Maintenance and Service Guide

Packaging and transporting guidelines .............................................................................................................. 31
5 Removal and replacement procedures for Customer Self-Repair parts ............................................................. 32
Component replacement procedures .................................................................................................................. 32
Preparation for disassembly ............................................................................................................. 32
Bottom cover ..................................................................................................................................... 32
Solid-state drive (SSD) ...................................................................................................................... 34
Memory modules ............................................................................................................................... 35
WLAN/Bluetooth combo card ............................................................................................................ 36
WWAN module ................................................................................................................................... 38
Keyboard ........................................................................................................................................... 40
6 Removal and replacement procedures for authorized service provider parts .................................................... 43
Component replacement procedures .................................................................................................................. 43
Battery ............................................................................................................................................... 44
Heat sink assembly ........................................................................................................................... 46
RTC battery ........................................................................................................................................ 49
USB board .......................................................................................................................................... 50
RJ-45 board with bracket .................................................................................................................. 51
Power button board .......................................................................................................................... 52
Speaker assembly ............................................................................................................................. 53
Touchpad ........................................................................................................................................... 54
Pointing stick module ........................................................................................................................ 56
NFC module ....................................................................................................................................... 57
Smart card reader .............................................................................................................................. 58
Fan ..................................................................................................................................................... 59
System board .................................................................................................................................... 61
Fingerprint reader assembly ............................................................................................................. 64
Display assembly ............................................................................................................................... 65
Top cover ........................................................................................................................................... 75
7 Interpreting system validation diagnostic front panel LEDs and audible codes ................................................. 76
8 Troubleshooting guide ................................................................................................................................. 78
Resources ............................................................................................................................................................. 79
General troubleshooting steps ............................................................................................................................ 79
Identify the issue ............................................................................................................................... 80
1. Understand the issue .................................................................................................. 80
Boot up sequence ......................................................................................... 80
Failure classication ..................................................................................... 80
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