Performance Verification
013-0278-00 Video Display Clamp
13
Test signal (channel 2)
Corrected signal (channel 1)
Figure 10: Gain check
These procedures check those characteristics that relate to crosstalk interference
and timing of the Video Display Clamp listed as checked under
Warranted
Characteristics
in the
Specifications
section
.
Equipment Required:
One test oscilloscope (Item 1), one pulse generator
(Item 8), one precision coaxial cable (Item 2), one 2.5X attenuator (Item 4), and
one 50
Ω
terminator (Item 3), and one dual-input coupler (Item 5).
1.
Set the test oscilloscope as follows:
H
Set the sec/div scale to 10
s
H
Set the channel 1 volts/div scale to 5 mV, DC coupled
H
Set the channel 2 volts/div scale to 100 mV, DC coupled
H
Position both channel 1 and channel 2 traces to center screen
H
Display channel 2 (channel 1 off)
2.
Connect the output of the pulse generator to the test oscilloscope as shown in
Figure 11.
Crosstalk and Timing
Checks