FCC ID: DBZLMBB1A Wireless Microphone Transmitter

INSTRUCTION MANUAL LMb Synthesized UHF Belt-Pack Transmitter Featuring Digital Hybrid Wireless Technology US Patent 7,225,135 Quick Start Steps 1) Install good batteries and turn power on (see pages 5 and 6). 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 sig-

nals are present (see receiver manual). Fill in for your records:

Serial Number:

Purchase Date:

Rio Rancho, NM, USA www.lectrosonics.com Table of Contents Quick Start Steps ..................................................................................................................................................................................1 Introduction .............................................................................................................................................................................................3 About Digital Hybrid Wireless ...............................................................................................................................................................3 Frequency Agility...................................................................................................................................................................................3 Servo Bias Input and Wiring .................................................................................................................................................................3 DSP-controlled Input Limiter .................................................................................................................................................................3 LMb Block Diagram ...............................................................................................................................................................................4 No Pre-Emphasis/De-Emphasis ...........................................................................................................................................................4 Pilot Tone Squelch ................................................................................................................................................................................4 Battery Installation .................................................................................................................................................................................5 Belt Clips .................................................................................................................................................................................................5 Operating Instructions ...........................................................................................................................................................................6 Battery Status LED Indicators ...............................................................................................................................................................6 Powering On in Operating Mode ...........................................................................................................................................................6 Powering On in Standby Mode .............................................................................................................................................................7 Powering Off .........................................................................................................................................................................................7 Navigating Menus .................................................................................................................................................................................7 Locking/Unlocking Changes to Settings................................................................................................................................................7 Power Menu ..........................................................................................................................................................................................7 Selecting Programmable Switch Functions...........................................................................................................................................8 Main Window Indicators ........................................................................................................................................................................8 Selecting the Compatibility (Compat) Mode ..........................................................................................................................................9 Connecting the Signal Source ..............................................................................................................................................................9 Adjusting the Input Gain ........................................................................................................................................................................9 Selecting Step Size ...............................................................................................................................................................................9 Selecting Frequency ...........................................................................................................................................................................10 Selecting Frequency Using Two Buttons .............................................................................................................................................10 Helpful Features on Receivers ............................................................................................................................................................10 About Overlapping Frequency Bands .................................................................................................................................................10 Selecting Audio Polarity (Phase) .........................................................................................................................................................11 Adjusting LCD Backlight .....................................................................................................................................................................11 RF ON/OFF on the Menu ....................................................................................................................................................................11 Selecting Battery Type ........................................................................................................................................................................11 Restoring Default Settings ..................................................................................................................................................................11 IR (infrared) Sync ................................................................................................................................................................................11 5-Pin Input Jack Wiring ........................................................................................................................................................................12 Microphone Cable Terminationfor Non-Lectrosonics Microphones ................................................................................................13 Input Jack Wiring for Different Sources .............................................................................................................................................14 Microphone RF Bypassing ..................................................................................................................................................................15 Line Level Signals ...............................................................................................................................................................................15 Wiring Diagram for MI39A Instrument Cable ......................................................................................................................................15 Accessories ..........................................................................................................................................................................................16 Troubleshooting ....................................................................................................................................................................................17 Specifications and Features ................................................................................................................................................................18 Service and Repair ...............................................................................................................................................................................19 Returning Units for Repair ..................................................................................................................................................................19 2 LMbLECTROSONICS, INC. Introduction The design of the LMb transmitter delivers the ad-

vanced technology and features of Digital Hybrid Wire-

less in a Lectrosonics belt-pack transmitter at a modest cost. Digital Hybrid Wireless combines a 24-bit digital audio chain with an analog FM radio link to eliminate a compandor and its artifacts, yet preserve the extended operating range and noise rejection of the finest analog wireless systems. Along with providing peerless audio quality with wide frequency response and dynamic range in Nu Hybrid mode, the technology used in the LMb includes compatibility modes for Lectrosonics Mode 3 and IFB receivers. 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 instru-

ment 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, perma-

nently attached 1/4 wavelength design made of flexible galvanized steel cable. The switching power supplies in the LMb provide con-

stant voltages to the transmitter circuits from the begin-

ning to the end of battery life, with output power remain-

ing constant over the life of the battery. The input ampli-

fier 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 informa-

tion in digital form, at the cost of some combination of power, bandwidth, operating range and resistance to interference. The Lectrosonics Digital Hybrid Wireless system over-

comes 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 informa-

tion 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 in-

creased operating range and weak signal conditions, however, the Digital Hybrid Wireles system handles this situation elegantly with rarely audible audio arti-

