Dell Inspiron 15 3521 Service Manual page 4

Removing the system board thermal plate .......................................................................................................... 38
Installing the system board thermal plate ............................................................................................................ 38
Touchpad.............................................................................................................................................................................39
Removing the touchpad ........................................................................................................................................... 39
Installing the touchpad ..............................................................................................................................................40
Display assembly................................................................................................................................................................42
Removing the display assembly .............................................................................................................................. 42
Installing the display assembly ................................................................................................................................ 44
Display hinge caps............................................................................................................................................................. 47
Removing the display hinge caps ............................................................................................................................47
Installing the display hinge caps ............................................................................................................................. 48
Display bezel.......................................................................................................................................................................50
Removing the display bezel ..................................................................................................................................... 50
Installing the display bezel ........................................................................................................................................ 51
Display hinges.....................................................................................................................................................................52
Removing the display hinges ................................................................................................................................... 52
Installing the display hinges ..................................................................................................................................... 53
Display panel.......................................................................................................................................................................54
Removing the display panel ..................................................................................................................................... 54
Installing the display panel ....................................................................................................................................... 56
Camera.................................................................................................................................................................................58
Removing the camera ............................................................................................................................................... 58
Installing the camera ................................................................................................................................................. 59
Display cable.......................................................................................................................................................................60
Removing the display cable ..................................................................................................................................... 60
Installing the display cable ........................................................................................................................................ 61
System board..................................................................................................................................................................... 63
Removing the system board ....................................................................................................................................63
Installing the system board ...................................................................................................................................... 66
I/O daughter-board flexible flat cable .........................................................................................................................70
Removing the I/O daughter-board flexible flat cable ........................................................................................70
Installing the I/O daughter-board flexible flat cable ...........................................................................................71
I/O daughter-board...........................................................................................................................................................72
Removing the I/O daughter-board ........................................................................................................................ 72
Installing the I/O daughter-board ...........................................................................................................................73
Power button......................................................................................................................................................................75
Removing the power button ....................................................................................................................................75
Installing the power button ...................................................................................................................................... 75
Power button with optional fingerprint reader.......................................................................................................... 76
Removing the power button with optional fingerprint reader .........................................................................76
Installing the power button with optional fingerprint reader ........................................................................... 77
Power-adapter port.......................................................................................................................................................... 78
Removing the power-adapter port ........................................................................................................................ 78
Installing the power-adapter port ...........................................................................................................................79
Display back-cover and antenna assembly................................................................................................................. 80
Removing the display back-cover and antenna assembly ................................................................................80
Installing the display back-cover and antenna assembly ...................................................................................81
Palm-rest and keyboard assembly.................................................................................................................................82
Removing the palm-rest and keyboard assembly ...............................................................................................82
Installing the palm-rest and keyboard assembly ................................................................................................. 83
4 Contents