Lectrosonics SMV9 Wireless Microphone Transmitter User Manual SMV 941 Series man indd

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INSTRUCTION MANUAL
SMV-941 Series
Super Miniature Variable Power Transmitters
With Digital Hybrid Wireless® Technology
US Patent 7,225,135
SMV-941 Single Battery Model
SMQV-941 Dual Battery Model
Digital Hybrid Wireless®
US Patent 7.225.135
Fill in for your records:
Serial Number:
Purchase Date:
Rio Rancho, NM, USA
www.lectrosonics.com
SMV Series
Introduction
The SM Series variable power transmitters are the
product of many years of engineering and experience in
professional audio markets. The unique design provides
several distinct features for professional applications:
•
Selectable output power to maximize battery life or
operating range as needed
•
Superb, compandor-free audio quality
•
Ultra-lightweight, corrosion resistant housing
•
Water resistant seals for use in damp environments
•
Programmable compatibility modes for use with a
wide variety of different receivers
The Digital Hybrid Wireless® design (US Patent
7,225,135) combines 24-bit digital audio with analog
FM resulting in a system that has the same operating
range as analog systems, the same spectral efficiency
as analog systems, the same long battery life as analog
systems, plus the excellent audio fidelity typical of pure
digital systems.
The SM Series transmitters feature the unique servo
bias input circuitry with a standard TA5M type input jack
for use with electret lavaliere mics, dynamic mics, or
line level signals. A water resistant control panel with
LCD, membrane switches and multi-color LEDs make
input gain adjustments, frequency and compatibility
mode selection quick and accurate, without having to
view the receiver. The battery compartment accepts
AA lithium or rechargeable batteries. The housings are
machined from solid aluminum billets to provide an
extremely lightweight and rugged package. A special
non-corrosive finish resists salt water exposure and
perspiration in extreme environments.
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Table of Contents
Introduction............................................................................. 2
General Technical Description.............................................. 4
Controls and Functions......................................................... 6
LCD Screen.......................................................................... 6
Power LED............................................................................ 6
Power LED Off Feature......................................................... 6
Audio Input Jack.................................................................... 6
AUDIO and FREQ Buttons.................................................... 6
UP/DOWN Arrow Buttons..................................................... 6
Battery and Battery Eliminator Installation.......................... 7
Attaching and Removing the Microphone............................ 7
Operating Instructions........................................................... 8
Power Up and Boot Sequence.............................................. 8
Power Down.......................................................................... 8
Standby Mode....................................................................... 8
Menus................................................................................... 8
Locking/Unlocking the Control Panel.................................. 10
Remote Control Operation.................................................. 10
5-Pin Input Jack Wiring........................................................ 11
Installing the Connector:..................................................... 11
Line Level Signals............................................................... 11
Microphone Cable Termination
for Non-Lectrosonics Microphones............................. 12
Microphone RF Bypassing.................................................. 13
Wiring Hookups for Different Sources............................... 14
Silver Paste on SM Series Transmitter Thumbscrews....... 15
LectroRM............................................................................... 16
Accessories for single battery models:.............................. 17
Accessories for dual battery models:................................. 17
Accessories for Both Models.............................................. 18
Specifications and Features................................................ 19
Specifications...................................................................... 19
Troubleshooting.................................................................... 20
Service and Repair............................................................... 22
Returning Units for Repair.................................................. 22
For body worn operation, this transmitter models 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 colocated or operating in conjunction with any other antenna or
transmitter.
Rio Rancho, NM
SMV Series
General Technical Description
Servo Bias Input
No Pre-Emphasis/De-Emphasis
The voltage and current requirements of the wide variety of electret microphones used in professional applications has caused confusion and compromises in the
wiring needed for wireless transmitters. To address this
problem, the unique Servo Bias input circuit provides an
automatically regulated voltage over a very wide range
of current for compatibility with all microphones.
Digital Hybrid Wireless® Technology
All wireless links suffer from channel noise to some degree, and all wireless microphone systems seek to minimize the impact of that noise on the desired signal. Conventional analog systems use compandors for enhanced
dynamic range, at the cost of subtle artifacts (typically
“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 and
resistance to interference.
Digital Hybrid systems overcome 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 that
can be accomplished only in the digital domain, even
though the inputs and outputs are analog.
Because it uses an analog FM link, the Digital Hybrid
system enjoys all the benefits of conventional FM wireless systems and it does away with the analog compandor and its artifacts.
+5V
5V
Regulator
The Digital Hybrid design results in a signal-to-noise ratio
high enough to preclude the need for conventional preemphasis (HF boost) in the transmitter and de-emphasis
(HF roll off) in the receiver. This eliminates the potential
for distortion of signals with abundant high-frequency
information.
Low Frequency Roll-Off
The low frequency roll-off can be set for a 3 dB down
point at 35, 50, 70, 100, 120 and 150 Hz to control subsonic and very low frequency audio content in the audio. The actual roll-off frequency will vary slightly depending upon the low frequency response of the microphone.
