LECTROSONICS LMb Digital Hybrid Wireless UHF Belt Pack Transmitter Instruction Manual
- June 6, 2024
- LECTROSONICS
Table of Contents
LMb Digital Hybrid Wireless UHF Belt Pack Transmitter
INSTRUCTION MANUAL
LMb
Digital Hybrid Wireless® UHF Belt Pack Transmitter
LMb, LMb/E01, LMb/E06, LMb/X
Featuring
Digital Hybrid Wireless® Technology
US Patent 7,225,135
Fill in for your records: Serial Number: Purchase Date:
Quick Start Steps
- Install good batteries and turn power on (see pages 5 and 6).
- Set compatibility mode to match the receiver (see page 9).
- Connect signal source and adjust input gain for optimum modulation level (see page 9).
- Set StepSize and frequency to match receiver (see page 10). Also see receiver manual for scanning procedure.
- Turn on the receiver and verify RF and audio signals are present (see
receiver manual).
WARNING: Moisture, including talent’s sweat, will damage the transmitter. Wrap the LMb in a plastic baggie or other protection to avoid damage or see LMCVR.
Rio Rancho, NM, USA www.lectrosonics.com
LMb, LMb/E01, LMb/E06, Lmb/X
Table of Contents
Quick Start Steps…………………………………………………………………………………………………………………………………………………………….1
Introduction………………………………………………………………………………………………………………………………………………………………………3
About Digital Hybrid Wireless
……………………………………………………………………………………………………………………………………………3 Frequency
Agility……………………………………………………………………………………………………………………………………………………………..3 Servo
Bias Input and Wiring ……………………………………………………………………………………………………………………………………………..3
DSP-controlled Input Limiter
……………………………………………………………………………………………………………………………………………..3 LMb Block
Diagram………………………………………………………………………………………………………………………………………………………….4 No Pre-
Emphasis/De-Emphasis ………………………………………………………………………………………………………………………………………..4
Pilot Tone Squelch
…………………………………………………………………………………………………………………………………………………………..4 Battery
Installation ……………………………………………………………………………………………………………………………………………………………5 Belt
Clips ………………………………………………………………………………………………………………………………………………………………………….5
Operating Instructions
………………………………………………………………………………………………………………………………………………………6 Battery Status LED
Indicators……………………………………………………………………………………………………………………………………………6 Powering On
in Operating Mode………………………………………………………………………………………………………………………………………..6
Powering On in Standby Mode
………………………………………………………………………………………………………………………………………….7 Powering Off
…………………………………………………………………………………………………………………………………………………………………..7 Navigating
Menus ……………………………………………………………………………………………………………………………………………………………7
Locking/Unlocking Changes to
Settings………………………………………………………………………………………………………………………………7 Power Menu
……………………………………………………………………………………………………………………………………………………………………7 Selecting
Programmable Switch Functions………………………………………………………………………………………………………………………….8
Main Window Indicators
……………………………………………………………………………………………………………………………………………………8 Selecting the
Compatibility (Compat) Mode…………………………………………………………………………………………………………………………9
Connecting the Signal Source
…………………………………………………………………………………………………………………………………………..9 Adjusting the Input
Gain……………………………………………………………………………………………………………………………………………………9 Selecting Step
Size………………………………………………………………………………………………………………………………………………………….9 Selecting
Frequency ………………………………………………………………………………………………………………………………………………………10
Selecting Frequency Using Two
Buttons……………………………………………………………………………………………………………………………10 Helpful Features on
Receivers…………………………………………………………………………………………………………………………………………10 About
Overlapping Frequency Bands
……………………………………………………………………………………………………………………………….10 Selecting Audio Polarity
(Phase)………………………………………………………………………………………………………………………………………11 Adjusting LCD
Backlight …………………………………………………………………………………………………………………………………………………11 RF ON/OFF
on the Menu………………………………………………………………………………………………………………………………………………..11
Selecting Battery Type
……………………………………………………………………………………………………………………………………………………11 Restoring Default
Settings ………………………………………………………………………………………………………………………………………………11 IR
(infrared) Sync…………………………………………………………………………………………………………………………………………………………..11
5-Pin Input Jack Wiring
……………………………………………………………………………………………………………………………………………………12 Microphone 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 Supplied and Optional
Accessories …………………………………………………………………………………………………………………………………16
Troubleshooting………………………………………………………………………………………………………………………………………………………………17
Specifications and
Features…………………………………………………………………………………………………………………………………………….18 Service and
Repair ………………………………………………………………………………………………………………………………………………………….19 Returning
Units for Repair ………………………………………………………………………………………………………………………………………………19
Consumer Alert for US Users – FCC Order DA 10-92
Most users do not need a license to operate this wireless microphone system.
Nevertheless, operating this microphone system without a license is subject to
certain restrictions: the system may not cause harmful interference; it must
operate at a low power level (not in excess of 50 milliwatts); and it has no
protection from interference received from any other device. Purchasers should
also be aware that the FCC is currently evaluating use of wireless microphone
systems, and these rules are subject to change. For more information, call the
FCC at 1-888- CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless
microphone website at www.fcc.gov/cgb/wirelessmicrophones. To operate wireless
microphone systems at power greater than 50mW, you must qualify as a Part 74
user and be licensed. If you qualify and wish to apply for a license go to:
http://www.fcc.gov/Forms/Form601/601.html
2
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Introduction
The design of the LMb transmitter delivers the advanced technology and
features of Digital Hybrid Wireless® in a Lectrosonics belt-pack transmitter
at a modest cost. Digital Hybrid Wireless® combines a 24-bit digital audio
chain with an analog FM radio link to eliminate a compandor and its artifacts,
yet preserve the extended operating range and noise rejection of the finest
analog wireless systems. Along with providing peerless audio quality with wide
frequency response and dynamic range in Nu Hybrid mode, the technology used in
the LMb includes DSP “compatibility modes” to allow the unit to be used with a
variety of analog receivers by emulating the compandors found in earlier
Lectrosonics analog wireless and IFB receivers, and certain receivers from
other manufacturers (contact the factory for details).
