Lenovo 20WE006QGE-CAMPUS, Hardware Maintenance Manual

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Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. General checkout . . . . . 21
What to do first . . . . . . . . . . . . . . . 21
CRU list . . . . . . . . . . . . . . . . . . 22
Chapter 3. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 23
Locate FRUs and CRUs . . . . . . . . . . . 23
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 27
Service tools . . . . . . . . . . . . . . . . 27
General guidelines . . . . . . . . . . . . . . 27
Removal procedure . . . . . . . . . . . . . 28
Remove the Lenovo Smart Pen . . . . . . . 28
Remove the lower case . . . . . . . . . . 28
Remove the battery pack . . . . . . . . . 29
Remove the solid-state drive (SSD) . . . . . 30
Remove the Wi-Fi card . . . . . . . . . . 32
Remove the heat sink. . . . . . . . . . . 33
Remove the fan . . . . . . . . . . . . . 33
Remove the memory module . . . . . . . . 34
Remove the I/O bracket (left) . . . . . . . . 35
Remove the I/O board bracket (right) . . . . . 36
Remove the CMOS battery
. . . . . . . . 37
Remove the Lenovo Smart Pen holder . . . . 38
Remove the I/O board with cable . . . . . . 39
Remove the speakers. . . . . . . . . . . 39
Remove the Lenovo Smart Pen charger
cable . . . . . . . . . . . . . . . . . 40
Remove the fingerprint board. . . . . . . . 41
Remove the system board . . . . . . . . . 41
Remove the LCD unit . . . . . . . . . . . 43
Remove the upper case (with keyboard and
touchpad) . . . . . . . . . . . . . . . 44
Disassemble the LCD unit . . . . . . . . . 45
Appendix A. Label locations. . . . . . 53
Trademarks . . . . . . . . . . . . . . . . . lv
© Copyright Lenovo 2020
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