Dell Pro 14 PC14250 Owner's Manual

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Removing the system board (For computers shipped with smart card reader)

CAUTION:The information in this removal section is intended for authorized service technicians only.

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the base cover.
  3. Remove the battery.
  4. Remove the memory module.
  5. Remove the SSD.
  6. Remove the wireless card.
  7. Remove the fan.
  8. Remove the heat sink.
  9. Remove the display assembly.

About this task

The following image indicates the connectors on your system board.
Figure 1. System-board connectors
Image: System-board connectors
  1. Fan-cable connector (FAN1)
  2. Display-cable connector (LCD1)
  3. DC-in port connector (DCIN1)
  4. Speaker-cable connector (SPK1)
  5. Memory-module connectors (DM1 AND DM2)
  6. Battery-cable connector (BATT1)
  7. Wireless-card connector (WLAN1)
  8. Touchpad-cable connector (TPAD1)
  9. USH board FPC connector
  10. SSD slot (SSD1)
  11. vPro cable connector
  12. I/O-board cable connector (IO)
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
Figure 2. Removing the system board
Image: Removing the system board
Figure 3. Removing the system board
Image: Removing the system board

Steps

  1. Remove the two screws (M2.5x5) that secure the left display-hinge to the palm-rest assembly.
  2. Lift the left display-hinge in an upward direction away from the system board.
  3. Disconnect the following cables from the respective connectors on the system board:
    • Display cable (EDP)
    • Power-adapter port cable
    • Speaker cable
    • Touchpad cable
    • USH board FPC
    • vPro cable
    • I/O-board cable
  4. Remove the two screws (M2x5) that secure the Type-C module to the system board.
  5. Remove the three screws (M2x3) that secure the system board to the palm-rest assembly.
  6. Lift the system board off the palm-rest assembly.

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