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Performance Verification
AM700 Audio Measurement Set Service Manual
4–19
26. Touch the Advanced Analog Controls soft key.
27. Touch the Output Impedance soft key.
28. Select 600
W and press the Enter button.
29. Press Clear Menu button.
30. Check to see that the Level reading dropped to approximately 500 mV
(509.9 mV) (within a few percent).
1. Set the B analog generator to follow mode.
2. Set the A analog generator to 5 V at 8 kHz.
3. Check the B generator output for 5 V at 8 kHz
1. Press the Control button in the generator section.
2. Touch Waveform Control and set the generator output to 0.0 Volt.
3. Touch the Advanced Analog Controls icon.
4. Check that the Output Common is set to ground. (Touching the Output
Common selection area toggles between Ground and Floating.)
5. Connect the ohmmeter ground to the AM700 chassis ground through the
special banana plug to phone plug adapter cable shown in Figure 4–11.
12
3
Banana plug, black
Banana plug, red
1/4I Phone plug. Connect
to sleeve only.
XLR Female.
Connect to pin 1.
Figure 4–11: Impedance check adapter cables
6. Connect the ohmmeter + lead to the XLR output through the banana plug to
XLR female adapter cable shown in Figure 4–11. It is only necessary to
check one output; ground and float are the same for both.
7. Use an ohmmeter to check that pin 1 of the XLR output is approximately
0 W to 10 W to ground (typically less than 5 W).
Check Follow Mode
Check Generator Float