Recommended tools......................................................................................................................................................... 28
Screw list.............................................................................................................................................................................29
Major components of Dell 14 Plus DB14250............................................................................................................... 29
Chapter 5: Removing and installing Customer Replaceable Units (CRUs).................................... 32
Base cover.......................................................................................................................................................................... 32
Removing the base cover..........................................................................................................................................32
Installing the base cover............................................................................................................................................ 35
Battery................................................................................................................................................................................. 37
Rechargeable Li-ion battery precautions...............................................................................................................37
Removing the battery.................................................................................................................................................38
Installing the battery...................................................................................................................................................39
Battery cable...................................................................................................................................................................... 40
Removing the battery cable......................................................................................................................................40
Installing the battery cable........................................................................................................................................40
Solid State Drive (SSD)....................................................................................................................................................41
Removing the M.2 2230 solid state drive.............................................................................................................. 41
Installing the M.2 2230 solid state drive................................................................................................................42
Fan........................................................................................................................................................................................ 44
Removing the fan........................................................................................................................................................ 44
Installing the fan.......................................................................................................................................................... 44
Wireless card...................................................................................................................................................................... 45
Removing the wireless card......................................................................................................................................45
Installing the wireless card........................................................................................................................................ 46
Chapter 6: Removing and installing Field Replaceable Units (FRUs)............................................ 49
Display assembly................................................................................................................................................................49
Removing the display assembly............................................................................................................................... 49
Installing the display assembly.................................................................................................................................. 51
I/O-board cable ................................................................................................................................................................ 53
Removing the I/O-board cable................................................................................................................................ 53
Installing the I/O-board cable...................................................................................................................................54
I/O board.............................................................................................................................................................................55
Removing the I/O board............................................................................................................................................55
Installing the I/O board.............................................................................................................................................. 56
Speaker assembly..............................................................................................................................................................57
Removing the speaker assembly..............................................................................................................................57
Installing the speaker assembly................................................................................................................................59
Heat sink..............................................................................................................................................................................60
Removing the heat sink ............................................................................................................................................ 60
Installing the heat sink................................................................................................................................................ 61
System board..................................................................................................................................................................... 62
Removing the system board..................................................................................................................................... 62
Installing the system board....................................................................................................................................... 66
Power button...................................................................................................................................................................... 71
Removing the power button .....................................................................................................................................71
Installing the power button ...................................................................................................................................... 72
Power button with optional fingerprint reader...........................................................................................................73
Removing the power button with fingerprint reader.......................................................................................... 73
4
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