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Operating Information
AM700 Audio Measurement Set Service Manual
2–13
Figure 2–11: Input selection control panel
Analog Input Connections. Touch the select soft key associated with the Analog A
and Analog B input connections to toggle between the front-panel XLR
connector and the internal Generator routing. The front-panel XLR inputs are the
default choice for signal input to the AM700. Selecting the internal generator
routing permits testing of the generator/analyzer pair without using intercon-
necting cables.
Input Impedance. Analog Input Impedance is selected from a three-choice
pull-down menu. The choices are 150 W, 600 W, and 200 kW (high). The 200 kW
choice is the default selection. Perform the following steps to change input
impedance:
1. Touch the Impedance soft key to display the pull-down menu choices.
2. Rotate the large control knob to select the proper choice for your measure-
ment.
3. Touch the Impedance soft key a second time to make the assignment and
clear the menu.
The Input Impedance choice is not available for an internally connected
generator.