Lectrosonics SMB Series User manual

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Guide

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This guide is intended to assist with

initial setup and operation of your

Lectrosonics product.

For a detailed user manual, down-

load the most current

version at:

www.lectrosonics.com/europe

SMDB/E01, SMDB/E02

Dual battery Transmitter

SMB/E01, SMB/E02

Single battery Transmitter

SMB Series

Digital Hybrid Wireless®

U.S. Patent 7,225,135

16 August 2019

LECTROSONICS, INC.2

SMB Series Transmitters

SMB Series transmitters are ideal

for motion picture and television

production, live theater and other

productions where costuming is

prevalent and the wireless must be

concealed. Despite their tiny size,

the transmitters are feature rich and

well suited to demanding production

environments where outstanding

audio quality and RF performance

are mandatory in the midst of tem-

perature and moisture extremes.

Both models are compatible with

the LectroRM app from New Endian

LLC for hands free setup and ad-

justment. The transmitter can be put

to sleep to conserve battery power

during setup while the transmitter

is buried deep inside costuming,

then awakened for normal operation

when the production begins. Other

features include frequency and

audio level adjustment and control

lockout.

Operating frequencies:

Block 470 470.100 - 495.600 MHz

Block 19 486.400 - 511.900 MHz

Block 20 512.000 - 537.500 MHz

Block 21 537.600 - 563.100 MHz

Block 22 563.200 - 588.700 MHz

Block 23 588.800 - 614.300 MHz

Block 606 606.000 - 631.500 MHz

Block 24 614.400 - 639.900 MHz

Block 25 640.000 - 665.500 MHz

Block 26 665.600 - 691.100 MHz

E02 Additional Frequencies:

Block 27 691.200 - 716.700

Block 28 716.800 - 742.300

Block 29 742.400 - 767.900

Block 30 768.000 - 793.500

Block 31 793.600 - 819.100

Block 32 819.200 - 844.700

Block 33 844.800 - 861.900

(100 kHz Steps)

NOTE: It’s the user’s responsibility to select

the approved frequencies for the region

where the transmitter

is operating.

RF Power output: 50 mW

www.lectrosonics.com 3

Controls and Functions

LCD Screen

Used to display the status of the selected function.

Power LED

Indicates power status and battery strength.

Audio Input Jack

Accommodates most lavaliere and dynamic microphones, and line level

signals.

Modulation LEDs

Provides a visual indication of the audio input signal level - either red or green

to indicate modulation levels.

Audio Button

Used to display the audio level setting (0 dB to 44 dB) on the LCD and used

with the Up and Down arrows to adjust the audio level input from the micro-

phone.

FREQ Button

Used to set the operating frequency and toggle the LCD between the operating

frequency in MHz and a two-digit hexadecimal frequency code.

Up/Down Arrows

Used to adjust the selected function or parameter.

Battery Compartment, Cover Plate and Opener

Used to install or remove battery/batteries.

Battery

Compartment

Retaining

Screw

Battery

Compartment

Cover Plate

Audio

Input Jack

AUDIO Button

LCD

FREQ Button

Modulation

LEDs

PWR LED

UP Arrow

DOWN Arrow

Antenna

Jack

LECTROSONICS, INC.4

Operating Instructions

Power On

1) Ensure that good batteries are installed.

2) Simultaneously press and hold the AUDIO

and FREQ buttons until the Power On Boot

Sequence is initiated (3 seconds).

Power Off

1) Simultaneously press and hold the AUDIO and

FREQ buttons while observing that the word

“Off” appears in the LCD along with a counter.

2) When the counter reaches “0”, the unit turns off.

Note: If the AUDIO and FREQ buttons are released before the end of

the countdown, the unit will not turn off.

Standby Mode

From the “OFF” position, quickly press and release

both the AUDIO and FREQ buttons simultaneously

to enter and exit this mode. Allows the user to verify

or change the transmitter’s operating frequency or

audio input level without transmitting any signals.

Selecting the Compatibility Mode and Power

SMB Series transmitters will work with all E01

Series Digital Hybrid Wireless®receivers in the

native, compandor-free mode and with E01 Series

IFB receivers. Consult your dealer or service center

regarding use with other models and brands.

Note: RF transmission is prevented while

selecting Compatibility Modes. Also, the transmitter exits the

Compatibility Mode screen to Standby Mode. (See Standby Mode, this

section.)

1) Set the receiver’s audio controls to minimum.

2) From a power off condition, press and hold the Up arrow, then press the

AUDIO and FREQ buttons simultaneously.