The housing is a rugged, machined aluminum package with removable, stainless
steel wire belt clip. The input jack is a standard Lectrosonics 5-pin type for
use with electret lavaliere mics, dynamic mics, musical instrument pickups and
line level signals. The LEDs on the top panel allow quick and accurate level
settings without having to view the receiver. The unit is powered by two AA
batteries. The antenna is a super-rugged, permanently attached 1/4 wavelength
design made of flexible galvanized steel cable.
The switching power supplies in the LMb provide constant voltages to the
transmitter circuits from the beginning to the end of battery life, with
output power remaining constant over the life of the battery. The input
amplifier uses an ultra low noise op amp for quiet operation. Input gain is
adjustable over a 44 dB range, with a DSP -controlled dual envelope input
limiter to cleanly handle signal peaks over 30 dB above full modulation.
About Digital Hybrid Wireless
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 systems use compandors for enhanced dynamic range,
at the cost of subtle artifacts (known as “pumping” and “breathing”). Wholly
digital systems defeat the noise by sending the audio information in digital
form, at the cost of some combination of power, bandwidth, operating range and
resistance to interference.
The Lectrosonics Digital Hybrid Wireless® system overcomes channel noise in a
dramatically new way, digitally encoding the audio in the transmitter and
decoding it in the receiver, yet still sending the encoded information via an
analog FM wireless link. This proprietary algorithm is not a digital
implementation 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 increased operating range and weak signal conditions,
however, the Digital Hybrid Wireles system handles
this situation elegantly with rarely audible audio artifacts as the receiver
approaches its squelch threshold. In contrast, a purely digital system tends
to drop the audio suddenly during brief dropouts and weak signal conditions.
The Digital Hybrid Wireless® system simply encodes the signal to use a noisy
channel as efficiently and robustly as possible, yielding audio performance
that rivals that of purely digital systems, without the power, noise and
bandwidth problems inherent in digital transmission. Because it uses an analog
FM link, Digital Hybrid Wireless® enjoys all the benefits of conventional FM
wireless systems, such as excellent range, efficient use of RF spectrum, and
long battery life.
Frequency Agility
Frequency selection is provided in 100 kHz or 25 kHz steps. Frequencies are
displayed on the LCD in MHz and in a hex code used with earlier Lectrosonics
equipment.
Wide-Band Deviation
Deviation has a direct effect on the dynamic range and signal to noise ratio
of an FM system. The greater the deviation, the wider the dynamic range and
the better the signal to noise ratio. In the Digital Hybrid Wireless® mode,
the system operates with a maximum of +/-75 kHz of deviation. The resulting
180 kHz of occupied bandwidth just fits inside the government specified
spectral mask of 200 kHz. In order to make this possible, an advanced, DSP-
controlled limiter is used to prevent signal peaks from exceeding the maximum
allowed bandwidth, but not cause distortion.
The result of all this is that the audio quality is outstanding, rivaling a
hard-wired microphone. The system delivers a very wide dynamic range, and can
handle loud signal peaks without distortion.
Servo Bias Input and Wiring
The LMb input preamp is a unique design that delivers audible improvements
over conventional transmitter inputs. The transmitters are easier to use and
much harder to overload. It is not necessary to introduce pads on some mics to
prevent overload of the input stage, divide the bias voltage down for some low
voltage mics, or reduce the limiter range at minimum gain settings.
Two different microphone wiring schemes are available to simplify and
standardize the configuration. Simplified 2-wire and 3-wire configurations
provide several arrangements designed for use only with servo bias inputs to
take full advantage of the preamp circuitry. Other wiring schemes are
compatible with Servo Bias and conventional inputs.
A line level input wiring provides an extended frequency response with an LF
roll-off at 35 Hz for use with instruments and line level signal sources.
Rio Rancho, NM
3
LMb, LMb/E01, LMb/E06, Lmb/X
DSP-controlled Input Limiter
The transmitter employs a digitally-controlled analog audio limiter prior to
the analog-to-digital converter. The limiter has a range greater than 30 dB
for excellent overload protection. A dual 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 by a slow attack and release limiter. The limiter recovers quickly
from brief transients, so that its action is hidden from the listener, but
recovers slowly from sustained high levels to keep audio distortion low and
preserve short term dynamic changes in the audio.
No Pre-Emphasis/De-Emphasis
Because the signal to noise ratio of the Digital Hybrid Wireless® system is so
high, there is no need for conventional pre-emphasis (HF boost) in the
transmitter and de-emphasis (HF roll off) in the receiver. Thus, the potential
distortion problems associated with pre-emphasis and de-emphasis are
eliminated.
Pilot Tone Squelch
The squelch system in a receiver is a method of muting the audio when the RF
signal conditions are too poor to produce usable audio. While not all squelch
systems work the same way, the goal is always the same: to discard noise and
unusable audio.
The Digital Hybrid Wireless system employs a DSPgenerated supersonic tone
(pilot tone), using it as a kind of signature, so the receiver can mute even
strong signals that aren’t from the appropriate transmitter. The pilot tone
also helps to ensure that the receiver is quiet when the transmitter is turned
on and off.
256 different pilot tones provide reliable operation in multi-channel wireless
systems. A different tone is generated every 100 kHz across the tuning range
of the system, so that a tone is not repeated until it is 25.6 MHz above or
below the previous one.
LMb Block Diagram
+5V
Input Jack
Servo Bias Bias Voltage
Supply
0, 2 or 4V
Input Preamp
HI/Lo Pass Filter
AUDIO
A-D Converter
Gain
I2S
Adj
Shunt Limiter
Limiter Control
D-A Converter
I2S
DSP Clock
Oscillator
Bicolor Modulation
LEDs
Micro Clock
Microprocessor Keypad
Encoded Audio and Pilot Tone
Buffer Amp and Filter
(2) AA Batteries
Switching Power Supply
Tricolor Power LED
AUDIO
LMb Transmitter
Oscillator
PLL Ref
Phase Locked Loop
Voltage Controlled Oscillator
Control
Driver
Final Amplifier
Filters (3)
4
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Battery Installation
The transmitter is powered by two AA batteries. We recommend using alkaline,
lithium, or rechargeable batteries for longest life. Standard zinc-carbon
batteries marked “heavy-duty” or “long-lasting” are not adequate.
WARNING: Risk of explosion if the battery is replaced by an incorrect type.
The battery status circuitry compensates for the difference in voltage drop
between alkaline and lithium batteries across their usable life, so it’s
important to select the correct battery type in the menu.
