Lenovo ThinkPad Yoga 11e Chromebook - Manual (Page 3)

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. Important service
information . . . . . . . . . . . . . .
19
Power management . . . . . . . . . . . . 19
Symptom-to-FRU index . . . . . . . . . . . 19
LCD-related symptoms . . . . . . . . . 20
Intermittent problems . . . . . . . . . . 20
Undetermined problems . . . . . . . . . 21
Overview of the Chromebook USB repair shim . . 21
Creating the repair shim . . . . . . . . . 22
Removing and reinstalling the write-protect
screw . . . . . . . . . . . . . . . .
22
Using the repair shim . . . . . . . . . . 23
Factory test items. . . . . . . . . . . . 24
Strategy for replacing FRUs . . . . . . . . . 25
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
25
How to use error message . . . . . . . . 25
Strategy for replacing FRUs for CTO, special-bid,
and standard models . . . . . . . . . . . .
25
Product definition . . . . . . . . . . . . 25
FRU identification. . . . . . . . . . . . 26
Chapter 3. General checkout . . . . . 27
What to do first . . . . . . . . . . . . . . 27
Power system checkout . . . . . . . . . . . 28
Checking the ac power adapter . . . . . . 28
Checking the battery and operational
charging . . . . . . . . . . . . . . .
29
Chapter 4. Locations . . . . . . . . . 31
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . .
31
Front view. . . . . . . . . . . . . . . 31
Left-side view . . . . . . . . . . . . . 33
Bottom view . . . . . . . . . . . . . . 33
Locating FRUs and CRUs . . . . . . . . . . 34
Major FRUs . . . . . . . . . . . . . . 35
LCD FRUs . . . . . . . . . . . . . . 37
Miscellaneous parts and other FRUs . . . . 40
Looking up FRU information . . . . . . . . . 40
Chapter 5. FRU replacement
notices . . . . . . . . . . . . . . . .
41
Common service tools . . . . . . . . . . . 41
Screw notices . . . . . . . . . . . . . . . 41
Hardware identity . . . . . . . . . . . . . 42
Prerequisite for replacing a FRU . . . . . . . . 42
Chapter 6. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . .
45
General guidelines . . . . . . . . . . . . . 45
Disabling the built-in battery . . . . . . . . . 46
1010 Bottom cover . . . . . . . . . . . . . 46
1020 Battery . . . . . . . . . . . . . . . 47
1030 Hard disk drive bracket . . . . . . . . . 49
1040 Wireless LAN card . . . . . . . . . . . 50
1050 Keyboard . . . . . . . . . . . . . . 51
1060 Keyboard bezel assembly, speaker assembly,
media-card-reader board . . . . . . . . . .
52
1070 Bracket for dummy Ethernet connector,
bracket for USB connector, bracket for dc-in
connector, dc-in connector, system board
assembly, and thermal fan . . . . . . . . . .
57
1080 LCD unit . . . . . . . . . . . . . . . 60
Removing an LCD FRU for models without touch
panel . . . . . . . . . . . . . . . . . .
62
2010 LCD bezel assembly . . . . . . . . 62
2020 LCD panel . . . . . . . . . . . . 63
2030 Camera/microphone board . . . . . . 64
2040 Antenna kit, hinges, LCD cable, and LED
cable assembly
. . . . . . . . . . . . 65
Removing an LCD FRU for models with touch
panel . . . . . . . . . . . . . . . . . .
68
3010 LCD panel assembly . . . . . . . . 68
3020 Camera/microphone board and sensor
board . . . . . . . . . . . . . . . .
70
3030 Antenna kit, hinges, LCD cable, and LED
cable assembly
. . . . . . . . . . . . 71
Appendix A. Notices . . . . . . . . . . 75
Electronic emissions notices . . . . . . . . . 76
Trademarks . . . . . . . . . . . . . . . . 76
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