Performance Tests
TDS 500B, 600B and TDS 700A Service Manual
4–63
c. Modify the initialized front-panel control settings:
H Set the horizontal SCALE to 200 ms.
H Press SET LEVEL TO 50%.
H Use the vertical POSITION knob to center the display on screen.
H Press SHIFT; then press ACQUIRE MENU.
H Press the main-menu button Mode; then press the side-menu button
Average.
H Select 128 averages with the keypad or the general purpose knob.
2. Confirm that the Probe Compensator signal is within limits for frequency:
a. Measure the frequency of the probe compensation signal:
H Press MEASURE; then press the main-menu button Select
Measrmnt for Ch1.
H Repeatedly press the side-menu button –more– until Frequency
appears in the side menu (its icon is shown at the left). Press the
side-menu button Frequency.
b. Check against limits:
H CHECK that the CH 1 Freq readout is within 950 Hz to 1.050 kHz,
inclusive. See Figure 4–23.
H Enter frequency on test record.
H Press MEASURE; then press the main-menu button Remove
Measrmnt for Ch1. Press the side–menu Measurement 1.
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