Performance Tests — Semi-Automated Method
TDS7104 & TDS7054 Service Manual
4-19
Overview of the Procedure
To perform this procedure you must have the specific equipment listed in
Table 4--1.
After the controller is set up, you need to install the performance verification test
program from the TDS7000 Series Product Software CD-ROM that was shipped
with the oscilloscope. An installer will assist you with the installation of the test
program.
When you start the test program a screen of introductory information is
displayed that contains instructions, a text entry line, and function buttons. You
use these controls to navigate through the steps of the test program. You can
either click (or touch) the function buttons in the screen or use the function keys
on the keyboard. The keyboard is required for text entry.
The procedure is semi automated. Once the program is started, most of the steps
will run without manual intervention; this part takes about 15 minutes. At that
point, the test program stops and gives you instructions for setup changes you
will need to make before the test can proceed. The remainder of the test requires
setup changes for each step. The overall time to complete the test is about 30
minutes. The test sequence is summarized in Table 4 --2.
When the test is complete, you can save or print a report that lists the actual
performance of the oscilloscope relative to its specifications. The test report is an
ACSII text file written to the directory C:\tekcats\rpt\. The filename of the
report is <oscilloscope model>.<serial number>. If you run repeated tests
on the same oscilloscope, the results are appended to the end of the existing
report file.
Table 4- 2: Test sequence overview
Step Process or check Comments
1 Check DC volt age measurement
accuracy
Runs unat tended af ter initial setup
2 Check analog bandwidth
3 Check channel is olation
4 Check long-term sample rate and delay
time accuracy
5 Check trigger sensitivity
6 Check time accuracy for pulse, glitch,
timeout, and width triggering
7 Characterize signal source outputs
1
Requires manual setup changes
8 Check delay between channels May require manual setup changes
9 Check delta time measurement accuracy Requires manual setup changes