IBM SA38-0512-03 manual Other

Step 1540A-6

One of the FRUs remaining in the system unit is defective.

1. Turn the power off.

2. Exchange one of the FRUs in the following list.

Ÿ System board (See notes on 2-1.)

ŸPower supply.

3.Turn the power on.

Does	the operator			panel	do	one	of the	following:
Ÿ	Stop	with	any	code	other		than
	–	FDC,	FF2,	FF3,	or	F4D	(Model	140)
	–	E1DC,	E1F2,		E1F3,		E1F7,	or E14D (Model 150)

ŸAlternate between

–

FFD

and

any

other

code

(Model

140)

–

E1FD

and

any

other

code

(Model

150)

NO

Go

to

"Map

0410:

Repair

Checkout"Diagnosticsin the

Information

for

Multiple

Bus

Systems.

YES

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

1540A-1”

on

page 2-22

in

this

MAP,

and follow

the

instructions

for

the

new

symptom.

Chapter 2. Maintenance Analysis Procedures 2-27(MAPs)