CMX DMS 7640 - Electronic Volume Control

Location of controls
Version 1 cmx® DMS 7640 Seite 12 von 31
4.4. Electronic volume control
This unit uses an electronic volume control (push button type).
To increase or decrease the loudness of unit, press the
“VOL+” (volume up) or “VOL-“ (volume down) key
respectively.
Release the key when volume level is at the desired
loudness.
Sometimes, especially during listening to the radio, you may
notice a “click-click-click” (repeating) sound when you are
increasing or decreasing the volume. This is a normal
condition & the sound will disappear when you release the
volume key (when you reach the desired volume level).