Because rechargeable batteries run down quite abruptly, using the Power LED to
verify battery status will not be reliable. However, it is possible to track
battery status using the Battery Timer function available in Lectrosonics
Digital Hybrid Wireless® receivers.
Push outward on the Battery Compartment Door and lift it to open.
The battery contacts can be cleaned with alcohol and a cotton swab, or a clean pencil eraser. Be sure not to leave any remnants of the cotton swab or eraser crumbs inside the compartment.
Series connection plate
Contact springs
Belt Clips
The wire belt clip may be removed by pulling the ends out of the holes in the
sides of the case. Use pliers to grasp the wire and avoid scratching the
surface of the housing. Pliers also help when installing the clip.
An optional spring-loaded, hinged belt clip (model number BCSLEBN) is also
available. This clip is attached by removing the plastic hole cap on the back
of the housing and mounting the clip with the supplied screw.
Insert the batteries according to the markings inside the battery compartment.
If the batteries are inserted incorrectly, the door will close but the unit will not operate.
Rio Rancho, NM
5
LMb, LMb/E01, LMb/E06, Lmb/X
Operating Instructions
IR Sync Port
FCC ID: DBZLMBA1A 470.100 – 537.575 MHz
IR
Lectrosonics, Inc. S/N XXXXX
Made in U.S.A. Model: LMBA1
IC: 8024A-LMBA1
Battery Status LED RF Indicator Battery icon
- The DOWN arrow will turn the LEDS off and the UP
arrow will turn them on when the Main Window (no menu)
is displayed.
IR PORT
5A
623.400
-40
-20
0
Input Jack
Menu navigation buttons*
Programmable Switch
-10 BAT
-20
Power/Function LED
Modulation LEDs
-10 BAT
-20
Slide door outward to open battery door and access batteries
Belt clip mounting hole
Power Button
Move switch toward the white dot to turn it on
Battery Status LED Indicators
Alkaline, lithium or rechargeable batteries can be used to power the
transmitter. The type of batteries in use are selectable in a menu on the LCD.
When alkaline or lithium batteries are being used, the LED labeled BATT on the
keypad glows green when the batteries are good. The color changes to red when
the they are nearing the end of life. When the LED begins to blink red, there
will be only a few minutes remaining.
The exact point at which the LEDs turn red will vary with battery brand and
condition, temperature and power consumption. The LEDs are intended to simply
catch your attention, not to be an exact indicator of remaining time.
A weak battery will sometimes cause the LEDs to glow green immediately after
the transmitter is turned on, but it will soon discharge to the point where
the LED will turn red or the unit will turn off completely.
Rechargeable batteries give little or no warning when they are depleted. If
you wish to use these batteries in the transmitter, you will need to manually
keep track of the operating time to prevent interruptions caused by dead
batteries. Many Lectrosonics receivers have a timer function to keep track of
battery runtime.
The Power/Function LED on the top panel will mirror the keypad LED unless the
programmable switch is set to the Mute or Talkback mode, and the switch is
turned on.
NOTE: The battery timer feature in many Lectrosonics receivers is very helpful
in measuring battery runtime when using rechargeable batteries. Refer to the
receiver instructions for details on using the timer.
Powering On in Operating Mode
Press and hold the Power Button for several seconds until a counter on the LCD
progresses from 1 through 3, followed by a display of the model, firmware
version, frequency band and compatibility mode.
Hold for Rf On …3
LMB V6.00 Band A1 Nu Hybrid
b 19
51
494.500
-40
-20
0
When you release the button, the unit will be operational with the RF output turned on and the Main Window displayed. Only the second and third screens will appear when the programmable function switch is used to turn on the power.
6
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Powering On in Standby Mode
A brief press of the Power Button , releasing it before
the counter has reached 3, will turn the unit on with the
RF output turned off. In this Standby Mode, the menus
can be browsed to make settings and adjustments with-
out the risk of interfering with other wireless systems
nearby.
RF indicator blinks
Hold for Rf On …1
Release Power Button before
the counter reaches 3 to enter standby
mode
b 19
51
494.500
-40
-20
0
After settings and adjustments are made, press the power button again to turn the unit off.
NOTE: Also see the section entitled Power Menu for the AutoOn feature.
Powering Off
Powering Off . . .
From any screen, power can be turned off by selecting Pwr Off in the power menu or holding the Power
Button in and waiting for the
countdown, EXCEPT if the top panel
1
switch is configured for this function.
If the power button is released, or
the top panel switch is turned back on again before the
countdown is completed, the unit will remain turned on
and the LCD will return to the same screen or menu
that was displayed previously.
NOTE: When the top panel switch is configured as a power switch, that is the only way to turn the unit off.
Navigating Menus
The LCD and keypad interface make it easy to browse the menus and make the
selections for the setup the user needs. When the unit is powered up in either
the operating or the standby mode, press MENU/SEL on the keypad to enter a
menu structure on the LCD. Use the and arrow buttons to select the menu item.
Then press the MENU/SEL button to enter the menu.
Gain Freq. ProgSw Compat
Gain 25
-40
-20
0
The prompt 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.
Locking/Unlocking Changes to Settings
Changes to the settings can be locked.
StepSiz Phase Locked Backlit
Locked?
No Ye s
Gain 25
-40
-20
0
A small padlock symbol will appear on adjustment screens when changes have been locked.
When changes are locked, several controls and actions can still be used:
· Settings can still be unlocked
· Menus can still be browsed
· Programmable switch still works
· Power can still be turned off by using the power menu or removing the
batteries.
Power Menu
Pressing the power button when the unit is turned on will display a menu with
several options:
· Resume – returns to the previous mode and screen
· Pwr Off – turns the unit off irrevocably
· Rf On? – enters a screen to enable the operating or standby modes
· AutoOn? – allows the unit to automatically turn back on after a power
failure or when fresh batteries are installed (works in the operating mode
only)
· Backlit – adjusts the duration of the LCD back light to 30 seconds or 5
minutes, or to remain on
· LED Off – turns the LEDs on (Normal) or off (Dark)
· About – displays the installed firmware version.
