5. Turn the Unit On
Press and hold the Power Button for 1 second to turn the receiver on, the unit display will show the
unit ID, battery status and the current channel. Each item will be displayed and then the display will
turn off.
To view the unit ID, battery status or channel while the unit is powered, momentarily press the power
button. To turn the receiver off, press and hold the power button for 3 seconds.
6. Channel Select Mode
The LR-4200-IR receiver operates on 4 wideband channels, Channel 1 (2.3 MHz), Channel 2 (2.8
MHz), Channel 3 (3.3 MHz), and Channel 4 (3.8 MHz).
The Listen receiver is pre-programmed to operate on channel 1 from the factory. To receive audio,
the transmitter/Radiator needs to be broadcasting on Channel 1 or the receiver channel needs to
be reprogrammed to the channel being broadcast. To adjust the receiver to a different listening
channel, press and hold the volume up and down buttons simultaneously for 5 seconds. The current
channel will begin to flash on the display.
Use the volume up or down
button to scroll through the
available channels. Once the
desired channel is located
mometarily press the power
button to save and exit the
channel select mode or if no
button is pressed for 5 seconds
then the selected channel will
be saved and the unit will exit
the channel select mode.
Note: The channel can also be
changed via the iDSP Software
Suite, see page 13
PAGE 9
l
L R - 4 2 0 0 - I R I D S P R E C E I V E R M A N U A L
OLED Display:
Indicates Unit #,
Charge %
and Channel
Assignment
when power
button is pressed
1. Channel
Select Mode:
Press and hold
the up and
down button
simultaneously
for 5 seconds
2. Scroll Up/Down:
Use the up or
down button to
scroll through
available channels
CH 4
#777
3. Save/Exit:
Press power button
to save and exit.
Power Button:
Press and hold for
1 second to turn
on, press and hold
for 3 seconds to
turn off
