Dell U2520DR Service Manual
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Dell U2520DR Service Manual

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Service Manual–U2520DB/ U2520DRB
Version: 02
Date:2021/10/08
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Summary of Contents for Dell U2520DR

  • Page 1 Service Manual–U2520DB/ U2520DRB Version: 02 Date:2021/10/08 - 1 -...

  • Page 2: Table Of Contents

    Content Index 1. General Safety Instructions ..................3 1.1 SAFETY: General Safety ..................3 1.2 SAFETY: General Power Safety ................5 2. Exploded view diagram with list of items ..............6 3. Wiring connectivity diagram ..................8 4. How to connect and disconnect power cable/ connectivity cable......9 5.

  • Page 3: General Safety Instructions

    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...
  • Page 4 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.

  • Page 5: Safety: General Power Safety

    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. ...

  • Page 6: Exploded View Diagram With List Of Items

    2. Exploded view diagram with list of items - 6 -...
  • Page 7 USB Type-C to Type-A cable See “NOTE" NOTE: For replacement of power cord, connectivity cable and external power supply (if applicable), contact Dell: 1. Go to https://www.dell.com/support. 2. Verify your country or region in the Choose A Country/Region drop-down menu at the bottom-right corner of the page.

  • Page 8: Wiring Connectivity Diagram

    3. Wiring connectivity diagram Wire 1 FFC 1 Wire 2 Wire 3 Wire 4 Wire 5 Wire 6 FFC 2 FFC 3 - 8 -...

  • Page 9: How To Connect And Disconnect Power Cable/ Connectivity Cable

    4. How to connect and disconnect power cable/ connectivity cable WARNING: To change power cable/ connectivity cable, switch off power before unplugging the cable and replugging in required cable. Connect/ disconnecting the DisplayPort cable and Power cable Connecting/ disconnecting the HDMI cable and Power cable - 9 -...
  • Page 10 Connecting/ disconnecting the USB Type-C cable and Power cable - 10 -...

  • Page 11: Disassembly And Assembly Procedures

    5. Disassembly and Assembly Procedures NOTE: This “Disassembly and Assembly Procedures” is for EMEA only, not for other regions. Please note that Dell will deem warranty void if any disassembly is done on the monitors. 5.1 Disassembly SOP Preparation before disassemble 1.
  • Page 12 2) Disassemble the Left/Right side 3) Disassemble the bottom side 4) Disassemble Rear Cover from middle frame. 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 - 12 -...
  • Page 13 1. Remove Sensor BD wire from I/F BD and Sensor BD 2. Remove Control BD wire from I/F BD 1. Remove 4 black tapes from Panel 2. Remove long and short backlight wire from LED Driver BD 1. Unlock screws on Philips-head Middle Frame screwdriver...
  • Page 14 1. Tear off the yellow tape from Panel and disassemble LVDS cable from Panel 2. Take off Main SHD from Panel 1. Take off Mylar from Philips-head SPS BD screwdriver Torsion of PCBA screw: 8.5±0.5Kg Torsion of 2. Unlock 9 PCBA Grounding screws screw:...

  • Page 15: Assembly Sop

    5.2 Assembly SOP Preparation before assemble 1. Clean the room for work 2. Identify the area for material 3. 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...
  • Page 16 1. Insert LVDS cable to panel and Philips- paste 1 yellow tape to fix it head screwdriver Torsion of FPH screw: 3.5-4.0kg 2. Place Main SHD on Panel and fix it with Middle Frame by 2 FPH screws (See Green mark) 1.
  • Page 17 3. Insert Control BD wire to I/F BD 4. Insert Sensor BD wire to I/F BD 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.
  • Page 18 1. Lock 4 Rear Cover screws Philips- head screwdriver Torsion of Rear Cover screw: 11±1Kg Assemble the Stand: a. Insert the stand base blocks 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.

  • Page 19: Trouble Shooting Instructions

    6. Trouble shooting instructions - 19 -...
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