Initial Setup - Lectronics R400A Quick Start Manual

Initial Setup

1. Connect the power cord from the power supply to the Power Input Jack.
2. Attach the antennas or antenna cables to the MAIN ANT and DIV ANT
BNC connectors.
3. Press the POWER/PREV MENU button to turn on the unit. Check to see
that the LCD displays the three-screen Power Up Sequence:
Lectrosonics
R400A VXX where XX is the current firmware version installed
Block XX where XX is the frequency tuning range block number
After the Power Up Sequence is displayed, the Main Window appears and
the R400A is ready for operation.
4. Ensure the receiver and transmitter are set to the same Compatibility
Mode, then locate a clear operating frequency (see Frequency Coordina-
tion.) Then set the Transmitter Frequency Select Switches to match the
receiver's operating frequency. (See R400A Menu Options.)
5. Turn the transmitter on and verify that an RF signal is indicated on the LCD.
6. Connect an audio cable to the appropriate audio output jack. Because
the audio outputs operate independently, external equipment can be
connected to either, or both output jacks.
7. Locate a clear operating frequency. The easiest method is to use Smart-
Tune™ and then set the transmitter frequency indicated on the display.
Note: For more detailed instructions, see "Using SmartTune
Scan Function" on page 7.
8. Refer to the associated transmitter operating instructions and adjust the
transmitter gain.
Warning: This is perhaps the most important step in the setup
procedure.
In general, adjust the transmitter gain so that the voice peaks will cause the
audio modulation level indicators on both the receiver and transmitter
to show full modulation on the loudest peak audio levels. Normal levels
should cause the R400A's audio level bar to fluctuate fully resulting in
the best possible signal to noise ratio for the system.
Note: A common mistake is to use the transmitter audio gain control
to set the overall audio level of the entire system. The transmitter gain
control is not a volume control and must be set independently of the
overall system audio level. The transmitter gain control is only used
to set the proper modulation of the transmitter. It is used to match the
transmitter to the type of microphone and the sound levels that will be
present at that microphone. We encourage users to either disconnect
the rest of the sound system or turn the sound system gain to minimum
to prevent either feedback or overload as the transmitter gain is set.
Only after the transmitter gain control is set should the gain of the rest
of the audio system be adjusted to achieve the desired sound or signal
levels.
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