Lectrosonics R175 - Manual (Page 3)

Compact Receiver
RECEIVER FRONT PANEL
-20 and 0dB LEDs - Indicates the modulation (audio level) of the incoming signal - see transmitter manual for proper
adjustment of transmitter “MIC LEVEL” or “GAIN.” The -20 lamp should flicker, or stay lit as you speak into the micro­
phone. The 0dB lamp is a “peak” indicator showing that the audio level in the transmitter is being limited. It is normal
to see an occasional flicker of the 0dB lamp.
OFF-ON Switch - This slide switch turns the power off and on.
POWER LED - Glows when the switch is in the “ON” position and the power source is good, or when the AC adapter
is properly connected. If this LED is very dim or does not light up when the switch is turned on, check the power
source.
CODE LED - Lights when the transmitter is turned on and the internal code in the transmitter matches this particular
receiver. If the receiver is turned on after the transmitter, the code led will not come on. In this case, it will be neces­
sary to turn the transmitter off and back on to enable the receiver. When the carrier signal from the transmitter is too
weak to produce a clean audio signal the receiver will squelch (no audio) but the code lamp will remain lit.
AUDIO LEVEL - This is an attenuator used to regulate the output level of the receiver. When fully counter-clockwise,
the output of the XLR jack on the rear panel will be fully attenuated. When fully clockwise, the output level will be
similar to a high output electret microphone. Intermediate settings are often necessary to ideally match the level with
other equipment.
OFF ON
AUDIO LEVEL
POWER –20 0dB CODE
LECTROSONICS
MODULATION
DIGITAL CODE
GRN RED RED YEL
RECEIVER REAR PANEL
ANTENNA terminal - A standard BNC connector compatible with the supplied antenna.
12 VDC IN - Connect the power supply here - the CH-12 AC adapter is supplied with the receiver for powering the
unit from a 110V AC source. The receiver may also be powered from an 12 to 18 VDC @ 98mA source using the
correct plug (Switchcraft S-760 , 2.1mm coaxial power plug.) The center pin on the receiver jack is positive (+).
AUDIO OUT (standard XLR jack) - This is the audio output that should connect into your sound system. Being such a
common type of connector, many different adapters and cords are available from local audio or electronics dealers in
your area, or from the factory. The pin configuration is:
Pin 1 - shield
Pin 2 - Audio (+)
Pin 3 - Audio (-)
ANTENNA 12V DC IN
AUDIO OUT
1 2
3
Rio Rancho, NM – USA 3