Excessive low frequency content can drive the transmitter into limiting, or in the case of high level sound systems, can even cause damage to loudspeaker systems.
The roll-off is normally adjusted by ear while listening
as the system is operating.
Input Limiter
A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more
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, a fast attack and release limiter
followed by a slow attack and release limiter. The limiter
recovers quickly from brief transients, with no audible
side effects, and also recovers slowly from sustained
high levels to keep audio distortion low while preserving
short term dynamics.
+6V
Variable 1.8 - 4v
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Signal Encoding and Pilot Tone
In addition to controlling the limiter, the DSP also encodes the digitized audio from the A/D converter and
adds an ultrasonic pilot tone to control the squelch in
the receiver. A pilot tone squelch system provides a reliable method of keeping a receiver output muted (audio
mute) even in the presence of significant interference.
When the system is operating in the hybrid mode, a different pilot tone frequency is generated for each carrier
frequency to prevent inadvertent squelch problems in
multi-channel sytems.
Microprocessor Control
A microprocessor monitors user command inputs from
the control panel buttons and numerous other internal
signals. It works intimately with the DSP to ensure the
audio is encoded according to the selected Compatibility Mode and that the correct pilot tone is added to the
encoded signal.
Battery Options and Operating Time
Switching power supplies convert regulated battery voltages to operate various circuit stages with maximum
efficiency.
The firmware “remembers” the power status when a
battery fails, so the transmitter will be turned on automatically when the battery is replaced and the previous
settings will be enabled.
Circulator/Isolator
The RF output circuit includes a one way circulator/isolator using a magnetically polarized ferrite. This device
greatly reduces RF intermodulation produced when
multiple transmitters are used in close proximity to one
another (several feet apart). The isolator also provides
additional RF output stage protection against static
shock.
Compatibility Modes
SM transmitters are designed to operate with Lectrosonics Digital Hybrid receivers and will yield the best performance when doing so, however, due to the flexibility
of digital signal processing, the transmitter can also
operate with Lectrosonics IFB receivers in the same
frequency band.
Control Panel
The control panel includes four membrane switches and
an LCD screen to adjust the operational settings. Multicolor LEDs are used to indicate audio signal levels for
accurate gain adjustment and for battery status.
Variable Power Output
This advanced feature allows the operator to optimize
the transmitter for maximum battery life, or for slightly
increased operating range. Power output is selected using the LCD in a setup mode while the RF output of the
transmitter is turned off.
Rio Rancho, NM
SMV Series
Controls and Functions
Audio Input Jack
Modulation
LEDs
LCD
Battery
Compartment
Cover Plate
UP Arrow
Antenna
Jack
Audio
Input Jack
Battery
Compartment
Thumb Screw
DOWN Arrow
PWR LED
AUDIO Button
FREQ Button
LCD Screen
The LCD is a numeric-type Liquid Crystal Display with
screens for adjusting power, frequency, audio level and
low frequency audio roll-off. The transmitter can be
powered up with or without the RF output turned on. A
countdown appears in the LCD when powering on and
off, allowing the transmitter to be turned on without RF
for adjustments, and to prevent accidentally turning it off
with momentary button presses.
The PWR LED glows green when the battery is good.
The color changes to red at a midpoint of the runtime
as the battery voltage drops. When the LED begins to
blink red, there is usually less than 30 minutes remaining with a lithium battery.
The exact point at which the LED turns red will vary with
battery brand and condition, temperature, and the output power setting. The LED is intended to simply catch
your attention, not to be an exact indicator of remaining
time. The illustration below depicts typical behavior with
a lithium battery in the single battery model at 50 mW.
Green
Voltage
The large knurled thumbscrew is used to release or
secure the Battery Compartment Cover Plate.
Modulation LEDs
Proper input gain adjustment is critical to ensure the
best audio quality. Two bicolor LEDs will glow either red
or green to accurately indicate modulation levels. The
input circuitry includes a wide range DSP controlled
limiter to prevent distortion at high input levels.
It is important to set the gain (audio level) high enough
to achieve full modulation during louder peaks in the
audio. The limiter can handle over 30 dB of level above
full modulation, so with an optimum setting, the LEDs
will flash red during use. If the LEDs never flash red, the
gain is too low. In the table below, +0 dB indicates full
modulation (-20 LED just turns red).
Red
-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
AUDIO and FREQ Buttons
The AUDIO button is used to display the audio level and
low frequency roll-off settings. The UP and DOWN arrow buttons adjust the values.
The FREQ Button displays the selected operating
frequency and toggles the LCD between displaying
the actual operating frequency in MHz and a two-digit
hexadecimal number that corresponds to the equivalent
frequency switch setting on legacy transmitters.
Varies
Blink
Pressing both buttons simultaneously enters the
standby mode and turns the unit on and off
Hours 2
A weak battery will sometimes cause the PWR LED to
glow green immediately after the transmitter is turned
on, but will soon discharge to the point where the LED
will turn red or the unit will turn off completely.
