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
1. Make sure the modem is set up correctly.
2. Replace the modem jack and the modem
card in turn, and run the following test in
Diagnostics --> Communication:
a. Lucent Modem (M2) Loopback
b. Lucent Modem (M2) Dialtone/DTM
c. Intel Modem Register
d. Intel Modem Loopback/DTMF
e. Intel SP Modem Register
f. Intel SP Modem Loopback/DTMF
g. 3Com MiniPCI Modem Test
h. 3Com MiniPCI Dialtone Test
Audio
1. Interactive Tests --> Internal Speaker
2. Diagnostics --> Other Devices --> Crystal
SoundFusion
™
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
Enable 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
46
ThinkPad A20m/p, A21m/p, A22m/p
Summary of Contents for ThinkPad A21m
Page 4: ...iv ThinkPad A20m p A21m p A22m p...
Page 28: ...Laser compliance statement 22 ThinkPad A20m p A21m p A22m p...
Page 76: ...Removing and replacing a FRU 70 ThinkPad A20m p A21m p A22m p...
Page 78: ...continued Removing and replacing a FRU 72 ThinkPad A20m p A21m p A22m p...
Page 108: ...continued Removing and replacing a FRU 102 ThinkPad A20m p A21m p A22m p...
Page 157: ...Notices ThinkPad A20m p A21m p and A22m p 151...
Page 158: ...Part Number 23P0896 1P P N 23P0896...