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Inspiron 16 7620 2-in-1 Service Manual

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Removing the system board

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the base cover.
  3. Remove the memory.
  4. Remove the 2230 solid-state drive or 2280 solid-state drive, whichever applicable.
  5. Remove the wireless card.
  6. Remove the heat sink without discrete graphics or heat sink with discrete graphics, whichever applicable.
  7. Remove the display board.

About this task

The following image indicates the connectors on your system board.

System board connectors

  1. Display-backlight cable connnector
  2. Display-cable connector
  3. Keyboard backlight-cable connector
  4. Keyboard-cable connector
  5. Touchpad-cable connector
  6. Battery-cable connector
  7. Front-speaker cable connector
  8. Side-speaker board cable connector
  9. I/O-board cable connector
  10. Fan-cable connector

The following image(s) indicate the location of the system board and provides a visual representation of the removal procedure.

Removing the system board

Steps

  1. Lift the latch and disconnect the display-backlight cable from the system board.
  2. Peel the tape that secures the display-backlight cable off the system board.
  3. Remove the three screws (M2.5x4) that secure the right-display hinge to the I/O board.
  4. Pry open the right-display hinge at an angle of 90 degrees.
  5. Peel the tape that secures the display-cable connector latch to the system board.
  6. Lift the latch and disconnect the display cable from the system board.
  7. Peel the tape that covers the USB Type-C bracket.
  8. Remove the two screws (M2x4) that secure the USB Type-C bracket to the system board.
  9. Lift the USB Type-C bracket off the system board.
  10. Lift the latch and disconnect the keyboard-backlight cable from the system board.
  11. Lift the latch and disconnect the keyboard cable from the system board.
  12. Lift the latch and disconnect the touchpad cable from the system board.
  13. Peel the tape that secures the battery cable to the system board.
  14. Disconnect the battery cable from the system board.
  15. Disconnect the front-speaker cable from the system board.
  16. Remove the front-speaker cable from the routing guides on the system board.
  17. Using the pull tab, disconnect the side-speaker board cable from the system board.
  18. Peel the tape that secures the I/O-board cable connector latch to the system board.
  19. Lift the latch and disconnect the I/O-board cable from the system board.
  20. Peel the tape that secures the fan cable to the system board.
  21. Disconnect the fan cable from the system board.
  22. Remove the screw (M2x3) that secures the system board to the palm-rest and keyboard assembly.
  23. Remove the screw (M2x2) that secures the system board to the palm-rest and keyboard assembly.
  24. Lift the system board off the palm-rest and keyboard assembly.

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