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Model C860
Special Instructions for System Manager
3M 2003 January
21
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 20.
2. Turn the volume control clockwise to increase the volume or
counterclockwise to decrease it.
Adjusting the
Monitor Speaker
Volume