Lectrosonics LMBA1 Wireless Microphone Transmitter User Manual LMBman

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INSTRUCTION MANUAL
LMb
Synthesized UHF Belt-Pack Transmitter
Featuring
Digital Hybrid WirelessÂŽ
Technology
US Patent 7,225,135
Quick Start Steps
1) Install good batteries and turn power on (see pages
6 and 7).
2) Set compatibility 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 receiver manual for scanning
procedure.
5) Turn on the receiver and verify RF and audio signals are present (see receiver manual).
Fill in for your records:
Serial Number:
Purchase Date:
Rio Rancho, NM, USA
www.lectrosonics.com
LMb
Table of Contents
Introduction.............................................................................3
About Digital Hybrid Wireless ...............................................3
Frequency Agility...................................................................3
Wide-Band Deviation ............................................................3
Servo Bias Input and Wiring .................................................3
LMb Block Diagram ...............................................................4
DSP-controlled Input Limiter .................................................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
IR (infrared) Sync ..................................................................9
Selecting the Compatibility (Compat) Mode..........................9
Connecting the Signal Source ..............................................9
Adjusting the Input Gain........................................................9
Selecting Step Size .............................................................10
Selecting Frequency ...........................................................10
Selecting Frequency Using Two Buttons .............................10
Helpful Features on Receivers ............................................10
About Overlapping Frequency Blocks .................................11
Selecting Audio Polarity (Phase).........................................11
Adjusting LCD Backlight .....................................................11
RF ON/OFF on the Menu....................................................11
Selecting Battery Type ........................................................11
Restoring Default Settings ..................................................11
5-Pin Input Jack Wiring ........................................................12
Microphone Cable Termination
for Non-Lectrosonics Microphones .............................13
Input Jack Wiring for Different Sources .............................14
Compatible Wiring for Both Servo Bias Inputs
and Earlier Transmitters: .....................................................14
Simple Wiring - Can ONLY be used
with Servo Bias Inputs:........................................................14
Microphone RF Bypassing ..................................................15
Line Level Signals ...............................................................15
Wiring Diagram for MI39A Instrument Cable ......................15
Accessories ..........................................................................16
Troubleshooting....................................................................17
Specications 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
LECTROSONICS, INC.
Digital Hybrid Wireless Belt-Pack Transmitter
Introduction
The design of the LMb transmitter delivers the advanced technology and features of Digital Hybrid WirelessÂŽ in a Lectrosonics belt-pack transmitter at a modest
cost. Digital Hybrid WirelessÂŽ 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 nest analog
wireless systems. DSP “compatibility modes” allow the
LMb to also 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 amplier 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 WirelessÂŽ 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
Rio Rancho, NM
audio suddenly during brief dropouts and weak signal
conditions. The Digital Hybrid WirelessÂŽ system simply
encodes the signal to use a noisy channel as efciently
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 WirelessŽ enjoys all the benets of conventional
FM wireless systems, such as excellent range, efcient
use of RF spectrum, and long battery life.
Frequency Agility
Frequency selection is provided in 100 kHz or 25 kHz
steps with up to 3072 channels available covering three
standard Lectrosonics 25.6 MHz blocks. 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 WirelessÂŽ
mode, the system operates with a maximum of +/-75
kHz of deviation. The resulting 180 kHz of occupied
bandwidth just ts inside the government specied
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 conguration. Simplied 2-wire and 3-wire congurations 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.
LMb
DSP-controlled Input Limiter
Pilot Tone Squelch
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.
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.
No Pre-Emphasis/De-Emphasis
Because the signal to noise ratio of the Digital Hybrid
WirelessÂŽ 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.
