Lectrosonics UCR401 User Manual download pdf (Page 17)

UHF Digital Hybrid Wireless

Receiver

Rio Rancho, NM

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

“-”

“+”

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Lectrosonics UCR401 User Manual Page 17

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