Performance Tests
4-80
TDS7104 & TDS7054 Service Manual
H Record the setting of the DC generator.
H Adjust the output of the DC calibration generator until it precisely
overlaps the base (lower) level of the stored probe compensation
signal. (This value will be near zero volts).
H Record the setting of the DC generator.
f. Press Close to remove the menus from the display. See Figure 4--38.
Figure 4- 38: Measurement of probe compensator amplitude
g. Check against limits:
H Subtract the value just obtained (base level) from that obtained
previously (top level).
H CHECK that the difference obtained is within 990 mV to 1010 mV,
inclusive.
H Enter voltage difference on test record.
3. Disconnect the hookup: Disconnect the cable from CH 1.
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