LMb Block Diagram
+5V
Servo Bias
Supply
Bias Voltage
0, 2 or 4V
Input
Preamp
HI/Lo
Pass
Filter
AUDIO
Gain
Adj
Shunt
Limiter
D-A
Converter
A-D
Converter
Input
Jack
I2S
I2S
Encoded
Audio and
Pilot Tone
(2) AA
Batteries
Switching
Power
Supply
DSP Clock
Limiter Control
Oscillator
Tricolor
Power
LED
Microprocessor
Bicolor
Modulation
LEDs
AUDIO
Micro Clock
LMb Transmitter
Keypad
Oscillator
Buffer Amp
and Filter
PLL Ref
Voltage Controlled
Oscillator
Phase Locked Loop
Filters
(3)
Driver
Control
Final
Amplifier
LECTROSONICS, INC.
Digital Hybrid Wireless 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.
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.
close but the unit will not operate.
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.
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 WirelessÂŽ receivers.
Push outward on the Battery Compartment Door and lift
it to open.
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.
Battery polarity is marked inside the compartment
If the batteries are inserted incorrectly, the door will
Rio Rancho, NM
LMb
Operating Instructions
614.4 - 691.1 MHz
IR Sync
Port
FCCID:DBZLMBC1 S/N XXXXX
Lectrosonics, Inc. Model: LMBC1
Made in U.S.A.
IC: 8024A-LMBC1
RF Indicator
Battery Status LED
Battery icon
Reserved for Future Use
Input Jack
5A
Power/Function
LED
Menu
navigation
buttons
Modulation
LEDs
BAT
Programmable
Switch
Power Button
Belt clip mounting hole
Move switch
toward the white
dot to turn it on
-10
Slide door
outward
to open
battery
door
-20
-20
-20
-10
-40
BAT
623.400
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 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.
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. Start with a fully charged battery, then
measure the time it takes for the Power LED to go out
completely.
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, rmware version,
frequency block and compatibility mode.
Hold
for
Rf On
...3
LMB
V1.00
Blk. 19
Hybrid
b 19
51
494.500
-40
-20
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.
LECTROSONICS, INC.
Digital Hybrid Wireless Belt-Pack Transmitter
Powering On in Standby Mode
Locking/Unlocking Changes to Settings
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 without 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
-20
NOTE: Also see the section entitled Power Menu
for the AutoOn feature.
Powering Off
From any screen, power can be
turned off by selecting Pwr Off in the
power menu, holding the Power
Button
in and waiting for the
countdown, or with the programmable switch (if it is congured 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: If the programmable switch is in the OFF
position, power can still be turned on with the
power button. If the programmable switch is then
turned on, a brief message will appear on the LCD.
Navigating Menus
The LCD and keypad interface makes it easy to browse
the menus and make the selections for the setup you
need. 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.
MuteSw
Compat
Gain
25
-40
-20
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.
Rio Rancho, NM
Locked?
Gain
25
No
Yes
-40
-20
A small padlock symbol will appear on adjustment
screens when changes have been locked.
After settings and adjustments are made, press the
power button again to turn the unit off.
StepSiz
Phase
Locked
Rf On?
494.500
-40
Powering
Off . . .
Changes to the settings can be locked.
When changes are locked, several controls and actions
can still be used:
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀ ฀ ฀
฀ ฀ ฀
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
฀ Rf On? - enters a screen to enable the operating or
standby modes
฀ AutoOn? - allows the unit to automatically power
back up after a power failure or when new batteries
are installed; works in the operating mode only
฀ Pwr Off - turns the unit off irrevocably
Resume
Rf On?
AutoOn?
Pwr Off
Resume
Rf On?
AutoOn?
Pwr Off
Resume and Pwr Off
will execute
the command
immediately
The other two menu items will open a screen asking for
a Yes or No answer.
Resume
Rf On?
AutoOn?
Pwr Off
Rf On?
Resume
Rf On?
AutoOn?
Pwr Off
AutoOn?
No
Yes
No
Yes
LMb
Selecting Programmable Switch Functions
The programmable switch on the top panel can be congured 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)
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.
฀ (none) - disables the switch
MuteSw
MuteSw
Power
Mute
b 19
494.525
Main Window Indicators
The Main Window displays the block 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.
