Keysight M9502A, Руководство пользователя

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Keysight M9502A/M9505A AXIe Chassis User Guide 111
Troubleshooting Troubleshooting and Service
Troubleshooting
Overview
The Keysight AXIe chassis is typically used as part of a complex test system ,
where system refers to the complete hardware/software system including:
-
One or more AXIe chassis with installed application modules
-
Connections from modules to devices under test (DUT)
-
A host PC running Keysight Connection Expert software, chassis and module
device drivers, and programming environment software
- LAN connection from the Host PC to Chassis Web Interface software
- A compatible PCIe host cable adapter installed and configured in the PC
- Compatible PCIe and LAN interface cables
Troubleshooting that complete test system is beyond the scope of this chapter.
Keysight recommends that to properly isolate complex operational problems, you
take all routine steps to rule out a host software or connectivity issue.
You may also wish to physically isolate the chassis from your DUT or installed
modules, to distinguish a module hardware issue from a chassis hardware issue.
As a temporary measure, you may (with the chassis powered down) partially
remove a module without disturbing DUT connections, by removing it far enough
to disengage it from the chassis backplane.
Keysight recommends returning a failing chassis to Keysight Service. They will
inspect, test and replace failed components, then retest the chassis.
In general, an AXIe chassis has three major subsystems that can be replaced to
service a failing chassis:
- Fan Tray
- Power Supply Unit (PSU)
- Embedded System Module (ESM)
This chapter assumes you can identify a suspected faulty subsystem, or have
access to known good replacement subsystems you can swap to help isolate a
hardware problem. Detailed step-by-step instructions are provided for fan tray,
PSU, and ESM replacement.
Normal Chassis Operating Behavior
When the chassis is new and operating properly, familiarize yourself with its
expected normal power-up and power-down behavior. This behavior involves
these observable components:
- Front panel power switch (mechanical feel and indicator light)
- Rear panel circuit breaker (mechanical feel and resulting relay activation)