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1.2 SAFETY: General Power Safety 

Observe the following guidelines when connecting your equipment to a power source: 
 

 

Check the voltage rating before you connect the equipment to an electrical outlet to ensure 
that the required voltage and frequency match the available power source. 

 

Do not plug the equipment power cables into an electrical outlet if the power cable is 
damaged 

 

Norway and Sweden: If this product is provided with a 3-prong power cable, connect the 
power cable to a grounded electrical outlet only. 

 

If you use an extension power cable, ensure that the total ampere rating of the products 
plugged in to the extension power cable does not exceed the ampere rating of the extension 
cable. 

 

If you must use an extension cable or power strip, ensure the extension cable or power strip 
is connected to a wall power outlet and not to another extension cable or power strip. The 
extension cable or power strip must be designed for grounded plugs and plugged into a 
grounded wall outlet. 

 

If you are using a multiple-outlet power strip, use caution when plugging the power cable into 
the power strip. Some power strips may allow you to insert a plug incorrectly. Incorrect 
insertion of the power plug could result in permanent damage to your equipment, as well 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 explosion. 

 

NOTE: Refer to your system rating label for information on the proper adapter model 
approved for use with your device. 

 

Place the AC adapter in a ventilated area, such as a desk top or on the floor, when you use 
it to run the computer or to charge the battery. Do not cover the AC adapter with papers or 
other items that will reduce cooling; also, do not use the AC adapter inside a carrying case. 

 

The AC adapter may become hot during normal operation of your computer. Use care when 
handling the adapter during or immediately after operation. 

 

It is recommended that you lay the adapter on the floor or desk so that the green light is 
visible. This will alert you if the adapter should accidentally go off due to external effects. If 
for any reason the green light goes off, disconnect the AC power cord from the wall for a 
period of ten seconds, and then reconnect the power cord. 

 

Japan Only: Use only the Dell-provided AC power cable with the AC adapter. Use of any 
other power cable may damage the device or AC adapter or may present risk of fire or 
electric shock. 

 
 
 
 
 
 
 
 
 

Содержание AW2721DB

Страница 1: ... 1 Simplified Service Manual AW2721DB Version 01 Date 2020 11 13 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 6: ...semble layout 4 Prepare the implement equipment material as bellow 1 Working table 2 Screw driver 3 Glove 4 Cleaning cloth 5 ESD protection Item Picture Operation Tool Notes 1 1 Place the monitor on a soft cloth or cushion 2 Carefully slide and remove the I O cover from the monitor 3 Disconnect the cables from the monitor and slide them out through the cable management slot on the stand riser 4 Pr...

Страница 7: ...sembly order Left Side Top Side Right Side Bottom Side Screw driver Screw Torque 8 10 Kgf 3 1 Remove USB FFC and Audio FFC from I F BD 2 Remove 1 tape on LED Driver BD wire from Main SHD and disconnect LED Driver BD wire from I F BD 3 Disconnect CTRL FFC cable from I F BD and tear it from Main SHD 4 Take off Rear Cover ...

Страница 8: ...sconnect Light Sensor BD FFC from I F BD and tear off it from Main SHD 4 Disconnect CTRL LENS BD FFC from I F BD and tear off it from Main SHD 5 1 Tear off a yellow tape and an acetate tape from EDP cable and panel 2 Disconnect EDP cable from Panel 3 Take off Main SHD from Panel Screw driver Screw MF and inferior 4 5 0 5Kg ...

Страница 9: ...pe and a yellow tape from I F BD and EDP cable 2 Disconnect EDP cable from I F BD 3 Unlock 11 screws on PCBA to disassemble SPS LED BD SPS BD and I F BD from Main SHD 4 Disconnect wires from I F BD SPS BD and SPS LED BD Screw driver Screw Torque PCBA 8 5 1 0Kg Screw Torque Ground Screw 8 10Kg Do not touch the component without wearing insulating gloves when disassemblin g and assembling Power BD ...

Страница 10: ...dule from I F BD Screw driver Screw Torque 4 4 5Kg 10 1 Unlock 4 Heat Sink screws and 4 captive screws to disassemble G Sync module Heat Sink Module and SHEET STIFFENER 2 Tear off MYLAR from SHEET STIFFENER Screw driver Screw Torque captive screw 4 4 5Kg Screw Torque Heat Sink 2 2 5Kg ...

Страница 11: ...D protection Item Picture Operation Tools Notes 1 1 Assemble MYLAR with SHEET STIFFENER 2 Assemble G Sync module Heat Sink Module and SHEET STIFFENER then fix them by captive screw 4 3 Lock 4 Heat Sink Screws Screw driver Screw Torque Captive Screw 2 2 5 kgf Screw Torque Heat Sink 4 4 5 kgf 2 1 Assemble G SYNC Module with I F BD and fix it by screw 4 2 Insert Fan Cable into I F BD Screw driver Scr...

Страница 12: ...SPS LED BD with Main SHD Screw Driver Screw Torque ground screw 8 10 kgf Do not touch the component without wearing insulating gloves when disassemblin g and assembling Power BD 4 1 Lock PCBA by screws 11 2 Insert EDP cable to I F BD 3 Paste an adhesive tape and a yellow tape on I F BD to fix EDP cable Screw driver Screw Torque PCBA 8 5 1 0 kgf SPS BD ...

Страница 13: ...er Screw Torque 8 5 1 0 kgf 7 1 Place panel on working table 2 Insert the EDP cable into Panel 3 Stick a yellow tape and an acetate tape to fix EDP cable on panel 4 Place Main SHD on Panel Screw driver Screw Torque MF and inferior 4 5 0 5Kg 8 1 Address CTRL LENS BD FFC on Panel and Main SHD 2 Address Light Sensor BD FFC on Panel and Main SHD ...

Страница 14: ...14 9 1 Address Sensor BD FFC on panel and Main SHD 2 Insert Backlight Wires into SPS LED BD 10 1 Insert LED DRV BD wire and CTRL FFC cable into I F BD 2 Paste 1 tape to fix LED Driver BD wire on Main SHD ...

Страница 15: ... the bottom of the stand 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...

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