Operating mode
b 19
51 MUTE
494.500
Battery status
Programmable
switch function
Frequency (MHz)
-40
-20
494.525
Audio level
When the frequency step size is set to 25 kHz, the hex
number may include a fraction.
b 19
51 MUTE
494.500
-40
-20
Mute function
enabled but
not active
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.
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
BAT
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.
Frequency
(hex setting)
-20
(none)
Block number
-20
If the programmable switch function is set for Mute, the
Main Window will indicate that the function is enabled.
MuteSw
TalkBk
b 19
MUTE
-40
MuteSw
Freq.
-10
Gain
Freq.
MuteSw
Compat
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
Talkback
function is
enabled but
not active
Fraction
-40
-20
The TB icon will
change when
Talkback is active
b 19
51
TB
494.500
-40
-20
BAT
3/4 = .075 MHz
When the programmable switch is turned on, the talkback icon appearance will change and the power/function LED will glow blue.
Top Panel LED will
glow blue when
Talkback is active
-20
1/2 = .050 MHz
Note that the
frequency has
increased by 25
kHz from the upper
example.
-10
1/4 = .025 MHz
b 19
51 41 MUTE
494.525
LECTROSONICS, INC.
Digital Hybrid Wireless Belt-Pack Transmitter
Connecting the Signal Source
IR (infrared) Sync
The opening on the side panel is an IR port for quick
setup using a receiver with this function available. IR
Sync will transfer the settings for frequency, step size
and compatibility mode from the receiver to the transmitter. Refer to your receiver manual for details.
IR Port
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.
614.4 - 691.1 MHz
FCCID:DBZLMBC1 S/N XXXXX
Lectrosonics, Inc. Model: LMBC1
Made in U.S.A.
IC: 8024A-LMBC1
Selecting the Compatibility (Compat) Mode
When used with a Lectrosonics Digital Hybrid WirelessÂŽ
receiver, the best audio quality will be achieved with the
system set to the Hybrid compatibility mode.
Compat
Gain
Freq.
MuteSw
Compat
Compatibility modes are as follows:
Receiver Models
LCD menu item
฀
฀
฀
฀
฀
฀
฀฀
฀
฀
฀
฀
฀
฀
฀
฀
Hybrid
฀
฀
฀
฀
฀
฀
฀
฀
฀
฀
100 Series works with Lectrosonics UCR100 analog
receivers.
200 Series works with Lectrosonics earlier
UCR201/205/210D/211 and UCR195 analog receivers
with dual band compandors.
Mode 3* works with certain non-Lectrosonics models.
Digital Hybrid WirelessÂŽ works with all Lectrosonics
Digital Hybrid receivers. The receiver must also be set
to the Digital Hybrid compatibility mode.
IFB Series works with Lectrosonics IFB R1/R1a analog
receivers.
Mode 6* works with certain non-Lectrosonics models.
Mode 7* works with certain non-Lectrosonics models.
฀
฀
฀
Rio Rancho, NM
฀
฀
฀ ฀
-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
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.
1) With fresh batteries in the transmitter, power the
unit on in the standby mode (see previous section
Powering On in Standby Mode).
2) Navigate to the Gain setup screen.
฀ ฀
ÂŽ
Signal Level
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.
Hybrid
Use the UP and DOWN arrows to select the desired
mode, then press the BACK button twice to return to
the Main Window.
฀
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.
฀
Gain
Freq.
MuteSw
Compat
Gain
25
-40
-20
3) 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.
4) 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.
5) Once the audio gain has been set, the signal can
be sent through the sound system for overall level
adjustments, monitor settings, etc.
6) 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.
LMb
Selecting Step Size
This menu item allows frequencies to be selected in
either 100 kHz or 25 kHz increments.
