Dell Inspiron 15-5578 Service Manual page 57

Figure 30. Removing the system board cables
1. fan cable
3. tape (2)
5. touch-screen board cable
7. system board
4. Disconnect the speaker cable from the system board.
5. Using the pull tab, disconnect the hard-drive cable from the system board.
6. Open the latches and disconnect the keyboard cable and the I/O-board cable from the system board.
2. latches (2)
4. display cable
6. power-adapter port cable
Removing the system board 57