Lectrosonics UH400 Wireless Microphone Transmitter User Manual uh400man pmd

Lectrosonics Inc Wireless Microphone Transmitter uh400man pmd

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UH400 User Manual

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UH400FREQUENCY-AGILEPLUG-ON UHF TRANSMITTERLECTROSONICS, INC.Rio Rancho, NMwww.lectrosonics.comOPERATING INSTRUCTIONSand trouble-shooting guide

2UH400LECTROSONICS, INC.INTRODUCTIONThank you for selecting the Lectrosonics UH400 frequency agile, plug-on transmitter. TheUH400 combines over 80 years of engineering experience with the very latest components, in adesign that addresses the most demanding professional applications.The design of the UH400 was the direct result of numerous conversations with users, staging andtouring companies and dealers across the US. The specific concerns and needs brought up inthese conversations led directly to the development of the operational features offered on theUH400. Two hundred fifty six frequencies are user selectable in 100kHz steps to alleviateinterference problems in travelling venues.The UH400 is a rugged, machined aluminum package. Selectable voltage phantom power isprovided on pins 2 and 3. Level indicating LEDs are provided to make level settings quick andaccurate, without having to view the receiver. The battery compartment accepts any 9 Voltalkaline or lithium battery and makes a positive connection via self-adjusting contacts.Only the UH400 transmitter is covered in this manual. Companion receivers are covered inseparate manuals. The UH400 will operate with any 100, 200 or 400 Series Lectrosonicsreceiver in the same frequency group.The UH400 transmitter is FCC type accepted under Part 74: 470 - 608MHz and 614 - 806MHzTABLE OF CONTENTSINTRODUCTION ..................................................................................................... 2GENERAL TECHNICAL DESCRIPTION ...............................................................3CONTROLS AND FUNCTIONS .............................................................................4OPERATING INSTRUCTIONS ............................................................................... 6TROUBLESHOOTING ............................................................................................ 8SPECIFICATIONS AND FEATURES .................................................................. 10SERVICE AND REPAIR ...................................................................................... 11RETURNING UNITS FOR REPAIR ..................................................................... 11WARRANTY ........................................................................................... Back cover

3Frequency Agile Plug-on UHF TransmitterRio Rancho, NM – USAGENERAL TECHNICAL DESCRIPTIONGENERALThe 400 system uses 75kHz wide deviation for an extremely highsignal to noise ratio. The switching power supplies provide con-stant voltages to the transmitter circuits from the beginning (9.3Volts) to the end (5.5 Volts) of battery life. The input amplifieruses an ultra low noise op amp for quiet operation. It is gaincontrolled with a wide range dual envelope input compressorwhich cleanly limits input signal peaks over 30dB above fullmodulation.DIGITAL HYBRID TECHNOLOGYAll wireless links suffer from channel noise to some degree, andall wireless microphone systems seek to minimize the impact ofthat noise on the desired signal. Conventional analog systemsuse compandors for enhanced dynamic range, at the cost ofsubtle artifacts (known as “pumping” and “breathing”). Whollydigital systems defeat the noise by sending the audio informationin digital form, at the cost of some combination of power, band-width and resistance to interference.The Lectrosonics Digital Hybrid system overcomes channel noisein a dramatically new way, digitally encoding the audio in thetransmitter and decoding it in the receiver, yet still sending theencoded information via an analog FM wireless link. This propri-etary algorithm is not a digital implementation of an analogUH400 Block Diagramcompandor but a technique which can be accomplished only inthe digital domain, even though the inputs and outputs are ana-log signals. (As of this writing, the patent is still pending, so wecannot reveal detailed information about the algorithm at thistime.)Channel noise still has an impact on received signal quality andwill eventually overwhelm the receiver. The Digital Hybrid simplyencodes the signal to use a noisy channel as efficiently androbustly as possible, yielding audio performance that rivals thatof wholly digital systems, without the power and bandwidth prob-lems inherent in digital transmission. As always, theseadvantages come at a cost. The Digital Hybrid system requiresfairly intensive digital processing in both the transmitter and thereceiver. These processors cost money, take up space andconsume power. The Digital Hybrid system also requires that theunderlying RF link be of excellent quality, with better frequencyresponse and distortion characteristics than that required byconventional systems.Because it uses an analog FM link, the Digital Hybrid enjoys allthe benefits of conventional FM wireless systems, such as excel-lent range, efficient use of RF spectrum, and long battery life.However, unlike conventional FM systems, the Digital Hybrid hasdone away with the analog compandor and its artifacts.TransmitterPhase Locked LoopVoltageControlledOscillatorFreqSwitches11001001A-DConverterDigital Signal Processor11001001D-AConverterShuntLimiterBicolorModulationLEDsMicroprocessor9VSwitchingPowerSupply+3.3v+3.2v+1.8v+6v-3v50IsolatorHi/LoPassFilterAudioEncodedAudio +Pilot Tone11.3 MHzReferenceBicolorPowerLEDAudioLevelInputAmpINPUTJACK+5V / +15V / +48VBIAS SUPPLY<-- (See Input Jack under Controls and Functions for details.)

