M3SR Series 4100 Operating Concept
3.6 Operating Manual 6175.4760.02 – 01
3.2.1 Radio Front Panel
The front panel contains several buttons, volume controls and the ERASE button, which are
used to make a limited number of radio settings. LEDs are available to indicate the status of
the radio.
Figure 3.4 Front Panel
1 Indicators for used power supply (battery, AC/DC)
2 ON/OFF button
3 ERASE button
4 Radio status indicators (TX, GO, RX)
5 INT/EXT button
6 Volume control (loudspeaker / headphone)
7 Connector for the loudspeaker / headphone
8 Connector for the headset
9 Volume control (headset)
10 Connector for fillgun
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