2
A.
Base Station
The base station is the electronic heart of the System 500. It
contains the circuitry through which all functions of the drive-
thru audio system are channeled.
External base station features are shown in Figure 2, and
described on page 3. Its internal features are shown in Figure
8, and the base station circuit board switches and adjustments
are listed on page 15.
Figure 2. Base station exterior
