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Lenovo ThinkPad Edge E420s Notebook
Hersteller:
Lenovo
Modell: ThinkPad Edge E420s
Datum: 2012
Kategorie: Computer usw.
Gruppe: Notebook
Beschreibung:
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Lenovo -- ThinkPad Edge E420s -- Serviceanleitung
Dateiname: Lenovo-4522-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 114
Dateigröße: 16.07 Mbytes (16847059 Bytes)
Sprache: Englisch
Revision: Fourth edition
Dokument-ID/Nummer: 0A60439_03
Datum: April 2012
Qualität: Elektronisches Dokument, kein Scan, sehr gut lesbar.
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MD5: 129f52c24eb3bb671eae52be69072d91
Downloads: 255 seit dem 28 April 2013
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About this manual
This manual contains service and reference information for the following ThinkPad® products.
ThinkPad Edge E420s and S420
Machine Type (MT) 4401
Use this manual along with the advanced diagnostic tests to troubleshoot problems.
Important:
This manual is intended only for trained service technicians who are familiar with ThinkPad products. Use
this manual along with the advanced diagnostic tests to troubleshoot problems effectively.
Before servicing a ThinkPad product, be sure to read all the information under Chapter 1 “Safety
information” on page 1 and Chapter 2 “Important service information” on page 27.

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) . . . . . . . . . . . . . . . . 19
Chapter 2. Important service
information . . . . . . . . . . . . . . 27
Strategy for replacing FRUs . . . . . . . . . 27
Strategy for replacing a hard disk drive . . . 28
Important notice for replacing a system
board . . . . . . . . . . . . . . . . 28
How to use error message . . . . . . . . 28
Strategy for replacing FRUs for CTO, CMV, and
GAV . . . . . . . . . . . . . . . . . . . 28
Product definition . . . . . . . . . . . . 28
FRU identification for CTO, CMV, and GAV
products . . . . . . . . . . . . . . . 29
Chapter 3. General checkout . . . . . 31
What to do first . . . . . . . . . . . . . . 31
Checkout guide . . . . . . . . . . . . . . 32
System supporting the Lenovo ThinkVantage
Toolbox program and the PC-Doctor for DOS
diagnostics program . . . . . . . . . . 32
System supporting the Lenovo diagnostics
programs . . . . . . . . . . . . . . . 36
Power system checkout . . . . . . . . . . . 38
Checking the ac power adapter . . . . . . 38
Checking operational charging . . . . . . 39
Checking the battery pack . . . . . . . . 39
Checking the backup battery . . . . . . . 39
Chapter 4. Related service
information . . . . . . . . . . . . . . 41
Restoring the factory contents by using Recovery
Disc Set . . . . . . . . . . . . . . . . . 41
Passwords . . . . . . . . . . . . . . . . 42
Power-on password . . . . . . . . . . . 42
Hard-disk password. . . . . . . . . . . 42
Supervisor password . . . . . . . . . . 43
How to remove the power-on password . . . 43
How to remove the hard-disk password . . . 43
Power management . . . . . . . . . . . . 44
Screen blank mode . . . . . . . . . . . 44
Sleep (standby) mode . . . . . . . . . . 44
Hibernation mode . . . . . . . . . . . 45
Symptom-to-FRU index . . . . . . . . . . . 45
Numeric error codes . . . . . . . . . . 46
Error messages . . . . . . . . . . . . 46
No-beep symptoms . . . . . . . . . . . 46
LCD-related symptoms . . . . . . . . . 47
Intermittent problems . . . . . . . . . . 47
Undetermined problems . . . . . . . . . 47
Chapter 5. Status indicators . . . . . 49
Chapter 6. Special keys . . . . . . . . 51
Chapter 7. FRU replacement
notices . . . . . . . . . . . . . . . . 53
Screw notices . . . . . . . . . . . . . . . 53
Retaining serial numbers. . . . . . . . . . . 54
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . . 54
Retaining the UUID . . . . . . . . . . . 55
Reading or writing the ECA information . . . 55
Chapter 8. Removing and replacing a
FRU . . . . . . . . . . . . . . . . . . 57
Before servicing ThinkPad Edge E420s and
S420 . . . . . . . . . . . . . . . . . . 57
1010 ExpressCard blank bezel and Media Card
blank bezel . . . . . . . . . . . . . . . . 58
1020 Hard disk drive or solid state drive
assembly . . . . . . . . . . . . . . . . . 60
1030 Keyboard . . . . . . . . . . . . . . 61
1040 Top case assembly. . . . . . . . . . . 63
1050 Backup battery . . . . . . . . . . . . 65
1060 Speaker assembly . . . . . . . . . . . 66
1070 Fingerprint reader . . . . . . . . . . . 66
1080 Touch pad . . . . . . . . . . . . . . 67
1090 Battery pack . . . . . . . . . . . . . 68
1100 Optical drive or travel cover . . . . . . . 69
1110 DIMM . . . . . . . . . . . . . . . . 70
1120 PCI Express Mini Card for wireless LAN . . 71
1130 PCI Express Mini Card for wireless WAN . . 72
1130 mSATA solid state drive . . . . . . . . . 73
1140 Bluetooth daughter card . . . . . . . . 75
1150 Media Card Reader slot board assembly . . 75
1160 System board assembly and fan assembly . 76
1170 DC-in sub card . . . . . . . . . . . . 78
1180 LCD unit . . . . . . . . . . . . . . . 80
2010 LCD bezel assembly . . . . . . . . . . 82
2020 Integrated camera . . . . . . . . . . . 83
2030 Hinges . . . . . . . . . . . . . . . 84
2040 Wireless LAN antenna assembly, wireless
WAN antenna assembly, and LCD rear cover
assembly . . . . . . . . . . . . . . . . . 85
Chapter 9. Locations . . . . . . . . . 87
Front view . . . . . . . . . . . . . . . . 87
Rear view. . . . . . . . . . . . . . . . . 88
Bottom view . . . . . . . . . . . . . . . 88
Chapter 10. Parts list . . . . . . . . . 89
Overall . . . . . . . . . . . . . . . . . . 90
Keyboard . . . . . . . . . . . . . . . . . 96
Miscellaneous parts . . . . . . . . . . . . 97
AC power adapters . . . . . . . . . . . . . 97
Power cords . . . . . . . . . . . . . . . 97
Recovery discs . . . . . . . . . . . . . . 98
Windows XP Professional DVDs . . . . . . 98
Windows 7 Home Basic (32 bit) DVDs. . . . 99
Windows 7 Home Basic (64 bit) DVDs. . . . 99
Windows 7 Home Premium (32 bit) DVDs . . 100
Windows 7 Home Premium (64 bit) DVDs . . 100
Windows 7 Professional (32 bit) DVDs. . . . 101
Windows 7 Professional (64 bit) DVDs. . . . 101
Windows 7 Ultimate (64 bit) DVDs . . . . . 102
Common service tools . . . . . . . . . . . 103
Appendix A. Notices . . . . . . . . . 105
Electronic emissions notices . . . . . . . . . 106
Trademarks . . . . . . . . . . . . . . . . 106
Lenovo-4522-Manual-Page-1-Picture
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