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Lenovo ThinkPad Edge E120 E125

Tags : LenovoThinkPadEdgeE120E12530433035 
Lenovo ThinkPad Edge E120 E125 Hardware Maintenance Manual

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Description

Lenovo ThinkPad Edge E120 E125 Hardware Maintenance Manual
Fourth Edition (March 2012) - 106 pages

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

ThinkPad Edge E120 MT 3043

ThinkPad Edge E125 MT 3035

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
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 message . . . . . . . . 20
Strategy for replacing FRUs for CTO, CMV, and
GAV . . . . . . . . . . . . . . . . . . . 20
Product definition . . . . . . . . . . . . 20
FRU identification for CTO, CMV, and GAV
products . . . . . . . . . . . . . . . 21
Chapter 3. General checkout . . . . . 23
What to do first . . . . . . . . . . . . . . 23
Checkout guide . . . . . . . . . . . . . . 24
System supporting the Lenovo ThinkVantage
Toolbox program and the PC-Doctor for DOS
diagnostics program . . . . . . . . . . 24
System supporting the Lenovo diagnostics
programs . . . . . . . . . . . . . . . 28
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 Recovery
Disc Set . . . . . . . . . . . . . . . . . 33
Passwords . . . . . . . . . . . . . . . . 34
Power-on password . . . . . . . . . . . 34
Hard disk password . . . . . . . . . . . 34
Supervisor password . . . . . . . . . . 35
How to remove the power-on password . . . 35
How to remove the hard disk password . . . 35
Power management . . . . . . . . . . . . 36
Screen blank mode . . . . . . . . . . . 36
Sleep (standby) mode . . . . . . . . . . 36
Hibernation mode . . . . . . . . . . . 37
Symptom-to-FRU index . . . . . . . . . . . 37
Numeric error codes . . . . . . . . . . 38
Error messages . . . . . . . . . . . . 39
Beep symptoms . . . . . . . . . . . . 39
No-beep symptoms . . . . . . . . . . . 39
LCD-related symptoms . . . . . . . . . 40
Intermittent problems . . . . . . . . . . 40
Undetermined problems . . . . . . . . . 41
Chapter 5. Status indicators . . . . . 43
Chapter 6. Special keys . . . . . . . . 45
Chapter 7. FRU replacement
notices . . . . . . . . . . . . . . . . 47
Screw notices . . . . . . . . . . . . . . . 47
Retaining serial numbers. . . . . . . . . . . 48
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . . 48
Retaining the UUID . . . . . . . . . . . 49
Reading or writing the ECA information . . . 49
Chapter 8. Removing and replacing a
FRU . . . . . . . . . . . . . . . . . . 51
Before servicing ThinkPad Edge E120 and E125
models. . . . . . . . . . . . . . . . . . 51
1010 Battery pack . . . . . . . . . . . . . 52
1020 Bottom slot cover . . . . . . . . . . . 53
1030 Memory modules . . . . . . . . . . . 54
1040 Hard disk drive or solid state drive
assembly . . . . . . . . . . . . . . . . . 54
1050 PCI Express Mini Card for wireless LAN . . 56
1060 PCI Express Mini Card for wireless WAN . . 58
1070 Keyboard . . . . . . . . . . . . . . 59
1080 Power sub card and microphone . . . . . 61
1090 Top case assembly. . . . . . . . . . . 62
1100 Bluetooth daughter card . . . . . . . . 64
1110 Speaker assembly . . . . . . . . . . . 65
1120 I/O board . . . . . . . . . . . . . . 65
1130 System board assembly, fan assembly, and
backup battery . . . . . . . . . . . . . . 66
1140 CRT board assembly (with cable) . . . . . 69
1150 DC-in sub card and base cover assembly . . 69
2010 LCD unit . . . . . . . . . . . . . . . 72
2020 LCD bezel assembly . . . . . . . . . . 74
2030 Integrated camera . . . . . . . . . . . 74
2040 LCD panel, LCD cable, and hinges . . . . 75
2050 Wireless LAN antenna assembly, wireless
WAN antenna assembly, and LCD rear cover
assembly . . . . . . . . . . . . . . . . . 77
Chapter 9. Locations . . . . . . . . . 79
Front view . . . . . . . . . . . . . . . . 79
Rear view. . . . . . . . . . . . . . . . . 80
Bottom view . . . . . . . . . . . . . . . 80
Chapter 10. Parts list . . . . . . . . . 81
Overall . . . . . . . . . . . . . . . . . . 82
LCD FRUs . . . . . . . . . . . . . . . . 85
Keyboard . . . . . . . . . . . . . . . . . 88
Miscellaneous parts . . . . . . . . . . . . 89
ac power adapters . . . . . . . . . . . . . 89
Power cords . . . . . . . . . . . . . . . 90
Recovery discs . . . . . . . . . . . . . . 91
Windows XP Professional (32-bit) DVDs . . . 91
Windows Vista Business (32-bit) DVDs . . . 91
Windows 7 Home Basic (32-bit) with Service
Pack 1 DVDs . . . . . . . . . . . . . 91
Windows 7 Home Basic (64-bit) with Service
Pack 1 DVDs . . . . . . . . . . . . . 92
Windows 7 Home Premium (32-bit) with
Service Pack 1 DVDs . . . . . . . . . . 92
Windows 7 Home Premium (64-bit) with
Service Pack 1 DVDs . . . . . . . . . . 93
Windows 7 Professional (32-bit) with Service
Pack 1 DVDs . . . . . . . . . . . . . 94
Windows 7 Professional (64-bit) with Service
Pack 1 DVDs . . . . . . . . . . . . . 94
Windows 7 Ultimate (32-bit) with Service Pack
1 DVDs . . . . . . . . . . . . . . . . 95
Windows 7 Ultimate (64-bit) with Service Pack
1 DVDs . . . . . . . . . . . . . . . . 95
Windows 7 Starter (32-bit) with Service Pack 1
DVDs . . . . . . . . . . . . . . . . 95
Common service tools . . . . . . . . . . . 96
Appendix A. Notices . . . . . . . . . . 97
Electronic emissions notices . . . . . . . . . 98
Trademarks . . . . . . . . . . . . . . . . 98




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