Performance Tests
1–72 TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications
Positive pulse
Negative pulses
Figure 1–29: Triggered signal range test – 300 mV
n. Use the keypad to set the fine scale to 75 mV (press 75, SHIFT, m, then
ENTER).
o. CONFIRM that the TRIG’D LED stays lighted and that the waveform
on screen is stable. That is, it does not move horizontally or vertically.
Also, CONFIRM that the waveform on the screen has one positive pulse
and a number of negative pulses. See Figure 1–30.