Table Of Contents - Lenovo 100e Chromebook Gen 4 Hardware Maintenance Manual

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 . . . . . . . . . . . . . . .
CRU list . . . . . . . . . . . . . . . . . .
Chapter 3. Create and use a USB
repair shim . . . . . . . . . . . . . . . 23
What is a USB repair shim? . . . . . . . . . .
Chapter 4. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 25
Locate FRUs and CRUs
Chapter 5. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 29
Service tools . . . . . . . . . . . . . . . .
General guidelines . . . . . . . . . . . . . .
Handling thermal interface materials
Type, quantity, and areas of thermal interface
materials application on the heat sink . . . .
© Copyright Lenovo 2024
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Areas on the system board where thermal
interface materials are applied . . . . . . .
Remove the keyboard . . . . . . . . . . . .
Install the keyboard . . . . . . . . . . .
Remove the lower case . . . . . . . . . . . .
Remove the 14-pin I/O board cable . . . . . . .
Remove the 40-pin I/O board cable . . . . . . .
Remove the battery pack . . . . . . . . . . .
Remove the Wi-Fi card . . . . . . . . . . . .
Remove the speakers . . . . . . . . . . . .
Remove I/O board bracket . . . . . . . . . .
Remove the I/O board . . . . . . . . . . . .
21
Remove the Type-C bracket . . . . . . . . . .
22
Remove the touchpad cable . . . . . . . . . .
Remove the system board. . . . . . . . . . .
Remove the heat sink . . . . . . . . . . . .
Remove the antennas . . . . . . . . . . . .
23
Remove the LCD module . . . . . . . . . . .
Remove the upper case with touchpad/clickpad . .
Disassemble the LCD module . . . . . . . . .
25 Remove the LCD bezel . . . . . . . . . .
Remove the LCD panel . . . . . . . . . .
Remove the camera board . . . . . . . . .
Remove the EDP cable . . . . . . . . . .
29
Remove the hinges. . . . . . . . . . . .
29
Remove the LCD cover . . . . . . . . . .
30
Chapter 6. Label locations . . . . . . 55
30
Trademarks . . . . . . . . . . . . . . . .
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