C120 OPERATION
mately five hundred (500) times before
it should be replaced.
Adjusting the Headset
Public IR Usage
On the top of the headset (receiver) there
is a switch labeled "HOME/AWAY." When
using the headset to listen to the television with
the included base, set switch to "HOME." For
use with public infrared systems, set the switch
to "AWAY."
Volume Control
There is a volume control wheel on the top of
the headset where the volume may be controlled
easily. Turn the wheel in the direction of the
"+" to increase volume and toward the "-" to
decrease the volume. See Figure 19 on page 13.
Powering On
When the headset arms are extended, the unit
automatically powers on. See Figure 16. When
the headset is removed from the head, the arms
will return to the "off" position. If there is no
audio signal being detected by the C120 for
ninety (90) seconds, it will power down.
Note: The infrared sensor that communicates
with the transmitter base is on the front of the
headset and should remain within sight of the
C120 base. See Figure 17.
12
HOME
AWAY
2.3 MHz
95 kHz
FIG. 15
ON
OFF
FIG. 16
Base
Headset front
FIG. 17
FIG. 18
C120 OPERATION
AUXILIARY HEADSET CONTROLS
Balance Control
This adjusts the volume balance between the Left and Right earphones.
The small supplied screwdriver will be needed to adjust this control.
Tone Controls
There are two controls for tone, one for each earphone (left and right).
The small supplied screwdriver will be needed to adjust this control.
FIG. 19
C120 Headset
HOME AWAY
L
R
Secondary
battery charging
location
DC 12V
plug-in
Line
Phone
Stereo/Mono
C120 Transmitter
Switch
Right/Left
Speaker
inputs
INCLUDED
Rechargeable
Battery
Microphone
plug-in
13