Rio Rancho, NM
7
LMb, LMb/E01, LMb/E06, Lmb/X
Selecting Programmable Switch Functions
The programmable switch on the top panel can be configured using the menu to
provide several functions:
· Power – turns the power on and off
· Mute – mutes the audio when switched on
· TalkBk (talkback) – redirects the audio to a different output channel on the
receiver (with receivers that offer this function)
· (none) – disables the switch
Gain Freq. ProgSw Compat
ProgSw Power
ProgSw Mute
ProgSw Ta l k B k
ProgSw (none)
Use the and arrow buttons to select the desired
function or disable the switch
NOTE: The programmable switch will continue to operate whether or not keypad changes are locked.
Main Window Indicators
The Main Window displays the band number, Standby or Operating mode, operating frequency, audio level, battery status and programmable switch function. When the frequency step size is set at 100 kHz, the LCD will look like the following.
Band number
Operating mode
Frequency (hex setting)
Frequency (MHz)
b 19
51 MUTE
494.500
-40
-20
0
Battery status
Programmable switch function
Audio level
When the frequency step size is set to 25 kHz, the hex number is smaller and
may include a fraction.
Fraction
1/4 = .025 MHz 1/2 = .050 MHz 3/4 = .075 MHz
b 19 51 1
4 MUTE
494.525
-40
-20
0
Note that the frequency has increased by 25 kHz from the upper
example.
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 increment
between even 100 kHz steps and the step size is changed to 100 kHz, the hex
code will be replaced by two asterisks on the main screen and the frequency
screen.
Frequency set to fractional 25 kHz step, but step size changed to 100 kHz.
b 19
MUTE
494.525
-40
-20
0
Freq. b 19
494.525
If the programmable switch function is set for Mute, the Main Window will indicate that the function is enabled.
b 19
51 MUTE
494.500
Mute function enabled but not active
-40
-20
0
When the switch is turned on, the mute icon appearance will change, the word MUTE will blink at the bottom of the display, and the power/function LED will blink blue.
-10 BAT
-20
b 19 51 MUTE 494.500 <MUTE>
Main Window will blink the word MUTE when
the audio is muted
Top Panel LED will blink blue when the
audio is muted
If the programmable switch function is set for Talkback, the Main Window will indicate that the function is enabled but not active.
b 19
51 TB
494.500
-40
-20
0
Talkback function is enabled but not active
When the programmable switch is turned on, the talkback icon appearance will change and the power/function LED will glow blue.
-10 BAT
-20
b 19
51 TB
494.500
-40
-20
0
The TB icon will change when
Talkback is active
Top Panel LED will glow blue when Talkback is active
8
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Selecting the Compatibility (Compat) Mode
When used with a Lectrosonics Digital Hybrid Wireless® receiver, the best
audio quality will be achieved with the system set to the Nu Hybrid
compatibility mode.
Gain Freq. ProgSw Compat
Compat Hybrid
Use the UP and DOWN arrows to select the desired mode, then press the BACK button twice to return to the Main Window.
Compatibility modes are as follows. See Specifications for the modes that correspond to your specific model:
Receiver Models
LCD menu item
· Mode 3:*
Mode 3
· Nu Hybrid:
Nu Hybrid
· IFB Series:
IFB Mode
Mode 3* works with certain non-Lectrosonics models.
Nu Hybrid works with all Lectrosonics Digital Hybrid receivers. The receiver must also be set to the Nu Hybrid compatibility mode.
IFB Series works with Lectrosonics IFB R1/R1a analog receivers.
NOTE: If your Lectrosonics receiver does not have Nu Hybrid mode, set the receiver to Euro Digital Hybrid Wireless® (EU Dig. Hybrid).
- Contact the factory for details of this mode
Connecting the Signal Source
Microphones, line level audio sources and instruments can be used with the
transmitter. Refer to the section entitled Wiring Hookups for Different
Sources for details on the correct wiring for microphones to take full
advantage of the Servo Bias circuitry.
Adjusting the Input Gain
The two bicolor Modulation LEDs on the control panel and keypad provide a visual indication of the audio signal level entering the transmitter. The LEDs will glow either red or green to indicate modulation levels as shown in the following table.
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
NOTE: Full modulation is achieved at 0 dB, when the “-20″ LED first 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 the sound system or recorder during
adjustment.
- With fresh batteries in the transmitter, power the unit on in the standby mode (see previous section Powering On in Standby Mode).
- Navigate to the Gain setup screen.
Gain Freq. ProgSw Compat
Gain 25
-40
-20
0
- Prepare the signal source. Position a microphone the way it will be used in actual operation and have the user speak or sing at the loudest level that occur during use, or set the output level of the instrument or audio device to the maximum level that will be used.
- Use the and arrow buttons to adjust the gain until the 10 dB glows green and the 20 dB LED starts to flicker red during the loudest peaks in the audio.
- Once the audio gain has been set, the signal can be sent through the sound system for overall level adjustments, monitor settings, etc.
- If the audio output level of the receiver is too high or low, use only the
controls on the receiver to make adjustments. Always leave the transmitter
gain adjustment set according to these instructions, and do not change it to
adjust the audio output level of the receiver.
Selecting Step Size
This menu item allows frequencies to be selected in either 100 kHz or 25 kHz increments.
Compat StepSize Phase Locked
StepSiz
StepSiz
100 kHz 25 kHz
100 kHz 25 kHz
If the desired frequency ends in .025, .050 or .075 MHz, the 25 kHz step size
must be selected.
Normally, the receiver is used to find a clear operating frequency. All
Lectrosonics Digital Hybrid Wireless® receivers provide a scanning function to
quickly and easily find prospective frequencies with little or no RF
interference. In other cases, a frequency may be specified by officials at a
large event such as the Olympics or a major league ball game. Once the
frequency is determined, set the transmitter to match the associated receiver.
Rio Rancho, NM
9
LMb, LMb/E01, LMb/E06, Lmb/X
Selecting Frequency
The setup screen for frequency selection offers several ways to browse the
available frequencies.
Gain Freq. ProgSw Compat
Freq. b 19
51
494.500
Press MENU/ SEL to select
one of four fields to make adjustments
Each field will step through the available frequencies in a different increment. The increments are also different in the 25 kHz mode from the 100 kHz mode.
Freq. b 19 51
494.500
Freq. b 19 51
494.500
These two fields step in 25 kHz increments when the step size is 25 kHz and
100 kHz increments when
the step size is 100 kHz.
