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Lenovo ThinkPad Edge E431

Tags : LenovoThinkPadEdgeE43162776886 
Lenovo ThinkPad Edge E431 Hardware Maintenance Manual

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Description

Lenovo ThinkPad Edge E431 Hardware Maintenance Manual
Second Edition (May 2013) 129 pages

This manual contains service and reference information for the following ThinkPad® products:

ThinkPad Edge E431 Machine Types (MT) 6277 and 6886

Use this manual along with the advanced diagnostic tests to troubleshoot problems.

Contents
About this manual. . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . 2
Safety inspection guide . . . . . . . . . . . . 3
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Laser compliance statement (multilingual
translations) . . . . . . . . . . . . . . . . 17
Chapter 2. Important service
information . . . . . . . . . . . . . . 23
Strategy for replacing FRUs . . . . . . . . . 23
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . . 24
Important notice for replacing a system
board . . . . . . . . . . . . . . . . 24
How to use error codes . . . . . . . . . 24
Strategy for replacing FRUs for CTO, CMV, and
GAV . . . . . . . . . . . . . . . . . . . 24
Product definition . . . . . . . . . . . . 24
FRU identification for CTO, CMV, and GAV
products . . . . . . . . . . . . . . . 25
Chapter 3. General checkout . . . . . 27
What to do first . . . . . . . . . . . . . . 27
Checkout guide . . . . . . . . . . . . . . 28
Lenovo Solution Center . . . . . . . . . 28
Quick test programs. . . . . . . . . . . 28
UEFI diagnostic program . . . . . . . . . 29
Bootable diagnostic programs. . . . . . . 29
Power system checkout . . . . . . . . . . . 30
Checking the ac power adapter . . . . . . 30
Checking operational charging . . . . . . 31
Checking the battery pack . . . . . . . . 31
Checking the backup battery . . . . . . . 32
Chapter 4. Related service
information . . . . . . . . . . . . . . 33
Restoring the factory contents by using the
product Recovery Disc Set . . . . . . . . . . 33
Using the Windows recovery programs on the
Windows 8 operating system . . . . . . . . . 34
Refreshing your computer . . . . . . . . 34
Resetting your computer to the factory default
settings. . . . . . . . . . . . . . . . 34
Using the advanced startup options . . . . 35
Recovering your operating system if Windows
8 fails to start . . . . . . . . . . . . . 35
Creating and using recovery media . . . . . 35
Passwords . . . . . . . . . . . . . . . . 36
Power-on password . . . . . . . . . . . 36
Hard disk password . . . . . . . . . . . 37
Supervisor password . . . . . . . . . . 37
How to remove the power-on password . . . 37
How to remove the hard disk password . . . 38
Power management . . . . . . . . . . . . 38
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . . 38
Sleep mode . . . . . . . . . . . . . . 38
Hibernation mode . . . . . . . . . . . 39
Symptom-to-FRU index . . . . . . . . . . . 39
Numeric error codes . . . . . . . . . . 40
Error messages . . . . . . . . . . . . 42
Beep symptoms . . . . . . . . . . . . 42
No-beep symptoms . . . . . . . . . . . 42
LCD-related symptoms . . . . . . . . . 43
Intermittent problems . . . . . . . . . . 43
Undetermined problems . . . . . . . . . 43
Chapter 5. Status indicators . . . . . 45
Chapter 6. Special keys . . . . . . . . 47
Chapter 7. Locations . . . . . . . . . 49
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . . 49
Front view. . . . . . . . . . . . . . . 49
Rear view . . . . . . . . . . . . . . . 50
Bottom view . . . . . . . . . . . . . . 50
Locating FRUs and CRUs . . . . . . . . . . 50
Major FRUs and CRUs. . . . . . . . . . 52
LCD FRUs and CRUs . . . . . . . . . . 54
Miscellaneous kits and other FRUs . . . . . 57
Looking up FRU information . . . . . . . . . 57
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . . 59
Screw notices . . . . . . . . . . . . . . . 59
Retaining serial numbers. . . . . . . . . . . 60
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . . 60
Retaining the UUID . . . . . . . . . . . 61
Reading or writing the ECA information . . . 61
Chapter 9. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . . 63
General guidelines . . . . . . . . . . . . . 63
Removing the SIM card . . . . . . . . . . . 64
1010 Lenovo OneLink connector cover . . . . . 65
1020 Battery pack . . . . . . . . . . . . . 65
1030 Large bottom cover . . . . . . . . . . 66
1040 Small bottom cover . . . . . . . . . . 67
1050 Optical drive or blank bezel . . . . . . . 68
1060 Memory modules . . . . . . . . . . . 68
1070 Hard disk drive assembly or solid-state drive
assembly . . . . . . . . . . . . . . . . . 69
1080 Wireless WAN card or M.2 solid-state drive . 71
1090 Wireless LAN card . . . . . . . . . . . 73
1100 Backup battery . . . . . . . . . . . . 74
1110 Thermal fan assembly . . . . . . . . . 75
1120 Keyboard . . . . . . . . . . . . . . 77
1130 Keyboard bezel . . . . . . . . . . . . 83
1140 Microprocessor . . . . . . . . . . . . 86
1150 System board assembly. . . . . . . . . 87
1160 Card reader with USB connector sub card . 90
1170 DC-in bracket, DC-in connector with RJ45
sub card, and DC-in support bracket . . . . . . 91
1180 Speaker assembly . . . . . . . . . . . 94
1190 Power button sub card . . . . . . . . . 95
1200 LCD unit . . . . . . . . . . . . . . . 95
1210 Base cover assembly . . . . . . . . . . 100
For models with non-touch panel . . . . . . . 102
2010 LCD bezel assembly . . . . . . . . 102
2020 LCD non-touch panel and hinges . . . 103
2030 Camera with microphone combo card
and LCD cables . . . . . . . . . . . . 105
2040 Wireless antenna assembly and LCD
rear cover assembly . . . . . . . . . . . 107
For models with touch panel . . . . . . . . . 108
2010 LCD bezel and touch panel LCD
module . . . . . . . . . . . . . . . . 108
2020 Camera with microphone combo
card . . . . . . . . . . . . . . . . . 110
2030 LCD cables and touch panel control
board cable . . . . . . . . . . . . . . 111
2040 Hinges . . . . . . . . . . . . . . 113
2050 Wireless LAN antenna assembly and
LCD rear cover assembly . . . . . . . . . 114
Appendix A. Notices . . . . . . . . . 117
Electronic emission notices. . . . . . . . . . 118
Trademarks . . . . . . . . . . . . . . . . 118
Appendix B. Abbreviation table . . . 119



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