Symptom Action
The system stopped and a code is displayed on
the operator panel.
Go to the “Entry MAP” on page 75.
The system stops with a prompt to enter a
password.
Enter the password. You are not allowed to
continue until a correct password has been
entered. When you have entered a valid
password, go to the beginning of this table and
wait for one of the other conditions to occur.
The diagnostic operating instructions are
displayed.
Go to MAP 0020 in the
Diagnostics Information
for Multiple Bus Systems
.
The primary I/O drawer power on/off LED does
not come on or does not stay on or you have a
power problem.
Go to “MAP 1520: Power” on page 89.
The system login prompt is displayed. You may not have pressed the correct key or
you may not have pressed the key soon
enough when you were to indicate a service
mode IPL of the diagnostic programs. If this is
the case, start over at the beginning of this
step.
Note: Perform the system shutdown procedure
before turning off the system.
If you are sure you pressed the correct key in a
timely manner, go to “Step 1020-2” on page 87.
The system does not respond when the
password is entered.
Go to “Step 1020-2” on page 87.
The system stopped. A POST indicator is
displayed on the system console and an
eight-digit error code is not displayed.
If the POST indicator represents:
1. Memory, go to “MAP 1540: Minimum
Configuration” on page 113.
2. Keyboard
a. Replace the keyboard.
b. Go to “MAP 1540: Minimum
Configuration” on page 113.
3. Network, go to “MAP 1540: Minimum
Configuration” on page 113.
4. SCSI, go to “MAP 1540: Minimum
Configuration” on page 113.
5. Speaker, go to “MAP 1540: Minimum
Configuration” on page 113.
The System Management Services menu is
displayed
Go to “Step 1020-4” on page 88.
All other symptoms. If you were directed here from the Entry MAP,
go to “MAP 1540: Minimum Configuration” on
page 113. Otherwise, find the symptom in the
“Entry MAP” on page 75.
86 Service Guide
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