Dell Precision 7740 Service Manual page 4

Installing SIM card.......................................................................................................................................................40
Solid State Drive.................................................................................................................................................................41
Removing the M.2 Solid State Drive-SSD module............................................................................................ 41
Installing the M.2 SSD module................................................................................................................................. 44
2.5" Hard drive................................................................................................................................................................... 47
Removing the hard drive assembly......................................................................................................................... 47
Installing the hard drive assembly........................................................................................................................... 48
Hard drive interposer board............................................................................................................................................49
Removing the hard drive interposer board........................................................................................................... 49
Installing the hard drive interposer board............................................................................................................. 50
Coin-cell battery.................................................................................................................................................................51
Removing the coin cell battery................................................................................................................................. 51
Installing the coin cell battery.................................................................................................................................. 52
Power connector port......................................................................................................................................................53
Removing the power connector port..................................................................................................................... 53
Installing the power connector port....................................................................................................................... 55
Palm rest............................................................................................................................................................................. 57
Removing the palmrest.............................................................................................................................................. 57
Installing the palmrest................................................................................................................................................ 60
Touchpad button............................................................................................................................................................... 62
Removing the Touchpad buttons............................................................................................................................ 62
Installing the Touchpad button................................................................................................................................ 63
Smart card cage................................................................................................................................................................ 64
Removing the smart card cage................................................................................................................................ 64
Installing the smart card cage.................................................................................................................................. 65
Speaker................................................................................................................................................................................66
Removing the speakers ........................................................................................................................................ 66
Installing the speakers................................................................................................................................................ 67
LED board........................................................................................................................................................................... 68
Removing the LED board...........................................................................................................................................68
Installing the LED board.............................................................................................................................................69
Heat sink .............................................................................................................................................................................70
Removing the heat sink assembly........................................................................................................................... 70
Installing the heat sink assembly..............................................................................................................................73
Graphics card..................................................................................................................................................................... 75
Removing the graphics card..................................................................................................................................... 75
Installing the graphics card....................................................................................................................................... 76
System board......................................................................................................................................................................77
Removing the system board..................................................................................................................................... 77
Installing the system board....................................................................................................................................... 80
Display assembly................................................................................................................................................................83
Removing the display assembly............................................................................................................................... 83
Installing the display assembly..................................................................................................................................86
Display bezel....................................................................................................................................................................... 88
Removing the display bezel.......................................................................................................................................88
Installing the display bezel.........................................................................................................................................89
Display panel.......................................................................................................................................................................90
Removing the display panel...................................................................................................................................... 90
Installing the display panel......................................................................................................................................... 91
Display hinges.....................................................................................................................................................................92
4 Contents