Adjustment Procedure
7–10
1710J-Series Waveform Monitors
4. Connect a probe from the test oscilloscope to the junction of R854 and
R755. See Figure 7–2 for locations.
5. Adjust C953 (RGB Comp) for best transient response.
6. Remove the connections from the REMOTE connector.
The component to adjust is A3R489.
1. Set the VERTICAL Position control fully clockwise.
2. Connect the voltmeter lead to the collector (transistor case) of Q280. See
Figure 7–2.
3. Adjust R489 (Limit Cent) for +0.8 V.
4. Set the VERTICAL Position control fully counterclockwise.
5. Connect the voltmeter lead to the collector (transistor case) of Q289. See
Figure 7–2.
6. Check that the voltage is +0.8 V. If it is not, repeat steps 1 through 5 until
the collector voltages are balanced at the same DC level.
The component to adjust is A3R689.
1. Use a 75
W
coaxial cable to connect the VAC signal to the 1710J-Series
Waveform Monitor CH A input; do not terminate the remaining side of the
loop-through input. See Figure 7–5.
2. Set the VAC for an output of 999.9 mV.
3. Move A3J500 (DC Restore) to the 1-2 (Off) position.
1710J-Series Waveform Monitor
Do not terminate
Video Amplitude Calibrator
Figure 7–5: Equipment setup for adjusting the calibrator amplitude
Vertical Amplifier Output
Bias
Calibrator Signal
Amplitude
Содержание 1710J Series
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Страница 23: ...Getting Started ...
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