AKG DMM14 U Reference Manual page 82

Description
DMM14 MANUAL
Ground connection
Figure 6: Phoenix terminal
A Phoenix terminal connects the housing to the 0 V potential of the power
supply.
Only bridge the 0 V potential with the grounding (factory setting) or connect
it to the central system ground, as otherwise the phantom power has no
reference point and will not function.
Analog control
VCA
Figure 7: Phoenix terminal
A linear 50 kΩ potentiometer at the VCA input, labeled "VCA" and "", allows
you to vary the master volume.
Poti 50k
lin.
Figure 8: VCA
The linear potentiometer is connected to the VCA input as shown above.
The resistance at the VCA input is changed by turning the potentiometer
This value is input and the volume is changed accordingly The left setting
signifies 0% while the right setting signifies 100%.
VCA
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