Installation Guide & User Manual
Contents
1. Modulation Signal Mod Out Es Power Supply Modulation Signal X A Williams Sound Helping People Hear SCC Controls and Features MOD 1 Front Panel Power Switch Turns modulator power on off Power Indicator Green LED indicates power on Audio Level Indicators Ok amber LED indicates proper audio input level Hi red LED indicates excessive audio input level Audio Level Control Screwdriver rotary adjustment for audio input level Infrared Test LED Infrared LED provides a modulated IR signal for receiver testing monitoring audio source testing Tape Output RCA Jack provides unbalanced line level audio output signal for tape recorders etc MOD 1 Rear Panel Balanced Microphone Level Input Female XLR jack for use with low impedance 150 2002 microphones Supplies simplex DC power per DIN 45596 for condenser microphones Fig 2 MOD 1 Front amp Rear Panels Balanced Line Level Input Female XLR jack for balanced line level inputs Can also accept unbalanced input and 4Q 8Q or 16Q speaker line 70V Hi Level Input Female XLR jack for direct connection to a 70V or 25V speaker line Input Level Switch Three position switch selects mic level line level or 70V input for the XLR input jack Unbalanced Audio Inputs Two RCA jacks for unbalanced line level audio inputs Inputs are mixed internally with the balanced inpu2. I Installation Guide amp User Manual SoundPlus WIR TX300 Infrared System Large Area Infrared Listening System Modulator Model WIR MOD 1 Transmitter Model WIR TX3 Vv TTT Receiver Models WIR RX1 RX3 RX4 Williams Sound MAN 046C V A SoundPlus WIR TX300 Infrared Listening System Installation and User Manual Contents Page Introduction 4 Controls and Features MOD 1 Front Panel 5 MOD 1 Rear Panel 5 TX3 Transmitter 6 Infrared Transmitter Setup Selecting a Transmitter Location 7 Mounting TX3 Transmitter To Wall or Ceiling 8 Transmitter Power Wiring 9 95 kHz Carrier Cable Connection 10 Modulator Installation Power Connection 10 95 kHz Carrier Cable Connection 1 Audio Source Connection 1 Using a Microphone 1 Hi Pass Filter Setting 1 Testing the System 12 Receiver Instructions 12 Battery Information 13 Suggestions For Receiver Management 14 Troubleshooting 14 Warranty 14 Specifications 15 Note Taking a few minutes now to read these instructions will save time and ensure proper system operation K4 Williams Sound 3 Helping People Hear V A Introduction The Williams Sound WIR TX300 Infrared System consists of a MOD 1 Modulator and one or more TX3 Transmitters also called emitters which use invisible infrared IR light waves to broadcast speech or music to wireless infrared receivers The Modulator accepts a variety of audio inputs and sends a 95 kHz frequency modulated signal to
3. 4 Williams Sound Helping People Hear Rear Panel Audio Inputs Balanced Audio In Mic Input Line Input 70 Volt Input Unbalanced Audio Ins Input Selector High Pass Filter Modulation Outputs Power Connections Transmitter Type TX3 Front Panel Power Indicator TX3 Rear Panel Mounting Holes Modulation Input Modulation Output Power Connection 95 kHz Carrier Cable Power Cable All three inputs are actively mixed into a single signal allowing use of mono stereo or 3 channel audio sources 3 pin female XLR accepts microphone line 25V or 70V audio input lo Z 100uV min to 50mV max ImV nominal 3kQ input impedance Supplies simplex power 20V DIN45296 for condenser mics 21mV min to 10V max 212mV nominal 100KQ input impedance 216mV min to 100V max 2 16V nominal 100KQ input impedance 2 RCA 21mV min to 10V max 212MV nominal 50KQ input impedance 3 position slide type switch selects mic line 70V on balanced audio input 3 position slide type switch 20Hz 175Hz or 725Hz 6dB octave roll off 2 F type connectors 750 95kHz FM 15kHz deviation 0 5V P P signal uses RG 59 cable 1000 ft 304 m max CATV splitters cannot be used 2 conductor screw terminals For use with Williams Sound WIR TX1 WIR TX2 WIR TX3 Transmitter Emitter panels Each MOD 1 Modulator can drive two Transmitter panels directly For multi transmitter systems each TX3 repeats the modula
