Dell Latitude 7400 2-in-1 Service Manual - Page 4

Troubleshooting, Getting help

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Page 4 highlights

Installing the fan...47 Speakers...51 Removing the speakers...51 Installing the speakers...52 Heatsink...54 Removing the heatsink...54 Installing the heatsink...58 Display assembly...62 Removing the display assembly...62 Installing the display assembly...65 Battery...67 Lithium-ion battery precautions...67 Removing the battery...68 Installing the battery...70 System board...72 Removing the system board...72 Installing the system board...77 Keyboard...82 Removing the keyboard...82 Installing the keyboard...87 Palmrest assembly...91 Chapter 5: Troubleshooting...94 Enhanced Pre-Boot System Assessment (ePSA) diagnostics 94 Running the ePSA diagnostics...94 System diagnostic lights...95 Flashing BIOS (USB key)...95 Flashing the BIOS...96 Backup media and recovery options...96 WiFi power cycle...96 Flea power release...97 Chapter 6: Getting help...98 Contacting Dell...98 4 Contents

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Installing the fan
...........................................................................................................................................................
47
Speakers
...............................................................................................................................................................................
51
Removing the speakers
..............................................................................................................................................
51
Installing the speakers
................................................................................................................................................
52
Heatsink
...............................................................................................................................................................................
54
Removing the heatsink
...............................................................................................................................................
54
Installing the heatsink
.................................................................................................................................................
58
Display assembly
................................................................................................................................................................
62
Removing the display assembly
...............................................................................................................................
62
Installing the display assembly
.................................................................................................................................
65
Battery
.................................................................................................................................................................................
67
Lithium-ion battery precautions
...............................................................................................................................
67
Removing the battery
.................................................................................................................................................
68
Installing the battery
...................................................................................................................................................
70
System board
......................................................................................................................................................................
72
Removing the system board
.....................................................................................................................................
72
Installing the system board
........................................................................................................................................
77
Keyboard
..............................................................................................................................................................................
82
Removing the keyboard
.............................................................................................................................................
82
Installing the keyboard
................................................................................................................................................
87
Palmrest assembly
.............................................................................................................................................................
91
Chapter 5: Troubleshooting
.........................................................................................................
94
Enhanced Pre-Boot System Assessment (ePSA) diagnostics
...............................................................................
94
Running the ePSA diagnostics
.................................................................................................................................
94
System diagnostic lights
..................................................................................................................................................
95
Flashing BIOS (USB key)
.................................................................................................................................................
95
Flashing the BIOS
..............................................................................................................................................................
96
Backup media and recovery options
.............................................................................................................................
96
WiFi power cycle
...............................................................................................................................................................
96
Flea power release
............................................................................................................................................................
97
Chapter 6: Getting help
...............................................................................................................
98
Contacting Dell
..................................................................................................................................................................
98
4
Contents