facts as the receiver approaches its squelch threshold. In contrast, a purely digital system tends to drop the audio suddenly during brief dropouts and weak signal conditions. The Digital Hybrid Wireless system simply encodes the signal to use a noisy channel as efficiently and robustly as possible, yielding audio performance that rivals that of purely digital systems, without the power, noise and bandwidth problems inherent in digital transmission. Because it uses an analog FM link, Digital Hybrid Wireless enjoys all the benefits of conventional FM wireless systems, such as excellent range, efficient use of RF spectrum, and long battery life. Frequency Agility Frequency selection is provided in 100 kHz or 25 kHz steps. Frequencies are displayed on the LCD in MHz and in a hex code used with earlier Lectrosonics equip-

ment. Servo Bias Input and Wiring The LMb input preamp is a unique design that delivers audible improvements over conventional transmitter inputs. The transmitters are easier to use and much harder to overload. It is not necessary to introduce pads on some mics to prevent overload of the input stage, divide the bias voltage down for some low voltage mics, or reduce the limiter range at minimum gain settings. Two different microphone wiring schemes are available to simplify and standardize the configuration. Simpli-

fied 2-wire and 3-wire configurations provide several arrangements designed for use only with servo bias inputs to take full advantage of the preamp circuitry. Other wiring schemes are compatible with Servo Bias and conventional inputs. A line level input wiring provides an extended frequency response with an LF roll-off at 35 Hz for use with instru-

ments and line level signal sources. DSP-controlled Input Limiter The transmitter employs a digitally-controlled analog audio limiter prior to the analog-to-digital converter. The limiter has a range greater than 30 dB for excellent overload protection. A dual release envelope makes the limiter acoustically transparent while maintaining low distortion. It can be thought of as two limiters in series, connected as a fast attack and release limiter followed by a slow attack and release limiter. The limiter recovers quickly from brief transients, so that its action is hidden from the listener, but recovers slowly from sustained high levels to keep audio distortion low and preserve short term dynamic changes in the audio. 3 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM No Pre-Emphasis/De-Emphasis Because the signal to noise ratio of the Digital Hybrid Wireless system is so high, there is no need for con-

ventional pre-emphasis (HF boost) in the transmitter and de-emphasis (HF roll off) in the receiver. Thus, the potential distortion problems associated with pre-em-

phasis and de-emphasis are eliminated. Pilot Tone Squelch The squelch system in a receiver is a method of muting the audio when the RF signal conditions are too poor to produce usable audio. While not all squelch systems work the same way, the goal is always the same: to discard noise and unusable audio. The Digital Hybrid Wireless system employs a DSP-

generated supersonic tone (pilot tone), using it as a kind of signature, so the receiver can mute even strong signals that arent from the appropriate transmitter. The pilot tone also helps to ensure that the receiver is quiet when the transmitter is turned on and off. 256 different pilot tones provide reliable operation in multi-channel wireless systems. A different tone is generated every 100 kHz across the tuning range of the system, so that a tone is not repeated until it is 25.6 MHz above or below the previous one. LMb Block Diagram

+5V Input Jack Servo Bias Supply Bias Voltage 0, 2 or 4V Input Preamp HI/Lo Pass Filter AUDIO A-D Converter D-A Converter Gain Adj I2S I2S Shunt Limiter Limiter Control l k c o C P S D Microprocessor Bicolor Modulation LEDs Encoded Audio and Pilot Tone

(2) AA Batteries Buffer Amp and Filter Switching Power Supply Tricolor Power LED AUDIO Oscillator Micro Clock Keypad LMb Transmitter Oscillator PLL Ref Phase Locked Loop Voltage Controlled Oscillator Filters

(3) Control Driver Final Amplifier 4 LMbLECTROSONICS, INC. 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 differ-

ence in voltage drop between alkaline and lithium bat-

teries across their usable life, so its important to select the correct battery type in the menu. Because rechargeable batteries run down quite abrupt-

ly, 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 Lectroson-

ics Digital Hybrid Wireless receivers. Push outward on the Battery Compartment Door and lift it to open. The battery contacts can be cleaned with alcohol and a cotton swab, or a clean pencil eraser. Be sure not to leave any remnants of the cotton swab or eraser crumbs inside the compartment. Series connection plate Contact springs Belt Clips The wire belt clip may be removed by pulling the ends out of the holes in the sides of the case. Use pliers to grasp the wire and avoid scratching the surface of the housing. Pliers also help when installing the clip. An optional spring-loaded, hinged belt clip (model num-

ber BCSLEBN) is also available. This clip is attached by removing the plastic hole cap on the back of the hous-

ing and mounting the clip with the supplied screw. Insert the batteries according to the markings inside the battery compartment. If the batteries are inserted incorrectly, the door will close but the unit will not operate. 5 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM Operating Instructions IR FCC ID: DBZLMBA1A Lectrosonics, Inc. Made in U.S.A. 470.100 - 537.575 MHz S/N XXXXX Model: LMBA1 IC: 8024A-LMBA1 IR Sync Port Battery Status LED RF Indicator Battery icon