3) The LCD will display the current Compatibility Mode. Use the Up or

Down arrow button to set the Compatibility Mode to match the corre-

sponding receiver.

Hbr - This is the factory default setting and works with all Lectrosonics

E01 Series Digital Hybrid Wireless® receivers, including the Venue.

IFb - This mode works with all Lectrosonics IFB compatible receivers.

4) The selected compatibility mode will be the current Compatibility Mode

until reset using this procedure. Pressing AUDIO or FREQ exits into the

Standby Mode. To power off from the compatibility mode screen, press

AUDIO and FREQ together.

Initial Power On

Timer Screen

Initial Power Off

Timer Screen

Standby Screen

Digital Hybrid Wireless®

Compatibility Mode

www.lectrosonics.com 5

Setting Transmitter Operating Frequency

The Operating Frequency of the SMB Series

transmitter is displayed either in MHz or as a

two-digit hexadecimal number. Pressing the FREQ

button toggles between the two display modes.

The frequency can be set with the unit in Standby

Mode or while powered up for normal operation.

Note:You must ﬁrst ﬁnd a clear frequency

with the receiver, then set the transmitter to

match.

To change the Operating Frequency of the SMB

Series transmitter:

1) Press the FREQ button to enter this screen.

Note: The default display is in MHz. Pressing the FREQ button again

displays the operating frequency as a two-digit hexadecimal number.

2) While holding the FREQ button, use the Up or Down arrow buttons to

move the operating frequency up or down in 100 kHz increments from

the current setting. Holding the Up or Down arrows will cause rapid scroll-

ing through the frequencies.

Note: The operating frequency displayed on the LCD wraps as it

reaches the upper or lower end of its range. Thus, if you intend to

move the operating frequency from the lower end of the range to the

upper end, it may be faster to do this by using the Down arrow until the

frequency wraps to the upper end

Frequency displayed as

two-digit hexadecimal

number

Frequency displayed

in MHz

LECTROSONICS, INC.6

Adjusting the Low Frequency Roll-off

Repeatedly press the AUDIO button until the LF

roll-off adjustment screen appears. Then press

and hold the AUDIO button while selecting the

desired roll-off frequency with the UP and DOWN

arrows.

The roll-off frequency can be set to 35, 50, 70, 100, 120 and 150 Hz.

Attaching a Microphone and Adjusting Gain

The front panel Modulation LEDs indicate limiter activity. (See chart below.)

Once set, the transmitter’s audio level setting should not be used to control

the volume of your sound system or recorder levels.

This gain adjustment matches the transmitter

gain with the

microphone’s

output level, the user’s voice level and the

microphone’s position. The audio input

level can be set with the unit in Standby

Mode or powered up for normal operation.

Note: Different voices will usually require different settings of the

AUDIO control, so check this adjustment for each person using the

system. If several different people will be using the transmitter and

there is not time to make the adjustment for each individual, adjust it for

the loudest voice.

1) With SMB Series transmitter powered off, insert the microphone plug into

the Audio Input Jack, aligning the pins and ensuring that the connector

locks.

2) Place the SM/E01 in Standby Mode, or if the unit is to be powered up and

adjusted, mute the main sound system prior to powering up the transmit-

ter.

3) Position the microphone in the location where it will be used in actual

operation.

4) Observe the transmitter audio level LEDs while speaking or singing

into the microphone at the same voice level that will be used during the

program. While holding the AUDIO button, press the Up or Down arrow

buttons until the both the -20 and -10 LEDs glow green, with the -20 LED

occasionally ﬂickering red (+0 dB to +10 dB range during peaks).

Note: Setting the audio level too high reduces the dynamic range of the

audio signal. Setting the audio level too low may cause hiss and noise

in the audio.

5) If the unit was set up in Standby Mode, it will be necessary to power up the

SMB Series transmitter and adjust the remaining components of the audio

system prior to use.

Signal Level -20 LED -10 LED

Less than -20 dB Off Off

-20 dB to -10 dB Green Off

-10 dB to +0 dB Green Green

+0 dB to +10 dB Red Green

Greater than +10 dB Red Red

www.lectrosonics.com 7

Locking or Unlocking the Control Panel

The Lock mode protects the transmitter from

accidental changes to its settings.

1) Ensure the transmitter setup is complete.

2) Simultaneously press both the Up and Down

arrow buttons to start the Lock timer. When

the timer reaches zero, “Loc” is displayed and

the controls are locked.

