Before working inside the tablet................................................................................................................................ 5
Safety precautions........................................................................................................................................................ 6
Electrostatic discharge—ESD protection............................................................................................................... 6
ESD field service kit ..................................................................................................................................................... 7
After working inside the tablet................................................................................................................................... 8
Before working inside the tablet.............................................................................................................................. 12
Safety precautions.......................................................................................................................................................12
Electrostatic discharge—ESD protection..............................................................................................................12
User warning guide...................................................................................................................................................... 13
ESD field service kit ....................................................................................................................................................13
After working inside the tablet................................................................................................................................. 14
Recommended tools..........................................................................................................................................................14
Screw list............................................................................................................................................................................. 15
Customer Replaceable Units (CRU) and Field Replaceable Units (FRU) list...................................................... 16
Disassembly and reassembly .......................................................................................................................................... 17
Batteries cover assembly........................................................................................................................................... 18
System cover................................................................................................................................................................ 21
Batteries........................................................................................................................................................................ 24
Subscriber Identification Module (SIM) card........................................................................................................27
Stylus..............................................................................................................................................................................28
Display assembly..........................................................................................................................................................30
SSD Heat sink...............................................................................................................................................................38
System fan.................................................................................................................................................................... 40
Solid-state drive...........................................................................................................................................................42
WLAN card....................................................................................................................................................................44
WWAN card.................................................................................................................................................................. 47
Microphone................................................................................................................................................................... 49
Front camera.................................................................................................................................................................51
Coin-cell battery..........................................................................................................................................................55
System board............................................................................................................................................................... 58
Rear Camera................................................................................................................................................................. 64
Micro serial port and power connector port.........................................................................................................66
Boot menu...........................................................................................................................................................................69
Navigation keys..................................................................................................................................................................69
Boot Sequence...................................................................................................................................................................70
Contents
Contents
3
Summary of Contents for Latitude 7220EX
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