Contents

About this manual . . . . . . . . . .v

Safety information . . . . . . . . . .1

General safety . . . . . . . . . . . . . .2

Electrical safety . . . . . . . . . . . . .3
Safety inspection guide . . . . . . . . . . .5
Handling devices that are sensitive to electrostatic

discharge . . . . . . . . . . . . . . .6

Grounding requirements . . . . . . . . . .6

Safety notices: multilingual translations . . . . .7

Laser compliance statement . . . . . . . . .14

Important service information . . . . .17

Strategy for replacing FRUs . . . . . . . . .17

Strategy for replacing a hard disk drive . . . .18

Important notice for replacing a system board . .18

How to use error message . . . . . . . .18

Strategy for replacing FRUs for CTO, CMV, and

GAV . . . . . . . . . . . . . . . . .19

Product definition . . . . . . . . . . .19

FRU identification for CTO, CMV, and GAV

products . . . . . . . . . . . . . .19

Important information about replacing RoHS

compliant FRUs . . . . . . . . . . . . .21

General checkout . . . . . . . . . .23

What to do first . . . . . . . . . . . . .24

Checkout guide . . . . . . . . . . . . .25

Diagnostics using PC-Doctor for DOS . . . .26

PC-Doctor for Windows . . . . . . . . .28

PC-Doctor for Rescue and Recovery . . . . .28

Power system checkout . . . . . . . . . .29

Checking the ac adapter . . . . . . . . .29

Checking operational charging . . . . . . .30

Checking the battery pack . . . . . . . .30

Checking the backup battery . . . . . . .31

Related service information . . . . . .33

Restoring the factory contents by using Product

Recovery discs . . . . . . . . . . . . .33

Passwords . . . . . . . . . . . . . . .34

Power-on password . . . . . . . . . .34

Hard-disk password . . . . . . . . . .34

Supervisor password . . . . . . . . . .34

How to remove the power-on password . . . .35

How to remove the hard-disk password . . . .35

Power management . . . . . . . . . . .37

Screen blank mode . . . . . . . . . . .37

Standby mode . . . . . . . . . . . .37

Hibernation mode . . . . . . . . . . .38

Symptom-to-FRU index . . . . . . . . . .39

Numeric error codes . . . . . . . . . .39

Error messages . . . . . . . . . . . .43

Beep symptoms . . . . . . . . . . . .44

No-beep symptoms . . . . . . . . . . .44

LCD-related symptoms . . . . . . . . .45

Intermittent problems . . . . . . . . . .46

Undetermined problems . . . . . . . . .46

ThinkPad T400 and R400 . . . . . . .47

Specifications . . . . . . . . . . . . . .48

Status indicators . . . . . . . . . . . . .51

FRU tests . . . . . . . . . . . . . . .54

Fn key combinations . . . . . . . . . . .56

FRU replacement notices . . . . . . . . . .59

Screw notices . . . . . . . . . . . . .59

Retaining serial numbers . . . . . . . . .60

Removing and replacing a FRU . . . . . . . .63

1010 Battery pack . . . . . . . . . . .64

1020 Serial Ultrabay Slim device or Serial

Ultrabay Enhanced device . . . . . . . .65

1030 Hard disk drive (HDD) cover, HDD, and
HDD rubber rails or solid state drive (SSD) and

storage converter . . . . . . . . . . .67

1040 Palm rest or palm rest with fingerprint

reader . . . . . . . . . . . . . . .69

1050 DIMM . . . . . . . . . . . . .72

1060 Backup battery . . . . . . . . . .73

1070 Keyboard . . . . . . . . . . . .74

1080 Modem daughter card (MDC-3.0) . . . .76

1090 PCI Express Mini Card for wireless LAN . .78

1100 PCI Express Mini Card for wireless WAN 82

1110 Intel Turbo Memory Minicard or wireless

USB adapter . . . . . . . . . . . . .84

1120 SIM card slot . . . . . . . . . . .86

1130 Keyboard bezel . . . . . . . . . .88

1140 Speaker assembly . . . . . . . . .90

1150 Fan assembly . . . . . . . . . . .92

1160 CPU . . . . . . . . . . . . . .97

1170 LCD assembly . . . . . . . . . . .98

1180 Base cover, USB sub card with cable, and
PC Card/ExpressCard slots (or
ExpressCard/Smart Card slots or
ExpressCard/7-in-1 Media Card Reader slots)

bezel assembly . . . . . . . . . . . . 101

1190 Structure frame . . . . . . . . . . 107

1200 System board and PC Card/Express Card
slots (or ExpressCard/Smart Card slots or
ExpressCard/7-in-1 Media Card Reader slots)
bezel assembly . . . . . . . . . . . . 111

2010 LCD front bezel . . . . . . . . . .115

2020 LCD rear cover . . . . . . . . . .117

2030 Inverter card . . . . . . . . . . .118

2040 Bluetooth daughter card (BDC-2.1) . . .119

2050 LCD magnesium frame, hinge assembly,

and integrated camera . . . . . . . . . 120

2060 Antenna assembly . . . . . . . . . 123

2070 LCD panel and LCD cable . . . . . . 125

Locations . . . . . . . . . . . . . . . 127

© Copyright Lenovo 2008, 2009 iii