Contents
About this manual . . . . . . . . . . v
Safety information . . . . . . . . . . 1
General safety .
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Electrical safety
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Safety inspection guide .
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Handling devices that are sensitive to electrostatic
discharge
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Grounding requirements .
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Safety notices (multilingual translations) .
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Laser compliance statement (multilingual
translations) .
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Important service information . . . . . 39
Strategy for replacing FRUs .
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Strategy for replacing a hard disk drive .
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Important notice for replacing a system board .
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How to use error message
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Strategy for replacing FRUs for CTO, CMV, and
GAV.
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Product definition .
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. 41
FRU identification for CTO, CMV, and GAV
products .
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General checkout . . . . . . . . . . 43
What to do first .
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Checkout guide .
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Diagnostics using PC-Doctor for DOS
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Lenovo ThinkVantage Toolbox (Lenovo System
Toolbox)
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. 48
PC-Doctor for Rescue and Recovery .
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FRU tests .
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Power system checkout .
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Checking the AC adapter .
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Checking operational charging .
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Checking the battery pack
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Checking the backup battery
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Related service information . . . . . . 55
Restoring the factory contents by using Product
Recovery discs .
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Restoring the factory contents by using Recovery
Disc Set
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Passwords .
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Power-on password
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Hard-disk password
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Supervisor password .
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How to remove the power-on password .
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How to remove the hard-disk password .
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Power management
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Screen blank mode .
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Sleep (Standby) mode .
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Hibernation mode .
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Symptom-to-FRU index .
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Numeric error codes .
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Error messages .
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Beep symptoms .
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No-beep symptoms .
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LCD-related symptoms
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Intermittent problems .
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Undetermined problems .
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Status indicators . . . . . . . . . . 71
Fn key combinations
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FRU replacement notices . . . . . . . 79
Screw notices .
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. 79
Retaining serial numbers .
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Restoring the serial number of the system unit
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Retaining the UUID
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Reading or writing the ECA information
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Removing and replacing a FRU . . . . 83
Before servicing ThinkPad T400s .
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1010 Battery pack .
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1020 Serial Ultrabay Slim device or travel bezel .
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1030 Solid state drive (SSD) or hard disk drive
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1040 DIMM .
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1050 PCI Express Mini Card for wireless LAN .
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1060 PCI Express Mini Card for wireless WAN
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1070 Keyboard .
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1080 Backup battery .
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1090 Wireless USB adapter or Intel Turbo Memory
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1100 Palm rest or palm rest with fingerprint reader 105
1110
Bluetooth
daughter card (BDC-2) .
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1120 Keyboard bezel and speaker assembly .
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. 108
1130 5-in-1 Media Card Reader adapter.
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1140
Bluetooth
–wireless radio switch FPC .
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1150 LCD unit .
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1160 System board, fan assembly, and 34-mm
ExpressCard slot frame .
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1170 I/O sub card and base cover assembly .
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2010 LCD bezel assembly .
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2020 LCD latch L and R .
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2030 Integrated camera or microphone sub card
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2040 LED sub card
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. 132
2050 LCD panel
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2060 LCD cable.
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2070 Hinge kit .
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2080 LED cable .
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. 139
2090 Antenna kit and LCD rear cover assembly
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Locations . . . . . . . . . . . . . 143
Front view .
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. 143
Rear view
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. 144
Bottom view.
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. 145
© Copyright Lenovo 2009
iii
Summary of Contents for ThinkPad T400s
Page 1: ...ThinkPad T400s Hardware Maintenance Manual ...
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