Tektronix TLA7AA1, Manual, Page: 55 / 173

Operating Information
2- 12
TLA7AXX Logic Analyzer Module Service Manual
Self calibration is an internal routine that optimizes performance. No external
equipment or user actions are required to complete the procedure. The logic
analyzer saves the data generated by the self calibration in non-volatile memory.
NOTE
. Performing the self calibration does not guarantee that all logic analyzer
module parameters operate within limits. Operation within limits is achieved by
performing the
Adjustment Procedures. Proper operation may be confirmed by
performing the performance verification procedures in this same manual.
You can run the self calibration at any time during normal operation. To maintain
measurement accuracy, perform the self calibration if more than one year has
elapsed since the last self calibration.
You can check the status of the self calibration in the Calibration and Diagnostics
property sheet.
If the logic analyzer module loses power during the self calibration, rerun the
self calibration following the next power-on. The self calibration data generated
before power was interrupted must be replaced with a complete set of new data.
For best results, always perform the self calibration after at least a 30 minute
warm-up.
The logic analyzer module may require several minutes to run the self calibration
depending on the number of channels. Select Calibration and Diagnostics
property sheet from the System menu. Select the Self Calibration tab page and
select the logic analyzer module. Click on the Run button to start the self
calibration. Upon completing the self calibration the logic analyzer module menu
selection changes from Running to Calibrated.
The logic analyzer is controlled by interactive windows through the TLA
application. The TLA application consists of the following windows:
H
System Window. This window provides an overview of the entire logic
analyzer. Use this window to navigate through the logic analyzer.
The center of the System window displays icons that represent hardware
modules installed in the logic analyzer. The icons are linked to the other
windows in the logic analyzer.
H
Setup Window. A setup window exists for each module in the logic analyzer.
It contains all of the setup information for the logic analyzer module such as
clocking, memory depth, threshold information, and channel information.
Menus and dialogs contain information to set up the window as needed.
Self Calibration
Menu Overview