Tektronix 013-0278-XX, Инструкция по эксплуатации

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Performance Verification
10
013-0278-00 Video Display Clamp
Test signal (channel 2) Corrected signal (channel 1)
Figure 7: Back porch correction check (negative)
7. Set the test oscilloscope to display channel 2 (channel 1 off).
8. Set the pulse generator as follows:
H
Set the high level to --0.8 volts
H
Set the low level to --1.0 volts
H
Set the compliment to +
9.
Set the Video Display Clamp
Polarity
to
+
(positive).
10. Set the test oscilloscope to display channel 1 (channel 2 off).
11. Verify that the negative portion of the pulse is within
±
14 mV of the ground
reference (see Figure 8).