Tektronix TLA7AA1, Manual, Page: 106 / 173

Adjustment Procedures
TLA7AXX Logic Analyzer Module Service Manual
5- 5
Self calibration is an internal routine that optimizes performance at the current
ambient temperature to maximize measurement accuracy. No external equipment
or user actions are needed to complete the procedure. The logic analyzer module
saves data generated by the self calibration in nonvolatile memory. Passing self
cal provides a higher level of confidence of module functionality.
NOTE
. Performing the self calibration does not guarantee that all parameters
operate within limits. Operation within limits is achieved by performing the
adjustment procedures. Verification of operation within limits is accomplished by
performing the performance verification procedures.
You can run the self calibration at any time during normal operation. To maintain
measurement accuracy, perform the self calibration if the following conditions
occur:
H
After repair and replacement of any circuit board.
H
It has been a year since the last self calibration was run.
1. Ensure that the instrument has had a 30-minute warm up before attempting
the self calibration, and that the logic analyzer application is running.
2. Disconnect any probes connected to the logic analyzer module.
3. Select Calibration and Diagnostics from the System menu.
4. Select the Self Calibration tab page.
5. Select the logic analyzer module.
6. Click the Run button to start the self calibration.
The self calibration takes several minutes to complete, depending on the
number of channels in the module. Upon successfully completing the self
calibration, the module status changes from Running to Calibrated, and the
Date and Time field is set to the present.
Self Calibration