Dell Latitude 7390 Owner's Manual page 40

5. Disconnect the cables:
NOTE: To disconnect the speaker, LED board, coin cell battery and the power connector port cables, use a plastic
scribe to release the cables from the connectors. Do not pull the cable as it may result in breakage
a. speaker cable [1]
b. LED board cable [2]
c. coin cell battery cable [3]
d. touchpad cable and USH board cable [4]
e. power connector port [5]
40 Removing and installing components