Compat
StepSiz
Phase
Locked
StepSiz
100 kHz
25 kHz
StepSiz
100 kHz
25 kHz
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
51
b 19
51 41 MUTE
494.525
Fraction appears
next to hex code
in 25 kHz mode
494.525
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 nd a clear operating frequency. All Lectrosonics Digital Hybrid WirelessŽ
receivers provide a scanning function to quickly and
easily nd prospective frequencies with little or no RF
interference. In other cases, a frequency may be specied by ofcials 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.
-40
Hold the MENU/SEL button in, then use the
arrow buttons for alternate increments.
100 kHz Mode
Freq.
b 19
10 MHz steps
51
494.500
The setup screen for frequency selection offers several
ways to browse the available frequencies.
25 kHz Mode
Freq.
b 19
Freq.
b 19
51
Press MENU/
SEL to select
one of four
elds to make
adjustments
494.500
Each eld 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
These two elds step in 25 kHz
increments when the step size is 25
kHz and 100 kHz increments when
the step size is 100 kHz.
Selecting Frequency Using Two Buttons
Selecting Frequency
Gain
Freq.
MuteSw
Compat
-20
10 MHz steps
51 41
494.525
and
1 block steps
1.6 MHz steps to
nearest 100 kHz
channel
100 kHz steps
to next 100 kHz
channel
1 block steps
1.6 MHz steps
100 kHz steps
Helpful Features on Receivers
To aid in nding 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.
51
494.500
Freq.
b 19
10
These two elds
always step in the
same increments
Freq.
b 19
51
1 block steps
51
494.500
1 MHz steps
494.500
LECTROSONICS, INC.
Digital Hybrid Wireless Belt-Pack Transmitter
About Overlapping Frequency Blocks
When two frequency blocks 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 block 470 and the other in
block 19. This is done intentionally to maintain compatibility with receivers that tune across a single block. The
block number and hex code must match the receiver to
enable the correct pilot tone.
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
Freq.
b 19
Freq.
b470
51
F4
494.500
494.500
Make sure the block number and
hex code match the receiver setting
Selecting Audio Polarity (Phase)
Audio polarity can be inverted at the transmitter so the
audio can be mixed with other microphones without
comb ltering. The polarity can also be inverted at the
receiver outputs.
Compat
StepSiz
Phase
Locked
Phase
Pos.
Neg.
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 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 WirelessÂŽ receivers.
Restoring Default Settings
This is used to restore the factory settings.
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?
Rio Rancho, NM
Backlit
Rf On?
BatType
Default
Default
settings
No
Yes
Backlit
On
30 sec
5 min
11
LMb
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.
Audio input jack wiring:
PIN 1
Shield (ground) for positive biased electret lavaliere
microphones. Shield (ground) for dynamic microphones
and line level inputs.
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
5V SOURCE
MIC
500 Ohm
Servo Bias
15uF
200 Ohm
VOLTAGE SELECT
PIN 4
Bias voltage selector for Pin 3.
Pin 3 voltage depends on Pin 4 connection.
Pin 4 to Pin 1 = 0 V
Pin 4 Open = 2 V
Pin 4 to Pin 2 = 4 V
100 Ohm
Pin 4 tied to Pin 1: 0 V
Pin 4 Open: 2 V
Pin 4 to Pin 2: 4 V
30uF
GND
PIN 3
Microphone level input and bias supply.
+5 VDC
1k
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.
To Audio Amplifier
To Limiter Control
LINE IN
PIN 5
Line level input for tape decks, mixer outputs, musical
instruments, etc.
3.3uF
2.7K
10k
Backshell with
strain relief
Insulator
TA5F Latchlock
Remove strain relief
if using dust boot
Cable clamp
Insert
Backshell
without strain
relief
Dust boot (35510)
Note: If you use the dust boot, remove the rubber
strain relief that is attached to the TA5F cap, or the
boot will not t over the assembly.
Installing the Connector:
1) If necessary, remove the old connector from the
microphone cable.
2) Slide the dust boot onto microphone cable with the
large end facing the connector.
3) 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 t in the dust boot.
4) 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.
6) If necessary, remove the rubber strain relief from
the TA5F backshell by simply pulling it out.
