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Lenovo ThinkPad T420si Hardware Maintenance Manual - Page 146

Windows 7 Professional (32 bit) DVDs, CTO, J7x, J8x, JCx, JDx, JEx, JHx, JTx, JVx, JWx, JXx, K9x, KQx

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Table 28. Parts list-Windows 7 Home Premium (64 bit) recovery DVDs (continued) Language P/N Japanese Korean (English-enable) Polish Portuguese (English-enable) Romanian (English-enable) Russian Serbian-Latin (English-enable) Simplified Chinese Slovak (English-enable) Spanish Traditional Chinese (English-enable) Traditional Chinese for Hong Kong S.A.R (English-enable) Turkish (English-enable) US English US English disable 04T3711 04T3712 04T3713 04T3714 04T3715 04T3716 04T3719 04T3702 04T3717 04T3718 04T3703 04T3709 04T3720 04T3722 04T3721 Windows 7 Professional (32 bit) DVDs Windows 7 Professional (32 bit) is preinstalled as the operating system in the following models: • 4170-CTO • 4171-CTO, 6Fx, 6Gx, 6Yx • 4172-CTO • 4173-CTO, J7x, J8x, JCx, JDx, JEx, JHx, JTx, JVx, JWx, JXx, K9x, KQx, LDx • 4174-CTO, NVx, NTx Table 29. Parts list-Windows 7 Professional (32 bit) recovery DVDs Language P/N English French German HongKong/English Japanese Simplified Chinese Spanish Nordics (DK/FI/SV/NO/EN) EMEA (NL/FR/GR/IT/EN) 04T1402 04T1398 04T1399 04T1612 04T1400 04T1397 04T1401 04T1403 04T1404 CRU ID CRU ID * 140 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)	30
Chapter 2. Important service information	37
Strategy for replacing FRUs	37
Strategy for replacing a hard disk drive	38
Important notice for replacing a system board	38
How to use error message	38
Strategy for replacing FRUs for CTO, CMV, and GAV	38
Product definition	38
FRU identification for CTO, CMV, and GAV products	39
Chapter 3. General checkout	41
What to do first	41
Checkout guide	42
System supporting the Lenovo ThinkVantage Toolbox program and the PC-Doctor for DOS diagnostics program	42
System supporting the Lenovo diagnostics programs	46
Power system checkout	48
Checking the ac power adapter	49
Checking operational charging	50
Checking the battery pack	50
Checking the backup battery	50
Chapter 4. Related service information	53
Restoring the factory contents by using Product Recovery discs	53
Restoring the factory contents by using Recovery Disc Set	53
Passwords	55
Power-on password	55
Hard disk password	55
Supervisor password	55
How to remove the power-on password	55
How to remove the hard disk password	56
Power management	56
Screen blank mode	56
Sleep (standby) mode	57
Hibernation mode	57
Symptom-to-FRU index	58
Numeric error codes	59
Error messages	60
Beep symptoms	60
No-beep symptoms	61
LCD-related symptoms	61
Intermittent problems	62
Undetermined problems	62
Chapter 5. Status indicators	63
Chapter 6. Fn key combinations	67
Chapter 7. FRU replacement notices	69
Screw notices	69
Retaining serial numbers	70
Restoring the serial number of the system unit	70
Retaining the UUID	71
Reading or writing the ECA information	71
Chapter 8. Removing and replacing a FRU	73
Before servicing ThinkPad T420s and T420si models	73
1010 Battery pack	74
1020 Serial Ultrabay Slim device or travel bezel	75
1030 Solid state drive (SSD) or hard disk drive (HDD)	76
1040 DIMM	78
1050 PCI Express Mini Card for wireless LAN	80
1060 PCI Express Mini Card for wireless WAN	83
1070 4–in–1 media card reader	85
1080 Keyboard	86
1090 Backup battery	89
1100 Palm rest with fingerprint reader, smart card reader, and speaker	90
1110 LCD unit	94
1120 DC-in sub card	96
1130 Bluetooth daughter card (BDC-3.0)	97
1140 Bluetooth-wireless radio switch FPC	97
1150 System board, fan assembly, 34-mm ExpressCard reader, and base cover	99
1160 mSATA	105
2010 LCD bezel assembly	107
2020 LCD panel	108
2030 Integrated camera, microphone, or hall sensor card	110
2040 LED sub card	112
2050 LCD cable	113
2060 Hinge kit	114
2070 LED cable	116
2080 Antenna kit and LCD rear cover assembly	117
Chapter 9. Locations	121
Front view	121
Rear view	122
Bottom view	122
Chapter 10. Parts list	123
Overall	124
LCD FRUs	134
Keyboard	139
Miscellaneous parts	140
ac power adapter	140
Power cords	141
Recovery discs	142
Windows XP Professional (32 bit) DVDs	142
Windows Vista Home Basic (32 bit) DVDs	142
Windows Vista Business (32 bit) DVDs	143
Windows 7 Home Basic (32 bit) DVDs	143
Windows 7 Home Basic (64 bit) DVDs	144
Windows 7 Ultimate (32 bit) DVDs	144
Windows 7 Ultimate (64 bit) DVDs	144
Windows 7 Home Premium (32 bit) DVDs	145
Windows 7 Home Premium (64 bit) DVDs	145
Windows 7 Professional (32 bit) DVDs	146
Windows 7 Professional (64 bit) DVDs	147
Windows 7 Professional (32 bit) Rapid Boot DVDs	148
Common service tools	148
Appendix A. Notices	149
Electronic emissions notices	150