Sennheiser HDE 2020-D Instruction Manual page 48

V 1.001
Displaying the version number of the bodypack
transmitter/radio microphone
To display the version number of the operating
system installed:
ON/OFF ON/OFF
Bodypack transmitter
Press the SET button.
The operating menu appears and the first menu
item "CHAN" flashes on the display.
Repeatedly press
the display.
Press the SET button.
The version number is displayed.
Using the components
LOW BATT
MUTE
PEAK
SET SET
Radio microphone
/ until "SERVIC" flashes on
47