4UH400LECTROSONICS, INC.NO PRE-EMPHASIS/DE-EMPHASISThe signal to noise ratio of the 400 system is high enough topreclude the need for conventional pre-emphasis (HF boost) inthe transmitter and de-emphasis (HF roll off) in the receiver. Pre-emphasis and de-emphasis in an FM radio system usuallyprovides about a 10dB improvement in the signal to noise ratio ofthe system, but the high frequency boost in the transmitter mustbe removed in a purely complementary manner or else thefrequency response of the original audio signal will be altered.Pre-emphasis can also cause distortion in the receiver. As thissignal is passed through the IF filters in the receiver, distortioncan be produced, most noticeably at full modulation. De-empha-sis cannot be applied until the signal is converted into audio, sothere is no way around this problem short of eliminating pre-emphasis altogether. Neither of these problems occur in the 400systemPILOT TONE SQUELCHThe 400 system utilizes one of 256 different ultrasonic tonesbetween 25 and 32 kHz, that modulate the carrier to operate thereceiver squelch. The pilot tone frequency is chosen accordingto which of the 256 channels has been selected by the frequencyswitch setting. The basic benefit of the pilot tone squelch systemis that the receiver will remain muted until it receives the pilottone from the matching transmitter, even if a strong RF signal ispresent on the carrier frequency of the system. The UM400extends this concept even further by insuring that all transmittersin a system have different pilot tone frequencies so that evenspurious RF from the wrong transmitters can’t open the receiversquelch.WIDE-BAND DEVIATION±75kHz deviation improves the capture ratio, signal to noise ratioand AM rejection of a wireless system dramatically, compared tothe more commonly used ±15kHz deviation.LONG BATTERY LIFESwitching power supplies throughout the design allow over 4.5hours of operation using a single 9 Volt alkaline battery. (A 9Vlithium battery will provide over 12 hours of operation.) Thebattery contacts are spring loaded to prevent “rattle” as the unit ishandled.FREQUENCY AGILITYThe transmitter section uses a synthesized, frequency selectablemain oscillator. The frequency is extremely stable over a widetemperature range and over time.Two rotary switches, located on the side panel of the unit, provide256 frequencies in 100kHz steps over a 25.5MHz range. Thisalleviates carrier interference problems in mobile or travelingapplications.Top View Control Panel–10–20POWERON/OFFLEDPW R O FFLEVELP HTMN O P HTM 5V1 5V48 VMIC LEVELPHANTOM POWERVOLTAGE SELECTPOWERSWITCH0123456789ABCDEFFREQUENCY1.6MHz 100kHz0123456789ABCDEFSide ViewFREQUENCY SWITCHES(BEHIND DOOR)INPUTJACKINPUTJACKMODULATION LEDsCONTROLS AND FUNCTIONSThe UH400 may be used with a wide variety of microphones.The 3-pin XLR connector on the UH400 allows the transmitter tobe used with any dynamic microphone, as well as many two wirepositive bias lavaliere systems (such as those systems suppliedby Lectrosonics).POWER SWITCHTurns the battery power on and off. Even when the switch isturned off or on abruptly, the pilot tone muting system prevents“thumps” or transients from occurring.The PHTM (center) position of the power switch turns on thephantom power while the NO PHTM (fully on) position disablesphantom power. Be careful to use the center position phantompower only when necessary and keep the voltage selector switchin the 5 Volt position for additional protection against accidents.POWER ON/OFF LEDThis LED glows green when the battery is good. When the lampglows red, there is about 30 minutes of operation left with therecommended lithium battery, and about 20 minutes of life leftwith an alkalline battery. The lamp will flash red when there areonly a few minutes of life remaining. A NiMh battery will give littleor no warning when it is depleted. If you wish to use NiMhbatteries in the UM400, we recommend trying fully chargedbatteries in the unit, noting the length of time that the batterieswill run the unit and in the future use somewhat less than thattime to determine when the battery needs to be replaced. Aweak battery will sometimes light the POWER LED to the “good”

