Find the symptom in the following table; then follow the instructions given in the Action
column.
Symptom Action
Power Problems
You have been directed here by the SRC tables, the SRC
is 00002222.
Go to “I/O Rack Becomes Powered On, But A
Rack-Mounted Unit Does Not Become Powered On” on
page 97.
The system attention LED on the operator panel is on;
there may or may not be an error code displayed on the
operator panel.
In addition to function 11, error codes can also appear in
function 5. Look at function 5 and record the error code
shown. Go to “(1xxx) System Power Control Network
(SPCN) Reference Codes” on page 189 and find the
reference code.
System rack does not become powered on Go to “Cannot Power On System Rack (No Error Code)”
on page 90.
I/O drawer does not become powered on (I/O rack Power
light at the power distribution bus is not on).
Go to “Cannot Power On I/O Rack (No Error Code)” on
page 95.
I/O racks became powered on, but one or more
rack-mounted units do not become powered on (no error
code).
Go to “I/O Rack Becomes Powered On, But A
Rack-Mounted Unit Does Not Become Powered On” on
page 97
The system rack, I/O rack, or a rack mounted unit does
not become powered off.
Go to “System Rack, I/O Rack, or Rack-Mounted Unit
Cannot Be Powered Off” on page 100.
You have been directed here by the SRC tables, the SRC
is 1xxx1200.
Go to “The SRC Table Directed You Here and the SRC is
1xxx1200” on page 102.
You have been directed here by the SRC tables, the SRC
is 1xxx120y, where y=1-6.
Go to “The SRC Table Directed You Here and the SRC is
1xxx120y or 1xxx140y” on page 105.
You have been directed here by the SRC tables, the SRC
is 1xxx140y, where y=1-6.
Go to “The SRC Table Directed You Here and the SRC is
1xxx120y or 1xxx140y” on page 105.
You have been directed here by the SRC tables, the SRC
type is 1xxx, and the reference code is 6018, 6118, 6218,
6318, 631A, 633A, 6518, 6618, 6718, 671A, 6A18, 6x38
or CE19.
Go to “Regulator Problem Isolation” on page 110.
You have been directed here by the SRC tables, the SRC
is 1xxx640x.
Go to “Power Good Problem Isolation” on page 112.
You have been directed here by the SRC tables, the SRC
type is 1xxx, and the reference code is 7201 or 7300.
Go to “AC Box Problem Isolation” on page 114.
Chapter 3. Maintenance Analysis Procedures
89
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