Contents
About
this
manual
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. v
Safety
information
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. 1
General
safety
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. 2
Electrical
safety
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. 3
Safety
inspection
guide
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. 5
Handling
devices
that
are
sensitive
to
electrostatic
discharge
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. 6
Grounding
requirements
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. 6
Safety
notices:
multilingual
translations
.
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. 7
Laser
compliance
statement
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. 14
Important
service
information
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.
. 17
Strategy
for
replacing
FRUs
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. 17
Strategy
for
replacing
a
hard
disk
drive
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. 18
Important
notice
for
replacing
a
system
board
.
. 18
How
to
use
error
message
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. 18
Strategy
for
replacing
FRUs
for
CTO,
CMV,
and
GAV
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. 19
Product
definition
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. 19
FRU
identification
for
CTO,
CMV,
and
GAV
products
.
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. 19
Important
information
about
replacing
RoHS
compliant
FRUs
.
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. 21
General
checkout
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. 23
What
to
do
first
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. 24
Checkout
guide
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. 25
Diagnostics
using
PC-Doctor
for
DOS
.
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. 26
PC-Doctor
for
Windows
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. 28
PC-Doctor
for
Rescue
and
Recovery
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. 28
Power
system
checkout
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. 29
Checking
the
ac
adapter
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. 29
Checking
operational
charging
.
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. 30
Checking
the
battery
pack
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. 30
Checking
the
backup
battery
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. 31
Related
service
information
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.
. 33
Restoring
the
factory
contents
by
using
Product
Recovery
discs
.
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. 33
Passwords
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. 34
Power-on
password
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. 34
Hard-disk
password
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. 34
Supervisor
password
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. 34
How
to
remove
the
power-on
password
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. 35
How
to
remove
the
hard-disk
password
.
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. 35
Power
management
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. 37
Screen
blank
mode
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. 37
Standby
mode
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. 37
Hibernation
mode
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. 38
Symptom-to-FRU
index
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. 39
Numeric
error
codes
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.
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. 39
Error
messages
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. 43
Beep
symptoms
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. 44
No-beep
symptoms
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. 44
LCD-related
symptoms
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. 45
Intermittent
problems
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. 46
Undetermined
problems
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. 46
ThinkPad
T400
and
R400
(14.1-inch
widescreen)
.
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. 47
Specifications
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. 48
Status
indicators
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. 50
FRU
tests
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. 53
Fn
key
combinations
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. 55
FRU
replacement
notices
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. 58
Screw
notices
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. 58
Retaining
serial
numbers
.
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. 59
Removing
and
replacing
a
FRU
.
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.
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.
. 62
1010
Battery
pack
.
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.
. 63
1020
Serial
Ultrabay
Slim
device
or
Serial
Ultrabay
Enhanced
device
.
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. 64
1030
Hard
disk
drive
(HDD)
cover,
HDD,
and
HDD
rubber
rails
or
solid
state
drive
(SSD)
and
storage
converter
.
.
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. 66
1040
Palm
rest
or
palm
rest
with
fingerprint
reader
.
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. 68
1050
DIMM
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. 71
1060
Backup
battery
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. 72
1070
Keyboard
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. 73
1080
Modem
daughter
card
(MDC-3.0)
.
.
.
. 75
1090
PCI
Express
Mini
Card
for
wireless
LAN
.
. 77
1100
PCI
Express
Mini
Card
for
wireless
WAN
81
1110
Intel
Turbo
Memory
Minicard
or
wireless
USB
adapter
.
.
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.
. 83
1120
SIM
card
slot
.
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. 85
1130
Keyboard
bezel
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. 87
1140
Speaker
assembly
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. 89
1150
Fan
assembly
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.
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. 91
1160
CPU
.
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. 96
1170
LCD
assembly
.
.
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.
. 97
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
.
.
.
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.
. 100
1190
Structure
frame
.
.
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.
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.
.
. 106
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
.
.
.
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.
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.
. 110
2010
LCD
front
bezel
.
.
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.
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.
. 114
2020
LCD
rear
cover
.
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.
. 116
2030
Inverter
card
.
.
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.
. 117
2040
Bluetooth
daughter
card
(BDC-2.1)
.
.
. 118
2050
LCD
magnesium
frame,
hinge
assembly,
and
integrated
camera
.
.
.
.
.
.
.
.
. 119
2060
Antenna
assembly
.
.
.
.
.
.
.
.
. 122
2070
LCD
panel
and
LCD
cable
.
.
.
.
.
. 124
©
Copyright
Lenovo
2008
iii
Summary of Contents for XT904UT
Page 1: ...ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 2: ......
Page 3: ...ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 8: ...vi ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 24: ...16 ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 30: ...22 ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 40: ...32 ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 232: ...224 ThinkPad T400 and R400 14 1 inch widescreen Hardware Maintenance Manual ...
Page 235: ......