Fru Tests - IBM ThinkPad R40 Hardware Maintenance Manual

Product overview

FRU tests

The following table shows the test for each FRU.
FRU
System board
Power
LCD unit
Modem,
Modem
daughter card
Audio
Speaker
PC Card slots
Keyboard
TrackPoint or
pointing device
Hard-disk drive
Diskette drive
(continued)
5 0 ThinkPad R40
A pplicable test
1. D iagnostics --> CPU/Coprocessor
2. D iagnostics -- > S ystem board
D iagnostics -- > O ther Devices -- > IBM AC
Adapter, IBM B attery 1 (IBM Battery 2)
1. D iagnostics --> Video A dapter
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
D iagnostics -- > O ther Devices:
a. Modem Digital Loopback Test
b. Modem Dialtone Test
1. Interactive Tests --> Internal Speaker
2. D iagnostics -- > O ther Devices -- > A nalog
Devices AC97 CODEC Test
Interactive Tests -- > Internal Speaker
D iagnostics -- > System board -- > PCMCIA,
PCMCIA External Loop
1. D iagnostics --> S ystem board -->
Keyboard
2. Interactive Tests -- > Keyboard
If the TrackPoint does not work, check the
configuration in the ThinkPad Configuration
program. If the TrackPoint is disabled, select
A utom atic (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:
• Interactive Tests --> Mouse
D iagnostics -- > Fixed Disks
1. D iagnostics --> Diskette Drives
2. Interactive Tests -- > Diskette