IBM THINKPAD T22 User Manual download pdf (Page 52)

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. Lucent Soft Modem Loopback (T23

only)

d. Lucent Soft Modem Dialtone (T23 only)

e. Intel Modem Register

f. Intel Modem Loopback/DTMF

g. Intel SP Modem Register

h. Intel SP Modem Loopback/DTMF

i. 3Com MiniPCI Modem Test

j. 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

(continued)

Product overview

46 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

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