Freq. b 19
51
494.500
These two fields always step in the same increments
1 band steps
1 MHz steps
Freq. b 19
51
494.500
A fraction will appear next to the hex code in the setup screen and in the main window when the frequency ends in .025, .050 or .075 MHz.
Freq. b 19
5
1
1 4
494.525
Fraction appears next to hex code in 25 kHz mode
b 19 51 1
4 MUTE
494.525
-40
-20
0
Selecting Frequency Using Two Buttons
Hold the MENU/SEL button in, then use the and arrow buttons for alternate
increments.
100 kHz Mode 1 band steps
10 MHz steps
Freq. b 19
51
494.500
1.6 MHz steps to nearest 100 kHz
channel
100 kHz steps to next 100 kHz
channel
10 MHz steps
25 kHz Mode
Freq. b 19
5
1
1 4
494.525
1 band steps 1.6 MHz steps 100 kHz steps
Helpful Features on Receivers
To aid in finding clear frequencies, several Lectrosonics receivers offer a
SmartTune feature that scans the tuning range of the receiver and displays a
graphical report that shows where RF signals are present at different levels,
and areas where there is little or no RF energy present. The software then
automatically selects the best channel for operation.
Lectrosonics receivers equipped with an IR Sync function allow the receiver to
set frequency, step size and compatibility modes on the transmitter via an
infrared link between the two units.
About Overlapping Frequency Bands
When two frequency bands overlap, it is possible to select the same frequency
at the upper end of one and the lower end of the other. While the frequency
will be the same, the pilot tones will be different, as indicated by the hex
codes that appear.
In the following examples, the frequency is set to 494.500 MHz, but one is in
band 470 and the other in band 19. This is done intentionally to maintain
compatibility with receivers that tune across a single band. The band number
and hex code must match the receiver to enable the correct pilot tone.
Freq. b 19
51
494.500
Freq. b470
F4
494.500
Make sure the band number and hex code
match the receiver setting
10
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Selecting Audio Polarity (Phase)
Audio polarity can be inverted at the transmitter so the audio can be mixed
with other microphones without 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 backlight 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? B a t Ty p e Default
Rf On?
No Ye s
Restoring Default Settings
This is used to restore the factory settings.
Backlit Rf On? B a t Ty p e Default
Default settings
No Ye s
IR (infrared) Sync
The opening on the side panel is an IR port for quick setup using a receiver
with this capability. The transfer is initiated with a switch on the receiver.
IR Port
614.4 – 691.1 MHz FCCID:DBZLMBC1 S/N XXXXX Lectrosonics, Inc. Model: LMBC1
Made in U.S.A. IC: 8024A-LMBC1
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
IR Sync
IR Sync
OK
BLOCK
C O M PAT
Mismatch Mismatch
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? B a t Ty p e Default
B a t Ty p e
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 transmitter. 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.
Rio Rancho, NM
11
LMb, LMb/E01, LMb/E06, Lmb/X
2.7K
5-Pin Input Jack Wiring
The wiring diagrams included in this section represent the basic wiring
necessary for the most common types of microphones and other audio inputs.
Some microphones may require extra jumpers or a slight variation on the
diagrams shown.
It is virtually impossible to keep completely up to date on changes that other
manufacturers make to their products, thus you may encounter a microphone that
differs from these instructions. If this occurs please call our toll-free
number listed under Service and Repair in this manual or visit our web site
at:
www.lectrosonics.com +5 VDC
1k 500 Ohm
Servo Bias
1
GND
100 Ohm
Pin 4 to Pin 1 = 0 V
2
5V SOURCE
+ 15uF
Pin 4 Open = 2 V Pin 4 to Pin 2 = 4 V
3
MIC
4
VOLTAGE SELECT
200 Ohm
30uF
5
LINE IN
+ 3.3uF
10k
To Audio Amplifier To Limiter Control
Audio input jack wiring:
PIN 1 Shield (ground) for positive biased electret lavaliere microphones.
Shield (ground) for dynamic microphones and line level inputs.
PIN 2 Bias voltage source for positive biased electret lavaliere microphones
that are not using servo bias circuitry and voltage source for 4 volt servo
bias wiring.
PIN 3 Microphone level input and bias supply.
PIN 4 Bias voltage selector for Pin 3. Pin 3 voltage depends on Pin 4
connection.
Pin 4 tied to Pin 1: 0 V Pin 4 Open: 2 V Pin 4 to Pin 2: 4 V
PIN 5 Line level input for tape decks, mixer outputs, musical instruments,
etc.
Backshell with strain relief
Insulator Insert TA5F Latchlock
Cable clamp
Remove strain relief if using dust boot
Backshell without strain
relief
Dust boot (35510)
Installing the Connector:
Note: If you use the dust boot, remove the rubber strain relief that is attached to the TA5F cap, or the boot will not fit over the assembly.
-
If necessary, remove the old connector from the microphone cable.
-
Slide the dust boot onto microphone cable with the large end facing the connector.
-
If necessary, slide the 1/8-inch black shrink tubing onto the mircrophone cable. This tubing is needed for some smaller diameter cables to ensure there is a snug fit in the dust boot.
-
Slide the backshell over the cable as shown above. Slide the insulator over the cable before soldering the wires to the pins on the insert.
-
If necessary, remove the rubber strain relief from the TA5F backshell by simply pulling it out.
-
Seat the insulator on the insert. Slide the cable clamp over the and of the insulator and crimp as shown on the next page.
-
Insert the assembled insert/insulator/clamp into the latchlock. Make sure the tab and slot align to allow the insert to fully seat in the latchlock. Thread the backshell onto the latchlock.
-
Solder the wires and resistors to the pins on the insert according to the diagrams shown in Wiring Hookups for Different Sources. A length of .065 OD clear tubing is included if you need to insulate the resistor leads or shield wire.
12
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Microphone Cable Termination for Non-Lectrosonics Microphones
TA5F Connector Assembly
Mic Cord Stripping Instructions
1
4
5
23
VIEW FROM SOLDER SIDE OF PINS
0.15″ 0.3″
Crimping to Shield and Insulation
Shield
Crimp these fingers to contact the shield
Strip and position the cable so that the clamp can be crimped to contact both the mic cable shield and the insulation. The shield contact reduces noise with some microphones and the insulation clamp increases ruggedness.
