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Lenovo ThinkPad Edge E145

Tags : LenovoThinkPadEdgeE14520BC 
Lenovo ThinkPad Edge E145 Hardware Maintenance Manual

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Description

Lenovo ThinkPad Edge E145 Hardware Maintenance Manual
First Edition (August 2013) - 96 pages

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

ThinkPad Edge E145 Machine Type (MT) 20BC

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 . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . 3
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. Important service
information . . . . . . . . . . . . . . 19
Strategy for replacing FRUs . . . . . . . . . 19
Strategy for replacing a hard disk drive . . . 20
Important notice for replacing a system
board . . . . . . . . . . . . . . . . 20
How to use error codes . . . . . . . . . 20
Strategy for replacing FRUs for CTO, special bid
model, and standard model . . . . . . . . . 20
Product definition . . . . . . . . . . . . 20
FRU identification. . . . . . . . . . . . 21
Chapter 3. General checkout . . . . . 23
What to do first . . . . . . . . . . . . . . 23
Checkout guide . . . . . . . . . . . . . . 24
Lenovo Solution Center . . . . . . . . . 24
Quick test programs. . . . . . . . . . . 24
UEFI diagnostic program . . . . . . . . . 25
Bootable diagnostic programs. . . . . . . 25
Power system checkout . . . . . . . . . . . 26
Checking the ac power adapter . . . . . . 26
Checking operational charging . . . . . . 27
Checking the battery pack . . . . . . . . 27
Checking the backup battery . . . . . . . 28
Chapter 4. Related service
information . . . . . . . . . . . . . . 29
Restoring the factory contents by using the
Recovery Disc Set . . . . . . . . . . . . . 29
Recovery overview for the Windows 8 operating
system . . . . . . . . . . . . . . . . . . 30
Refreshing your computer . . . . . . . . 30
Resetting your computer to the factory default
settings. . . . . . . . . . . . . . . . 30
Using the advanced startup options . . . . 31
Recovering your operating system if Windows
8 fails to start . . . . . . . . . . . . . 31
Creating and using recovery media . . . . . 31
Passwords . . . . . . . . . . . . . . . . 32
Power-on password . . . . . . . . . . . 32
Hard disk password . . . . . . . . . . . 32
Supervisor password . . . . . . . . . . 33
How to remove the power-on password . . . 33
How to remove the hard disk password . . . 34
Power management . . . . . . . . . . . . 34
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . . 34
Sleep mode . . . . . . . . . . . . . . 34
Hibernation mode . . . . . . . . . . . 35
Symptom-to-FRU index . . . . . . . . . . . 35
Numeric error codes . . . . . . . . . . 36
Error messages . . . . . . . . . . . . 37
Beep symptoms . . . . . . . . . . . . 38
No-beep symptoms . . . . . . . . . . . 38
LCD-related symptoms . . . . . . . . . 38
Intermittent problems . . . . . . . . . . 39
Undetermined problems . . . . . . . . . 39
Chapter 5. Status indicators . . . . . 41
Chapter 6. Special keys . . . . . . . . 43
Chapter 7. Locations . . . . . . . . . 45
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . . 45
Front view. . . . . . . . . . . . . . . 45
Rear view . . . . . . . . . . . . . . . 46
Bottom view . . . . . . . . . . . . . . 46
Locating FRUs and CRUs . . . . . . . . . . 46
Major FRUs and CRUs. . . . . . . . . . 48
LCD FRUs and CRUs . . . . . . . . . . 50
Miscellaneous parts and other FRUs . . . . 51
Looking up FRU information . . . . . . . . . 51
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . . 53
Screw notices . . . . . . . . . . . . . . . 53
Retaining serial numbers. . . . . . . . . . . 54
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . . 54
Retaining the UUID . . . . . . . . . . . 55
Chapter 9. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . . 57
General guidelines . . . . . . . . . . . . . 57
1010 Battery pack . . . . . . . . . . . . . 58
1020 Bottom cover . . . . . . . . . . . . . 58
1030 Backup battery . . . . . . . . . . . . 59
1040 Memory modules . . . . . . . . . . . 60
1050 Hard disk drive . . . . . . . . . . . . 61
1060 Wireless LAN card . . . . . . . . . . . 63
1070 Keyboard . . . . . . . . . . . . . . 64
1080 Keyboard bezel . . . . . . . . . . . . 66
1090 Microphone . . . . . . . . . . . . . 68
1100 Speaker assembly . . . . . . . . . . . 69
1110 I/O card with USB connector . . . . . . . 70
1120 Power and VGA card assembly . . . . . . 71
1130 System board assembly. . . . . . . . . 72
1140 Thermal fan assembly . . . . . . . . . 74
1150 LCD unit . . . . . . . . . . . . . . . 75
1160 DC-in connector . . . . . . . . . . . 77
1170 Base cover assembly . . . . . . . . . . 77
2010 LCD bezel assembly . . . . . . . . . . 79
2020 LCD panel, LCD cable, and hinges . . . . 80
2030 Camera module . . . . . . . . . . . . 81
2040 Wireless antenna assembly and LCD rear
cover assembly . . . . . . . . . . . . . . 82
Appendix A. Notices . . . . . . . . . . 85
Electronic emission notices. . . . . . . . . . 86
Trademarks . . . . . . . . . . . . . . . . 86
Abbreviation table . . . . . . . . . . . . . 86



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