IBM Application System/400 Service Information page 25

(the Power Down System
Immediate command) on the
command line.
c. Select the I PL type that the
system is currently set at and
mode N (see "Selecting IPL
and Mode" on page 5-2).
d. Verify that an IPL from a
remote location is working cor-
rectly by going to step 5 of this
procedure.
1 0
Start the communications verification func-
tion and run a cable wrap test on the sus-
pected cable by doing the following:
a. Enter
VFYCMN
(the Verify Communications command)
on the command line to show the com-
munications verification display.
Note: For more information on
VFYCMN (the Verify Communications
command), see "Verification Proce-
dures" in the Service Functions User's
Guide.
b. On the next display, enter the line
description name for the communica-
tions line that has the remote power-on
cable attached.
c. Select the Cable test option from the
display that shows a list of tests that
can be performed on a communications
line.
d. Follow all instructions (such as run
problem analysis or attach the wrap
connector).
Did you find the communications problem
using the above procedure?
No Yes
Perform the following:
a. Exchange the failing item indi-
cated, see Chapter 4,
"Removal Procedures" on
page 4-1.
b. Verify that an IPL from a
remote location is working cor-
rectly by going to step 5 of this
procedure.
This ends the procedure.
11
Enter
PRTERRLOG
(the Print Error Log command) on the
command line.
Did the system record any errors in the
error log during the time you were per-
forming this manual IPL?
Note: For information on how to work with
the error log, see "Error Log Utility" under
"System Service Tools" in the Service
Functions User's Guide.
No Yes
Determine the cause of any system
error log entries before continuing
with the next step of this procedure.
1 2
Select M (manual) mode. See "Selecting
IPL and Mode" on page 5-2.
If the preceding steps fail to identify the
problem, exchange the following parts:
Warning: Before exchanging any part,
power off the system (see "Power off' on
page 5-2).
• Chassis (see "Chassis" on page 4-2)
• Communications adapter card (see
"Adapter Card" on page 4-2)
• Communications cable (see "Adapter
Card" on page 4-2)
Notes:
a. Attempt to perform an IPL from a
remote location after exchanging each
part.
b. If you exchange the chassis, you must
set the correct date and time. To set
the correct date and time, see "Setting
the Date and Time" on page 5-3.
13
If the remote IPL does not complete suc-
cessfully after you exchange all the parts
listed in step 12 of this procedure, ask your
next level of support for assistance.
This ends the procedure.
Chapter 1. Starting Problem Isolation
1-13