Symptom /

Error

FRU

/

Action

in

Sequence

 

 

 

 

 

 

 

 

 

 

 

 

Unable

to

communicate

1. Make

sure

the

setup

 

 

using the

Infrared (IR)

Portfor .the

 

IR

is correct.

 

 

 

 

 

 

Use

the

 

ThinkPad

 

 

 

 

 

 

Configurations

utility.

 

 

 

 

2.

Make

 

sure

there

 

are

 

 

 

 

no

fluorescent

lights

 

 

 

 

 

near

the

 

computer.

 

 

 

 

 

The

computer

may

 

 

 

 

 

 

receive

optical

noise

 

 

 

 

from

the

 

fluorescent

 

 

 

 

light.

 

 

 

 

 

 

 

 

 

3.

Run

the

 

advanced

 

 

 

 

diagnostic

test.

If an

 

 

 

 

error

 

occurs

and

a

 

 

 

 

FRU

code

is

displayed,

 

 

 

 

replace

the

parts

 

 

 

 

shown

 

by

 

the

FRU

 

 

 

 

code.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Keyboard- or TrackPoint-Related

Symptoms

Symptom

/ Error

 

 

 

 

FRU

/

Action

in

Sequence

 

 

 

 

 

 

 

 

 

The

keyboard

(one

or

more1. Reseat

the

keyboard

 

keys)

does

not

work.

 

cable

on

the

DC/DC

 

 

 

 

 

 

 

 

card.

 

 

 

 

 

 

 

 

 

 

 

2.

Keyboard

 

 

 

 

 

 

 

 

3.

System board

 

 

 

 

 

 

 

 

 

The

TrackPoint

does

not

1. Reseat

the

keyboard

 

work.

 

 

 

 

 

 

cable

on

the

DC/DC

 

 

 

 

 

 

 

 

card.

 

 

 

 

 

 

 

 

 

 

2.

Go

to

“TrackPoint

 

 

 

 

 

 

 

 

Checkout”

on page 16.

 

 

 

 

 

 

 

3.

Keyboard

 

 

 

 

 

 

 

4.

System board

 

 

 

 

 

 

 

 

 

The

pointer

moves

 

See

“TrackPoint

 

 

 

automatically

 

or

does

notCheckout”

on

page 16.

work

correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD-Related Symptoms

 

Important

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The TFT

LCD

 

for

the notebook

computer

contains

 

over 2,359,296 thin-film transistors (TFTs). A small

 

number

of

missing, discolored,

or

lighted dots

(on all

the time) is characteristic of TFT LCD technology, but

excessive

pixel

problems can

cause

viewing concerns.

The LCD should be replaced if the number of missing,

discolored,

 

or

lighted dots

in

any21 backgroundor

is

more .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

Page 32
Image 32
IBM 380Z manual Keyboard- or TrackPoint-Related Symptoms, LCD-Related Symptoms, More, Make, Is correct