* The DOWN arrow will turn the LEDS off and the UP arrow will turn them on when the Main Window (no menu) is displayed. IR PORT 5 A 623.400

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-20 0 Menu navigation buttons*

Input Jack Power/Function LED T A B Programmable Switch 0 1

-

0 2

-

Modulation LEDs Belt clip mounting hole Power Button Slide door outward to open battery door and access batteries Move switch toward the white dot to turn it on T A B 0 1

-

0 2

-

Battery Status LED Indicators Alkaline, lithium or rechargeable batteries can be used to power the transmitter. The type of batteries in use are selectable in a menu on the LCD. When alkaline or lithium batteries are being used, the LED labeled BATT on the keypad glows green when the batteries are good. The color changes to red when the they are nearing the end of life. When the LED begins to blink red, there will be only a few minutes remaining. The exact point at which the LEDs turn red will vary with battery brand and condition, temperature and power consumption. The LEDs are intended to simply catch your attention, not to be an exact indicator of remaining time. A weak battery will sometimes cause the LEDs to glow green immediately after the transmitter is turned on, but it will soon discharge to the point where the LED will turn red or the unit will turn off completely. Rechargeable batteries give little or no warning when they are depleted. If you wish to use these batteries in the transmitter, you will need to manually keep track of the operating time to prevent interruptions caused by dead batteries. Many Lectrosonics receivers have a timer function to keep track of battery runtime. The Power/Function LED on the top panel will mirror the keypad LED unless the programmable switch is set to the Mute or Talkback mode, and the switch is turned on. 6 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 until a counter on the LCD progresses from 1 through 3, followed by a display of the model, firmware version, frequency band and compatibility mode. for several seconds Hold for Rf On

...3 LMB V6.00 Band A1 Nu Hybrid b 19 5 1 494.500

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-20 0 When you release the button, the unit will be operation-

al with the RF output turned on and the Main Window displayed. Only the second and third screens will ap-

pear when the programmable function switch is used to turn on the power. LMbLECTROSONICS, INC. Powering On in Standby Mode

, releasing it before A brief press of the Power Button the counter has reached 3, will turn the unit on with the RF output turned off. In this Standby Mode, the menus can be browsed to make settings and adjustments with-

out the risk of interfering with other wireless systems nearby. Hold for Rf On

...1 Release Power Button before the counter reaches 3 to enter standby mode RF indicator blinks b 19 5 1 494.500

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-20 0 After settings and adjustments are made, press the power button again to turn the unit off. NOTE: Also see the section entitled Power Menu for the AutoOn feature. Powering Off Powering O . 1 From any screen, power can be turned off by selecting Pwr Off in the power menu or holding the Power Button countdown, EXCEPT if the top panel switch is configured for this function. If the power button is released, or in and waiting for the the top panel switch is turned back on again before the countdown is completed, the unit will remain turned on and the LCD will return to the same screen or menu that was displayed previously. NOTE: When the top panel switch is configured as a power switch, that is the only way to turn the unit off. Navigating Menus The LCD and keypad interface make it easy to browse the menus and make the selections for the setup the user needs. When the unit is powered up in either the operating or the standby mode, press MENU/SEL on the keypad to enter a menu structure on the LCD. Use the Then press the MENU/SEL button to enter the menu. arrow buttons to select the menu item. and Gain Freq. ProgSw Compat Gain 25

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-20 0 The prompt in the upper right corner may display one or both arrows, depending upon what adjustment can be made. If the changes are locked, a small padlock symbol will appear. Locking/Unlocking Changes to Settings Changes to the settings can be locked. StepSiz Phase Locked Backlit Locked?