Power LED Off Feature
In normal operating mode, the UP and DOWN arrow
buttons may be used to turn the PWR LED indicators off and on. This setting does not persist through a
power cycle nor does it affect the LCD backlight.
Battery Compartment and Thumb Screw
Signal Level
Power LED
1.6
1.4
1.2
1.0
.8
The Servo Bias input circuitry accommodates virtually
every lavaliere, handheld or shotgun microphone available, plus line level signals.
UP/DOWN Arrow Buttons
The UP and DOWN arrow buttons are used to select
the values on the various setup screens and to lock out
the control panel.
Antenna
The transmitter uses a whip antenna with a flexible woven, galvanized steel mesh cable and a standard SMA
connector.
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Battery and Battery
Eliminator Installation
Note: Standard zinc-carbon batteries marked
“heavy-duty” or “long-lasting” are not adequate.
The battery status circuitry is designed for the voltage
drop over the life of lithium batteries.
To install new batteries:
1. Turn the battery cover plate thumbscrew counterclockwise a few turns until the door will rotate.
2. Insert the new batteries into the housing. Polarity is
marked on the back of the housing.
3. Align the battery cover plate and tighten the battery
cover plate thumbscrew.
Cover plate
thumbscrew
Gore-Tex® covered vent
Do Not Cover Vent
Two battery
compartments
(SMQV)
Attaching and Removing
the Microphone
The flexible sleeve over the 5-pin plug on the microphone helps prevent dust and moisture from getting into
the input jack, and provides additional strain relief. The
flange around the rim of the connector on the transmitter
creates a splash proof connection and keeps the sleeve
securely attached.
The following procedure simplifies the attachment and
removal of the microphone to assure the sleeve is
seated securely.
Align the latch on the plug and jack and insert the
connector. It is easier to attach the microphone when
the sleeve is pulled back as shown in the Step 3 photo
below.
If the sleeve is pulled
down and covering the
connector, squeeze the
end of the sleeve so you
can feel the connector
inside and press it into
the jack until it latches.
Pinch and squeeze the
sleeve near the flange
and work it down with a
kneading motion over
the flange all the way
around until it stays in
place flush with the
housing. Pull on the
connector to make sure
it is firmly latched.
Pinch and
squeeze the
sleeve on this end
to work it down
over the flange.
Polarity engraved
into housing
To install the battery eliminator, loosen the
thumbscrew completely and remove the battery
door. Insert the battery eliminator and tighten the
thumbscrew.
Install plastic cap
on dual battery
model to cover
the open battery
compartment.
Release button
To remove the connector, pull the sleeve back
to expose the black
release button. Press the
button to unlatch the
plug.
Gore - Tex Registered trademark of W. L. Gore and Associates
Rio Rancho, NM
SMV Series
Operating Instructions
Power Up and Boot Sequence
1) Ensure that good batteries are installed in the unit.
2) Simultaneously press and hold the AUDIO and
FREQ buttons until the power on boot sequence is
initiated.
The count will progress from 1
through 3 and the unit will then
power up with the RF output
turned on. During this turn on sequence, the
modulation and power LEDs all glow red, then
green, and then revert to normal operation. If the
buttons are released before the count is complete,
the unit will boot up into the standby mode (see
below).
The LCD displays the following information during
the boot sequence:
Company Name:
LECtro
Frequency Block and
Firmware Version
(rX.X):
941r1.1 (typical)
Compatibility Mode:
CP nHb (typical)
Power Level
Pr 100 (as set)
Audio:
Aud 22 (as set)
Power Down
Menus
Setup is accomplished using menus and setup screens
accessed by holding the UP and DOWN arrow buttons
at turn on, and by pressing the AUDIO and FREQ buttons when the unit is turned on.
Hold UP arrow at turn on.
Hold the UP arrow button in while pressing both AUDIO
and FREQ buttons to access the setup screens below.
It’s easier if you lay the unit on a flat surface and use
two hands to press all three buttons at the same time.
After the first screen loads, press the AUDIO button
repeatedly to switch between the settings. Press the UP
and DOWN arrow buttons for the desired selection.
After the settings are made, press both AUDIO and
FREQ buttons together to exit and turn the power off.
CP (compatibility modes)
Allows the transmitter to be used with 941 Series receivers or IFB systems in the 941 MHz band.
nHb
new hybrid mode (ETSI compliant)
IFb
Lectrosonics IFB systems
NOTE: The nHb compatibility mode is the same
as the NU HYBR mode in the SRc-941 receiver.
Pr (power output)
Can be set at 100 for slightly increased range or at 50
for longer battery life.
Initial Power Off
Timer Screen
1) Simultaneously press and hold the AUDIO and
FREQ buttons while observing that the word “Off”
appears in the LCD along with a counter.
50
50 mW output and longer battery life when
maximum range is not necessary
100
100 mW for slightly increased range
NOTE: See battery life table in the specifications
2) When the counter reaches “0”, the unit turns off.
