IBM SA38-0512-03 manual FF2, Attempts

Step 1540B-6

One

of

the

FRUs

remaining

in

the

system

unit

is

defective.

1. Turn

the

power

off.

2. Exchange

the following FRUs the order listed.

a. System

board

(See

notes

on

page

2-1)

b. Power supply

3. Turn

the

power

on.

Does

the

operator

panel

stabilize

for

more

than

60

seconds with

code

FDC,

FF2,

FF3,

or

F4D

displayed,

or is

one

of these codes displayed immediately

before

the

system

unit

attempts

to

restart?

NO

Reinstall

the

original

FRU.

Repeat

this

step

until

the

defective FRU is

identified

or

all the FRU

been

exchanged.

If

the

symptom

did

not change and all the FRUs have been

exchanged,

call

your

service

support

person

for

assistance.

If

the

symptom

has

changed,

check for

loose cards, cables, and obvious

problems.

If

you

do

not

find a

problem,

return to “Step 1540B-1” on

page 2-39

in

this

MAP,

and

follow

the

instructions

for

the

new

symptom.

YES

Go

to

"Map

0410:

Repair

Checkout"Diagnosticsin the

Information

for

Multiple

Bus

Systems.

Chapter 2. Maintenance Analysis Procedures 2-43(MAPs)