4. One IEC rack space high one or two units can be mounted in a single rack space with optional RPK 005 single or RPK 006 double Rack Mount kits External power supply 24VAC 50 or 60Hz 2 4VA 82mA max current drain 95kHz FM 15kHz deviation 75Q source impedance 75usec pre emphasis Variable slope compressor limiter 0 50 C ambient temperature non condensing non corrosive atmosphere Two position rocker ON OFF Green LED Amber LED Ok for nominal input signal level Red LED Hi for excessive input signal level Audio Level Control Tape Output Infrared Test LED Rotary pot screwdriver adjust used with audio indicator lights RCA jack 600mV 1200Q source impedance 10KQ nominal load impedance IR LED for receiver testing monitoring and audio signal testing Infrared Transmitter Model TX3 Dimensions Weight Color Wall Mount Tripod Mount Power Operating Req Coverage Area 11 125 28 3 cm W x 8 125 20 6 cm H x 3 25 8 3 cm D 3 25 Ibs 1 6 kg Black epoxy paint with white legends red acrylic window Omnidirectional mount included for wall and ceiling mounting Optional SS 2 Tripod Stand Kit available External power supply 24VAC 50 or 60Hz 50VA 0 9A nom current drain Transmitter shuts off when modulation signal is not present 0 50 C ambient temperature non condensing non corrosive atmosphere 10 000 sq ft 930 sq m 50 cone pattern see coverage diagram K
5. Use the RCA to RCA audio cable supplied to connect either MOD 1 unbalanced Audio Input jack to an appropriate unbalanced line level audio output jack on the sound system mixer or amplifier Suitable connections are Ist Choice TAPE OUT or LINE OUT Jack 2nd Choice BOOSTER or BRIDGING Jack If your amplifier or mixer does not have RCA type connectors you can obtain adaptors from your Williams Sound Authorized Dealer or a local radio parts store If the TAPE OUT jack is already in use a Y Cord can be used to connect the MOD 1 anda second device to the same jack K 4 Williams Sound Helping People Hear Stereo Unbalanced Source For stereo sources use an additional RCA to RCA cable and connect the left and right signals to the two inputs on the MOD 1 They will be mixed into a mono signal for transmission Three Channel Unbalanced Source Left Right Center Channel Set the input level switch to Line Use the two unbalanced inputs and the XLR balanced input You will have to make an RCA to XLR adaptor cable To unbalance the XLR input wire XLR pin 2 to the positive audio pin on the RCA plug and wire XLR pin 1 and pin 3 together to the audio ground sleeve on the RCA plug The three signals will be mixed into a mono signal for transmission Balanced Line Level Source Set the Input Level Switch to Line The XLR input jack can be connected to any balanced line level audio signal It has an input
6. 75 Ohm orp Minneapolis Minnesota USA Made in U S A spade terminals supplied Connect one end of the zipcord to the transmitter power input screw terminals Connect the other end to the power supply screw terminals Make sure to switch AC power to the outlet OFF at the fuse or circuit breaker Remove the wallplate cover screw and plug the transformer into the outlet Secure the transformer with the cover plate screw Turn the AC power back on at the breaker box AFTER the transformer is installed The indicator light on the front panel of the TX3 will not glow unless there is a 95 kHz carrier This auto shut off feature preserves the life of the IR LED s and reduces power consumption when the transmitter is not in use The wall transformer can be plugged into a switched outlet that turns on when the other sound equipment is turned on This system is designed for Class 2 low voltage wiring Always follow local electrical codes when doing low voltage wiring Fig 10 TX3 Wiring Detail Baseband Output Connection Connect to MOD 1 here using RG 59 cable WG Williams Sound Helping People Hear Power Connection Plug in Power Supply V A Step 3 Step 3 95 kHz Carrier Cable Installation Step 1 Determine the length of RG59 coaxial cable needed to reach from the transmitter to the modulator unit The modulator is usually located near the other sound equipment to simplify audio connect
