IBM Thinkpad T40 Manual

The options on the test menu are as follows:
Diagnostics Interactive Tests
vRun Normal Test
vRun Quick Test
vCPU/Coprocessor
vSystemboard
vVideo Adapter
vSerial Ports
vParallel Ports
vFixed Disks
vDiskette Drives
vOther Devices
vCommunication
vWireless LAN
vMemory Test–Full
vMemory Test–QuickvKeyboard
vVideo
vInternal Speaker
vMouse
vDiskette
vSystem Load
vCD-ROM/DVD Test
vIntel Wireless Radio
Notes:
vIn theKeyboardtest inInteractive Tests, the Fn key
is scanned only once. Each key should be held down...

To cancel the test, press Esc.
Note:After executing PC-Doctor, check the system
time/date and reset them if needed.
Detecting system information with
PC-Doctor
PC-Doctor can detect the following system information:
Hardware InfovSystem Configuration
vMemory Contents
vPhysical Disk Drives
vLogical Disk Drives
vVGA Information
vIDE Drive Info
vPCI Information
vPNPISA Info
vSMBIOS Info
vVESA LCD Info
UtilityvRun External Tests
vSurface Scan Hard Disk
vBenchmark System
vDOS Shell
vTech Support Form
vBattery...

Power system checkout
To verify a symptom, do the following:
1. Power off the computer.
2. Remove the battery pack.
3. Connect the ac adapter.
4. Check that power is supplied when you power on the
computer.
5. Power off the computer.
6. Disconnect the ac adapter and install the charged
battery pack.
7. Check that the battery pack supplies power when you
power on the computer.
If you suspect a power problem, see the appropriate one
of the following power supply checkouts:
v“Checking the ac adapter”...

Checking operational chargingTo check whether the battery charges properly during
operation, use a discharged battery pack or a battery pack
that has less than 50 % of the total power remaining when
installed in the computer.
Perform operational charging. If the battery status indicator
or icon does not turn on, remove the battery pack and let it
return to room temperature. Reinstall the battery pack. If
the charge indicator or icon still does not turn on, replace
the battery pack.
If the charge...

Note:Recharging will take at least 3 hours, even if the
indicator does not turn on.
If the voltage is still less than +11.0 V dc after
recharging, replace the battery.
4. If the voltage is more than +11.0 V dc, measure the
resistance between battery terminals 4 and 5. The
resistance must be 4 to 30 K.
If the resistance is not correct, replace the battery
pack. If the resistance is correct, replace the system
board.
Checking the backup batteryDo the following:
1. Power off the computer, and unplug the ac...

Checkout guide
42ThinkPad T40 Series (MT 2373, 2374, 2375, 2376) 

ThinkPad T40 Series
Product overview............45
Specifications............45
Status indicators...........47
FRU tests.............49
Fn key combinations..........51
Symptom-to-FRU index..........54
Numeric error codes..........54
Error messages...........58
Beep symptoms...........59
No-beep symptoms..........59
LCD-related symptoms.........60
Intermittent problems..........61
Undetermined problems.........61
FRU replacement notices.........62
Screw notices............62
Retaining serial...

Bottom view............136
Parts list..............137
T40 series model matrix........137
Overall.............142
AC adapters............148
LCD FRUs............149
14.1-in. XGA TFT.........149
14.1-in. SXGA+ TFT........151
Keyboard.............152
Recovery CDs...........153
For Windows XP professional......153
For Windows 2000.........154
Miscellaneous parts..........155
Optional FRUs...........157
Common parts list..........158
Tools.............158
Power cords (system)........158
Power cords (ThinkPad...

Product overview
This section presents the following product-unique
information:
v“Specifications”
v“Status indicators”on page 47
v“FRU tests”on page 49
v“Fn key combinations”on page 51
Specifications
The following table lists the specifications of the ThinkPad
T40 series:
Feature Description
ProcessorvIntel®Pentium®M processor 1.3 GHz,
L2 512 KB cache
vIntel
®Pentium®M processor 1.5 GHz,
L2 512 KB cache
vIntel
®Pentium®M processor 1.6 GHz,
L2 512 KB cache
Bus architecturev400 MHz PSB (Processor System...

Feature Description
Ultrabay Slim device
(standard)v9.5 mm height DVD drive
v9.5 mm height DVD/CD-RW combo
drive
Displayv14.1-inch, 16M colors, XGA (1024×768
resolution) TFT color LCD
v14.1-inch, 16M colors, SXGA+ (1400×
1050 resolution) TFT color LCD
I/O portvExternal monitor connector
vStereo headphone jack
vMonaural microphone jack
vInfrared port
vParallel connector
vDocking connector
vRJ11 connector
vRJ45 connector
vTV-out connector (S-Video)
vUniversal serial bus (USB) connector×
2 (compatible with...