Insulation
Crimp these fingers to clamp the insulation
NOTE: This termination is intended for UHF transmitters only. VHF transmitters with 5-pin jacks require a different termination. Lectrosonics lavaliere microphones are terminated for compatibility with VHF and UHF transmitters, which is different from what is shown here.
Rio Rancho, NM
13
LMb, LMb/E01, LMb/E06, Lmb/X
Input Jack Wiring for Different Sources
In addition to the microphone and line level wiring hookups illustrated below, Lectrosonics makes a number of cables and adapters for other situations such as connecting musical instruments (guitars, bass guitars, etc.) to the transmitter. Visit www.lectrosonics.com and click on Accessories, or download the master catalog.
A lot of information regarding microphone wiring is also available in the FAQ
section of the web site at:
http://www.lectrosonics.com
Hover over Support and click on FAQs. Follow the instructions to search by
model number or other search options.
Compatible Wiring for Both Servo Bias Inputs and Earlier Transmitters:
Fig. 1
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
SHIELD AUDIO
PIN 1
1.5 k 2
Compatible wiring for microphones such as Countryman E6 headworn and B6 lavaliere.
3.3 k
3 4
Also see Fig. 9
5
45 1
3
2
TA5F PLUG
Fig. 2
4 VOLT POSITIVE BIAS 2-WIRE ELECTRET
Most common type of wiring for lavaliere mics.
WIRING FOR LECTROSONICS M152/5P
The M152 lavaliere microphone has an internal resistor and can be wired in a 2-wire configuration. This is the factory standard wiring.
RED WHITE (N/C)
Fig. 7
BALANCED AND FLOATING LINE LEVEL SIGNALS
XLR JACK
*NOTE: If the output is balanced but center tapped to ground, such as on all Lectrosonics receivers, do not connect Pin 3 of the XLR jack to Pin 4 of the TA5F connector.
Fig. 8
UNBALANCED LINE LEVEL SIGNALS SLEEVE SHIELD
AUDIO TIP LINE LEVEL RCA or 1/4″ PLUG For signal levels up to 3V (+12 dBu)
before limiting. Fully compatible with 5-pin inputs on other Lectrosonics
transmitters such as the LM and UM Series. A 20k ohm resistor can be inserted
in series with Pin 5 for an additional 20 dB of attenuation to handle up to
30V (+32 dBu).
PIN 1 2
3 4 5
TA5F PLUG
45 1
3
2
TA5F PLUG
Fig. 3 – DPA Microphones
DANISH PRO AUDIO MINIATURE MODELS
This wiring is for DPA lavalier and headset microphones.
NOTE: The resistor value can range from 3k to 4 k ohms. Same as DPA adapter
DAD3056
Fig. 4
2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET 2.7 k PIN
1 SHIELD
2 AUDIO
3
Compatible wiring for microphones
such as negative bias TRAM models.
4
5 NOTE: The resistor value can range from 2k to 4k ohms.
45 1
3
2
TA5F PLUG
Fig. 5 – Sanken COS-11 and others
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET WITH EXTERNAL RESISTOR
SHIELD
Also used for other 3-wire lavaliere microphones that require an external resistor.
DRAIN (BIAS) SOURCE (AUDIO)
Fig. 6
LO-Z MICROPHONE LEVEL SIGNALS
Simple Wiring – Can ONLY be used with Servo Bias Inputs:
Servo Bias was introduced in 2005 and all transmitters with 5-pin inputs have
been built with this feature since 2007.
Fig. 9
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
Simplified wiring for microphones such as Countryman B6 Lavalier and E6 Earset
models and others.
NOTE: This servo bias wiring is not compatible with earlier versions of
Lectrosonics transmitters. Check with the factory to confirm which models can
use this wiring.
Fig. 10
2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET
Simplified wiring for microphones such as negative bias TRAM. NOTE: This servo
bias wiring is not compatible with earlier versions of Lectrosonics
transmitters. Check with the factory to confirm which models can use this
wiring.
Fig. 11
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET
XLR JACK For low impedance dynamic mics or electret
mics with internal battery or power supply. Insert 1k resistor in series with
pin 3 if attenuation is needed
14
NOTE: This servo bias wiring is not compatible with earlier versions of
Lectrosonics transmitters. Check with the factory to confirm which models can
use this wiring.
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Microphone RF Bypassing
When used on a wireless transmitter, the microphone element is in the
proximity of the RF coming from the transmitter. The nature of electret
microphones makes them sensitive to RF, which can cause problems with
microphone/transmitter compatibility. If the electret microphone is not
designed properly for use with wireless transmitters, it may be necessary to
install a chip capacitor in the mic capsule or connector to block the RF from
entering the electret capsule.
Some mics require RF protection to keep the radio signal from affecting the
capsule, even though the transmitter input circuitry is already RF bypassed.
If the mic is wired as directed, and you are having difficulty with squealing,
high noise, or poor frequency response, RF is likely to be the cause.
The best RF protection is accomplished by installing RF bypass capacitors at
the mic capsule. If this is not possible, or if you are still having problems,
capacitors can be installed on the mic pins inside the TA5F connector housing.
Refer to the diagram below for the correct locations of capacitors.
Use 330 pF capacitors. Capacitors are available from Lectrosonics. Please
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 capacitors installed for proper operation.
2-WIRE MIC
Capacitors next to mic capsule
3-WIRE MIC
SHIELD
CAPSULE
SHIELD
AUDIO TA5F
CONNECTOR
AUDIO
CAPSULE
BIAS
Capacitors in TA5F connector
TA5F CONNECTOR
Line Level Signals
The normal wiring for line level signals is: · Signal Hot to pin 5 · Signal
Gnd to pin 1 · Pin 4 jumped to pin 1
This allows signal levels up to 3V RMS to be applied without limiting. If more
headroom is needed, insert a 20 k resistor in series with pin 5. Put this
resistor inside the TA5F connector to minimize noise pickup.
Line Level Normal Wiring
See Fig. 8 on previous page
Line Level More Headroom
(20 dB)
Wiring Diagram for MI39A Instrument Cable
The MI39ARA and MI39AST instrument cable assemblies allow an optimum match
between musical instrument pickups and Lectrosonics transmitters with 5-pin
input connectors.
The cables are wired to provide an extended low frequency response with a
roll-off at 35 Hz.
