Dell Latitude 7390 Owner's Manual page 4

Installing memory module.......................................................................................................................................... 26
Heat sink .............................................................................................................................................................................27
Removing heat sink assembly................................................................................................................................... 27
Installing heat sink assembly..................................................................................................................................... 27
Power connector port...................................................................................................................................................... 28
Removing power connector port.............................................................................................................................28
Installing power connector port...............................................................................................................................29
LED board............................................................................................................................................................................29
Removing LED board.................................................................................................................................................. 29
Installing LED board.................................................................................................................................................... 30
Smart card module............................................................................................................................................................30
Removing smart card cage....................................................................................................................................... 30
Installing smart card cage..........................................................................................................................................32
Touchpad.............................................................................................................................................................................32
Removing touchpad buttons board.........................................................................................................................32
Installing touchpad buttons board...........................................................................................................................34
Display Assembly............................................................................................................................................................... 34
Removing display assembly.......................................................................................................................................34
Installing display assembly......................................................................................................................................... 36
Display hinge cap............................................................................................................................................................... 37
Removing display hinge Cap .................................................................................................................................... 37
Installing display hinge Cap ...................................................................................................................................... 37
System board..................................................................................................................................................................... 38
Removing system board............................................................................................................................................ 38
Installing system board...............................................................................................................................................42
Keyboard assembly........................................................................................................................................................... 43
Installing keyboard assembly.....................................................................................................................................43
Removing keyboard assembly.................................................................................................................................. 43
Keyboard lattice and Keyboard...................................................................................................................................... 46
Removing keyboard from keyboard tray................................................................................................................46
Installing keyboard to keyboard tray.......................................................................................................................46
Palm rest..............................................................................................................................................................................47
Replacing palm rest ....................................................................................................................................................47
Chapter 3: Technology and components...................................................................................... 49
USB features...................................................................................................................................................................... 49
Thunderbolt over USB Type-C................................................................................................................................ 50
Thunderbolt Icons........................................................................................................................................................ 51
Advantages of Displayport over USB Type-C.......................................................................................................51
HDMI 1.4.............................................................................................................................................................................. 52
Chapter 4: System specifications................................................................................................ 53
System specifications...................................................................................................................................................... 53
Processor specifications..................................................................................................................................................53
Memory specifications..................................................................................................................................................... 53
Video specifications.......................................................................................................................................................... 54
Audio specifications.......................................................................................................................................................... 54
Battery specifications...................................................................................................................................................... 54
AC adapter specifications............................................................................................................................................... 55
4 Contents