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Inspiron 14 7445 2-in-1 Owner's Manual

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Removing the system board

CAUTION:The information in this 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 wireless card.
  5. Remove the M.2 2230 solid-state drive.
  6. Remove the fan.
  7. Remove the heatsink.
  8. Remove the display assembly.

About this task

The following image indicates the connectors on your system board.
Figure 1. Connectors on the system board
Image: Connectors on the system board
  1. Fan-cable connector (FN1)
  2. M.2 wireless-card connector
  3. Display-cable connector(LCD)
  4. Memory module connector
  5. Keyboard-backlight cable connector(KBBL1)
  6. Keyboard-cable connector (KB1)
  7. Battery-cable connector (BATT1)
  8. Touchpad-cable connector (TP1)
  9. Speaker-cable connector (SPK1)
  10. I/O-board cable connector (IOBD1)
  11. M.2 solid-state drive connector (SSD1)

The following images indicate the location of the system board and provide a visual representation of the removal procedure.

Steps

Figure 2. Removing the screws on the right hinge
Image:Removing the screws on the right hinge

  1. Remove the three screws (M2.5x5) that secure the right display hinge to the palm-rest and keyboard assembly.

Figure 3. Removing the cable connectors
Image: Remove the cable connectors from the system board

  1. Lift the I/O-board cable-connector (IOBD1) latch and disconnect the I/O-board cable from the system board.
  2. Disconnect the speaker cable from the speaker-cable connector (SPK1) on the system board.
  3. Lift the latch and disconnect the touchpad cable from the touchpad-cable connector (TP1) on the system board.
  4. Lift the latch and disconnect the keyboard cable from the keyboard-cable connector (KB1) on the system board.
  5. Lift the latch and disconnect the keyboard-backlight cable from the keyboard-backlit cable connector (KBBL1) on the system board.

Figure 4. Removing the USB-C bracket and the system board
Image: Removing the USB-C bracket and system board

  1. Remove the two screws (M2x4) that secure the USB Type-C bracket to the system board.
  2. Lift the USB Type-C bracket off the system board.
  3. Remove the two screws (M2x2) that secure the system board to the palm-rest and keyboard assembly.
  4. Lift the system board off the palm-rest and keyboard assembly.

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