5Frequency Agile Plug-on UHF TransmitterRio Rancho, NM – USAgreen indication immediately after being put in the unit, but willsoon discharge to the point where the LED will go red or shutdown, just like a flashlight with “dead” batteries. If the lamp failsto light, the battery should be replaced.PHANTOM POWER VOLTAGE SELECT SWITCHThis switch selects from three voltages when the PWR switch isin the mid position. The voltages are:•5 Volts for lavaliere microphones,•15 Volts for some professional mics requiring high current andfor many common stage mics that will operate over a widephantom voltage range of 12 to 48 Volts. With the properadapter, this position can also be used with T power micro-phones. See our web site for details on finding or making theproper adapter.•42 Volts for microphones that do in fact require a supplygreater than 15 Volts. (See below for a discussion of why 42and not a “true” 48 Volts.)For longest battery life use the minimum phantom voltage neces-sary for the microphone. Many stage microphones regulate the48 Volts down to 10 Volts or so internally anyway, so you mightas well use the 15 Volt setting and save some battery power. Ifyou are not using a microphone for the input device, turn thephantom power off (off is the fully up position of the powerswitch). The phantom power should only be used with a fullyfloating, balanced device such as almost any type microphonewith a 3 pin XLR connector. If you use the phantom power with anunbalanced device or if pins 2 or 3 are DC connected to ground,then you will draw maximum current from the power supply. TheUH400 is fully protected against such shorts but the 9 Volt batterywill be drained at twice its normal rate.The transmitter can supply 4 mA at 42 Volts, 8 mA at 15 Volts,and 8 mA at 5 Volts. The 42 Volts setting actually supplies thesame voltage to a 48 Volt microphone as the DIN standardarrangement due to a dynamic biasing scheme that does nothave as much voltage drop as the DIN standard. The 48 Volt DINstandard arrangement protects against shorts and high faultcurrent with high resistance in the power supply feeds to pins 2and 3. This protects the supply if the supply current is acciden-tally shorted to ground and also keeps the microphone frombeing attenuated by the power supply. The UH400 improves onthose functions and is able to use less power from the battery byusing constant current sources and current limiters. With thisdynamic arrangement the UH400 can also supply more thantwice the current of competing 48 Volt plug on units and provide4 times the current to some very high end 15 Volt microphones.The 5 Volt setting is provided for lavaliere microphones made byus and others. Do not power lavalieres from the 15 or 48 Voltsetting as the microphone will be most likely destroyed. Lec-trosonics makes an adapter, MCA5X, that will adapt our standardTA5F 5 pin microphones to the UH400. This adapter also pro-vides protection against excessive phantom voltage. If voltageshigher than 5 Volts are applied to the adapter, a Zener will shuntexcess voltage to ground. The microphone won't work until thevoltage is correctly reduced to 5 Volts. If you have an older123+5V / +15V / +42V4.7uf1uh1uh1uhTo MicPreamp1000Ilavaliere mic that was wired directly to an XLR for use with theearlier UH200's, we strongly recommend building our protectioncircuit into the XLR to prevent accidental destruction of thelavaliere.FREQUENCY ADJUSTThese two rotary switches adjust the center frequency of thecarrier. The 1.6M is a coarse adjustment and the 100K is the fineadjustment. Each transmitter is factory aligned at the center ofits operating range. The default position of the frequency selectswitches is in the center of the transmitter’s range.INPUT JACKStandard 3-pin Switchcraft XLR type. Pin 2 is signal, pin 3 is afloating signal ground, and pin 1 is case ground (see schematicbelow). The UH400 is self-locking onto a standard microphone.If severe noise is experienced when the microphone is movedwith respect to the UH400, the cause is an unbalanced con-dition between pins 2 and 3 of the microphone.MODULATION LEDSIndicate the proper setting of the MIC LEVEL control. There aretwo bicolor modulation LEDs that can light either red or green.“-20dB level” One modulation LED glows green and thetransmitter is 20 dB below full modulation.“-10 dB level” Both modulation LEDs glow green and thetransmitter is close to full modulation.“+0 dB level” The -20 LED glows red and the -10 LEDglows green. The transmitter is in slightlimiting and is fully modulated. This isprobably desirable. See the discussion belowunder Input Limiter.“+10 dB level” Both LEDs are red. The transmitter is inlimiting and you may want to reduce thetransmitter audio gain. See the discussionbelow under Input Limiter.0123456789ABCDEF0123456789ABCDEFFrequency select switches, default position (8,8)InputJackSchematic

