Undetermined problems, Undetermined, Problems – IBM 2292 User Manual

Page 93

background image

Message/Symptom

FRU/Action

Some

or

all

keys

on

the

keyboard

do

not

work

1.

Keyboard

2.

Keyboard

Cable

3.

System

Board

Undetermined

problems

Check

the

power

supply

voltages

(see

If

the

voltages

are

correct,

return

here

and

continue

with

the

following

steps.

1.

Power-off

the

computer.

2.

Remove

or

disconnect

the

following

components

(if

installed)

one

at

a

time.

a.

Non-IBM

devices

b.

External

devices

(modem,

printer,

or

mouse)

c.

Any

adapters

d.

Riser

card

e.

Memory

modules

f.

Extended

video

memory

g.

External

Cache

h.

External

Cache

RAM

i.

Hard

disk

drive

j.

Diskette

drive

3.

Power-on

the

computer

to

re-test

the

system.

4.

Repeat

steps

1

through

3

until

you

find

the

failing

device

or

adapter.

If

all

devices

and

adapters

have

been

removed,

and

the

problem

continues,

replace

the

system

board.

Chapter

7.

Symptom-to-FRU

index

87