Note: This cable is prewired and cannot be field modified. The cable is
available in two configurations, MI39ARA (right angle 1/4″ plug) and MI39AST
(straight 1/4″ plug).
1/4 ” PLUG
SLEEVE SHIELD
AUDIO TIP
Preamp
Preamp is located inside the connector shell
SHIELD
PIN 1
PWR
2
AUDIO 3
4
5
45 1
3
2
TA5F PLUG
Rio Rancho, NM
15
LMb, LMb/E01, LMb/E06, Lmb/X
Supplied Accessories
P/N 26526 Wire belt clip (installed on transmitter) P/N 55008 AA battery
caddy; 4-pack; blue
Optional Accessories
BCHINGED Hinged belt clip
LMCVR M152/5P
Silicone cover protects the LMb transmitter from moisture and dust.
Lavaliere microphone; omnidirectional
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″ plug
MI39ARA
Instrument cable; active type for use with most instrument pickups; right angle 1/4″ plug
MI39AST
Instrument cable; active type for use with most instrument pickups; straight 1/4″ plug
MC35
Line level adapter cable; XLR-F to TA5F; 37″ length
MC41
Dynamic mic level adapter cable; XLR-F to TA5F; 37″ length
16
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Troubleshooting
Symptom:
Transmitter Battery LED off when Power Switch “ON”
It is important that you follow these steps in the sequence listed.
Possible Cause:
1. Batteries are inserted incorrectly. 2. Batteries are low or dead.
No Transmitter Modulation LEDs when Signal Should be Present
1. Gain control turned all the way down. 2. Batteries are inserted incorrectly. Check power LED. 3. Mic capsule is damaged or malfunctioning. 4. Mic cable damaged or miswired. 5. Instrument Cable damaged or not plugged in. 6. Musical instrument output level set too low.
Receiver Indicates RF But No Audio
1. Audio source or cable connected to transmitter is defective. Try using an
alternate source or cable.
2. Make sure the compatibility mode is the same on transmitter and receiver.
3. Ensure musical instrument volume control is not set to minimum.
4. Check for correct pilot tone indication on the receiver. See item on page
11 entitled About Overlapping Frequency Bands.
Receiver RF Indicator Off
1. Ensure that the transmitter and receiver are set to the same frequency,
and that the hex code matches.
2. Transmitter not turned on, or battery is dead. 3. Receiver antenna missing
or improperly positioned. 4. Operating distance is too great. 5. Transmitter
may be set to the Standby Mode. See page 7.
No Sound (Or Low Sound Level), Receiver Indicates Proper Audio Modulation
1. Receiver output level set too low. 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 Modulation LEDs on
transmitter and receiver while distortion is being heard.
2. Receiver output level may be mismatched with the sound system or recorder
input. Adjust output level on receiver to the correct level for the recorder,
mixer or sound system.
3. Transmitter and receiver may not be set to the same compatibility mode.
Some mis-matched combinations will pass audio.
4. RF interference. Reset both transmitter and receiver to a clear channel.
Use scanning function on receiver if available.
Wind Noise or Breath “Pops'”
1. Reposition microphone, or use a larger windscreen, or both.
2. Omni-directional mics produce less wind noise and breath pops than
directional types.
Hiss and Noise — Audible Dropouts
1. Transmitter gain (audio level) far too low. 2. Receiver antenna missing or
obstructed. 3. Operating distance too great. 4. RF interference. Reset both
transmitter and receiver to a
clear channel. Use scanning function on receiver if available. 5. Musical
instrument output set too low. 6. Microphone capsule picking up RF noise. See
item on page 15
entitled Microphone RF Bypassing.
Excessive Feedback (With Microphone)
1. Transmitter gain (audio level) too high. Check gain adjustment and/or
reduce receiver output level.
2. Microphone too close to speaker system. 3. Microphone is too far from
user’s mouth.
Rio Rancho, NM
17
LMb, LMb/E01, LMb/E06, Lmb/X
Specifications and Features
Operating Frequencies: US: E01:
E06:
Band A1: 470.100 – 537.575 Band B1: 537.600 – 607.950
Band A1: 470.100 – 537.575 Band B1: 537.600 – 614.375 Band C1: 614.400 –
691.175
Band B1: 537.600 – 614.375 Band C1: 614.400 – 691.175
X:
Band A1: 470.100 – 537.575 MHz
Band B1: 537.600 – 614.375 MHz
Band C1: 614.400 – 691.175 MHz
NOTE: It’s the user’s responsibility to select the approved frequencies for the region where the transmitter is operating
Frequency Selection Steps:
Selectable; 100 kHz or 25 kHz
RF Power output: Compatibility Modes:
US: 50 mW E01: 50 mW E06: 100 mW EIRP X: 50 mW
US: Nu Hybrid, Mode 3, IFB E01: Digital Hybrid, IFB E06: 100 Mode, 200 Mode,
Mode 3,
Digital Hybrid, IFB, Mode 6, Mode 7 X: 100 Mode, 200 Mode, Mode 3,
Digital Hybrid, IFB, Mode 6, Mode 7
Pilot tone: Frequency Stability: Spurious radiation: Equivalent input noise:
Input level: Input impedance:
Input limiter: Gain control range: Modulation indicators:
25 to 32 kHz; 5 kHz deviation (Digital Hybrid mode) 3.5 kHz deviation (Nu
Hybrid)
± 0.002%
US: Compliant with ETSI EN 300 422-1 v1.4.2 E01/E06/X: 60 dB below carrier
120 dBV (A-weighted)
Nominal 2 mV to 300 mV, before limiting; Greater than 1V maximum, with
limiting
US: 2k Ohm E01/E06/X: Mic: 300 Ohm, Line: 2k Ohm (for
E01/E06/X)
DSP controlled, dual envelope “soft” limiter with greater than 30 dB range
44 dB; digital control
· Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced
to full modulation
· LCD bar graph
Operating temp. range:
Audio Performance: Frequency Response:
Celsius: -20° – 40° Farenheit: -5° – 104°
90 Hz to 20 kHz (+/-1dB) – NuHybrid 70 Hz to 20 kHz (+/-1dB) – Digital Hybrid
Low frequency roll-off:
12 dB/octave; 70 Hz – Nu Hybrid
THD:
0.2% (typical)
SNR at receiver output:
SmartNR No Limiting w/Limiting
OFF
103.5
108.0
Note: The dual envelope “soft”
NORMAL 107.0
111.5
limiter provides exceptionally good FULL
108.5
113.0
handling of transients using variable
attack and release time constants. Once activated, the limiter compresses 30+ dB
of transmitter input range into 4.5 dB of receiver output range, thus reducing the
measured figure for SNR without limiting by 4.5 dB
Controls:
Audio Input Jack: Antenna: Battery: Battery Life: Weight: Dimensions: Emission
Designator:
· Top panel slide switch; programmable as power, mute, talkback or no (off)
function
· Side panel membrane switches with LCD interface for power on/off and all
setup and configuration controls
Switchcraft 5-pin locking (TA5F)
Galvanized steel, flexible wire
Two AA lithium
Duracell Ultra: 7 hours
5 ounces (141 grams), including lithium AA batteries and wire belt clip
3.2 x 2.4 x .8 in. (81 x 61 x 20 mm)
110KF3E (US) 180KF3E (E01, E06)
Specifications subject to change without notice.
