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Digital Hybrid Wireless

®

 UHF Belt Pack Transmitter

Rio Rancho, NM

11

Selecting Audio Polarity (Phase)

Audio polarity can be inverted at the transmitter so 

the audio can be mixed with other microphones with-

out comb filtering. The polarity can also be inverted 

at the receiver outputs.

Compat
StepSiz

Phase

Locked

Phase

Pos.
Neg.

Adjusting LCD Backlight

For viewing the LCD in dimly lit conditions, the back-

light can be turned on continuously or set to turn off 

automatically after either 30 seconds or 5 minutes.

Phase
Locked

Backlit

Rf On?

Backlit

On
30 sec
5 min

RF ON/OFF on the Menu

The RF output of the transmitter can be turned off 

and on with a menu item on the LCD to switch from 

the standby mode to the operating mode.

Backlit

Rf On?

BatType
Default

Rf On?

No
Yes

Selecting Battery Type

The voltage drop over the life of different batteries 

varies by type and brand. Be sure to set the correct 

battery type for accurate indications and warnings. 

The menu offers alkaline or lithium types.

Backlit
Rf On?

BatType

Default

BatType

Alk.
Lith.

If you are using rechargeable batteries, it is better to 

use the timer function on the receiver to monitor the 

battery life rather than the indicators on the transmit-

ter. Rechargeable batteries maintain a fairly constant 

voltage across the operating time on each charge 

and stop working abruptly, so you will have little or 

no warning as they reach the end of operation. The 

timer is available on all Lectrosonics Digital Hybrid 

Wireless

®

 receivers.

Restoring Default Settings

This is used to restore the factory settings.

Backlit
Rf On?
BatType

Default

Default
settings

No
Yes

IR (infrared) Sync

The opening on the side panel is an IR port for quick 

setup using a receiver with this capability. The trans-

fer is initiated with a switch on the receiver.

FCCID:DBZLMBC1

Lectrosonics, Inc.

Made in U.S.A.

IC: 8024A-LMBC1

614.4 - 691.1 MHz

Model: LMBC1

S/N XXXXX

IR Port

The receiver can transfer the settings for Frequency, 

Step Size and Compatibility mode to the transmitter 

via the IR ports. When the settings are successfully 

transferred, 

OK

 will appear on the transmitter LCD. 

If a mismatch exists, an error message will appear 

on the transmitter LCD indicating the nature of the 

problem.

IR Sync

  BLOCK
Mismatch

IR Sync

 COMPAT
Mismatch

IR Sync

    OK

Summary of Contents for LMb

Page 1: ...mode to match the receiver see page 9 3 Connect signal source and adjust input gain for optimum modulation level see page 9 4 Set StepSize and frequency to match receiver see page 10 Also see receive...

Page 2: ...ne Cable Terminationfor Non Lectrosonics Microphones 13 Input Jack Wiring for Different Sources 14 Microphone RF Bypassing 15 Line Level Signals 15 Wiring Diagram for MI39A Instrument Cable 15 Supplie...

Page 3: ...n of an analog compandor but a technique which can be accomplished only in the digital domain Since the RF link between transmitter and receiver is FM channel noise will increase gradually with in cre...

Page 4: ...al release envelope makes the limiter acoustically transparent while maintaining low distortion It can be thought of as two limiters in series connected as a fast attack and release limiter followed b...

Page 5: ...unction avail able in Lectrosonics Digital Hybrid Wireless receiv ers Push outward on the Battery Compartment Door and lift it to open Insert the batteries according to the markings inside the battery...

Page 6: ...erating time to prevent interruptions caused by dead batteries Many Lectrosonics receiv ers have a timer function to keep track of battery runtime The Power Function LED on the top panel will mirror t...

Page 7: ...in the upper right corner may display one or both arrows depending upon what adjustment can be made If the changes are locked a small padlock symbol will appear Gain Freq ProgSw Compat 40 20 0 Gain 25...

Page 8: ...40 20 0 b 19 MUTE 1 4 51 Fraction 1 4 025 MHz 1 2 050 MHz Changing the step size never changes the frequency It only changes the way the user interface works If the frequency is set to a fractional in...

Page 9: ...irst turns red The limiter can cleanly handle peaks up to 30 dB above this point It is best to go through the following procedure with the transmitter in the standby mode so that no audio will enter t...

Page 10: ...next 100 kHz channel 100 kHz Mode Freq b 19 494 525 511 4 1 band steps 1 6 MHz steps 10 MHz steps 100 kHz steps 25 kHz Mode Helpful Features on Receivers To aid in finding clear frequencies several Le...

Page 11: ...h If you are using rechargeable batteries it is better to use the timer function on the receiver to monitor the battery life rather than the indicators on the transmit ter Rechargeable batteries maint...

Page 12: ...n 4 to Pin 2 4 V PIN 5 Line level input for tape decks mixer outputs musi cal instruments etc Installing the Connector 1 If necessary remove the old connector from the microphone cable 2 Slide the dus...

Page 13: ...shown here Microphone Cable Termination for Non Lectrosonics Microphones TA5F Connector Assembly Mic Cord Stripping Instructions 1 2 3 4 5 VIEW FROM SOLDER SIDE OF PINS 0 3 0 15 Crimping to Shield and...

Page 14: ...om 2k to 4k ohms Fig 4 Fig 11 4 VOLT POSITIVE BIAS 3 WIRE ELECTRET NOTE This servo bias wiring is not compatible with earlier versions of Lectrosonics transmitters Check with the factory to confirm wh...

Page 15: ...ease specify the part number for the desired lead style Leaded capacitors P N 15117 Leadless capacitors P N SCC330P All Lectrosonics lavaliere mics are already bypassed and do not need any additional...

Page 16: ...mnidirectional MI33PRA Instrument cable passive type for use with very high output pickups right angle 1 4 plug MI33PST Instrument cable passive type for use with very high output pickups straight 1 4...

Page 17: ...roper Audio Modulation 2 Receiver output is disconnected cable is defective or miswired 3 Sound system or recorder input is turned down Distorted Sound 1 Transmitter gain audio level is too high Check...

Page 18: ...compliance with FCC RF exposure guidelines Contact Lectrosonics if you have any questions or need more information about RF exposure using this product This device complies with FCC radiation exposure...

Page 19: ...or by phone We need to know the nature of the problem the model number and the serial number of the equipment We also need a phone number where you can be reached 8 A M to 4 P M U S Mountain Standard...

Page 20: ...LMb LMb E01 LMb E06 Lmb X LECTROSONICS INC 20...

Page 21: ...Digital Hybrid Wireless UHF Belt Pack Transmitter Rio Rancho NM 21...

Page 22: ...LMb LMb E01 LMb E06 Lmb X LECTROSONICS INC 22...

Page 23: ...Digital Hybrid Wireless UHF Belt Pack Transmitter Rio Rancho NM 23...

Page 24: ...sonics 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 one year from...

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