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 . . . . . 19
What to do first . . . . . . . . . . . . . . . 19
CRU list . . . . . . . . . . . . . . . . . . 20
Chapter 3. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 21
Locate FRUs and CRUs . . . . . . . . . . . 21
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 27
Service tools . . . . . . . . . . . . . . . . 27
General guidelines. . . . . . . . . . . . . . 27
Remove the lower case . . . . . . . . . . . . 28
Remove the battery pack . . . . . . . . . . . 29
Remove the solid-state drive (SSD) . . . . . . . 30
Remove the Wi-Fi card . . . . . . . . . . . . 31
Remove the touchpad board cable . . . . . . . 31
Remove the I/O board bracket . . . . . . . . . 32
Remove the I/O board . . . . . . . . . . . . 33
Remove the heat sink . . . . . . . . . . . . 34
Remove the fan . . . . . . . . . . . . . . . 35
Remove the system board and the I/O board
cable . . . . . . . . . . . . . . . . . . . 36
Use a Golden Key U1 tool to flash-write key id
information . . . . . . . . . . . . . . . 38
Remove the speakers . . . . . . . . . . . . 38
Remove the LCD module . . . . . . . . . . . 39
Remove the upper case. . . . . . . . . . . . 40
Disassemble the LCD module . . . . . . . . . 41
Remove the hinge cover. . . . . . . . . . 41
Remove the strip cover . . . . . . . . . . 42
Remove the LCD panel and EDP cable . . . . 42
Remove the microphone rubbers . . . . . . 44
Remove the camera . . . . . . . . . . . 45
Remove the camera cable . . . . . . . . . 45
Remove the LCD cover . . . . . . . . . . 46
Appendix A. Label locations. . . . . . 49
Trademarks . . . . . . . . . . . . . . . . . li
© Copyright Lenovo 2023 i