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Lenovo 2904G2U User Manual - Page 113

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Table 18. Removal steps of wireless USB adapter or Intel Turbo Memory (continued) 3 Removing and replacing a FRU 105

Section	Page
Contents	5
About this manual	7
Safety information	9
General safety	10
Electrical safety	11
Safety inspection guide	13
Handling devices that are sensitive to electrostatic discharge	14
Grounding requirements	14
Safety notices (multilingual translations)	15
Laser compliance statement (multilingual translations)	36
Important service information	47
Strategy for replacing FRUs	47
Strategy for replacing a hard disk drive	48
Important notice for replacing a system board	48
How to use error message	48
Strategy for replacing FRUs for CTO, CMV, and GAV	49
Product definition	49
FRU identification for CTO, CMV, and GAV products	49
General checkout	51
What to do first	52
Checkout guide	53
Diagnostics using PC-Doctor for DOS	53
Testing the computer	54
Detecting system information with PC-Doctor	55
Lenovo ThinkVantage Toolbox (Lenovo System Toolbox)	56
PC-Doctor for Rescue and Recovery	56
FRU tests	57
Power system checkout	59
Checking the AC adapter	59
Checking operational charging	60
Checking the battery pack	60
Checking the backup battery	61
Related service information	63
Restoring the factory contents by using Product Recovery discs	63
Restoring the factory contents by using Recovery Disc Set	64
Passwords	65
Power-on password	65
Hard-disk password	65
Supervisor password	66
How to remove the power-on password	66
How to remove the hard-disk password	67
Power management	68
Screen blank mode	68
Sleep (standby) mode	68
Hibernation mode	69
Symptom-to-FRU index	70
Numeric error codes	70
Error messages	74
Beep symptoms	75
No-beep symptoms	75
LCD-related symptoms	76
Intermittent problems	77
Undetermined problems	77
Status indicators	79
Fn key combinations	83
FRU replacement notices	87
Screw notices	87
Retaining serial numbers	88
Restoring the serial number of the system unit	88
Retaining the UUID	88
Reading or writing the ECA information	89
Removing and replacing a FRU	91
Before servicing ThinkPad T400s, T410s, and T410si	92
1010 Battery pack	93
1020 Serial Ultrabay Slim device or travel bezel	94
1030 Solid state drive (SSD) or hard disk drive (HDD)	95
1040 DIMM	97
1050 PCI Express Mini Card for wireless LAN	100
1060 PCI Express Mini Card for wireless WAN	103
1070 Keyboard	106
1080 Backup battery	111
1090 Wireless USB adapter or Intel Turbo Memory	112
1100 Palm rest or palm rest with fingerprint reader	114
1110 Bluetooth daughter card (BDC-2)	116
1120 Keyboard bezel and speaker assembly	117
1130 5-in-1 Media Card Reader adapter	121
1140 Bluetooth–wireless radio switch FPC	122
1150 LCD unit	124
1160 System board, fan assembly, and 34-mm ExpressCard slot frame	128
1170 I/O sub card and base cover assembly	136
2010 LCD bezel assembly	138
2020 LCD latch L and R	140
2030 Integrated camera or microphone sub card	141
2040 LED sub card	143
2050 LCD panel	145
2060 LCD cable	148
2070 Hinge kit	149
2080 LED cable	151
2090 Antenna kit and LCD rear cover assembly	153
Locations	155
Front view	155
Rear view	156
Bottom view	157
Parts list	159
Overall	160
LCD FRUs	185
Keyboard	199
Miscellaneous parts	200
AC adapters	203
Power cords	204
Recovery discs	205
Windows XP Professional (32 bit) DVDs	205
Windows Vista Starter Edition (32 bit) DVDs	207
Windows Vista Home Basic (32 bit) DVDs	208
Windows Vista Home Premium (32 bit) DVDs	209
Windows Vista Business (32 bit) DVDs	210
Windows Vista Business (64 bit) DVDs	212
Windows Vista Ultimate (32 bit) DVDs	213
Windows 7 Home Basic (32 bit) DVDs	214
Windows 7 Home Premium (32 bit) DVDs	215
Windows 7 Home Premium (64 bit) DVDs	217
Windows 7 Professional (32 bit) DVDs	219
Windows 7 Professional (64 bit) DVDs	223
Common service tools	225
Notices	227

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Table 18. Removal steps of wireless USB adapter or Intel Turbo Memory (continued)

Removing and replacing a FRU

105