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LM/IM

LECTROSONICS, INC.

Table of Contents

Introduction..............................................................................................................................................................................................4

Digital Hybrid Technology  .................................................................................................................................................................4

Frequency Agility ...............................................................................................................................................................................4

Wide-Band Deviation .........................................................................................................................................................................4

Long Battery Life ...............................................................................................................................................................................4

Servo Input ........................................................................................................................................................................................5

Input Limiter .......................................................................................................................................................................................5

No Pre-Emphasis/De-Emphasis ........................................................................................................................................................5

Pilot Tone Squelch .............................................................................................................................................................................5

Antenna .............................................................................................................................................................................................5

LMa Block Diagram ...........................................................................................................................................................................5

Controls.and.Functions..........................................................................................................................................................................6

Input Jack ..........................................................................................................................................................................................6

Power ON/OFF Switch ......................................................................................................................................................................6

Power LED ........................................................................................................................................................................................6

Frequency Select Switches ...............................................................................................................................................................6

Modulation LEDs ...............................................................................................................................................................................6

Audio Level ........................................................................................................................................................................................6

Antenna .............................................................................................................................................................................................6

Belt Clip .............................................................................................................................................................................................6

Battery Installation .............................................................................................................................................................................7

Operating.Instructions............................................................................................................................................................................8

Selecting the Compatibility Mode ......................................................................................................................................................8

Attaching a Microphone or Musical Instrument and Adjusting Audio Levels .....................................................................................8

Adjusting the Transmitter Frequency .................................................................................................................................................9

5-Pin.Input.Jack.Wiring.........................................................................................................................................................................10

Microphone RF Bypassing ..............................................................................................................................................................10

Line Level Signals ...........................................................................................................................................................................10

Wiring.Hookups.for.Different.Sources................................................................................................................................................11

Works with Servo Input Only: ..........................................................................................................................................................11

Compatible with SM Series and other Lectrosonics Transmitters: ...................................................................................................11

Wiring Diagram for MI33A Instrument Cable ...................................................................................................................................12

Troubleshooting.....................................................................................................................................................................................13

Specifications.and.Features.................................................................................................................................................................14

Service.and.Repair................................................................................................................................................................................15

Returning Units for Repair ...............................................................................................................................................................15

Summary of Contents for LMa

Page 1: ...ncy Agile UHF Belt Pack Transmitter Featuring Digital Hybrid Wireless Technology US Patent Pending INSTRUCTION MANUAL Rio Rancho NM USA www lectrosonics com Fill in for your records Serial Number Purc...

Page 2: ...evel 6 Antenna 6 Belt Clip 6 Battery Installation 7 Operating Instructions 8 Selecting the Compatibility Mode 8 Attaching a Microphone or Musical Instrument and Adjusting Audio Levels 8 Adjusting the...

Page 3: ...Hybrid Technology All wireless links suffer from channel noise to some degree and all wireless microphone systems seek to minimize the impact of that noise on the desired signal Conventional analog s...

Page 4: ...ined high levels to both keep audio distortion low and preserve short term dynamic changes No Pre Emphasis De Emphasis Because the signal to noise ratio of the hybrid system is so high there is no nee...

Page 5: ...ount of time the transmitter signal is detected See your re ceiver manual to determine if this function is available By using the receiver s battery timer and replacing the transmitter battery before...

Page 6: ...may be possible to track battery status using the Battery Timer function available in a number of Lectrosonics receivers Refer to the associated receiver manual to determine if this function is availa...

Page 7: ...t be set to the operating mode of the matching receiver which is easily done using only the supplied screwdriver and a battery NOTE The unit is supplied from the factory as a 400 series transmitter 1...

Page 8: ...at the receiver Be sure the switch settings between the receiver and transmitter are set exactly the same If for example the 100K switch is one click above or below the desired frequency the receiver...

Page 9: ...rophone transmitter compatibility If the electret microphone is not designed properly for use with wire less transmitters it may be necessary to install a chip capacitor in the mic capsule or connecto...

Page 10: ...lustrated below Lec trosonics makes a number of cables and adapters for other situations such as connecting musical instruments guitars bass guitars etc to the transmitter These cables can be found in...

Page 11: ...The active preamp and low noise wire cable provide a same as wire experience in a wireless environment The 30 inch long cable offers enough cable to com fortably link the instrument to the wireless tr...

Page 12: ...eceiver output level set too low Indicates Proper Audio Modulation 2 Receiver output is disconnected cable is defective or miswired 3 Sound system or recorder input is turned down Distorted Sound 1 Tr...

Page 13: ...ng Line level input 5 0 mV to 6 V before limiting Greater than 15 V with limiting Input impedance Dynamic mic 300 Ohms Electret lavaliere Input is virtual ground with servo adjusted constant current b...

Page 14: ...s Returning Units for Repair For timely service please follow the steps below A DO NOT return equipment to the factory for repair without first contacting us by email or by phone We need to know the n...

Page 15: ...Frequency Agile UHF Belt Pack Transmitter Rio Rancho NM 15...

Page 16: ...ew item Lectrosonics Inc will pay for the cost of returning your equipment to you This warranty applies only to items returned to Lectrosonics Inc or an authorized dealer shipping costs prepaid within...

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