Lectrosonics UCR401 - Manual (Page 17)

UHF Digital Hybrid Wireless ® Receiver
Rio Rancho, NM 17
Setup and Operating Instructions
Installing/Replacing Batteries
1. As per the instructions engraved on the Battery
Door, use your thumb to lift and open door. Then
rotate it until it is perpendicular with the case.
2. Replace the old batteries, ensuring that you ob-
serve the polarity of the batteries when installnig
the new ones.
3. When finished rotate the door closed. You will feel it
snap into place when it is fully closed.
Adjusting Audio Output
1. Install fresh batteries or connect an external power
source to the UCR401.
2. Unless frequency settings have been previously
assigned, scan for an open frequency and set both
the receiver and transmitter to that frequency. (See
Finding Clear Frequencies.)
3. Connect the audio cable to the receiver’s Audio Out
XLR jack.
4. Set the Power ON/OFF switch to ON and verify that
the LCD panel activates.
5. Adjust the transmitter gain. Refer to your transmitter
manual’s Operating Instructions section for details
on how to adjust the transmitter gain. In general,
adjust the transmitter gain so that the voice peaks
will cause the audio modulation indicators on the
receiver and transmitter to show full modulation on
the loudest peak audio levels. Normal levels should
cause the UCR401’s audio level icon to fluctuate
fully. This will result in the best possible signal to
noise ratio for the system.
Power ON/OFF Switch
AUDIO OUT XLR Jack
Battery Door
Battery polarity is
shown on the side of
the housing
Observe Battery Polarity
“-”
“+”