Time Base System Checks; Figure 1-12: Initial Test Hookup - Tektronix TDS 500D Technical Reference

Time Base System Checks

Check Accuracy for
Long-Term Sample Rate
and Delay Time
TDS 500D, TDS 600C, TDS 700D & TDS 714L Performance Verification and Specifications
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These procedures check those characteristics that relate to the Main and Delayed
time base system and are listed as checked under Warranted Characteristics in
Specifications.
Equipment One time-mark generator (Item 11), or
required Sine wave generator (Item 14)
One 50 W, precision coaxial cable (Item 5)
Prerequisites See page 1–17
Time Mark or
Sine Wave
Generator
Output
50 W coaxial cable
Figure 1–12: Initial test hookup
1. Install the test hookup and preset the instrument controls:
a. Hook up the test-signal source: Connect, through a 50 W precision
coaxial cable, the output of the generator to CH 1 (see Figure 1–12).
H If using a time-mark generator, set the output for 10 ms markers.
H If using a sine wave generator, set the output for 1.2 V and 500 kHz.
b. Initialize the oscilloscope:
H 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:
H Set the vertical SCALE to 200 mV (or 500 mV with the optional
Tektronix TG 501A Time Mark Generator).
H Set the horizontal SCALE of the Main time base to 2 ms.
Performance Tests
Oscilloscope
1–53