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Chapter 8. Hardware Problem Determination
This chapter provides information on using standalone or online diagnostics to help you
solve hardware problems.
Problem Determination Using the Standalone or Online Diagnostics
Use this procedure to obtain a service request number (SRN) when you are able to
load the Standalone or Online Diagnostics. If you are unable to load the Standalone or
Online Diagnostics, go to "Problem Determination When Unable to Load Diagnostics"
on page 152. The service organization uses the SRN to determine which field
replaceable units (FRUs) are needed to restore the system to correct operation.
Step 1. Considerations before Running This Procedure
Note: See the operator manual for your ASCII terminal to find the key sequences you
v The diagnostics can use a display connected to the video port or an ASCII terminal
attached to a serial port.
v This procedure asks you to select the type of diagnostics you want to run. If you
need more information about the types, see Chapter 5, "Using the Standalone and
Online Diagnostics" on page 91.
v Go to "Step 2.".
Step 2.
Is the Attention LED on?
NO
YES
Step 3
Are the Online Diagnostics installed on this system?
NO
YES
need to respond to the diagnostic programs.
Go to "Step 3".
Go to "Attention LED and Lightpath LEDs" on page 9.
Go to "Step 16" on page 151.
Go to "Step 4" on page 146.
145
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