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. Idetifying FRUs (CRUs) . . 23
Locate FRUs and CRUs . . . . . . . . . . . 23
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 29
Service tools . . . . . . . . . . . . . . . . 29
General guidelines. . . . . . . . . . . . . . 29
Remove the lower case . . . . . . . . . . . . 30
Remove the battery pack . . . . . . . . . . . 31
Remove the M.2 solid-state drive . . . . . . . . 32
Remove the M.2 solid-state drive bracket. . . . . 34
Remove the Wi-Fi card . . . . . . . . . . . . 34
Remove the fan . . . . . . . . . . . . . . . 36
Remove the heatsink . . . . . . . . . . . . . 38
Remove the Type-C bracket . . . . . . . . . . 39
Remove the touchpad and touchpad mylar . . . . 40
Remove the fingerprint sensor and sensor
bracket . . . . . . . . . . . . . . . . . . 42
Remove the antenna cable . . . . . . . . . . 43
Remove the speakers . . . . . . . . . . . . 44
Remove the system board. . . . . . . . . . . 45
Remove the upper case assembly . . . . . . . 47
Remove the stripe cover . . . . . . . . . . . 49
Remove the LCD panel . . . . . . . . . . . . 50
Remove the EDP cable . . . . . . . . . . . . 54
Remove the microphone rubbers . . . . . . . . 55
Remove the sensor board and cable. . . . . . . 56
Remove the camera and camera cable . . . . . . 57
Remove the hinges . . . . . . . . . . . . . 58
Trademarks . . . . . . . . . . . . . . . . . lxi
© Copyright Lenovo 2020 i
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