Tektronix LTA7P Series, Service Manual

Page: 140 / 172

Troubleshooting
6- 32
TLA7Nx, TLA7Px, & TLA7Qx Logic Analyzer Module Service Manual
H
know how to run extended diagnostics and self calibration
To fill these requirements, read the topics below before performing the
Fault
Isolation Procedure on page 6--33.
The following calibration and diagnostic procedures will help you diagnose
problems.
Self Calibration.
Use self calibration to calibrate the installed modules. Run the
self calibration after a minimum of a 30 minute warm-up and prior to running the
extended diagnostics. For more information on when to run the self calibration,
refer to
Running the Self Calibration on page 2--8.
Power-On Diagnostics.
Power-on diagnostics check basic functionality of the
logic analyzer at every power on. If any failures occur at power on, the screen
displays the calibration and diagnostics property sheet.
If there are no diagnostic failures when you power on the logic analyzer, you can
display and run the calibration and diagnostics property sheet by selecting
Calibration and Diagnostics from the System menu.
Extended Diagnostics. The extended diagnostics execute more thorough tests than
the power-on diagnostics. Using the extended diagnostics, you can do the
following tasks:
H
Run tests individually or as a group
H
Run tests once or continuously
H
Run tests until a failures occur
NOTE
. Certain diagnostic tests will fail if probes are attached. For best results,
run the diagnostics with probes disconnected from the module.
To run the extended diagnostics, do the following steps:
1. Disconnect probes from the module(s).
2. Start the TLA700 Series application if it is not already running.
3. From the System menu, select Calibration and Diagnostics.
4. Select the Extended Diagnostics property page.
5.
Select the individual tests, group of tests, or all tests.
6. Click the Run button.
Calibration and
Diagnostics Procedures