IBM 6C4 - Manual (Page 175)

Chapter 8. Hardware Problem Determination
This chapter provides information about 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 164. 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
need to respond to the diagnostic programs.
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 Go to “Step 3”.
YES Go to “Component LEDs” on page 11 for more information about your system
LEDs.
Step 3
Are the online diagnostics installed on this system?
NO Go to “Step 16” on page 163.
YES Go to “Step 4” on page 158.
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