Lenovo 10e Chromebook, 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 . . . . . . . . . . . . . 3
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
Power system checkout . . . . . . . . . . . 22
Checking the ac power adapter . . . . . . . 22
Checking the built-in battery and operational
charging . . . . . . . . . . . . . . . . 22
Chapter 3. Create and use a USB
repair shim . . . . . . . . . . . . . . . 25
What is a USB repair shim? . . . . . . . . . . 25
Create a USB repair shim . . . . . . . . . . . 25
Use the USB repair shim . . . . . . . . . . . 26
Chapter 4. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 29
Locating FRUs and CRUs . . . . . . . . . . . 29
Major FRUs and CRUs . . . . . . . . . . 30
Miscellaneous parts . . . . . . . . . . . 31
Looking up FRU information . . . . . . . . . . 31
Chapter 5. Removing or replacing a
FRU. . . . . . . . . . . . . . . . . . . 33
General guidelines. . . . . . . . . . . . . . 33
Disabling the built-in battery . . . . . . . . . . 34
1010 LCD unit and LCD cable . . . . . . . . . 34
1020 Front camera with cable . . . . . . . . . 36
1030 Microphone board . . . . . . . . . . . 37
1040 Microphone board cable . . . . . . . . . 37
1050 Wireless LAN antenna . . . . . . . . . . 38
1060 Speaker assembly
. . . . . . . . . . . 39
1070 Thermal pad . . . . . . . . . . . . . . 40
1080 LED sponge . . . . . . . . . . . . . . 40
1090 I/O bracket . . . . . . . . . . . . . . 41
1100 System board . . . . . . . . . . . . . 41
1110 Pogo pin cable . . . . . . . . . . . . . 43
1120 Rear camera . . . . . . . . . . . . . . 43
Appendix A. Controls, connectors,
and indicators . . . . . . . . . . . . . 45
Appendix B. Notices. . . . . . . . . . 51
© Copyright Lenovo 2020
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