Note: If the AUDIO and FREQ buttons are
released before the LCD goes blank at the end of
the countdown, the unit will not turn off. Instead, it
will stay energized and the display will return to the
previous screen.
Standby Mode
Standby Screen
With the power turned off,
pressing the AUDIO and
FREQ buttons briefly places
the unit in Standby Mode.
In this mode the RF output is turned off so all setup
adjustments can be made without interfering with other
systems operating in the same location. The screen
displays “rf OFF” to remind the user that the unit is not
transmitting.
bL (backlight settings)
Adjusts how long the LCD stays lit after pressing
buttons.
5 minutes
30
30 seconds
on
Stays on
StP (Frequency step size)
Sets the increments of frequency adjustment.
100
100 kHz steps
25
25 kHz steps
While the unit is in the standby mode, access the setup
screens using the AUDIO and FREQ buttons and make
adjustments using the UP and DOWN arrows.
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Hold DOWN arrow at turn on.
Hold the DOWN arrow button in while pressing both
AUDIO and FREQ buttons to access the setup screens
below. It’s easier if you lay the unit on a flat surface and
use two hands to press all three buttons at the same
time. After the first screen loads, press the AUDIO button repeatedly to switch between the settings. Press the
UP and DOWN arrow buttons for the desired selection.
After the settings are made, press both AUDIO and
FREQ buttons together to exit and turn the power off.
rc (remote control with mobile app)
Allows the transmitter to respond to remote control
“dweedle” tones from a mobile device, or from tones
generated by the Lectrosonics RM and RM2 devices.
on
Enables the remote function.
oFF
Disables the remote function.
NOTE: See page 10 for details
AUD (XX) - Adjusting Audio Level (Gain)
The control panel modulation LEDs marked -10 and -20
indicate the audio level and limiter activity. Once adjusted according to the following procedure, the transmitter’s audio level setting should not be used to control
the volume of your sound system or recorder levels.
This gain adjustment matches the transmitter gain with
the microphone’s output level, the user’s voice level and
the position of the microphone. The audio input level
(gain) should be adjusted with the unit in the Standby
Mode while observing the LEDs.
It is generally best to set the LF roll-off before adjusting the gain, since low frequency energy can affect the
input level to the transmitter.
It is desirable to to set the gain so that some limiting
occurs on louder peaks. The limiter is very transparent
over a 43 dB range, and its effect is not audible until the
system is close to overload. In other words, don’t be shy
about turning up the gain.
It is actually a good idea to turn the gain up to maximum and listen for distortion or compression to get a
feel for how much headroom is available.
PbAc (auto power restore)
Signal Level
Sets the transmitter to automatically turn back on and
return to the previous state after a battery change or
power interruption when it is in the operating mode.
This is convenient when the transmitter is powered by
an external source.
Restores power automatically
Does not restore power automatically
AUDIO Button
When the unit is turned on in either the Standby or
Operating Mode, pressing the AUDIO button repeatedly
switches between the available settings.
•
LF (XX) adjusts the low frequency roll-off of the
audio signal.
•
AUD (XX) adjusts the input gain
LF (XX) - Adjusting the Low Frequency Roll-off
Repeatedly press the AUDIO button until the LF rolloff adjustment screen appears. Then press and hold
the AUDIO button while selecting the desired roll-off
frequency with the UP and DOWN arrows.
The roll-off frequency can be set to 35, 50, 70, 100, 120
and 150 Hz.
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
Note: If several different people will be using the transmitter
and there is not time to make the adjustment for each individual, adjust it for the loudest voice.
1) With the transmitter in the Standby Mode, plug in
the microphone and make sure the connector is
firmly seated.
Warning: If the wireless system is powered
up while connected to a live sound system, be
careful to turn the sound system level down
first or severe feedback can occur.
2) Position the microphone in the location where it will
be used in actual operation.
3) Observe the modulation LEDs while speaking or
singing into the microphone at the same voice level
that will be used during operation. While holding
the AUDIO button, press the UP or DOWN arrow
buttons until the both the -20 and -10 LEDs glow
green, with the -20 LED flickering red during louder
peaks in the audio. This will maximize the signal to
noise ratio of the system with full modulation.
4) If the unit was set up in Standby Mode, it will be
necessary to turn the transmitter off, then power it
up again in normal operation so the RF output will
be on. Then the other components in the sound or
recording system can be adjusted.
SMV Series
Remote Control Operation
FREQ Button
The operating frequency can be adjusted according to
the frequency in MHz or a two-digit hexadecimal code.
Press the button repeatedly to switch between the two
displays. The display switches when the button is first
pushed; push and hold the button in the desired mode
and use the UP and DOWN arrow buttons to make the
adjustment.
In this example, the same frequency is displayed in
MHz and the equivalent hex code.
The hex code is a hexadecimal sequence that progresses upward from lowest to highest frequency using
the numerals and letters from 0 through F. When the
frequency is on a 100 kHz step, the hex code is only
two digits, as shown above, which is easy to remember.
