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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 UP2720QB

Page 1: ...Simplified Service Manual UP2720QB Version 01 Date 2021 03 04 ...

Page 2: ...SAFETY General Safety 3 1 2 SAFETY General Power Safety 5 2 Exploded view diagram with list of items 6 3 Wiring connectivity diagram 7 4 Disassembly and Assembly Procedures 8 4 1 Disassembly SOP 8 4 2 Assembly SOP 14 5 Trouble shooting instructions 19 ...

Page 3: ...r 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: ...ponents 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...

Page 5: ...s 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 explos...

Page 6: ...TRL BD 1 14 PCBA USB BD 1 4 BTN PWR 1 15 ASSY CLMN 1 5 Panel 1 16 ASSY BASE 1 6 PCBA SPS BD 1 17 Power Cable 1 7 PCBA I F BD 1 18 HDMI Cable 1 8 PCBA MCU BD 1 19 DP Cable 1 9 PCBA LED DRV BD 1 20 Thunderbolt 3 USB Type C Active Cable 1 10 PCBA TBT BD 1 21 USB Type C to Type A Cable 1 11 ASSY SHD MAIN 1 1 2 3 4 6 5 15 16 14 11 8 7 10 12 9 13 17 21 20 19 18 ...

Page 7: ... 7 3 Wiring connectivity diagram Wire 1 FFC 2 FFC 4 Wire 8 Wire 7 FFC 3 Wire 5 Wire 4 FFC 1 Wire 3 Wire 6 Wire 9 Wire 2 ...

Page 8: ...ayout 4 Prepare the implement equipment material as bellow 1 Working table 2 Philips head screwdriver 3 Glove 4 Cleaning cloth 5 ESD protection Item Picture Operation Tool Notes 1 To remove the stand 1 Place the monitor on a soft cloth or cushion 2 Press and hold the stand release button 3 Lift the stand up and away from the monitor 2 1 Unlock 2 screws on the bottom side of Rear Cover 2 Unlock 4 s...

Page 9: ...e Rear Cover from middle frame Notice the disassembly order 1 Disassemble the top side 2 Disassemble the Left Right side 3 Disassemble the bottom side 4 Unplug USB BD wire from TBT BD to take off Rear Cover Scraper Bar ...

Page 10: ...ug backlight wires from LED Driver BD 3 Unplug Power BD to TBT BD Wire from Power BD and TBT BD 4 Unplug Calibrator to MCU BD Wire from MCU BD 5 1 Remove black tapes and unplug the wires of CALIBRATOR Module from I F BD 2 Unplug Control BD Wire from I F BD ...

Page 11: ...anel 2 Remove the tape from FFC EDP cable on panel 3 Unplug FFC EDP cable from panel Philips head screwdriver Torsion of screw 4 5 0 5 7 1 Take off SPS BD Mylar from SPS BD 8 1 Unlock 12 PCBA screws Philips head screwdriver Torsion of PCBA screw 8 5 0 5Kg ...

Page 12: ...ver BD from Main SHD 4 Unplug wire from LED Driver BD to take off LED Driver BD 5 Disassemble MCU BD from Main SHD 6 Unplug wires from MCU BD to take off MCU BD 10 1 Disassemble I F BD from Main SHD 2 Unplug SPS BD wire from I F BD to take off I F BD 3 Tear off tapes on I F BD and unplug all wires from I F BD ...

Page 13: ... 13 11 1 Disassemble SPS BD from Main SHD and unplug AC wire from SPS BD 2 Unplug SPS BD wire from SPS BD ...

Page 14: ...d screwdriver 3 Glove 4 Cleaning cloth 5 ESD protection Item Picture Operation Tools Notes 1 1 Assemble SPS BD wire to SPS BD 2 Insert AC wire to SPS BD and assemble SPS BD to Main SHD 2 1 Insert FFC EDP cable to I F BD and paste 1 tape to fix it 2 Insert Wire EDP to I F BD and paste 1 tape to fix it 3 Insert I F BD to TBT BD FFC Cable LED Driver BD Wire and I F BD to MCU BD wire to I F BD ...

Page 15: ...BD wire to MCU BD 2 Assemble MCU BD to Main SHD 3 Insert LED Driver BD Wire to LED Driver BD 4 Assemble LED Driver BD on Main SHD 5 Insert Wire EDP I F BD to TBT BD FFC Cable and MCU BD to TBT BD Wire to TBT BD 6 Assemble TBT BD on Main SHD 7 Lock 12 PCBA screws Philips head screwdriver Torsion of PCBA screw 8 5 0 5Kg ...

Page 16: ... 2 Insert FFC EDP cable to panel and paste 1 tape to fix it 3 Lock 5 screws to fix Main SHD on panel Philips head screwdriver Torsion of screw 4 5 0 5kg 6 1 Insert Control BD Wire to I F BD 2 Insert the wires of Calibrator Module 3 Arrange the wires of CALIBRATOR Module and adhere a tape to fix the wires ...

Page 17: ...ght Wire to LED Driver BD 2 Insert Power BD to TBT BD Wire to Power BD and TBT BD 3 Insert Calibrator to MCU BD Wire to MCU BD and adhere tapes and mylar to fix it See Orange mark 4 Adhere foils to Main SHD See Purple mark ...

Page 18: ...monitor stand 1 Follow the instructions on the flaps of carton to remove the stand from the top cushion that secures it 2 Insert the stand base blocks fully into the stand slot 3 Lift the screw handle and turn the screw clockwise 4 After tightening the screw fold the screw handle flat within the recess 10 Attach the stand assembly to the monitor a Fit the two tabs on the upper part of the stand to...

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