Gain 25 No Yes

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-20 0 A small padlock symbol will appear on adjustment screens when changes have been locked. When changes are locked, several controls and actions can still be used:

Settings can still be unlocked Menus can still be browsed Programmable switch still works Power can still be turned off by using the power menu or removing the batteries. Power Menu Pressing the power button when the unit is turned on will display a menu with several options:

Resume - returns to the previous mode and screen Pwr Off - turns the unit off irrevocably Rf On? - enters a screen to enable the operating or standby modes AutoOn? - allows the unit to automatically turn back on after a power failure or when fresh batter-

ies are installed (works in the operating mode only) Backlit - adjusts the duration of the LCD back light to 30 seconds or 5 minutes, or to remain on LED Off - turns the LEDs on (Normal) or off (Dark) About - displays the installed firmware version. 7 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM Selecting Programmable Switch Functions The programmable switch on the top panel can be con-

figured using the menu to provide several functions:

Power - turns the power on and off Mute - mutes the audio when switched on TalkBk (talkback) - redirects the audio to a different output channel on the receiver (with receivers that offer this function)

(none) - disables the switch Gain Freq. ProgSw Compat ProgSw ProgSw Power Mute ProgSw ProgSw TalkBk

(none) and Use the arrow buttons to select the desired function or disable the switch NOTE: The programmable switch will continue to operate whether or not keypad changes are locked. Main Window Indicators The Main Window displays the band number, Standby or Operating mode, operating frequency, audio level, battery status and programmable switch function. When the frequency step size is set at 100 kHz, the LCD will look like the following. Band number Operating mode Frequency

(hex setting) Frequency (MHz) b 19 51 MUTE 494.500

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-20 0 Battery status Programmable switch function Audio level When the frequency step size is set to 25 kHz, the hex number is smaller and may include a fraction. Fraction Note that the frequency has increased by 25 kHz from the upper example. 1 b 19 451 494.525 MUTE

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-20 0 1/4 = .025 MHz 1/2 = .050 MHz 3/4 = .075 MHz 8 Changing the step size never changes the frequency. It only changes the way the user interface works. If the frequency is set to a fractional increment between even 100 kHz steps and the step size is changed to 100 kHz, the hex code will be replaced by two asterisks on the main screen and the frequency screen. Frequency set to fractional 25 kHz step, but step size changed to 100 kHz. b 19 MUTE 494.525 Freq. b 19

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-20 0 494.525 If the programmable switch function is set for Mute, the Main Window will indicate that the function is enabled. Mute function enabled but not active b 19 51 MUTE 494.500

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-20 0 When the switch is turned on, the mute icon appear-

ance will change, the word MUTE will blink at the bot-

tom 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 T A B 0 1

-

0 2

-

If the programmable switch function is set for Talkback, the Main Window will indicate that the function is en-

abled but not active. b 19 TB 51 494.500

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-20 0 Talkback function is enabled but not active When the programmable switch is turned on, the talk-

back icon appearance will change and the power/func-

tion LED will glow blue. b 19 TB 51 494.500

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-20 0 The TB icon will change when Talkback is active Top Panel LED will glow blue when Talkback is active T A B 0 1

-

0 2

-

LMbLECTROSONICS, INC. Selecting the Compatibility (Compat) Mode When used with a Lectrosonics Digital Hybrid Wireless receiver, the best audio quality will be achieved with the system set to the Nu Hybrid compatibility mode. Gain Freq. ProgSw Compat Compat Nu Hybrid Use the UP and DOWN arrows to select the desired mode, then press the BACK button twice to return to the Main Window. Compatibility modes are as follows:

Receiver Models LCD menu item Mode 3:*

Nu Hybrid:

IFB Series:

Mode 3 Nu Hybrid IFB Mode Mode 3* works with certain non-Lectrosonics models. Nu Hybrid works with all Lectrosonics Digital Hybrid re-

ceivers. The receiver must also be set to the Nu Hybrid compatibility mode. IFB Series works with Lectrosonics IFB R1/R1a analog receivers.

* Contact the factory for details of this mode Connecting the Signal Source Microphones, line level audio sources and instruments can be used with the transmitter. Refer to the section entitled Wiring Hookups for Different Sources for details on the correct wiring for microphones to take full advantage of the Servo Bias circuitry. Adjusting the Input Gain The two bicolor Modulation LEDs on the control panel and keypad provide a visual indication of the audio signal level entering the transmitter. The LEDs will glow either red or green to indicate modulation levels as shown in the following table. Signal Level Less than -20 dB

-20 dB to -10 dB

-10 dB to +0 dB

+0 dB to +10 dB Greater than +10 dB Off Green Green Red Red Off Off Green Green Red