Important: The only ways to unlock a locked transmitter are to

remove the battery or unlock it via remote. It cannot be unlocked or

powered off using the buttons. The remote function will work only if

the transmitter was previously conﬁgured to respond to remote. The

unit will always power up in “unlocked” mode.

We recommend using lithium or high-capacity rechargeable batteries for

longest life.

Note: Standard zinc-carbon batteries marked “heavy-duty” or “long-

lasting” are not adequate.

The battery status circuitry is designed for the voltage drop over the life of

lithium batteries.

To install new batteries:

1) Turn the Battery Cover Plate Opener counterclockwise, open the battery

compartment and remove any old

batteries.

2) Insert the new battery (or batteries) into the housing, positive (+)

terminal ﬁrst.

Important: On dual-battery transmitters, BOTH

batteries go positive (+) terminal ﬁrst.

3) Replace the Battery Cover

Plate and tighten the

Opener.

Battery Installation

Do Not

Cover

Gore-

Tex® Vent

LECTROSONICS, INC.8

Conﬁguring for Remote Function

Some transmitter settings can be changed with the

LectroRM App (available from a third party from

IOS and Android). However, you must ﬁrst conﬁg-

ure the SMB Series transmitter to accept remote

commands:

1) Press and hold the Down Arrow Button then

power on the transmitter by pressing the

Audio and Freq buttons simultaneously.

2) The LCD will display the status, either “rc ON” or “rc OFF.” To change the

setting, press the Up or Down arrow button.

3)Power Off the transmitter by pressing the Audio and Freq buttons simulta-

neously. The RC setting will persist when you Power Up the transmitter

again.

Note: SMB Series transmitters with ﬁrmware version 1.6 and later are

factory set to “rc ON” by default.

Remote Function Screens

Conﬁguring for Power Restore

Power Restore will return your transmitter to set-

tings that were in effect before it was powered

off. This eliminates the need to manually turn the

power back on after a battery has run down all the

way.

1) Press and hold the Down Arrow Button then

power on the transmitter by pressing the

Audio and Freq buttons simultaneously.

2) The LCD will display the status, either “rc ON” or “rc OFF.” Press “AU-

DIO” or “FREQ” key to scroll to the “PbAc 0” setting and use arrow keys

to turn to “PbAc 1” for on.

3)When power is restored the unit will turn on with previous settings.

Power Restore Screens

www.lectrosonics.com 9

Using the Silver Paste

Threads provide

electrical contact

Silver paste is applied to thumbscrew threads

on new units at the factory to improve the

electrical connection from the battery compart-

ment through the housing on any SMB Series

transmitter. This applies to the standard battery

door and the battery eliminator.

The small enclosed vial

contains a tiny amount (25

mg) of silver conductive paste.

A small speck of this paste

will improve the conductivity

between the thumbscrew and

the case.

With improved conductivity (lower resistance) more of the battery voltage can

get to the internal power supplies causing reduced current drain and longer

battery life. Though the amount seems very small, it is enough for years of

use. It is, in fact, 25 times the amount that we use on the thumbscrews at the

factory.

To apply the silver paste, ﬁrst completely remove the cover plate from the SM

housing by backing the thumbscrew completely out of the case. Use a clean,

soft cloth to clean the threads of the thumbscrew.

NOTE: Do NOT use alcohol or a liquid cleaner.

Simply hold the cloth around the threads and turn the thumbscrew. Move to

a new spot on the cloth and do it again. Do this until the cloth remains clean.

Now, clean the threads in the case by using a dry cotton swab (Q-tip) or

equivalent. Again, clean the case threads until a fresh cotton swab comes

away clean.

Open the vial, and transfer a pinhead speck of silver paste to the second

thread from the end of the thumbscrew. A easy way to pickup a speck of paste

is to partially unfold a paper clip and use the end of the wire to acquire a tiny

bit of paste. A toothpick will also work. An amount that covers the end of the

wire is sufﬁcient.

It is not necessary to spread the paste more than a little bit on the thread as

the paste will spread itself every time the thumbscrew is screwed in and out of

the case during battery changes.

Do not apply the paste to any other surfaces.

The cover plate itself can be cleaned with

a clean cloth by rubbing the slightly raised

rings on the plate where it contacts the bat-

tery terminal. All you want to do is to remove

any oils or dirt on the rings. Do not abrade

these surfaces with a harsh material such

as a pencil eraser, emery paper, etc., as this

will remove the conductive nickel plating and

expose the underlying aluminum, which is a

poor contact conductor.

Apply paste to second thread

from end of thumbscrew

LECTROSONICS, INC.10

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