Table Of Contents - Lenovo 14w 81MQ Hardware Maintenance Manual

Contents
About this documentation . . . . . . . . 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 . . . . . . . . . . . . . . .
Checking the ac power adapter
CRU list . . . . . . . . . . . . . . . . . .
Chapter 3. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 25
Locating FRUs and CRUs . . . . . . . . . . .
Major FRUs and CRUs . . . . . . . . . .
LCD FRUs and CRUs . . . . . . . . . . .
Miscellaneous parts . . . . . . . . . . .
Looking up the FRU information . . . . . . . .
© Copyright Lenovo 2019
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Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 31
General guidelines. . . . . . . . . . . . . .
Remove the lower case . . . . . . . . . . . .
Remove the battery pack . . . . . . . . . . .
Remove the coin-cell battery. . . . . . . . . .
Remove the heat sink . . . . . . . . . . . .
Remove the power board . . . . . . . . . . .
Remove the Wi-Fi card . . . . . . . . . . . .
Remove the SSD card . . . . . . . . . . . .
Remove the speakers . . . . . . . . . . . .
Remove the upper case (with keyboard) . . . . .
Remove the system board. . . . . . . . . . .
Remove the touchpad assembly . . . . . . . .
Disassemble the LCD module . . . . . . . . .
Remove the LCD panel . . . . . . . . . .
Remove the camera board . . . . . . . . .
Appendix A. Features and
connectors . . . . . . . . . . . . . . . 55
Appendix B. Label locations . . . . . 57
Trademarks . . . . . . . . . . . . . . . . . lix
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