Lectrosonics UM400 User Manual

Page 5

Frequency-Agile UHF Belt-Pack Transmitter

Table of Contents

General Technical Description ..............................................................................................................................................................6

Introduction ...........................................................................................................................................................................................6

Digital Hybrid Technology .....................................................................................................................................................................6

UM400 Block Diagram ..........................................................................................................................................................................6

No Pre-Emphasis/De-Emphasis ...........................................................................................................................................................7

Pilot Tone Squelch ................................................................................................................................................................................7

Input Limiter ..........................................................................................................................................................................................7

Wide-Band Deviation ............................................................................................................................................................................7

Long Battery life....................................................................................................................................................................................7

Frequency Agility...................................................................................................................................................................................7

Antenna.................................................................................................................................................................................................7

Controls and Functions .........................................................................................................................................................................8

Input Jack..............................................................................................................................................................................................8

Power ON/OFF Switch..........................................................................................................................................................................8

Power On LED ......................................................................................................................................................................................8

Audio Level Control...............................................................................................................................................................................8

Audio Level ...........................................................................................................................................................................................8

Modulation LEDs...................................................................................................................................................................................9

Frequency Select Switches...................................................................................................................................................................9

Adjustable Low Frequency Roll-Off.......................................................................................................................................................9

Belt Clip.................................................................................................................................................................................................9

Battery Installation ...............................................................................................................................................................................10

Operating Instructions.........................................................................................................................................................................10

Selecting the Compatibility Mode........................................................................................................................................................10

Attaching a Microphone and Adjusting Gain.......................................................................................................................................11

Operating Notes..................................................................................................................................................................................11

Adjusting the Transmitter Frequency...................................................................................................................................................11

Microphone Cord Termination.............................................................................................................................................................12

TA5F Connector Assembly .................................................................................................................................................................12

Mic Cord Stripping Instructions...........................................................................................................................................................12

5-Pin Input Jack Wiring ........................................................................................................................................................................13

Input Jack Wiring Diagram ..................................................................................................................................................................13

RF Bypassing......................................................................................................................................................................................13

Line Level Signals...............................................................................................................................................................................14

Wiring Hookups for Different Sources ...............................................................................................................................................15

Replacement Parts and Accessories..................................................................................................................................................16

UHF Transmitter Antenna Specifications ............................................................................................................................................16

Troubleshooting....................................................................................................................................................................................17

Specifications and Features................................................................................................................................................................18

Service and Repair ...............................................................................................................................................................................19

Returning Units for Repair ..................................................................................................................................................................19

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