6UH400LECTROSONICS, INC.TO ATTACHTO REMOVEPull on mic to insure locking.Press firmly, listen for click.Depress collar fully.Hold the transmitter case and rotate the collar in the direction shown. Do this over a soft surface as the microphone may pop off suddenlyClick!INPUT LIMITERThe 400 series transmitters employ a digitally-controlled analogaudio limiter just before the analog-to-digital converter. Thelimiter has a range of more than 30dB for excellent overloadprotection. A dual release envelope makes the limiter acousti-cally transparent while maintaining low distortion. It can bethought of as two limiters in series, connected as a fast attackand release limiter followed by a slow attack and release limiter.The limiter recovers quickly from brief transients, so that itsaction is hidden from the listener, but recovers slowly from sus-tained high levels, to both keep audio distortion low and preserveshort term dynamic changes.The audio level LEDs indicate limiter activity. The first red LEDindicates that the limiter is active and that the transmitter is fullymodulated (audio level is between +0 and +10 dB). The secondred LED indicates that the level is 10dB or more into limiting.Occasional forays into the red are desirable for most applica-tions, since the distortion introduced by the limiter is so minimal,and full modulation is thus assured. We strongly recommendsetting the gain of the transmitter high enough so that the first redLED occasionally lights.Attaching the Microphone Generally speaking, some limiting is desirable in normal opera-tion to improve the signal to noise ratio of the system. Thelimiting action is not audible and does not create distortion. Ahighly trained ear would hear only the compression of the peaksin the audio signal, which is desirable with most recorders andmany sound reinforcement systems.OPERATING MODE INDICATORSThe modulation LEDS will blink at power up to indicate theselected operating mode. Immediately after powering up, allLEDS will blink together red, then green, followed by the audiolevel LEDs (-20 and -10) blinking to indicate the mode.The –20 and –10 LEDs will blink:• Once for 100 mode• Two times for 200 mode• Three times for mode 3• Four times for 400 modeMIC LEVELUsed to adjust the audio input level for the proper modulation.1. Insert the UH400 into the selected microphone. Listen for the“click” that indicates the transmitter has locked on to themicrophone. Pull on the mic to insure proper locking hasoccurred.2. Turn the power switch on and, if necessary, enable phantompower and select the proper voltage for your microphone.3. Hold the microphone as you will when you will be using it.4. Position the microphone in the location you will use in actualoperation.5. While speaking or singing at the same voice level that willactually be used, observe the MODULATION LEDs. Adjustthe MIC LEVEL control knob until the LEDs begin to light. Attoo low a setting neither LED will light as you speak. Gradually,turn the gain up until the –20 dB LED lights green and then the-10 dB lights green. We strongly recommend setting the gainof the transmitter even higher so that the first red LEDoccasionally lights.6. Once the gain has been adjusted, the audio system audio canbe turned on to make level adjustments in the main audiosystem.OPERATING INSTRUCTIONS

