Lectrosonics UM400a User Manual

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UM400a
Frequency Synthesized 100 mW UHF Belt-Pack Transmitter
INSTRUCTION MANUAL
Rio Rancho, NM, USA
www.lectrosonics.com
Fill in for your records:
Serial Number:
Purchase Date:
Featuring
Digital Hybrid Wireless
Technology
U.S. Patent 7,225,235
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Summary of Contents

Page 1 - Technology

UM400aFrequency Synthesized 100 mW UHF Belt-Pack TransmitterINSTRUCTION MANUALRio Rancho, NM, USAwww.lectrosonics.comFill in for your records: Serial

Page 2

UM400aLECTROSONICS, INC.10The wiring diagrams included in this section represent the basic wiring necessary for the most common types of microphones a

Page 3 - Table of Contents

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM11NOTE: This termination is intended for UHF transmitters only. VHF transmitters with 5-p

Page 4 - General Technical Description

UM400aLECTROSONICS, INC.12Microphone RF BypassingWhen used on a wireless transmitter, the microphone element is in the proximity of the RF coming from

Page 5

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM132 VOLT POSITIVE BIAS 2-WIRE ELECTRETSimplified wiring for microphones such as Countryma

Page 6 - Controls and Functions

UM400aLECTROSONICS, INC.14ItemReplacement wire belt clipReplacement whip antennaReplacement Parts and AccessoriesUHF Transmitter Antenna Specifications

Page 7 - Belt Clip

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM15Before going through the following chart, be sure that you have a good battery in the t

Page 8 - Operating Instructions

UM400aLECTROSONICS, INC.16Operating frequencies: Block 470: 470.100 - 495.600 Block 19: 486.400 - 511.900 Block 20: 512.000 - 537.500

Page 9 - Operating Notes

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM17Service and RepairIf your system malfunctions, you should attempt to correct or isolate

Page 10 - 5-Pin Input Jack Wiring

UM400aLECTROSONICS, INC.18

Page 11 - Microphone Cable Termination

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM19

Page 12 - Line Level Signals

UM400aLECTROSONICS, INC.2

Page 13 - Rio Rancho, NM

UM400aLECTROSONICS, INC.20UM400aman.indd26 June 2013581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com(505) 892-4501 • (800)

Page 14 - LECTROSONICS, INC

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM3© Copyright 2008 Lectrosonics. IncTable of ContentsGeneral Technical Description ...

Page 15 - Troubleshooting

UM400aLECTROSONICS, INC.4IntroductionThe UM400a transmitter combines 100 mW of RF output with +/-75 kHz wide deviation for extended operating range an

Page 16 - Specifications and Features

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM5Low Frequency Roll-OffThe low frequency roll-off at the 3 dB down point is vari-able fro

Page 17 - Service and Repair

UM400aLECTROSONICS, INC.6Input JackThe input on the UM400a accommodates virtually every lavaliere, hand-held or shotgun microphone available. Differen

Page 18

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM7Audio Level ControlThe front panel AUDIO LEVEL Control is used to adjust the input level

Page 19

UM400aLECTROSONICS, INC.8To open the battery compartment, press outward on the cover door in the direction of the arrow as shown in the illustration.

Page 20 - LIMITED ONE YEAR WARRANTY

Frequency Synthesized UHF Belt-Pack TransmitterRio Rancho, NM9Attaching a Microphone and Adjusting Gain1) Ensure the battery is in good condition.2)

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