Special Instructions for System Manager Model C960
3M 2000 May
However, if local ordinances require quieter nighttime operation of the menu
sign, move the VOLUME DAY/NIGHT switch to the NIGHT position.
If the system has an optional monitor speaker, adjust its volume using the
following procedure:
1. With the base station turned ON, insert a small straight–blade screwdriver
into the MONITOR VOLUME access hole. See Figure 23.
2. Turn the volume control clockwise to increase the volume or
counterclockwise to decrease it.
Adjusting the
Monitor Speaker
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