When the step size is set to 25 kHz, additional characters are used to denote the exact frequency with four
characters.
Locking/Unlocking the Control Panel
Simultaneously pressing and
holding both the UP and
DOWN arrow buttons during
normal operation starts the
Lock timer. The timer starts at
three and counts down to zero.
When the timer reaches zero, the buttons on the control
panel are locked.
The transmitter can be
controlled by signals from
audio “dweedle” tones
generated by a mobile phone,
or with the Lectrosonics RM
and RM2 devices.
Remote Control Screens
The remote function is enabled in the UP arrow power
on options (see previous section). If a remote control
signal is detected but the function is no enabled, the
message rc oFF will be displayed briefly on the transmitter’s LCD.
Remote functions available are:
•
Tx Input Gain
•
Sleep/Unsleep
•
Lock/Unlock
•
Frequency
•
Tuning in 25 kHz steps
•
Changing the low frequency roll-off setting
•
Turning on/off the PWR and Audio LEDs
•
Input gain functions
In sleep mode, the transmitter uses about 20% of the
normal amount of battery drain. Sleep mode can only be
invoked with the remote control, and can only be revoked
with the remote control or by removing the battery. When
in the sleep mode, the PWR LED blinks green every few
seconds to indicate that the transmitter is asleep and not
turned off.
With the controls locked, the AUDIO and FREQ buttons
can still be used to display current settings. Any attempt
to change a setting by pressing either the UP or DOWN
arrow button will result in an on-screen Loc reminder
that the controls are locked. Remove the batteries to
unlock the control panel.
Important: Once the transmitter is locked, it
cannot be unlocked or powered off using the
buttons. The only ways to unlock a locked
transmitter are to remove the battery or unlock it
via the RM remote control.
10
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
5-Pin Input Jack Wiring
Installing the Connector:
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.
1) If necessary, remove old connector from microphone
cable.
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
3) If necessary, slide the 1/8-inch black shrink tubing
onto the mircrophone cable. (This tubing is needed
for some cables to ensure the cable fits snugly in the
rubber boot.)
500 Ohm
Servo Bias
Pin 4 to Pin 1 = 0 V
Pin 4 Open = 2 V
Pin 4 to Pin 2 = 4 V
100 Ohm
GND
BIAS
MIC
BIAS SELECT
LINE IN
30uF
200 Ohm
30uF
1k
+5 VDC
100 Ohm
To Virtual Ground
Audio Amplifier
To Limiter Control
2.7K
10k
3.3uF
SM Equivalent Input Circuit Wiring
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.
PIN 3
Low impedance microphone level input for
dynamic microphones. Also accepts hand-held
electret microphones provided the microphone
has its own built-in battery.
PIN 4
2) Slide Rubber Boot onto microphone cable with the
large end facing away from the microphone. (See illustration above.)
4) Use the resistors and connector included with this kit
to configure the TA5F to your particular microphone.
(See Wiring Diagrams below.) A length of .065 OD
clear tubing is included if insulating the resistor leads
or shield wire is necessary. (Remove rubber strain
relief from connector backshell by pulling it out of the
backshell.)
5) Slide the Strain Relief over the TA5F Insert and
crimp as shown to the right. Then insert the TA5F
Insert and Strain Relief in the TA5F Latchlock. Screw
the TA5F Flex Relief onto the TA5F Latchlock.
6) If needed, position and shrink the 1/8-inch shrink tubing on the microphone cable, then slide the Rubber
Boot down over the TA5F connector.
Line Level Signals
The normal hookup for line level signals is: Signal Hot
to pin 5, Signal Gnd to pin 1 and 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.
Bias voltage selector for Pin 3. Pin 3 voltage (0, 2
or 4 volts) depends on Pin 4 connection.
Pin 4 tied to Pin 1: 0 V
Pin 4 Open:
2V
Pin 4 to Pin 2:
4V
PIN 5
High impedance, line level input for tape decks,
mixer outputs, musical instruments, etc.
SMKITTA5 Connector kit for SMV series
transmitters, 5-pin TA5F plug with sleeve
Insulator
Strain Relief
Insert
TA5F Backshell
(Strain Relief removed)
TA5F Latchlock
Rio Rancho, NM
TA5F Backshell
with Strain Relief
Remove strain relief if
using dust boot
Dust Boot (P/N 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 fit over the assembly.
11
SMV Series
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
fingers to
contact the
shield
12
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 than what is shown here.
LECTROSONICS, INC.
Super-Minature 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
the 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 (see
schematic diagram).
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.
2 WIRE MIC
3 WIRE MIC
Preferred locations for bypass capacitors
SHIELD
SHIELD
AUDIO
AUDIO
CAPSULE
TA5F
CONNECTOR
BIAS
CAPSULE
Alternate locations for bypass capacitors
TA5F
CONNECTOR
Install the capacitors as follows: 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.
