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
Antenna.................................................................................................................................................................................................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
Rio Rancho, NM