Table of Contents
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Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 2
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. General checkout . . . . . 21
What to do first . . . . . . . . . . . . . . .
CRU list . . . . . . . . . . . . . . . . . .
repair shim . . . . . . . . . . . . . . . 23
What is a USB repair shim? . . . . . . . . . .
Create a repair shim . . . . . . . . . . . . .
problems . . . . . . . . . . . . . . . . .
Factory test items . . . . . . . . . . . .
© Copyright Lenovo 2019
Locate FRU and CRU . . . . . . . . . . . .
CRU . . . . . . . . . . . . . . . . . . 31
Service tools . . . . . . . . . . . . . . . .
General guidelines. . . . . . . . . . . . . .
Remove the lower case . . . . . . . . . . . .
Remove the battery pack . . . . . . . . . . .
Remove the WLAN card . . . . . . . . . . .
Remove the upper case. . . . . . . . . . . .
Remove the fan . . . . . . . . . . . . . . .
21
Remove the I/O board with cable . . . . . . . .
22
Remove the heat sink . . . . . . . . . . . .
Remove the speakers . . . . . . . . . . . .
Remove the system board. . . . . . . . . . .
Remove the LCD module . . . . . . . . . . .
23
Remove the camera and sensor board . . . . . .
23
Trademarks . . . . . . . . . . . . . . . . xlix
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24
27
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33
34
36
37
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i
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