-20 LED

-10 LED NOTE: Full modulation is achieved at 0 dB, when the -20 LED first turns red. The limiter can cleanly handle peaks up to 30 dB above this point. It is best to go through the following procedure with the transmitter in the standby mode so that no audio will en-

ter 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. Gain Freq. ProgSw Compat Gain 25

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-20 0 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 oc-

cur during use, or set the output level of the instru-

ment or audio device to the maximum level that will be used. 4) Use the 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. and 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 ad-

justment set according to these instructions, and do not change it to adjust the audio output level of the receiver. Selecting Step Size This menu item allows frequencies to be selected in either 100 kHz or 25 kHz increments. Compat StepSize Phase Locked StepSiz StepSiz 100 kHz 25 kHz 100 kHz 25 kHz If the desired frequency ends in .025, .050 or .075 MHz, the 25 kHz step size must be selected. Normally, the receiver is used to find a clear operat-

ing frequency. All Lectrosonics Digital Hybrid Wireless receivers provide a scanning function to quickly and easily find prospective frequencies with little or no RF interference. In other cases, a frequency may be speci-

fied by officials at a large event such as the Olympics or a major league ball game. Once the frequency is determined, set the transmitter to match the associated receiver. 9 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM Selecting Frequency The setup screen for frequency selection offers several ways to browse the available frequencies. Gain Freq. ProgSw Compat Freq. b 19 51 494.500 Press MENU/

SEL to select one of four fields to make adjustments Each field will step through the available frequencies in a different increment. The increments are also different in the 25 kHz mode from the 100 kHz mode. Freq. b 19 51 494.500 Freq. b 19 51 494.500 Freq. b 19 51 494.500 These two fields step in 25 kHz increments when the step size is 25 kHz and 100 kHz increments when the step size is 100 kHz. These two fields always step in the same increments 1 band steps 1 MHz steps Freq. b 19 51 494.500 A fraction will appear next to the hex code in the setup screen and in the main window when the frequency ends in .025, .050 or .075 MHz. Freq. b 19 51 1 494.525 4 Fraction appears next to hex code in 25 kHz mode 1 b 19 451 MUTE 494.525

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-20 0 Selecting Frequency Using Two Buttons and Hold the MENU/SEL button in, then use the arrow buttons for alternate increments. 100 kHz Mode 1 band steps 10 MHz steps 10 MHz steps Freq. b 19 51 494.500 25 kHz Mode Freq. b 19 51 1 494.525 4 1.6 MHz steps to nearest 100 kHz channel 100 kHz steps to next 100 kHz channel 1 band steps 1.6 MHz steps 100 kHz steps Helpful Features on Receivers To aid in finding clear frequencies, several Lectrosonics receivers offer a SmartTune feature that scans the tun-

ing 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 func-

tion allow the receiver to set frequency, step size and compatibility modes on the transmitter via an infrared link between the two units. About Overlapping Frequency Bands When two frequency bands overlap, it is possible to select the same frequency at the upper end of one and the lower end of the other. While the frequency will be the same, the pilot tones will be different, as indicated by the hex codes that appear. In the following examples, the frequency is set to 494.500 MHz, but one is in band 470 and the other in band 19. This is done intentionally to maintain compat-

ibility with receivers that tune across a single band. The band number and hex code must match the receiver to enable the correct pilot tone. Freq. b 19 51 494.500 Freq. b470 F4 494.500 10 Make sure the band number and hex code match the receiver setting LMbLECTROSONICS, INC. Restoring Default Settings This is used to restore the factory settings. Backlit Rf On?

BatType Default Default settings No Yes IR (infrared) Sync The opening on the side panel is an IR port for quick setup using a receiver with this capability. The transfer is initiated with a switch on the receiver. IR Port Lectrosonics, Inc. Made in U.S.A. 470.100 - 537.575 MHz S/N XXXXX Model: LMBA1 IC: 8024A-LMBA1 The receiver can transfer the settings for Frequency, Step Size and Compatibility mode to the transmitter via the IR ports. When the settings are successfully transferred, OK will appear on the transmitter LCD. If a mismatch exists, an error message will appear on the transmitter LCD indicating the nature of the problem. IR Sync IR Sync IR Sync OK BLOCK Mismatch COMPAT Mismatch Selecting Audio Polarity (Phase) Audio polarity can be inverted at the transmitter so the audio can be mixed with other microphones without comb filtering. The polarity can also be inverted at the receiver outputs. Compat StepSiz Phase Locked Phase Pos. Neg. Adjusting LCD Backlight For viewing the LCD in dimly lit conditions, the backlight can be turned on continuously or set to turn off auto-

matically after either 30 seconds or 5 minutes. Phase Locked Backlit Rf On?

