Lectrosonics R175 - Manual (Page 4)

SYSTEM SETUP AND OPERATION
1) Connect the supplied CH-12 to the power jack on the rear panel.
2) Attach the antenna.
3) Connect the audio cable.
XLR Output: Pin 1 - ground
Pin 2 - audio (+)
Pin 3 - audio (-)
4) Set front panel switch to “ON.” Check to see that the red POWER LED lights up.
5) Adjust transmitter “GAIN.”
This is perhaps the most important step in the set up procedure. (see your transmitter manual for specific
instructions on the proper gain adjustment of your transmitter)
6) Adjust AUDIO LEVEL control according to the type of input on your equipment. The input levels on different
equipment vary which may require that you set the AUDIO LEVEL control in an intermediate position of the
control. Try different settings and listen to the results. If the output of the receiver is too high, you may hear
distortion or a loss of the natural dynamics of the audio signal. If the output is too low, you may hear steady
noise (hiss) along with the audio.
Note: Do not use the transmitter GAIN control to adjust the loudness of your sound system.
INDICATOR QUICK REFERENCE
CODE - This yellow LED lights up when the transmitter is turned on. This indicates that the receiver is getting an
adequate RF signal (carrier) from the transmitter and that the code from the transmitter matches the preset code
embedded in the receiver.
POWER - This red LED lights up when the receiver is properly connected to a power supply and switched on.
-20 and 0dB - The green LED (marked -20) lights up when an audio signal is present at an adequate level to
produce a good signal to noise ratio. The red LED (marked 0dB) lights up when the audio level is being compressed
in the transmitter. An extremely high audio level may also cause distortion.
REVIEW THE TRANSMITTER INSTRUCTION MANUAL FOR PROPER ADJUSTMENT AND SETUP OF THE
TRANSMITTER MIC LEVEL
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