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Probe Compensation
TDS 620A, 640A, & 644A User Manual
4. If you need to change the input impedance, press Coupling (main). Then
toggle the side menu selection to get the correct impedance.
5. Press SHIFT ACQUIRE MENU ➞ Mode (main) ➞ Hi Res (side).
6. Adjust the probe until you see a perfectly flat top square wave on the
display. Figure 3-58 shows where the adjustment is located.
Figure 3-58: P6139A Probe Adjustment
See
Probe Accessories
, on page 3-97.
See
Probe Selection
, on page 3-112.
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