ContentsAbout this manual . . . . . . . . . . vSafety information . . . . . . . . . . 1General safety . . . . . . . . . . . . . . 2Electrical safety . . . . . . . . . . . . . 3Safety inspection guide . . . . . . . . . . . 5Handling devices that are sensitive to electrostaticdischarge . . . . . . . . . . . . . . . 6Grounding requirements . . . . . . . . . . 6Safety notices (multilingual translations) . . . . . 7Important service information . . . . . 29Strategy for replacing FRUs . . . . . . . . . 30Strategy for replacing a hard disk drive . . . . 30Important notice for replacing a system board . . 31How to use error message . . . . . . . . 31Strategy for replacing FRUs for CTO, CMV, andGAV. . . . . . . . . . . . . . . . . 32Product definition . . . . . . . . . . . 32FRU identification for CTO, CMV, and GAVproducts . . . . . . . . . . . . . . 32General checkout . . . . . . . . . . 35What to do first . . . . . . . . . . . . . 36Checkout guide . . . . . . . . . . . . . 37Diagnostics using PC-Doctor for DOS . . . . 37Lenovo ThinkVantage Toolbox (Lenovo SystemToolbox) . . . . . . . . . . . . . . 40PC-Doctor for Rescue and Recovery . . . . . 40FRU tests . . . . . . . . . . . . . . 41Power system checkout . . . . . . . . . . 43Checking the AC adapter . . . . . . . . . 43Checking operational charging . . . . . . . 44Checking the battery pack . . . . . . . . 44Checking the backup battery . . . . . . . 45Related service information . . . . . . 47Restoring the factory contents by using RecoveryDisc Set . . . . . . . . . . . . . . . 47Passwords . . . . . . . . . . . . . . . 48Power-on password . . . . . . . . . . 49Hard-disk password . . . . . . . . . . 49Supervisor password . . . . . . . . . . 49How to remove the power-on password . . . . 49How to remove the hard-disk password . . . . 50Power management . . . . . . . . . . . 52Screen blank mode . . . . . . . . . . . 52Sleep mode . . . . . . . . . . . . . 52Hibernation mode . . . . . . . . . . . 52Symptom-to-FRU index . . . . . . . . . . 53Numeric error codes . . . . . . . . . . 53Error messages . . . . . . . . . . . . 56No-beep symptoms . . . . . . . . . . . 56LCD-related symptoms . . . . . . . . . 57Intermittent problems . . . . . . . . . . 58Undetermined problems . . . . . . . . . 58Status indicators . . . . . . . . . . 59Special keys . . . . . . . . . . . . 61FRU replacement notices . . . . . . . 63Screw notices . . . . . . . . . . . . . . 63Retaining serial numbers . . . . . . . . . . 64Restoring the serial number of the system unit 64Retaining the UUID . . . . . . . . . . 64Reading or writing the ECA information . . . 65Removing and replacing a FRU . . . . 671010 Battery pack . . . . . . . . . . . . 681020 Bottom slot cover. . . . . . . . . . . 701030 DIMM . . . . . . . . . . . . . . 721040 Hard disk drive (HDD). . . . . . . . . 731050 PCI Express Mini Card for wireless LAN . . . 751060 PCI Express Mini Card for wireless WAN . . 771070 Keyboard . . . . . . . . . . . . . 791080 Top case assembly and microphone module . . 821090 Backup battery . . . . . . . . . . . 861100 Bluetooth daughter card (BDC-2) . . . . . 871110 Speaker assembly. . . . . . . . . . . 881120 System board and fan assembly . . . . . . 901130 I/O card assembly, audio cable, and I/O cable 981140 LCD unit . . . . . . . . . . . . . 1001150 Base cover assembly and DC-in cable . . . 1022010 LCD bezel assembly . . . . . . . . . 1052020 Integrated camera . . . . . . . . . . 1062030 LCD panel and LCD cable . . . . . . . 1072070 Hinge kit . . . . . . . . . . . . . 1102050 Wireless LAN antenna assembly, wirelessWAN antenna assembly, and LCD rear coverassembly . . . . . . . . . . . . . . . 112Locations . . . . . . . . . . . . . 115Front view . . . . . . . . . . . . . . 115Bottom view. . . . . . . . . . . . . . 116Parts list . . . . . . . . . . . . . 117Overall . . . . . . . . . . . . . . . 118LCD FRUs . . . . . . . . . . . . . . 126Keyboard. . . . . . . . . . . . . . . 129AC adapters. . . . . . . . . . . . . . 130Miscellaneous parts . . . . . . . . . . . 130Power cords . . . . . . . . . . . . . . 131Recovery discs . . . . . . . . . . . . . 132Windows 7 Home Basic (32 bit) DVDs . . . . 132Windows 7 Home Premium (32 bit) DVDs . . 132Windows 7 Home Premium (64 bit) DVDs . . 133Windows 7 Professional (32 bit) DVDs . . . . 134© Copyright Lenovo 2009 iii