FRU tests
The following table shows the test for each FRU.
FRU Applicable test
System board 1. Diagnostics --> CPU/Coprocessor
2. Diagnostics --> Systemboard
3. If the docking station or the port replicator
is attached to the ThinkPad computer,
undock it. Place the computer on a
horizontal surface, and run Diagnostics -->
ThinkPad Devices --> HDD Active

Protection Test.

Note: Do not apply any physical shock to

the computer while the test is running.
Power Diagnostics --> ThinkPad Devices --> AC
Adapter, Battery 1 (Battery 2)
LCD unit 1. Diagnostics --> Video Adapter
2. Interactive Tests --> Video
Modem
daughter card
(MDC-2) or
Bluetooth
/Modem
daughter card
(BMDC-3)
1. Make sure the modem is set up correctly.
2. Replace the modem jack and the modem
card in turn, and run the following tests in

Diagnostics --> Communication:

a. Conexant Smart Modem Interrupt
b. Conexant Smart Modem Dialtone
Audio 1. Interactive Tests --> Internal Speaker
2. Diagnostics --> Other Devices --> Analog
Devices AC97 CODEC Test
Speaker Interactive Tests --> Internal Speaker
PC Card slot 1. Diagnostics --> Systemboard --> PCMCIA
2. Insert a PC Card Wrap Plug into every PC
Card slot, and run Diagnostics -->
Systemboard --> PCMCIA External Loop
ExpressCard
slot
1. Insert a PCI-Express/USB Wrap card into
the ExpressCard slot.
2. Turn on the computer.
3. Run Diagnostics --> ThinkPad Devices
--> ExpressCard slot.
Keyboard 1. Diagnostics --> Systemboard -->
Keyboard
2. Interactive Tests --> Keyboard
Hard disk drive Diagnostics --> Fixed Disks
Diskette drive 1. Diagnostics --> Diskette Drives
2. Interactive Tests --> Diskette
DVD drive or
DVD/CD-RW
combo drive
1. Diagnostics --> Other Devices -->
CD-ROM/DVD

2. Interactive Tests --> CD-ROM/DVD Test

(continued)
Product overview

ThinkPad T43 Series 53