Dell U2520DRB Simplified Service Manual
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Dell U2520DRB Simplified Service Manual

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Simplified Service Manual–U2520DRB
Version: 01
Date:2021/08/23
- 1 -

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Summary of Contents for Dell U2520DRB

  • Page 1 Simplified Service Manual–U2520DRB Version: 01 Date:2021/08/23 - 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 ..................7 4. Disassembly and Assembly Procedures ..............8 4.1 Disassembly SOP ....................

  • 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 Item Description Q'ty Item Description Q'ty Panel PCBA LED DRV BD ASSY MF PCBA SENSOR BD BTN PWR WIRE AC+3/3P SCRW TP-B FPH M2*2.4L ZN #MYLAR PWR BD PCBA CTRL BD #ASSY SHD MAIN MYLAR CTRL BD #PCBA USB BD SCRW TP-B FPH M2*4L B-ZN...

  • Page 7: 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 - 7 -...

  • Page 8: Disassembly And Assembly Procedures

    4. Disassembly and Assembly Procedures 4.1 Disassembly SOP Preparation before disassemble 1. Clean the room for disassemble 2. Identify the area for monitor 3. Check the position that the monitors be placed and the quantity of the monitor; prepare the area for material flow;...
  • Page 9 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 - 9 -...
  • Page 10 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 11 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 12: Assembly Sop

    4.2 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 13 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 14 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 15 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 16: Trouble Shooting Instructions

    5. Trouble shooting instructions - 16 -...
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