To Use The Flowcharts - HP 16555A Service Manual

Troubleshooting
This chapter helps you troubleshoot the module to find defective assemblies. The
troubleshooting consists of flowcharts, self-test instructions, a cable test, and a test
for the auxiliary power supplied by the probe cable. This information is not intended
for component-level repair.
If you suspect a problem, start at the top of the first flowchart. During the
troubleshooting instructions, the flowcharts will direct you to perform the self-tests
or the cable test.
The service strategy for this instrument is the replacement of defective assemblies.
This module can be returned to Hewlett-Packard for all service work, including
troubleshooting. Contact your nearest Hewlett-Packard Sales Office for more details.
Electrostatic discharge can damage electronic components. Use grounded wriststraps and
C A U T I O N
mats when you perform any service to this instrument or to the cards in it.

To use the flowcharts

Flowcharts are the primary tool used to isolate defective assemblies. The flowcharts refer to
other tests to help isolate the trouble. The circled letters on the charts indicate connections
with the other flowcharts. Start your troubleshooting at the top of the first flowchart.
HP 16500B/C Mainframe Operating System
Before starting the troubleshooting on an HP 16555A/D, ensure that the required version of
HP 16500B/C mainframe operating system is installed on the mainframe. The required
operating system software versions are listed in "Operating System" in chapter 1. To check
the operating system version number, enter the Test menu.
If the proper version is not loaded, obtain a copy of the updated operating system software
and install it on the logic analyzer hard drive. After installation, recycle power on the
mainframe.
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