IBM ThinkPad R40, Hardware Maintenance Manual

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FRU tests
The following table shows the test for each FRU.
FRU Applicable test
System board 1. Diagnostics --> CPU/Coprocessor
2. Diagnostics --> Systemboard
Power Diagnostics --> Other Devices --> IBM AC
Adapter, IBM Battery 1 (IBM Battery 2)
LCD unit 1. Diagnostics --> Video Adapter
2. Interactive Tests --> Video
Modem,
Modem
daughter card 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 --> Other Devices:
a. Modem Digital Loopback Test
b. Modem Dialtone Test
Audio 1. Interactive Tests --> Internal Speaker
2. Diagnostics --> Other Devices --> Analog
Devices AC97 CODEC Test
Speaker Interactive Tests --> Internal Speaker
PC Card slots Diagnostics --> Systemboard --> PCMCIA,
PCMCIA External Loop
Keyboard 1. Diagnostics --> Systemboard -->
Keyboard
2. Interactive Tests --> Keyboard
TrackPoint or
pointing device If the TrackPoint does not work, check the
configuration in the ThinkPad Configuration
program. If the TrackPoint is disabled, select
Automatic (or Enabled) to enable it.
After you use the TrackPoint, the pointer may
drift on the screen for a short time. This drift
can occur when a slight, steady pressure is
applied to the TrackPoint pointer. This symptom
is not a hardware problem. If the pointer stops
after a short time, no service action is
necessary.
If enabling the TrackPoint does not correct the
problem, continue with the following:
v
Interactive Tests --> Mouse
Hard-disk drive Diagnostics --> Fixed Disks
Diskette drive 1. Diagnostics --> Diskette Drives
2. Interactive Tests --> Diskette
(continued)
Product overview
50
ThinkPad R40