8
Mains power
The mains power indicator is placed on the right side on the front panel. If this LED is lit the
driver is correctly connected to the mains outlet and the driver is ready for use.
Correct microphone level
To the left the LED for indication of the microphone sensitivity of the mic input is located. If
the mic sensitivity control is correctly set, this LED shall light up at program peaks.
Loop current
At the centre of the front panel the LED for loop current is located. This LED is blinking
according to the program material and indicates that the loop is not broken. Please note
that this LED only indicates that there is current floating in the loop, not that the level is
sufficient.
The volume thumb wheel and the bass and treble controls are also located on the front
panel.
Indication
mains
power
Indication
microphone
sensitivity
Indication
loop current
Volume
control
Bass
control
Treble
control
Indication lights and controls
There are three blue LED’s on the front panel to indicate that all functions of the hearing
loop driver work in a proper way.