Backlit On 30 sec 5 min RF ON/OFF on the Menu The RF output of the transmitter can be turned off and on with a menu item on the LCD to switch from the standby mode to the operating mode. Backlit Rf On?

BatType Default Rf On?

No Yes Selecting Battery Type The voltage drop over the life of different batteries var-

ies 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 volt-

age across the operating time on each charge and stop working abruptly, so you will have little or no warning as they reach the end of operation. The timer is available on all Lectrosonics Digital Hybrid Wireless receivers. 11 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM 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 micro-

phones may require extra jumpers or a slight variation on the diagrams shown. It is virtually impossible to keep completely up to date on changes that other manufacturers make to their products, thus you may encounter a microphone that differs from these instructions. If this occurs please call our toll-free number listed under Service and Repair in this manual or visit our web site at:

www.lectrosonics.com

+5 VDC 1 2 3 4 5 GND 5V SOURCE MIC VOLTAGE SELECT LINE IN m h O 0 0 5 100 Ohm k 1

+

15uF Servo Bias Pin 4 to Pin 1 = 0 V Pin 4 Open = 2 V Pin 4 to Pin 2 = 4 V 200 Ohm 30uF

+

+

3.3uF 10k K 7

. 2 To Audio Amplifier To Limiter Control Backshell with strain relief TA5F Latchlock Insert Insulator Cable clamp Audio input jack wiring:

PIN 1 Shield (ground) for positive biased electret lavaliere microphones. Shield (ground) for dynamic microphones and line level inputs. PIN 2 Bias voltage source for positive biased electret lavaliere microphones that are not using servo bias circuitry and voltage source for 4 volt servo bias wiring. PIN 3 Microphone level input and bias supply. PIN 4 Bias voltage selector for Pin 3. Pin 3 voltage depends on Pin 4 connection. PIN 5 Line level input for tape decks, mixer outputs, musical instruments, etc. Pin 4 tied to Pin 1: 0 V Pin 4 Open: 2 V Pin 4 to Pin 2: 4 V Remove strain relief if using dust boot Dust boot (35510) Backshell without strain relief 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. 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. 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 fit 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. 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 LMbLECTROSONICS, INC. Microphone Cable Termination for Non-Lectrosonics Microphones TA5F Connector Assembly Mic Cord Stripping Instructions 1 5 4 2 3 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. Shield Insulation Crimp these fingers to contact the shield Crimp these fingers to clamp the insulation NOTE: This termination is intended for UHF transmitters only. VHF transmitters with 5-pin jacks require a different termination. Lectrosonics lavaliere microphones are terminated for compatibility with VHF and UHF transmitters, which is different from what is shown here. 13 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM Input Jack Wiring for Different Sources In addition to the microphone and line level wiring hook-

ups illustrated below, Lectrosonics makes a number of cables and adapters for other situations such as con-

necting musical instruments (guitars, bass guitars, etc.) to the transmitter. Visit www.lectrosonics.com and click on Accessories, or download the master catalog. A lot of information regarding microphone wiring is also available in the FAQ section of the web site at:

http://www.lectrosonics.com Hover over Support and click on FAQs. Follow the instructions to search by model number or other search options. Compatible Wiring for Both Servo Bias Inputs and Earlier Transmitters:

Fig. 1 Fig. 7 2 VOLT POSITIVE BIAS 2-WIRE ELECTRET BALANCED AND FLOATING LINE LEVEL SIGNALS SHIELD 1.5 k A UDI O Compatible wiring for microphones such as Countryman E6 headworn and B6 lavaliere. 3.3 k Also see Fig. 9 Fig. 2 4 VOLT POSITIVE BIAS 2-WIRE ELECTRET PIN 1 2 3 4 5 4 3 5 1 2 T A5 F PLUG Most common type of wiring for lavaliere mics. WIRING FOR LECTROSONICS M152/5P The M152 lavaliere microphone has an internal resistor and can be wired in a 2-wire configuration. This is the factory standard wiring. RED WHITE

(N/C) Fig. 3 - DPA Microphones DANISH PRO AUDIO MINIATURE MODELS This wiring is for DPA lavalier and headset microphones. NOTE: The resistor value can range from 3k to 4 k ohms. Same as DPA adapter DAD3056 Fig. 4 2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET 2.7 k SHIELD AUDIO Compatible wiring for microphones such as negative bias TRAM models. NOTE: The resistor value can range from 2k to 4k ohms. PIN 1 2 3 4 5 4 3 5 1 2 TA5F PLUG Fig. 5 - Sanken COS-11 and others 4 VOLT POSITIVE BIAS 3-WIRE ELECTRET WITH EXTERNAL RESISTOR SHIELD DRAIN (BIAS) SOURCE (AUDIO) Also used for other 3-wire lavaliere microphones that require an external resistor. 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 XLR JACK