7) Seat the insulator on the insert. Slide the cable
clamp over the and of the insulator and crimp as
shown on the next page.
8) 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.
5) 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 Belt-Pack Transmitter
Microphone Cable Termination
for Non-Lectrosonics Microphones
TA5F Connector Assembly
Mic Cord Stripping Instructions
VIEW FROM SOLDER
SIDE OF PINS
0.15"
0.3"
Crimping to Shield and Insulation
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
Shield
Crimp these
ngers to
contact the
shield
Rio Rancho, NM
Crimp these
ngers 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.
13
LMb
Input Jack Wiring for Different Sources
In addition to the microphone and line level wiring 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:
www.lectrosonics.com > SUPPORT > FAQs
Follow the instructions to search by model number or
other search options.
Compatible Wiring for Both Servo Bias Inputs and Earlier Transmitters:
Fig. 8
Fig. 1
UNBALANCED LINE LEVEL SIGNALS
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
SLEEVE
PIN
SHIELD
1.5 k
AUDIO
3.3 k
Compatible wiring for microphones such as
Countryman E6 headworn and B6 lavaliere.
TA5F
PLUG
PIN
SHIELD
AUDIO
LINE LEVEL
RCA or 1/4” PLUG
TIP
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).
TA5F
PLUG
See Line Level
Signals on next page
Fig. 2
4 VOLT POSITIVE BIAS 2-WIRE ELECTRET
Fig. 8
UNBALANCED LINE LEVEL SIGNALS
SLEEVE
Most common type of wiring for lavaliere mics.
Fully compatible with 5-pin inputs on Lectrosonics
transmitters such as the LM and UM Series.
PIN
SHIELD
AUDIO
LINE LEVEL
RCA or 1/4” PLUG
Fig. 3
TIP
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).
DPA MICROPHONES (Danish Pro Audio miniature models)
TA5F
PLUG
This wiring is for DPA lavalier
and headset microphones.
NOTE: The resistor value can range from 3k to 4k ohms.
Simple Wiring - Can ONLY be used with
Servo Bias Inputs:
Fig. 4
2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET
2.7 k
SHIELD
AUDIO
Compatible wiring for microphones
such as negative bias TRAM models.
NOTE: The resistor value can range from 2k to 4k ohms.
Fig. 5
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET
WITH EXTERNAL RESISTOR
SHIELD
Used for 3-wire lavaliere
microphones that require an
external resistor such as the
Sanken COS-11.
Fig. 9
PIN
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
TA5F
PLUG
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
DRAIN (BIAS)
SOURCE (AUDIO)
This wiring is fully compatible with 5-pin inputs on Lectrosonics
transmitters such as the LM and UM Series. This is the wiring
for the Lectrosonics M152 lavaliere microphone.
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
Fig. 6
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET
LO-Z MICROPHONE LEVEL SIGNALS
XLR JACK
For low impedance dynamic mics or electret
mics with internal battery or power supply.
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.
Insert 1k resistor in series with pin 3 if attenuation is needed
14
LECTROSONICS, INC.
Digital Hybrid Wireless Belt-Pack Transmitter
Line Level Signals
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 difculty 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
SHIELD
The normal wiring for line level signals is:
฀
฀
฀
฀
฀
฀ ฀
฀
฀ ฀
฀ ฀
฀
฀ ฀
฀
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
eld modied. The cable is available in two
configurations, MI39ARA (right angle 1/4” plug)
and MI39AST (straight 1/4” plug).
SLEEVE
AUDIO
SHIELD
SHIELD
Preamp
AUDIO
AUDIO
CAPSULE
TA5F
CONNECTOR
CAPSULE
Capacitors in
TA5F connector
Rio Rancho, NM
1/4 " PLUG
BIAS
TA5F
CONNECTOR
TIP
Preamp is located inside
the connector shell
PWR
AUDIO
PIN
TA5F
PLUG
15
LMb
Accessories
BCSLEBN
Wire belt clip
M152/5P
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 us
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 Belt-Pack Transmitter
Troubleshooting
It is important that you follow these steps in the sequence listed.