Rio Rancho, NM
13
SMV Series
Wiring Hookups 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/faqdb
Follow the instructions to search by model number or
other search options.
Compatible Wiring for Both Servo Bias Inputs and Earlier Transmitters:
Fig. 1
Fig. 7
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
BALANCED AND FLOATING LINE LEVEL SIGNALS
PIN
SHIELD
1.5 k
AUDIO
3.3 k
Compatible wiring for microphones such as
Countryman E6 headworn and B6 lavaliere.
Also see Fig. 9
TA5F
PLUG
XLR JACK
Fig. 2
4 VOLT POSITIVE BIAS 2-WIRE ELECTRET
TA5F
PLUG
*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
Most common type of wiring for
lavaliere mics. This is the wiring for
the Lectrosonics M152 lavaliere microphone.
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).
Fig. 3 - 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.
Same as DPA adapter DAD3056
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 - 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)
Servo Bias was introduced in 2005 and all transmitters have been built with this feature since 2007.
PIN
TA5F
PLUG
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
SOURCE (AUDIO)
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. 6
LO-Z MICROPHONE LEVEL SIGNALS
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
Fig. 11
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET
NOTE: This servo bias wiring is not compatible with earlier
versions of Lectrosonics transmitters. Check with the factory
to confirm which models can use this wiring.
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Silver Paste on SM Series
Transmitter Thumbscrews
Silver paste is applied to thumbscrew threads on new
units at the factory to improve the electrical connection
from the battery compartment through the housing on
any SM Series transmitter. This applies to the standard
battery door and the battery eliminator.
Threads
provide
electrical
contact
Simply hold the cloth around the threads and turn the
thumbscrew. Move to a new spot on the cloth and do it
again. Do this until the cloth remains clean. Now, clean
the threads in the case by using a dry cotton swab (Qtip) or equivalent. Again, clean the case threads until a
fresh cotton swab comes away clean.
Open the vial, and transfer a pinhead speck of silver
paste to the second thread from the end of the thumbscrew. A easy way to pickup a speck of paste is to
partially unfold a paper clip and use the end of the wire
to acquire a tiny bit of paste. A toothpick will also work.
An amount that covers the end of the wire is sufficient.
Apply paste to second thread
from end of thumbscrew
The small vial contains a tiny amount (25 mg) of silver
conductive paste. A small speck of this paste will improve the conductivity between the battery cover plate
thumbscrew and the case of the transmitter.
The tiny vial is about
1/2 inch tall and
contains 25 mg of
silver paste.
It is not necessary to spread the paste more than a little
bit on the thread as the paste will spread itself every
time the thumbscrew is screwed in and out of the case
during battery changes.
Do not apply the paste to any other surfaces. The cover
plate itself can be cleaned with a clean cloth by rubbing
the slightly raised rings on the plate where it contacts
the battery terminal. All you want to do is to remove any
oils or dirt on the rings. Do not abrade these surfaces
with a harsh material such as a pencil eraser, emery
paper, etc., as this will remove the conductive nickel
plating and expose the underlying aluminum, which is a
poor contact conductor.
With improved conductivity (lower resistance) more of
the battery voltage can get to the internal power supplies causing reduced current drain and longer battery
life. Though the amount seems very small, it is enough
for years of use. It is, in fact, 25 times the amount that
we use on the thumbscrews at the factory.
To apply the silver paste, first completely remove the
cover plate from the SM housing by backing the thumbscrew completely out of the case. Use a clean, soft
cloth to clean the threads of the thumbscrew.
NOTE: DO NOT use alcohol or a liquid cleaner.
Rio Rancho, NM
15
SMV Series
LectroRM
Android
By New Endian LLC
LectroRM is a mobile application for iOS and Android
operating systems. Its purpose is to remotely control
Lectrosonics transmitters, including:
• SM Series
• WM
• L Series
The app remotely changes settings on the transmitter through the use of encoded audio tones, which
when received by the attached microphone, will alter
the configured setting. The app was released by New
Endian, LLC in September 2011. The app is available
for download and sells for about $20 on the Apple App
Store and Google Play Store.
LectroRM’s remote control mechanism is the use of
an audio sequence of tones (dweedles) that are interpreted by the transmitter as a configuration change. The
settings available in LectroRM are:
• Audio Input Gain
• Frequency
The Android version keeps all settings on the same
page and allows the user to toggle between the activation buttons for each setting. The activation button must
be long pressed to activate. The Android version also
allows users to keep a configurable list of full sets of
settings.
Activation
For a transmitter to respond to remote control audio
tones, the transmitter must meet certain requirements:
•
The transmitter must not be turned off; it can however be in sleep mode.
•
The transmitter must have a firmware version that
includes the remote control functions.
•
The remote control mode must be enabled in the
setup screen.
•
The transmitter microphone must be within range.
• Sleep/Unsleep
• Lock Mode
• Power Output
• Low Frequency Roll-off
• LEDs On/Off
User Interface
The user interface involves selecting the audio sequence related to the desired change. Each version has
an interface for selecting the desired setting and the
desired option for that setting. Each version also has a
mechanism to prevent accidental activation of the tone.
