Dell UltraSharp U3425WE Service Manual
Dell UltraSharp U3425WE Service Manual

Dell UltraSharp U3425WE Service Manual

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Service Manual–U3425WEB
Version: 01
Date:2023/11/09
- 1 -

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Table of Contents
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Summary of Contents for Dell UltraSharp U3425WE

  • Page 1 Service Manual–U3425WEB Version: 01 Date:2023/11/09 - 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 ...
  • Page 5: Safety: General Power Safety

     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 ...
  • Page 6: Exploded View Diagram With List Of Items

    2. Exploded view diagram with list of items - 6 -...
  • Page 7 USB-A to USB-C Gen2 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 Wire2 FFC 4 FFC 3 FFC 1 FFC 2 Wire1 - 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 (DisplayPort to DisplayPort) cable and Power cable Connecting/ disconnecting the HDMI cable and Power cable - 9 -...
  • Page 10 Connecting/ disconnecting the USB-A to USB-C cable and Power cable Connecting/ disconnecting the Thunderbolt™ 4 passive cable and Power cable - 10 -...
  • Page 11 Connecting/ disconnecting the monitor for RJ45 cable (optional) and Power cable - 11 -...
  • Page 12: 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 13 Pull out “Control board FFC” from Unplug “Control board FFC” from “Interface board” to take off “Rear “Control board” Cover” Tear off “MYLAR LENS” from “Control board” Tear off 2 tapes from “Rear Cover” Unplug “Backlight wire” from “LED Driver board” (See pink mark) Tear off “Control board FFC”...
  • Page 14 Tear off below mylars from “Main Tear off an acetate tape from “USB Shielding” board wire” and “Panel” a. MYLAR BL Unplug 2 “USB board FFC” and “USB b. MYLAR USB Board wire” from “Interface board” c. MYLAR SPK d. MYLAR ALS Unlock 1 screw to disassemble “USB board”...
  • Page 15 Disassemble a “GASKET” from “Panel” Take off “Main Shielding” from “Panel” Unlock 4 screws to disassemble “Main Shielding” from “Panel” Unlock 19 screws to disassemble “Middle Frame” from “Panel” (Screw Torque: 4.5-5.5 Kgf) (Screw Torque: 3.5-4.0 Kgf) Tear off an acetate tape from “FFC Disassemble 6 pieces of “Boss Panel”...
  • Page 16 Unlock 10 PCBA screws to Unlock 3 screws to disassemble disassemble “Interface board”, “Power “ Thunderbolt board” from “Interface board” and “LED Driver board” from board” “Main Shielding” Take off “ board” from Thunderbolt “Interface board” (Screw Torque: 8.5±1Kgf) Unplug wires from “Interface board”, “Power board”...
  • Page 17: 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) Gloves 4) Cleaning cloth 5) ESD protection 6) Curve cushion Assemble “Thunderbolt...
  • Page 18 Assemble “Middle Frame” to “Panel” Place “Main Shielding” on “Panel” and lock 4 screws to fix it on “Panel” Lock 19 screws to fix “Middle Frame” with “Panel” (Screw Torque: 4.5-5.5 Kgf) (Screw Torque: 3.5-4.0 Kgf) Align with “Middle Frame” to assemble a “Gasket”...
  • Page 19 Assemble “USB board” to “Middle Assemble “Sensor board” into “Middle Frame” and fix it by screw*1 Frame” Insert 2 “USB board FFC” and “USB Insert “Ambient Light Sensor FFC” into board Wire” into “Interface board” “Interface board” Paste an acetate tape to fix “USB board Adhere “Ambient Light Sensor FFC”...
  • Page 20 Assemble “Speaker” to “Middle Frame” Assemble “Control board” to “Rear and fix it by screw*6 (See yellow mark) Cover” and fix it by screws*3 Insert “Speaker Wire” into “Interface Adhere “Control board FFC” on “Rear board” (See red mark) Cover” and fix it by 2 tapes Adhere 4 tapes to fix “Speaker Wire”...
  • Page 21 Assemble “Rear Cover” with “Middle Attach the stand assembly to the Frame” monitor a. Fit the two tabs on the upper part of the stand to the groove on the back of the display b. Press the stand down till it snaps into place Fix “Rear Cover”...
  • Page 22: Trouble Shooting Instructions

    6. Trouble shooting instructions - 22 -...
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Table of Contents