7Frequency Agile Plug-on UHF TransmitterRio Rancho, NM – USAOPERATING TIPSThe MIC LEVEL control knob should not be used to control thevolume of your sound system or recorder levels. This gainadjustment matches the transmitter gain with the user’s voicelevel and microphone positioning.If the audio level is too high — both red LEDs will light frequentlyor stay lit. This condition may reduce the dynamic range of theaudio signal.If the audio level is too low — neither LED will light, or only the–20 LED will light green. This condition may cause hiss andnoise in the audio.Different voices will usually require different settings of the MICLEVEL control, so check this adjustment as each new personuses the system. If several different people will be using thetransmitter and there is not time to make the adjustment for eachindividual, adjust it for the loudest voice.ADJUSTING THE TRANSMITTER FREQUENCYIf you are experiencing interference from another signal on yourfrequency, you may want to change the operating frequency ofyour system. The left switch changes the operating frequency by1.6 MHz per step and the right switch changes it 100 kHz perstep. If you are experiencing interference, change the operatingfrequency in 100 kHz steps to find a clear channel. If it is notpossible to find a clear channel using the 100 kHz switch, return itto its original position and change the 1.6 MHz switch by one clickthen try the 100 kHz switch again.To gain access to these switches, slide the access door openwith a fingernail.SELECTING THE OPERATING MODEThis unit is capable of working with Lectrosonics 100 seriesanalog , 200 series analog, 400 series digital hybrid or someother analog wireless receivers (contact the factory for details).The transmitter must be set to the operating mode of the match-ing receiver, which is easily done using only the suppliedscrewdriver and a battery.NOTE: the UH400 is supplied from the factory as a400 series transmitter1. Make certain a good battery is in the battery compartment. Ifthe PWR LED lights up, the battery is correctly loaded.2. Turn off the transmitter.3. With a small screwdriver (included with your unit), set thefrequency change switches to CC. (for Change, Change).4. Power up the unit briefly – just a couple of seconds (just watchfor the LED’s to light up) then immediately turn it off.5. Change the switches to one of the following settings:MODE SWITCH SETTINGS100 Series 1,1200 Series 2,2Mode 3* 3,3 (*Contact factory for details.)400 Series Digital Hybrid 4,46. Turn the transmitter on, wait just a couple of seconds and turnoff again.7. Change the switches to 0,0.8. Power up the unit. You have now changed the operation modefor the UH400.At power up the UH400 will confirm the current operating modewith the number of blinks listed above. The setting will remainthe same until you reset it with the procedure listed above. Youdo not have to change it with every use.0123456789ABCDEF0123456789ABCDEFFrequency select switches, default position (8,8)

9Frequency Agile Plug-on UHF TransmitterRio Rancho, NM – USASYMPTOM POSSIBLE CAUSERECEIVER RF LAMP OFF 1. Transmitter not turned on.2. Transmitter battery is dead.3. Receiver antenna missing or improperly positioned.4. Transmitter and receiver not on same frequency. Check switches/display on transmitter and receiver.5. Operating range is too great.NO SOUND (OR LOW SOUND LEVEL),RECEIVER MOD LEVEL LEDs ARE ON 1. Receiver output level set too low.2. Receiver output is disconnected; cable is defective or mis-wired.3. Sound system input is turned down.NO SOUND (OR LOW SOUND LEVEL),RECEIVER MOD LEDs ARE OFF 1. Transmitter gain (audio level) set too low.2. Faulty microphone3. Phantom power not enabled for mic that requires it.DISTORTED SOUND 1. Transmitter gain (audio level) is far too high. Check mod levellamps on transmitter and receiver as it is being used. (Refer tothe Operating Instructions section for details on gain adjustment)2. Receiver output may be mismatched with the sound system orrecorder input. Adjust output level on receiver to the correct levelfor the recorder, mixer or sound system.3. Excessive wind noise or breath “pops.” Reposition microphoneand/or use a larger windscreen.4. Transmitter is not set to same frequency as receiver. Check thatfrequency select switches on receiver and transmitter match.HISS AND NOISE – AUDIBLE DROPOUTS 1. Transmitter gain (audio level) far too low.2. Receiver antenna missing or obstructed.3. Operating range too great.EXCESSIVE FEEDBACK 1. Transmitter gain (audio level) too high causing the limiter to reducethe dynamic range which in turn causes feedback. Check gainadjustment and/or reduce receiver output level. (Refer to theOperating Instructions section for details on gain adjustment)2. Transmitter too close to speaker system.3. Mic is too far from user’s mouth.