Please be aware this app is not a Lectrosonics
product. It is privately owned and operated by
New Endian LLC, www.newendian.com.
iOS
The iPhone version keeps each available setting on a
separate page with the list of options for that setting.
On iOS, the “Activate” toggle switch must be enabled to
show the button which will then activate the audio. The
iOS version’s default orientation is upside-down but can
be configured to orient right-side up. The purpose for
this is to orient the device’s speaker, which is at the bottom of the device, closer to the transmitter microphone.
16
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Accessories for single
battery models:
Accessories for dual
battery models:
PSM Leather pouch with
integrated belt clip
PSMD Leather pouch with
integrated belt clip
SMBCUPSL
Spring-loaded
machined aluminum clip for SMV;
antenna extending
upward
SMBCDNSL Springloaded, machined
aluminum clip for SMV;
antenna extending
downward
SMBCDN Wire belt
clip for SMV transmitters; antenna
extending downward
SMDBCSL Springloaded machined
aluminum clip for
SMQV; fits for antenna extending upward
or downward
SMDBC Wire belt
clip for SMQV transmitters
35924 Thermal insulating pad for SMV
and SMQV; adhesive
backing
SMBCUP Machined,
wire belt clip for SMV
transmitters; antenna
extending up
Rio Rancho, NM
17
SMV Series
Accessories for Both
Models
SMBATELIM External power adapter (battery eliminator) for all SM Series transmitters. 6 to 36 volt external
sources. Handles up to 1 amp consumption. Protected
against shorts and reverse polarity.
To install the battery eliminator, loosen the thumbscrew
completely and remove the battery door. Insert the battery eliminator and tighten the thumbscrew.
SMKITTA5 Microphone connector kit with watertight
sleeve for all SM Series transmitters.
AMM944 Whip antenna for 941 MHz transmitters
18
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
Specifications and Features
SMQV model
SMV model
The battery door rotates
to open and close on the
transmitters. A knurled knob
is tightened to maintain pressure on the battery contacts.
O-rings around the battery
contacts block moisture and
dust from entering the battery
compartments.
Specifications
Operating Frequency Range:
Channel Spacing:
Frequency selection:
RF Power output:
Pilot tone:
Frequency stability:
Spurious radiation:
Equivalent input noise:
Input level:
Dynamic mic:
Electret lavaliere mic:
Line level:
Input impedance:
Dynamic mic:
Electret lavaliere:
Line level:
941.525 - 951.975 MHz
952.875 - 956.225 MHz
956.475 - 959.825 MHz
Selectable; 25 or 100 kHz
Control panel membrane switches
Switchable; 50 or 100 mW
27 to 32 kHz; 3 kHz deviation
(Digital Hybrid mode)
± 0.002%
Compliant with ETSI EN300 422-1 v1.4.2
–125 dBV, A-weighted
0.5 mV to 50 mV before limiting
Greater than 1 V with limiting
1.7 uA to 170 uA before limiting.
Greater than 5000 uA (5 mA) with limiting.
17 mV to 1.7 V before limiting.
Greater than 50 V with limiting.
Audio Input Jack:
Antenna:
Batteries:
Battery Life:
Switchcraft 5-pin locking (TA5F)
Flexible, unbreakable steel cable.
1.5 Volt AA lithium
Weight:		
Overall Dimensions:
Emission Designator:
SMV-941 50 mW (1 AA):
7.25 hrs
SMV-941 100 mW (1 AA):
5.5 hrs
SMQV-941 50 mW (2 AA):
14.5 hrs
SMQV-941 100 mW (2 AA):
14 hrs
SMV: 2.7 oz.. (75.9 grams) with lithium battery
SMQV 3.7 oz.. (105 grams) with lithium batteries
SMV: 2.3 x 1.8 x 0.64 inches (58 x 46 x 16 mm)
(not including microphone)
SMQV: 2.3 x 2.4 x 0.64 inches (58 x 60 x 16 mm
(not including microphone)
180KF3E
Specifications subject to change without notice.
300 Ohms
Input is virtual ground with servo adjusted
constant current bias
2.7 k Ohms
Input limiter:
Soft limiter, 30 dB range
Bias voltages:
•
Fixed 5 V at up to 5 mA
•
Selectable 2 V or 4 V servo bias
for electret lavaliere
Input gain control range:
44 dB in 1 dB steps
Modulation indicators:
Dual bicolor LEDs indicate modulation of
–20, -10, 0, +10 dB referenced to full modulation.
Controls:
Control panel with LCD and four
membrane switches.
Audio Performance (overall system):
Frequency Response:		 35 Hz to 20 kHz, +/-1 dB
Low frequency roll-off:		 Adjustable from 35 to 150 Hz
THD:			 0.2% (typ.) 100 Hz to 20 kHz
System Dynamic Range:
SmartNR
no limiting
w/limiting
Note: The dual envelope “soft”
OFF
103.5
108.0
limiter provides exceptionally
NORMAL
107.0
111.5
good handling of transients
using variable attack
and
FULL
108.5
113.0
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.
