Fru Tests - IBM ThinkPad T40 Hardware Maintenance Manual

Indicator
6 Caps lock
7 Num lock
8 Bluetooth
status
9 Wireless
status

FRU tests

The following table shows the test for each FRU.
FRU
System board
Power
LCD unit
Modem
daughter card
(MDC or
BMDC)
Audio
Speaker
PC Card slots
Keyboard
Hard-disk drive
(continued)
Meaning
Green:
Caps Lock mode is enabled. To enable or
disable Caps Lock mode, press the Caps
Lock key.
Green:
The numeric keypad on the keyboard is
enabled. To enable or disable the keypad,
press and hold the Shift key, and press the
NumLk (ScrLk) key.
Green:
Bluetooth is operational. This indicator is on
when the Bluetooth is on and not in
suspend mode.
Green:
The wireless feature (the IEEE 802.11
standard) is on, and the radio link is ready
for use.
Blinking green:
Data is being transmitted.
Applicable test
1. Diagnostics --> CPU/Coprocessor
2. Diagnostics --> Systemboard
Diagnostics --> Other Devices --> IBM AC
Adapter, IBM Battery 1 (IBM Battery 2)
1. Diagnostics --> Video Adapter
2. Interactive Tests --> Video
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. Lucent Soft Modem Loopback
b. Lucent Soft Modem Dialtone
1. Interactive Tests --> Internal Speaker
2. Diagnostics --> Other Devices --> Analog
Devices AC97 CODEC Test
Interactive Tests --> Internal Speaker
Diagnostics --> Systemboard --> PCMCIA,
PCMCIA External Loop
1. Diagnostics --> Systemboard -->
Keyboard
2. Interactive Tests --> Keyboard
Diagnostics --> Fixed Disks
ThinkPad T40 Series
Product overview
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