10UH400LECTROSONICS, INC.SPECIFICATIONS AND FEATURESOperating frequencies: 537.600 to 607.900 MHz; 614.100 to 793.500 MHzFrequency selection: 256 frequencies in 100kHz stepsRF Power output: 100 mW (nominal)Pilot tone: 25 to 32 kHz; 5kHz deviation (in 400 Series mode)Frequency stability: ± 0.002%Deviation: ± 75 kHz max. (in 400 Series mode)Spurious radiation: 60 dB below carrierEquivalent input noise: –118 dBV, A-weightedInput level: Nominal 2 mV to 300 mV, before limiting; Greater than 1.0 V maximum, with limiting.Input impedance: 1k OhmInput limiter: Soft limiter, >30 dB rangeGain control range: 43 dB; semi-log rotary controlModulation indicators: Dual bicolor LEDs indicate modulation of –20, -10, 0, +10 dB referenced tofull modulation.Low frequency roll-off: –12dB/octave; 70 HzControls: Control panel knob adjusts audio gain.Rotary switches on bottom panel adjust transmitter frequency.Audio Frequency Response: 70 Hz to 20 kHz, +/-1dB (The audio is deliberately rolled off at 70Hz using a12dB/octave filter. This filter cannot be disabled.)Signal to Noise Ratio (dB): SmartNR No Limiting With Limiting(overall system, 400 Series mode) Off 103.5 108.0Normal 107.0 111.5Full 108.5 113.0Note: The dual envelope “soft” limiter provides exceptionally good handling oftransients using variable attack and release time constants. The gradual onset oflimiting in the design begins below full modulation, which reduces the measuredfigure for SNR without limiting by 4.5 dB.Total Harmonic Distortion: 0.2% typical (400 Series mode)Antenna: Built inBattery Type: 9V Alkaline or LithiumBattery Life: 4.5 Hours with alkaline 9 Volt, 12 hrs with lithium (Battery life will vary with batterybrand, phantom power voltage setting and mic current drain.)Weight: 6.5 ozs. with lithium battery, no micOverall Dimensions: 1.5 x 1.5 x 4.2 inches (Not including microphone.)Emission Designator: 180KF3ESpecifications subject to change without notice.The FCC requires that the following statement be included in this manual:This device complies with FCC radiation exposure limits as set forth for an uncontrolledenvironment. This device should be installed and operated so that its antenna(s) arenot co-located or operating in conjunction with any other antenna or transmitter.

11Frequency Agile Plug-on UHF TransmitterRio Rancho, NM – USASERVICE AND REPAIRIf 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 out the interconnecting cords and then gothrough the TROUBLE SHOOTING section in the manualWe strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop attempt anythingother than the simplest repair. If the repair is more complicated than a broken wire or loose connection, send the unit to the factoryfor repair and service. Don’t attempt to adjust any controls inside the units. Once set at the factory, the various controls and trimmersdo not drift with age or vibration and never require readjustment. There are no adjustments inside that will make a malfunction-ing unit start working.LECTROSONICS’ service department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at nocharge in accordance with the terms of the warranty. Out of warranty repairs are charged at a modest flat rate plus parts andshipping. 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 foran exact quotation. We will be happy to quote approximate charges by phone for out of warranty repairs.RETURNING UNITS FOR REPAIRYou will save yourself time and trouble if you will follow the steps below:A. DO NOT return equipment to the factory for repair without first contacting us by letter or by phone. We need to know the nature ofthe problem, the model number and the serial number of the equipment. We also need a phone number where you can be reached8 am to 4 pm (Mountain Standard Time).B. After receiving your request, we will issue you a return authorization number (R.A.). This number will help speed your repairthrough our receiving and repair departments. The return authorization number must be clearly shown on the outside of theshipping container.C. Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the proper packingmaterials. 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 equipmentthat you ship. Of course, we insure the equipment when we ship it back to you.Mailing address: Shipping address: Telephones:Lectrosonics, Inc. Lectrosonics, Inc. Regular: (505) 892-4501PO Box 15900 581 Laser Rd. Toll Free (800) 821-1121Rio Rancho, NM 87174 Rio Rancho, NM 87124 FAX: (505) 892-6243USA USAWorld Wide Web: http://www.lectrosonics.com Email: sales@lectrosonics.com

LIMITED ONE YEAR WARRANTYThe 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.LECTROSONICS, INC.581 LASER ROADRIO RANCHO, NM 87124 USAwww.lectrosonics.comMay 1, 2003LIMITED ONE YEAR WARRANTY

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