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L R - 4 2 0 0 R E C E I V E R M A N U A L
Unit ID
The unit ID number provides a unique identification for each receiver that is displayed on the OLED status
screen. This can be any 3 digit number between 000 and 999. The unit ID allows venues to track individual
units and for easy dispensing and inventory control. Your Listen receiver has been shipped to you with a
Unit ID of 000.
Brightness Control
The Brightness Control adjusts the level of brightness of the OLED display. There are four settings Auto,
Bright, Dim and Disabled. In the Auto mode the unit uses an internal light sensor and automatically dims
the display when the light level is below approximately 10 Lux. In the Bright, Dim or Disabled mode the
unit disables the light sensor and leaves the OLED in the selected Bright or Dim state. In the disabled
mode the unit disables the display from lighting during normal operation except for the power on
sequence or when the power button is momentarily pressed to check status. The receiver is shipped with
the Auto Brightness Control Mode enabled.
Jack Sense
The jack sense mode when enabled will automatically turn the receiver on when a headset is inserted into
the 3.5 mm output jack on the receiver. The receiver will automatically turn off after 60 seconds when the
headset is removed from the 3.5 mm output jack. Your listen receiver has been shipped to you with the
Jack Sense Mode disabled.
Note: If Jack Sense is on and Auto Power is on, the receiver will ignore jack sense while on the charger.
Unit Information
When a unit is connected to the configuration software the software extracts specific information from the
unit and displays it for the user. This information includes the model number, frequency, Serial Number
and Firmware Version.
Reset to Factory Defaults
The unit can be returned to the factory default settings.
Firmware Update
The firmware update function will check via the internet to see if a firmware update is available for
the receiver.