate connectors. Some connectors have 
a similar appearance and may be easily confused (for example, do not plug a telephone 
cable into the network connector). 

 

Do not place your equipment in a closed-in wall unit or on a bed, sofa, or rug. 

 

Keep your device away from radiators and heat sources. 

 

Keep your equipment away from extremely hot or cold temperatures to ensure that it is used 
within the specified operating range. 

 

Do not push any objects into the air vents or openings of your equipment. Doing so can 
cause fire or electric shock by shorting out interior components. 

 

Avoid placing loose papers underneath your device. Do not place your device in a closed-in 
wall unit, or on a soft, fabric surface such as a bed, sofa, carpet, or a rug. 

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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