Lectrosonics UM500 User Manual download pdf (Page 6)

UM500

Input Jack

Power ON/OFF Switch

AUDIO LEVEL Control

Modulation LEDs

ANTENNA Jack

Power LED

1.6M 100K

Low Frequency Roll Off

Control

CONTROLS AND FUNCTIONS

Frequency Select Switches

INPUT JACK

The input on the UM500 accommodates virtually every lavaliere, hand-held or shotgun microphone available. Differ-

ent line level signals can also be accommodated. (See Line Level Signals and Transmitter 5-Pin Input Jack Wiring.)

POWER ON/OFF SWITCH

Turns the transmitter on and off. Even when the switch is turned off or on abruptly, the pilot tone muting system

prevents “thumps” or transients from occurring.

POWER ON LED

The Power LED glows green when the battery is good and the transmitter is turned on. The LED will glow yellow/

orange as the battery voltage drops and finally glows red when there are about 30 minutes of operation left (when

using the recommended alkaline battery). The LED blinks red when there are only a few minutes of life left.

Note

A NiMH battery will give little or no warning when it is depleted. If you wish to use NiMH batteries in the UM500, we

recommend trying fully charged batteries in the unit, noting the length of time that the batteries will run the unit and in the

future use somewhat less than that time to determine when the battery needs to be replaced.

A weak battery will sometimes light the Power LED to the “good” green indication immediately after being put in the

unit, but will quickly discharge to the point where the LED will go red or shut down (just like a flashlight with “dead”

batteries). If the lamp fails to light, the battery should be replaced.

AUDIO LEVEL CONTROL

The front panel AUDIO LEVEL Control is used to adjust the incoming audio input level for proper modulation.

AUDIO LEVEL

Used to adjust the audio input level for the proper modulation.

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Lectrosonics UM500 User Manual Page 6