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Performance Verification
4–10
AM700 Audio Measurement Set Service Manual
13. In the Generator Control menu (see Figure 4–4), select the High Bandwidth
generator mode. The Analog B generator is automatically set to Follow A.
14. Touch the Waveform Control icon (on the left side of the screen), and set the
generator for a frequency of 10 kHz at an amplitude of 0.0 dBu. Press the
Clear Menu button.
15. Check the FFT display to see that the generator is producing a signal on
Ch 1 and Ch 2, and check that the noise floor is –100 dB or lower.
1. In the Generator controls section, press the Control button to display the
generator selection menu as shown in Figure 4–4.
2. Set the analog generator to High Resolution.
3. Touch the Waveform Control icon to display the waveform controls menu
shown in Figure 4–5. Make sure Analog A is the selected generator. Select
Analog A if it is not the selected generator.
4. Touch the Amplitude readout box, and press the Units button in the key pad
area to change from dBu to V. Each press of the Units button steps to the
next available units choice; step as needed to get the units set to V.
5. Set the Analog A generator for a sine wave output at a voltage of 3.5 V and a
frequency of a 120 Hz.
6. Set Analog B to Sine by touching the Waveform edit box (now reading
“Follow A”) and turning the large control knob until Sine has the box around
it. Make the selection either by touching Sine or pressing the Enter key in
the key pad area.
7. Make Analog B the selected generator and set Ch B for same initial settings
of frequency and voltage so the Analog A and Analog B generators have the
same signal output. Reselect Analog A as the controlled generator.
8. Connect the Analog A output of the generator to the input of the external
RMS meter. Use the dual banana to XLR connector to connect to the RMS
meter + and – connectors. Use the single banana connector to connect to the
RMS meter ground connection. The adapter cable wiring is shown in
Figure 4–7.
Analog Generator Outputs