Service Manual

Chapter 1: Working inside your computer...................................................................................... 6
Safety instructions.............................................................................................................................................................. 6
Before working inside your computer.......................................................................................................................6
Safety precautions.........................................................................................................................................................7
Electrostatic discharge—ESD protection................................................................................................................7
ESD field service kit ..................................................................................................................................................... 8
Transporting sensitive components.......................................................................................................................... 9
After working inside your computer..........................................................................................................................9
BitLocker..........................................................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of Vostro 3525................................................................................................................................ 11
Secure Digital (SD) Card..................................................................................................................................................13
Removing the Secure Digital card............................................................................................................................13
Installing the Secure Digital card..............................................................................................................................15
Base cover........................................................................................................................................................................... 16
Removing the base cover...........................................................................................................................................16
Installing the base cover............................................................................................................................................ 20
Battery................................................................................................................................................................................. 22
Lithium-ion battery precautions...............................................................................................................................22
Removing the 3-cell battery..................................................................................................................................... 23
Installing the 3-cell battery....................................................................................................................................... 24
Removing the 4-cell battery..................................................................................................................................... 25
Installing the 4-cell battery........................................................................................................................................27
Disconnecting the battery cable..............................................................................................................................28
Connecting the battery cable...................................................................................................................................29
Memory modules............................................................................................................................................................... 30
Removing the memory modules...............................................................................................................................30
Installing the memory modules..................................................................................................................................31
M.2 solid-state drive.........................................................................................................................................................32
Removing the M.2 2230 solid state drive..............................................................................................................32
Installing the M.2 2230 solid state drive................................................................................................................33
Removing the M.2 2280 solid state drive..............................................................................................................34
Installing the M.2 2280 solid state drive................................................................................................................35
Wireless card...................................................................................................................................................................... 36
Removing the wireless card......................................................................................................................................36
Installing the wireless card........................................................................................................................................ 37
Fan........................................................................................................................................................................................ 39
Removing the fan........................................................................................................................................................ 39
Installing the fan.......................................................................................................................................................... 40
Speakers...............................................................................................................................................................................41
Removing the speakers...............................................................................................................................................41
Contents
Contents 3