Rio Rancho, NM
19
SMV Series
Troubleshooting
Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you
follow these steps in the sequence listed.
SYMPTOM
POSSIBLE CAUSE
TRANSMITTER PWR LED OFF
1) Battery is inserted backwards or dead.
2) Transmitter not powered up.
TRANSMITTER PWR LED BLINKS GREEN EVERY FEW SECONDS, TRANSMITTER
DOES NOT RESPOND OTHERWISE
1) Transmitter has been put to sleep by the remote control.
Either use the remote control to wake it up or remove
and reinsert the transmitter’s battery.
AUDIO LEVEL LEDs NOT LIGHTING
1)
2)
3)
4)
RECEIVER RF INDICATOR OFF
1)
2)
3)
4)
5)
6)
Gain control set to low or at minimum.
Batteries are dead or installed backwards. Check PWR LED.
Mic capsule is damaged or malfunctioning.
Mic cable damaged or mis-wired.
Transmitter not turned on, or is in Standby Mode.
Transmitter battery is dead.
Receiver antenna missing or improperly positioned.
Transmitter and receiver not on same frequency.
Check switches/display on transmitter and receiver.
Operating range is too great.
Defective transmitter or receiver antenna.
NO SOUND (OR LOW SOUND LEVEL), RECEIVER INDICATES PROPER AUDIO MODULATION
1) Receiver output level set too low.
2) Receiver output disconnected, or cable defective or mis-wired.
3) Sound system or recorder input is turned down.
DISTORTED SOUND
1)
2)
3)
4)
Transmitter gain (audio level) is far too high. Check audio level
LEDs and receiver audio levels during use.
Receiver output 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. (Use the receiver’s Tone
function to check level.)
Transmitter is not set to same frequency as receiver. Check that
operating frequency on receiver and transmitter match.
Receiver/Transmitter Compatibility Mode mismatched.
EXCESSIVE FEEDBACK
1)
2)
3)
Transmitter gain (audio level) too high. Check gain adjustment
and/or reduce receiver output level.
Talent standing too close to speaker system.
Mic is too far from user’s mouth.
20
LECTROSONICS, INC.
Super-Minature Belt Pack Transmitter
SYMPTOM
HISS AND NOISE -- AUDIBLE DROPOUTS
1)
2)
3)
4)
POSSIBLE CAUSE
Transmitter gain (audio level) far too low.
Defective transmitter or receiver antenna.
Operating range too great.
Signal interference. Turn off transmitter. If receiver’s signal
strength indicator does not drop to nearly zero, this indicates an
interfering signal may be the problem.
Try a different operating frequency.
“Loc” APPEARS IN DISPLAY WHEN ANY BUTTON IS PRESSED
1) Control Panel is locked.
2) Unlock the control panel with remote or removing and replacing the
		batteries.
“Hold” APPEARS IN DISPLAY WHEN ARROW BUTTONS ARE PRESSED
1) Reminder that it is necessary to hold down the AUDIO or FREQ
button to make adjustments to the audio gain or frequency settings.
“PLL” APPEARS IN DISPLAY
1) Indication that the PLL is not locked. This is a serious condition
that requires factory repair. It may be possible to operate on
another frequency far removed from the one that was selected
when PLL appeared on the display.
TRANSMITTER WON’T RESPOND TO REMOTE CONTROL
1) If LCD blinks “rc oFF”, transmitter has not been configured
to respond to the remote control.
2) If LCD blinks “- - - - - -”, transmitter is already set as
requested by the remote control.
3) If transmitter does not respond at all, try moving the remote
control closer to the microphone or increasing the remote control’s
loudness setting, or increasing the input gain on the transmitter.
4) Make sure volume of the remote device and proximity of
microphone are sufficient to engage transmitter.
5) Make sure transmitter is not in Sleep mode.
Rio Rancho, NM
21
SMV Series
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:		
Shipping address:		
Lectrosonics, Inc.		
Lectrosonics, Inc.		
PO Box 15900		
581 Laser Rd.			
Rio Rancho, NM 87174
Rio Rancho, NM 87124		
USA				USA
Telephone:
(505) 892-4501
(800) 821-1121 Toll-free
(505) 892-6243 Fax
Web:				E-mail:
www.lectrosonics.com		
sales@lectrosonics.com
Lectrosonics Canada:
Mailing Address:		Telephone:			E-mail:
720 Spadina Avenue,		
(416) 596-2202			
Sales: colinb@lectrosonics.com
Suite 600			
(877) 753-2876 Toll-free		
Service: joeb@lectrosonics.com
Toronto, Ontario M5S 2T9
(877-7LECTRO)
				(416) 596-6648 Fax
22
LECTROSONICS, INC.
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
8 November 2017

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