Performance Verification
1710J-Series Waveform Monitors
6–9
The requirements are
H
Gain within 1% for both CH A and CH B inputs
H
X5 gain within 5%
H
Less than 1 major division shift from baseline between unmagnified and
magnified signal
1. Use a 75
W
coaxial cable to connect the Video Amplitude Calibrator (VAC)
output to the 1710J-Series Waveform Monitor CH A input.
2. Use a 75
W
coaxial cable to connect the television test signal generator
linearity output to the CH B input. Do not terminate either loop-through. See
Figure 6–3.
1710J-Series Waveform Monitor
Do not terminate
Television Test Signal Generator
Linearity signal
Video Amplitude
Calibrator
Figure 6–3: Equipment hook-up for checking vertical gain
3. Set the VAC to 999.9 mV.
4. Move A3J500 to the (1–2) OFF position.
5. Adjust VCAL for exactly 140 IRE (1.00 V).
6. Set the VAC to 0.200 V and change the 1710J-Series Waveform Monitor
GAIN to X5.
7. Check that the display is 133 to 147 IRE (0.950 V to 1.05 V).
8. Select CH B input.
9. Terminate the CH B loop-through with a 75
W
end-line terminator.
Check Vertical Gain
Содержание 1710J Series
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