Dell Latitude 7400 2-in-1 Service Manual page 76

12 Remove the battery.
Steps
1 Disconnect the coin cell cable from the system board [1] and remove the coin cell from the system board [2].
2 Peel off the tape on the display cable connector of the system board [3].
3 Pry the retention clips on both sides of the display cable connector, to flip open the latch [4].
4
CAUTION: The connector for the display cable features an actuator that locks it in place on the system board. Flip open
the latch to disconnect the display cable from the system board. Grasp the left and right sides of the cable's connector
head and disconnect the display cable from the system board in a direct upward motion to prevent damage to the
connector's pins.
Disconnect the display cable from the system board [5].
5 Disconnect the following power button cable from the system board [1].
6 Disconnect the USH board cable [2] and keyboard with backlight cable [3] from the system board.
7 Disconnect the touchpad cable [4] and LED board cable [5] from the system board.
76 Removing and installing components