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Dell U2520DRB, Simplified Service Manual

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Dell U2520DRB Simplified Service Manual Download Page 16

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5. Trouble shooting instructions 

 

 

Summary of Contents for U2520DRB

Page 1: ... 1 Simplified Service Manual U2520DRB Version 01 Date 2021 08 23 ...

Page 2: ...1 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 12 5 Trouble shooting instructions 16 ...

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: ...1 7 SCRW TP B FPH M2 4L B ZN 3 22 ASSY RC 1 8 SCRW MACH FLATM3 0 5P 4 5L ZN 11 23 SCRW M FPH M4 10L ZN NYL 1 9 BOSS PANEL 1 24 ASSY CLMN 1 10 SCRW TP S W FLM3 9 3L S3 8 ZN 1 25 ASSY BASE 1 11 SCRW T FPH M3 6L DELTA PT NI 3 26 Power cable 1 12 SCRW TP S FPH M3 5 5 7 1 5 NI 3 27 DisplayPort cable 1 13 SCRW PH INT TOO M3 9TP S C ZN 1 28 USB Type C cable 1 14 PCBA I F BD 1 29 USB Type C to Type A cabl...

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

Page 8: ... 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 4 screws on Rear Cover 2 Disassemble Rear Cover from middle frame Not...

Page 9: ... 9 3 Disassemble the bottom side 4 Disassemble Rear Cover from middle frame 3 1 Remove the tape which fixed USB FFC cable and USB wire on panel 2 Remove USB FFC cable and USB wire from I F BD ...

Page 10: ... BD 2 Remove Control BD wire from I F BD 5 1 Remove 4 black tapes from Panel 2 Remove long and short backlight wire from LED Driver BD 6 1 Unlock screws on Middle Frame a FHP screws 2 See Green mark Philips head screwdriver Torsion of FPH screw 3 5 4 0kg ...

Page 11: ...Main SHD from Panel 8 1 Take off Mylar from SPS BD 2 Unlock 9 PCBA screws 3 Disassemble LED Driver BD I F BD and SPS BD from Main SHD 4 Remove all cables and tapes from LED Driver BD I F BD and SPS BD Philips head screwdriver Torsion of PCBA screw 8 5 0 5Kg Torsion of Grounding screw 6 5 0 5Kg ...

Page 12: ... SPS BD wire to SPS BD 2 Insert AC wire to SPS BD 3 Assemble SPS BD to Main SHD 4 Insert LVDS cable to I F BD and paste 1 yellow tape to fix it 5 Insert LED Driver BD wire to I F BD 6 Insert SPS BD wire to I F BD 7 Assemble I F BD to Main SHD 8 Insert LED Driver BD wire to LED Driver BD 9 Assemble LED Driver BD to Main SHD 10 Lock 9 PCBA screws to fix PCBA on Main SHD 11 Assemble Mylar on SPS BD P...

Page 13: ...o fix it 2 Place Main SHD on Panel and fix it with Middle Frame by 2 FPH screws See Green mark Philips head screwdriver Torsion of FPH screw 3 5 4 0kg 3 1 Insert long and short backlight wire to LED Driver BD 2 Paste 4 black tapes to fix backlight wire on Panel ...

Page 14: ... Insert Control BD wire to I F BD 4 Insert Sensor BD wire to I F BD 4 1 Insert USB FFC cable and USB wire to I F BD 2 Paste 1 tape to fix USB FFC cable and USB wire on panel 3 Assemble Rear Cover with panel ...

Page 15: ...ks fully into the stand slot b Lift the screw handle and turn the screw clockwise c After fully tightening the screw fold the screw handle flat within the recess 7 Attach the Stand assembly to the Monitor a Fit the two tabs on the upper part of the stand to the groove on the back of the monitor b Press the stand down till it snaps into place ...

Page 16: ... 16 5 Trouble shooting instructions ...

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