*NOTE: If the output is balanced but center tapped to ground, such as on all Lectrosonics receivers, do not connect Pin 3 of the XLR jack to Pin 4 of the TA5F connector. TA5F PLUG Fig. 8 UNBALANCED LINE LEVEL SIGNALS SLEEVE SHIELD A UDI O 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). PIN 1 2 3 4 5 4 3 5 1 2 T A5 F PLUG Simple Wiring - Can ONLY be used with Servo Bias Inputs:

Servo Bias was introduced in 2005 and all trans-

mitters with 5-pin inputs have been built with this feature since 2007. Fig. 9 2 VOLT POSITIVE BIAS 2-WIRE ELECTRET Simplified wiring for microphones such as Countryman B6 Lavalier and E6 Earset models and others. NOTE: This servo bias wiring is not compatible with earlier versions of Lectrosonics transmitters. Check with the factory to confirm which models can use this wiring. Fig. 10 2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET Simplified wiring for microphones such as negative bias TRAM. NOTE: This servo bias wiring is not compatible with earlier versions of Lectrosonics transmitters. Check with the factory to confirm which models can use this wiring. Fig. 11 4 VOLT POSITIVE BIAS 3-WIRE ELECTRET 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. LMbLECTROSONICS, INC. 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 wire-

less 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 sig-

nal from affecting the capsule, even though the trans-

mitter input circuitry is already RF bypassed. If the mic is wired as directed, and you are having dif-

ficulty 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 pos-

sible, or if you are still having problems, capacitors can be installed on the mic pins inside the TA5F connec-

tor 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 SHIELD AUDIO CAPSULE 3-WIRE MIC SHIELD AUDIO TA5F CONNECTOR BIAS CAPSULE Capacitors in TA5F connector TA5F CONNECTOR Line Level Signals The normal wiring for line level signals is:

Signal Hot to pin 5 Signal Gnd to pin 1 Pin 4 jumped to pin 1 This allows signal levels up to 3V RMS to be applied without limiting. If more headroom is needed, insert a 20 k resistor in series with pin 5. Put this resistor inside the TA5F con-

nector to minimize noise pickup. Line Level Normal Wiring Line Level More Headroom

(20 dB) See Fig. 8 on previous page Wiring Diagram for MI39A Instrument Cable The MI39ARA and MI39AST instrument cable assem-

blies allow an optimum match between musical instru-

ment pickups and Lectrosonics transmitters with 5-pin input connectors. The cables are wired to provide an extended low fre-

quency response with a roll-off at 35 Hz. Note: This cable is prewired and cannot be field modified. The cable is available in two configurations, MI39ARA (right angle 1/4 plug) and MI39AST (straight 1/4 plug). 1/4 " PLUG SLEEVE SHIELD AUDIO TIP Preamp Preamp is located inside the connector shell SHIELD PWR AUDIO PIN 1 2 3 4 5 4 3 5 1 2 TA5F PLUG 15 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM Accessories P/N 26526 Wire belt clip BCHINGED Hinged 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 MC41 Line level adapter cable; XLR-F to TA5F;

37 length Dynamic mic level adapter cable; XLR-F to TA5F; 37 length P/N 55008 AA battery caddy; 4-pack; blue 16 LMbLECTROSONICS, INC. Troubleshooting Symptom:

Transmitter Battery LED off when Power Switch ON No Transmitter Modulation LEDs when Signal Should be Present Receiver Indicates RF But No Audio Receiver RF Indicator Off It is important that you follow these steps in the sequence listed. Possible Cause:

1. Batteries are inserted incorrectly. 2. Batteries are low or dead. 1. Gain control turned all the way down. 2. Batteries are inserted incorrectly. Check power LED. 3. Mic capsule is damaged or malfunctioning. 4. Mic cable damaged or miswired. 5. Instrument Cable damaged or not plugged in. 6. Musical instrument output level set too low. using an alternate source or cable. 1. Audio source or cable connected to transmitter is defective. Try 2. Make sure the compatibility mode is the same on transmitter and 3. Ensure musical instrument volume control is not set to minimum. 4. Check for correct pilot tone indication on the receiver. See item on page 11 entitled About Overlapping Frequency Bands. receiver. frequency, and that the hex code matches. 1. Ensure that the transmitter and receiver are set to the same 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 LEDs on transmitter and receiver while distortion is being heard. system or recorder input. Adjust output level on receiver to the correct level for the recorder, mixer or sound system. 1. Transmitter gain (audio level) is too high. Check Modulation 2. Receiver output level may be mismatched with the sound 3. Transmitter and receiver may not be set to the same compatibility mode. Some mis-matched combinations will pass audio. 4. RF interference. Reset both transmitter and receiver to a clear channel. Use scanning function on receiver if available. Wind Noise or Breath Pops 1. Reposition microphone, or use a larger windscreen, or both. 2. Omni-directional mics produce less wind noise and breath pops than directional types. Hiss and Noise -- Audible Dropouts 1. Transmitter gain (audio level) far too low. 2. Receiver antenna missing or obstructed. 3. Operating distance too great. 4. RF interference. Reset both transmitter and receiver to a 5. Musical instrument output set too low. 6. Microphone capsule picking up RF noise. See item on page 15 clear channel. Use scanning function on receiver if available. entitled Microphone RF Bypassing. Excessive Feedback (With Microphone) and/or reduce receiver output level. 1. Transmitter gain (audio level) too high. Check gain adjustment 2. Microphone too close to speaker system. 3. Microphone is too far from users mouth. 17 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM Specifications and Features 470.100 - 537.575 537.600 - 607.950 Operating Frequencies:

Band A1:

Band B1:

Frequency Selection Steps:

RF Power output:

Compatibility Modes (3) Pilot tone:

Frequency Stability:

Spurious radiation:

Equivalent input noise:

Input level:

Input impedance:

Input limiter:

Gain control range:

Modulation indicators:

Audio Performance (Nu Hybrid mode) Frequency Response:

Low frequency roll-off:

THD:

SNR at receiver output:

Selectable; 100 kHz or 25 kHz 50 mW Nu Hybrid, Mode 3, IFB 3.5 kHz deviation (Nu Hybrid) 0.002%

Compliant with ETSI EN 300 422-1 v1.4.2 120 dBV (A-weighted) Nominal 2 mV to 300 mV, before limiting Greater than 1V maximum, with limiting 2k Ohm DSP controlled, dual envelope soft limiter with greater than 30 dB range 44 dB; digital control Dual bicolor LEDs indicate modulation of

-20, -10, 0 and +10 dB referenced to full modulation LCD bar graph 90 Hz to 20 kHz (+/-1dB) 12 dB/octave; 70 Hz 0.2% (typical) SmartNR OFF NORMAL FULL No Limiting 103.5 107.0 108.5 w/Limiting 108.0 111.5 113.0 Note: The dual envelope soft limiter provides exceptionally good handling of transients using variable attack and release time constants. Once activated, the limiter compresses 30+ dB of transmitter input range into 4.5 dB of receiver output range, thus reducing the measured figure for SNR without limiting by 4.5 dB Controls:

Audio Input Jack:

Antenna:

Battery:

Battery Life:

Weight:

Dimensions:

Emission Designator:

Top panel slide switch; programmable as power, mute, talkback or no (off) function Side panel membrane switches with LCD interface for power on/off and all setup and configuration controls Switchcraft 5-pin locking (TA5F) Galvanized steel, flexible wire Two AA lithium Duracell Quantum: 7 hours 5 ounces (141 grams), including lithium AA batteries and wire belt clip 3.2 x 2.4 x .8 in. (81 x 61 x 20 mm) 110KF3E Specifications subject to change without notice. 18 LMbLECTROSONICS, INC. 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 at-

tempt 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. Dont 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 dam-

age 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 Web:

www.lectrosonics.com Shipping address:

Lectrosonics, Inc. 581 Laser Rd. Rio Rancho, NM 87124 USA E-mail:

sales@lectrosonics.com Telephone:

(505) 892-4501

(800) 821-1121 Toll-free

(505) 892-6243 Fax Lectrosonics Canada:

Mailing Address:

720 Spadina Avenue, Suite 600 Toronto, Ontario M5S 2T9 Telephone:

(416) 596-2202

(877) 753-2876 Toll-free

(877-7LECTRO)

(416) 596-6648 Fax E-mail:

Sales:

Service: joeb@lectrosonics.com colinb@lectrosonics.com 19 Digital Hybrid Wireless Belt-Pack TransmitterRio Rancho, NM 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 19 October 2018