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Dell P2421DC Simplified Service Manual
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Dell P2421DC Simplified Service Manual

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P2421DC
Service
Service
Service
Simplified

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Summary of Contents for Dell P2421DC

  • Page 1 P2421DC Service Service Service Simplified...

  • Page 2: Important Safety Notice

    Consequently, DELL has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by DELL must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.
  • Page 3 1. Exploded view diagram with list of items 2. Wiring connectivity diagram...

  • Page 4: Tools Required

    3. Tools Required 1.3Tools Required List the type and size of the tools that would typically can be used to disassemble the product to a point where components and materials requiring selective treatment can be removed. Tool Description: Screwdriver (Phillip head) #1 Screwdriver (Phillip head) #2 iii.

  • Page 5: Disassembly Procedures

    3.1Disassembly Procedures 1.1Disassembly Procedures Turn off power Wedge your fingers between the rear cover and Unplug external cables from product the middle bezel on the corners of the top side of the monitor to release the rear cover, then use Scraper to separate the rear cover in the below 3direction of the arrow.
  • Page 6 Disconnect all of the cables to separate the Tear out all the cable to remove the rear cover and power board and main board. put it on a protective cushion. Use a Philips-head screwdriver to remove 10 screws for unlocking the middle plastic bezel with the whole unit, and then remove the middle plastic bezel carefully.
  • Page 7 Use a Philips-head screwdriver to remove 3 screws for unlocking the bezel and the middle frame. (No.1~3 screw size=M2X2.5, Torque: 6± 1kgf.cm) Use a Philips-head screwdriver to remove 3 screws for unlocking the key board and the middle frame. (No.1~3 screw size=M2X2.5, Torque: 6± 1kgf.cm) The USB Board Use a Philips-head screwdriver to remove 1 screws to remove the USB board.
  • Page 8 3.2Assembly Procedures Use a Philips-head screwdriver to lock 1 screw to assemble the USB board. Connect the cables of the USB board (No.1 screw size=M3x6, Torque=4± 1kgf.cm) Use a Philips-head screwdriver to lock 3 screws for locking the key board and the middle frame. (No.1~3 screw size=M2X2.5, Torque: 6±...
  • Page 9 stick the mylar by hand and Use a Philips-head screwdriver to lock 9 screws for locking the main board and the adapter board Connect all the cable on the rear cover and put it on a protective cushion. Use a Philips-head screwdriver to lock 10 screws for locking the middle plastic bezel with the whole unit,.
  • Page 10 Assemble the stand .

  • Page 11: Troubleshooting Instructions

    4. Trouble shooting instructions...