Table Of Contents - Lenovo 500e Chromebook Gen 3 Hardware Maintenance Manual

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 . . . . . . . . . . . . . . .
Power system checkout . . . . . . . . . . .
Checking the ac power adapter . . . . . . .
Checking the built-in battery and operational
charging . . . . . . . . . . . . . . . .
Chapter 3. Create and use a USB
repair shim . . . . . . . . . . . . . . . 25
What is a USB repair shim? . . . . . . . . . .
Create a USB repair shim . . . . . . . . . . .
Use the USB repair shim . . . . . . . . . . .
Chapter 4. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 27
Locating FRUs and CRUs . . . . . . . . . . .
Major FRUs and CRUs . . . . . . . . . .
LCD FRUs . . . . . . . . . . . . . . .
Miscellaneous parts . . . . . . . . . . .
Looking up FRU information . . . . . . . . . .
Chapter 5. Removing or replacing a
FRU. . . . . . . . . . . . . . . . . . . 37
General guidelines . . . . . . . . . . . . . .
Disabling the built-in battery . . . . . . . . . .
Removing the nano-SIM card and the nano-SIM-
card tray . . . . . . . . . . . . . . . . .
1010 Electronic pen / Pen dummy (for selected
models of Lenovo 300e/500e Chromebook Gen
3) . . . . . . . . . . . . . . . . . . . .
© Copyright Lenovo 2022
1020 Base cover assembly . . . . . . . . . .
1030 Built-in battery . . . . . . . . . . . . .
1040 Wireless LAN card (for selected models) . . .
1050 Wireless WAN card (for selected models)
1060 Speaker assembly . . . . . . . . . . .
1070 Daughter board bracket . . . . . . . . .
1080 Daughter board
1090 USB-C bracket . . . . . . . . . . . . .
1100 System board . . . . . . . . . . . . .
1110 Heatsink . . . . . . . . . . . . . . .
1120 Nano-SIM card cable and board (for selected
models) . . . . . . . . . . . . . . . . . .
21
1130 World-Facing camera (for selected models of
22
Lenovo 300e/500e Chromebook Gen 3) . . . . .
22
1140 Electronic pen board and cable . . . . . .
1150 Keyboard assembly . . . . . . . . . . .
22
Disassemble the LCD module (for Lenovo 100e
Chromebook Gen 3) . . . . . . . . . . . . .
2010 LCD bezel . . . . . . . . . . . . .
2020 LCD panel . . . . . . . . . . . . .
25
2030 Camera board and webcam privacy
25
shutter . . . . . . . . . . . . . . . .
26
2040 LCD hinges . . . . . . . . . . . .
2050 Camera and LCD cable . . . . . . . .
Disassemble the LCD module (for Lenovo 300e/
500e Chromebook Gen 3) . . . . . . . . . . .
27
2010 Strip cover and rubber caps . . . . . .
28
2020 LCD panel . . . . . . . . . . . . .
32
2030 Camera board . . . . . . . . . . .
35
2040 LCD cable . . . . . . . . . . . . .
35
2050 Sensor board. . . . . . . . . . . .
2060 LCD hinges . . . . . . . . . . . .
Appendix A. Controls, connectors,
37
and indicators . . . . . . . . . . . . . 63
38
Appendix B. Notices. . . . . . . . . . 65
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