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Lenovo ThinkPad E555 (English) Hardware Maintenance Manual - Page 4

Removingorreplacinga, AppendixA.Notices, AppendixB.Abbreviationand, acronymtable - replacement keyboard

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Chapter 9. Removing or replacing a FRU 65 General guidelines 65 1010 Lenovo-OneLink-connector cover . . . . . 66 1020 Battery pack 66 1030 Large bottom cover 67 1040 Small bottom cover 68 1050 Optical drive or optical-drive bay bezel . . . 69 1060 Memory module 70 1070 Hard disk drive assembly or solid-state drive assembly 70 1080 Wireless LAN card 72 1090 Coin-cell battery 73 1110 Keyboard 73 1120 Keyboard bezel assembly 75 1130 System board and thermal fan 77 1140 dc-in/USB-connector board with cable . . . 81 1150 Audio connector card with cable . . . . . 82 1160 Speaker assembly 83 1170 LCD unit 84 1180 Base cover assembly 87 2010 LCD bezel 90 2020 LCD panel 90 2030 LCD hinges 92 2040 Camera/microphone module 93 2050 LCD cables 94 2060 Wireless LAN assembly and LCD rear cover 95 Appendix A. Notices 97 Electronic emission notices 98 Trademarks 98 Appendix B. Abbreviation and acronym table 99 ii Hardware Maintenance Manual

Section	Page
About this manual	5
Chapter 1. Safety information	7
General safety	7
Electrical safety	8
Safety inspection guide	9
Handling devices that are sensitive to electrostatic discharge	9
Grounding requirements	10
Safety notices (multilingual translations)	10
Laser compliance statement (multilingual translations)	24
Chapter 2. Important service information	31
Strategy for replacing FRUs	31
Strategy for replacing a hard disk drive or a solid-state drive	31
Important notice for replacing a system board	32
How to use error codes	32
Strategy for replacing FRUs for CTO, special-bid, and standard models	32
Product definition	32
FRU identification	32
Chapter 3. General checkout	35
What to do first	35
Checkout guide	36
Lenovo Solution Center	36
Quick test programs	36
UEFI diagnostic program	37
Bootable diagnostic programs	38
Power system checkout	39
Checking the ac power adapter	39
Checking operational charging	39
Checking the battery pack	40
Checking the coin-cell battery	40
Chapter 4. Related service information	43
Restoring the factory contents by using the Recovery Disc Set	43
Recovery overview for the Windows 8 and Windows 8.1 operating systems	44
Refreshing your computer	44
Resetting your computer to the factory default settings	44
Using the advanced startup options	45
Recovering your operating system if Windows 8 or Windows 8.1 fails to start	45
Creating and using recovery media	46
Passwords	47
Power-on password	47
Hard disk password	47
Supervisor password	48
How to remove the power-on password	48
How to remove the hard disk password	48
Power management	49
Screen blank mode (for the Windows 7 operating system only)	49
Sleep mode	49
Hibernation mode	50
Symptom-to-FRU index	50
Numeric error codes	51
Error messages	52
Beep symptoms	53
No-beep symptoms	53
LCD-related symptoms	53
Intermittent problems	54
Undetermined problems	54
Chapter 5. Status indicators	55
Chapter 6. Special keys	57
Chapter 7. Locations	59
Locating computer controls, connectors, and indicators	59
Front view	59
Rear view	60
Bottom view	60
Locating FRUs and CRUs	60
Major FRUs and CRUs	62
LCD FRUs and CRUs	64
Miscellaneous kits and other FRUs	65
Looking up FRU information	65
Chapter 8. FRU replacement notices	67
Screw notices	67
Retaining serial numbers	68
Restoring the serial number of the system unit	68
Retaining the UUID	69
Chapter 9. Removing or replacing a FRU	71
General guidelines	71
1010 Lenovo-OneLink-connector cover	72
1020 Battery pack	72
1030 Large bottom cover	73
1040 Small bottom cover	74
1050 Optical drive or optical-drive bay bezel	75
1060 Memory module	76
1070 Hard disk drive assembly or solid-state drive assembly	76
1080 Wireless LAN card	78
1090 Coin-cell battery	79
1110 Keyboard	79
1120 Keyboard bezel assembly	81
1130 System board and thermal fan	83
1140 dc-in/USB-connector board with cable	87
1150 Audio connector card with cable	88
1160 Speaker assembly	89
1170 LCD unit	90
1180 Base cover assembly	93
2010 LCD bezel	96
2020 LCD panel	96
2030 LCD hinges	98
2040 Camera/microphone module	99
2050 LCD cables	100
2060 Wireless LAN assembly and LCD rear cover	101
Appendix A. Notices	103
Electronic emission notices	104
Trademarks	104