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Performance Tests
TDS 520A, 524A, 540A, & 544A Performance Verification
These procedures check those characteristics that relate to the Main and
Delayed time base system and are listed as checked under
Warranted Char-
acteristics
in Section 2,
Specifications.
Check Accuracy for Long-Term Sample Rate, Delay Time,
and Delta Time Measurements
Equipment Required:
One time-mark generator (Item 12) and one precision
coaxial cable (Item 4).
Prerequisites:
See page 1-15.
Procedure:
1.
Install the test hookup and preset the instrument controls:
a.
Hook up the test-signal source
: Connect, through a 50 precision
coaxial cable, the time-mark output of a time-mark generator to CH 1.
Set the output of the generator for 10 ms markers. See Figure 1-12.
Time-Mark
Generator
Output
50 Coaxial Cables
Figure 1-12: Initial Test Hookup
b.
Initialize the oscilloscope:
Press save/recall SETUP.
Press the main-menu button Recall Factory Setup.
Press the side-menu button OK Confirm Factory Init.
c.
Modify the initialized front-panel control settings:
Set the vertical SCALE to 500 mV.
Press VERTICAL MENU; then press the main-menu button
Coupling. Press the side-menu button to 50 .
Press SET LEVEL TO 50%.
Use the vertical POSITION knob to center the test signal on
screen.
Set the horizontal SCALE of the Main time base to 1 ms.
Time Base System
Checks