For body worn operation, this transmitter model has been tested and meets the
FCC RF exposure guidelines when used with the Lectrosonics accessories
supplied or designated for this product. Use of other accessories may not
ensure 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 limits as set forth for an
uncontrolled environment. This device should be installed and operated so that
its antenna(s) are not co-located or operating in conjunction with any other
antenna or transmitter.
This device complies with Industry Canada radiation exposure limits as set
forth for a controlled “professional” use only.
Cet appareil est conforme avec les normes d’Industrie Canada concernant les
limites d’exposition aux radiations pour un usage professionnel contrôlé
seulement.
18
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Service and Repair
If your system malfunctions, you should attempt to correct or isolate the
trouble before concluding that the equipment needs repair. Make sure you have
followed the setup procedure and operating instructions. Check the
interconnecting cables and then go through the Troubleshooting section in this
manual.
We strongly recommend that you do not try to repair the equipment yourself and
do not have the local repair shop attempt anything other than the simplest
repair. If the repair is more complicated than a broken wire or loose
connection, send the unit to the factory for repair and service. Don’t attempt
to adjust any controls inside the units. Once set at the factory, the various
controls and trimmers do not drift with age or vibration and never require
readjustment. There are no adjustments inside that will make a malfunctioning
unit start working.
LECTROSONICS’ Service Department is equipped and staffed to quickly repair
your equipment. In warranty repairs are made at no charge in accordance with
the terms of the warranty. Out-of-warranty repairs are charged at a modest
flat rate plus parts and shipping. Since it takes almost as much time and
effort to determine what is wrong as it does to make the repair, there is a
charge for an exact quotation. We will be happy to quote approximate charges
by phone for out-of-warranty repairs.
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 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 Time).
B. After receiving your request, we will issue you a return authorization
number (R.A.). This number will help speed your repair through our receiving
and repair departments. The return authorization number must be clearly shown
on the outside of the shipping container.
C. Pack the equipment carefully and ship to us, shipping costs prepaid. If
necessary, we can provide you with the proper packing materials. UPS is
usually the best way to ship the units. Heavy units should be “double-boxed”
for safe transport.
D. We also strongly recommend that you insure the equipment, since we cannot
be responsible for loss of or damage to equipment that you ship. Of course, we
insure the equipment when we ship it back to you.
Lectrosonics USA:
Mailing address: Lectrosonics, Inc. PO Box 15900 Rio Rancho, NM 87174 USA
Shipping address: Lectrosonics, Inc. 581 Laser Rd. Rio Rancho, NM 87124 USA
Telephone: 505-892-4501 800-821-1121 Toll-free 505-892-6243 Fax
Web: www.lectrosonics.com
E-mail: sales@lectrosonics.com
Lectrosonics Canada:
Mailing Address: 720 Spadina Avenue, Suite 600 Toronto, Ontario M5S 2T9
Telephone: 416-596-2202 877-753-2876 Toll-free (877-7LECTRO) 416-596-6648 Fax
E-mail: Sales: colinb@lectrosonics.com Service: joeb@lectrosonics.com
Self-Help Options for Non-Urgent Concerns
Our Facebook groups and weblists are a wealth of knowledge for user questions and information. Refer to:
Lectrosonics General Facebook Group: https://www.facebook.com/groups/69511015699
D Squared, Venue 2 and Wireless Designer Group: https://www.facebook.com/groups/104052953321109
The Wire Lists: https://lectrosonics.com/the-wire-lists.html
Rio Rancho, NM
19
LMb, LMb/E01, LMb/E06, Lmb/X
20
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Rio Rancho, NM
21
LMb, LMb/E01, LMb/E06, Lmb/X
22
LECTROSONICS, INC.
Digital Hybrid Wireless® UHF Belt Pack Transmitter
Rio Rancho, NM
23
LIMITED ONE YEAR WARRANTY
The equipment is warranted for one year from date of purchase against defects
in materials or workmanship provided it was purchased from an authorized
dealer. This warranty does not cover equipment which has been abused or
damaged by careless handling or shipping. This warranty does not apply to used
or demonstrator equipment.
Should any defect develop, Lectrosonics, Inc. will, at our option, repair or
replace any defective parts without charge for either parts or labor. If
Lectrosonics, Inc. cannot correct the defect in your equipment, it will be
replaced at no charge with a similar new 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 one year from the date of
purchase.
This Limited Warranty is governed by the laws of the State of New Mexico. It
states the entire liablility of Lectrosonics Inc. and the entire remedy of the
purchaser for any breach of warranty as outlined above. NEITHER LECTROSONICS,
INC. NOR ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT SHALL
BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, CONSEQUENTIAL, OR INCIDENTAL
DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS EQUIPMENT EVEN IF
LECTROSONICS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO
EVENT SHALL THE LIABILITY OF LECTROSONICS, INC. EXCEED THE PURCHASE PRICE OF
ANY DEFECTIVE EQUIPMENT.
This warranty gives you specific legal rights. You may have additional legal
rights which vary from state to state.
581 Laser Road NE · Rio Rancho, NM 87124 USA · www.lectrosonics.com 505-892-4501 · 800-821-1121 · fax 505-892-6243 · sales@lectrosonics.com
24 January 2022
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