Symptom:
Possible Cause:
Transmitter Battery LED off
when Power Switch “ON”
1. Batteries are inserted incorrectly.
2. Batteries are low or dead.
No Transmitter Modulation LEDs
when Signal Should be Present
1.
2.
3.
4.
5.
6.
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 Blocks.
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.
2.
3.
4.
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
Gain control turned all the way down.
Batteries are inserted incorrectly. Check power LED.
Mic capsule is damaged or malfunctioning.
Mic cable damaged or miswired.
Instrument Cable damaged or not plugged in.
Musical instrument output level set too low.
Transmitter gain (audio level) far too low.
Receiver antenna missing or obstructed.
Operating distance too great.
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.
17
LMb
Specications and Features
Operating Frequencies:
Block A1: 470.100 - 537.575
Block B1: 537.600 - 614.375
Block C1: 614.400 - 691.175
Block D1: 691.200 - 767.975 (export only)
Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
RF Power output:
50 mW
Pilot tone:
25 to 32 kHz; 5 kHz deviation
(Digital Hybrid mode)
Frequency Stability:
Âą 0.002%
Deviation:
Âą 75 kHz max. (Digital Hybrid mode)
Spurious radiation:
60 dB below carrier
Equivalent input noise:
–120 dBV (A-weighted)
Input level:
Nominal 2 mV to 300 mV, before limiting
Greater than 1V maximum, with limiting.
฀
฀
฀
฀ ฀
฀
฀
฀
฀ ฀
Input limiter:
DSP controlled, dual envelope “soft” limiter
with greater than 30 dB range
Gain control range:
44 dB; digital control
฀
฀
฀
฀
฀
฀
฀
฀ ฀
-20, -10, 0 and +10 dB referenced to full
modulation
฀
฀
฀
฀ ฀
฀
฀
฀
฀
฀
฀
฀
power, mute, talkback or none (off) function
฀ ฀
฀
฀
฀
฀
฀
฀
interface for power on/off and all setup and
conguration controls
Audio Input Jack:
Switchcraft 5-pin locking (TA5F)
Antenna:
Galvanized steel, flexible wire
Battery:
Two AA; alkaline, lithium, NiMH rechargeable
฀
฀
฀
฀฀ ฀
฀ ฀
฀
฀
฀฀ ฀
฀ ฀
฀
฀
฀
฀
฀฀ ฀
new batteries fully charged
Weight:
5.8 ounces (141 grams), including lithium AA batteries
and wire belt clip
Dimensions:
3.2 x 2.4 x .9 in. (81 x 61 x 20 mm)
Emission Designator:
180KF3E
Audio Performance (Digital Hybrid mode)
฀
฀
฀
฀ ฀ ฀ ฀ ฀ ฀
฀
฀
฀
฀ ฀ ฀ ฀ ฀ ฀
Low frequency roll-off:
Mic input:
-3 dB at 70 Hz, slope steepens at lower frequencies
THD:
0.2% (typical)
SmartNR
No Limiting
w/Limiting
SNR at receiver output:
OFF
103.5
108.0
Note: The dual envelope “soft”
NORMAL
107.0
111.5
limiter provides exceptionally good
108.5
113.0
handling of transients using variable FULL
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 gure for SNR without limiting by 4.5 dB
Specifications subject to change without notice
The FCC requires that the following statement be included in this manual:
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.
18
LECTROSONICS, INC.
Digital Hybrid Wireless 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 rst 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
Web:
www.lectrosonics.com
E-mail:
sales@lectrosonics.com
Telephone:
(505) 892-4501
(800) 821-1121 Toll-free
(505) 892-6243 Fax
Lectrosonics Canada:
Mailing Address:
49 Spadina Avenue,
Suite 303A
Toronto, Ontario M5V 2J1
Rio Rancho, NM
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
19
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.
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12 August 2014
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