Product overview

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

 

 

SoundFusionTest

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

If the TrackPoint does not work, check the

pointing device

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)

46ThinkPad A20m/p, A21m/p, A22m/p

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IBM A20M, A21M, A22P, A22M, A21P, MT 2631 manual FRU tests, Following table shows the test for each FRU