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Lenovo ThinkPad Yoga 11e Chromebook Hardware Maintenance Manual - ThinkPad 11e - Page 46

Miscellaneous parts and other FRUs, Looking up FRU information, Miscellaneous part, Other FRUs

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No. FRU descriptions 5 Antenna kit 6 LED cable assembly 7 LCD rear cover assembly 8 LCD cable for touch panel Miscellaneous parts and other FRUs Miscellaneous part FRU descriptions Screw kit System miscellaneous kit • Bracket for the dc-in connector • Bracket for the microprocessor • Bracket for the dummy Ethernet connector • Screw rubber caps LCD miscellaneous kit • Mylar screw caps • Hinge rubbers for touch model • Hinge rubbers for non-touch model Other FRUs FRU descriptions ac power adapter Power cord CRU ID N N N N CRU ID No No No CRU ID * * Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to http://www.lenovo.com/serviceparts-lookup. 40 Hardware Maintenance Manual

Section	Page
About this manual	5
Chapter 1. Safety information	7
General safety	7
Electrical safety	7
Safety inspection guide	8
Handling devices that are sensitive to electrostatic discharge	9
Grounding requirements	10
Safety notices (multilingual translations)	10
Chapter 2. Important service information	25
Power management	25
Symptom-to-FRU index	25
LCD-related symptoms	26
Intermittent problems	26
Undetermined problems	27
Overview of the Chromebook USB repair shim	27
Creating the repair shim	28
Removing and reinstalling the write-protect screw	28
Using the repair shim	29
Factory test items	30
Strategy for replacing FRUs	31
Important notice for replacing a system board	31
How to use error message	31
Strategy for replacing FRUs for CTO, special-bid, and standard models	31
Product definition	31
FRU identification	32
Chapter 3. General checkout	33
What to do first	33
Power system checkout	34
Checking the ac power adapter	34
Checking the battery and operational charging	35
Chapter 4. Locations	37
Locating computer controls, connectors, and indicators	37
Front view	37
Left-side view	39
Bottom view	39
Locating FRUs and CRUs	40
Major FRUs	41
LCD FRUs	43
Miscellaneous parts and other FRUs	46
Looking up FRU information	46
Chapter 5. FRU replacement notices	47
Common service tools	47
Screw notices	47
Hardware identity	48
Prerequisite for replacing a FRU	48
Chapter 6. Removing or replacing a FRU	51
General guidelines	51
Disabling the built-in battery	52
1010 Bottom cover	52
1020 Battery	53
1030 Hard disk drive bracket	55
1040 Wireless LAN card	56
1050 Keyboard	57
1060 Keyboard bezel assembly, speaker assembly, media-card-reader board	58
1070 Bracket for dummy Ethernet connector, bracket for USB connector, bracket for dc-in connector, dc-in connector, system board assembly, and thermal fan	63
1080 LCD unit	66
Removing an LCD FRU for models without touch panel	68
2010 LCD bezel assembly	68
2020 LCD panel	69
2030 Camera/microphone board	70
2040 Antenna kit, hinges, LCD cable, and LED cable assembly	71
Removing an LCD FRU for models with touch panel	74
3010 LCD panel assembly	74
3020 Camera/microphone board and sensor board	76
3030 Antenna kit, hinges, LCD cable, and LED cable assembly	77
Appendix A. Notices	81
Electronic emissions notices	82