7. into the receiver EAR jack to charge the battery The CHG 1269 Multiple Charger can charge 12 receivers simultaneously through the receiver EAR jacks The receiver should always be turned OFF while charging It takes about 14 hours to fully charge the battery If the battery is providing very short service life under 1 hour of use let it drain completely by K 4 Williams Sound Helping People Hear leaving the receiver on for several hours and then immediately recharge it Receivers can be left charging continuously when not in use DO NOT ATTEMPT TO RECHARGE DISPOSABLE BATTERIES AVOID SHORTING PLUS AND MINUS BATTERY TERMINALS TOGETHER WITH METAL OBJECTS BATTERY DAMAGE AND BURNS CAN RESULT DO NOT MIX RECHARGEABLE BATTERIES amp CHARGERS FROM DIFFERENT MANUFACTURERS V A Suggestions for Receiver Management Different types of facilities will use different approaches for receiver management and earphone sanitation Following are some alternatives that other customers have used successfully 1 Regular users purchase their own receiver and take care of their own batteries and earphone 2 Some facilities label the receiver and earphone with the names of regular users so each person uses the same receiver and earphone 3 Ushers issue receivers to people who request them Earphones are sanitized after use Foam ear cushions can be replaced or washed with a mild detergent rinsed thoroughly and a
8. the front of the receiver is not covered up when in use The receiver is intended to be worn on the front of the body hanging from the ears Step 1 Battery Installation The RX1 uses two AAA Alkaline batteries To insert remove the cover press the batteries into place then replace the cover Step 2 Turn the power on by rotating the volume control Continue rotating until a comfortable volume level is reached To avoid draining the battery make sure the receiver is turned off when not in use Receiver Model WIR RX3 Make sure the eye on the front of the receiver is not covered up when in use The receiver is intended to be worn on the front of the body hanging from the lanyard attached to the receiver The receiver will not work if it is placed in a pocket or purse A variety of earphones headphones or a neckloop telecoil coupler can be used with the RX3 Receiver Step 1 Battery Installation Open the battery compartment by lifting the tab at the bottom of the receiver Press the battery into place observing proper battery polarity Step 2 Plug the earphone or headphone into the earphone jack Step 3 Turn the receiver on by rotating the volume control in the direction of the arrow on top of the case Turning the knob in the direction of the arrow will increase the volume Turning the knob against the arrow will decrease the volume To avoid draining the battery make sure the receiver is turned off when
9. the other on the right hand side The two transmitters will be connected together with a coaxial cable The infrared illumination pattern from a single transmitter is a cone shaped beam with a 50 angle The horizontal and vertical patterns are identical Figures 4 and 5 show examples of coverage patterns These patterns are the direct radiation pattern The infrared radiation does not drop to zero outside the illustrated patterns it decreases It still may be useable at a greater distance depending on receiver sensitivity and reflection characteristics of the room Infrared light reflects off light colored surfaces and scatters which increases the coverage area Dark colored surfaces tend to absorb infrared light minimizing reflections and limiting coverage to the direct illumination pattern It s O K and desirable for the illumination patterns to overlap when WG Williams Sound Helping People Hear I multiple transmitters are used Placing the transmitter high above the audience 15 to 30 feet and aimed slightly downward 5 to 15 will ensure g 35 Mounting Plate the longest throw of the infrared beam Angling Ballshaft the transmitter inward towards the center of the room also increases the coverage of the seating area Fig 7 SB 3 Wall Ceiling Mount Clamp Plate Remember that opaque objects block the infrared light Thus transmitters cannot be concealed behind an opaque
10. FY Williams Sound Helping Peop TX3 Front TX3 Rear TX3 Transmitter Step 1 Infrared Transmitter Power Input Two screw terminal strip for low voltage power Set Up supply 24VAC 50 or 60Hz SOVA Each TX3 requires a separate power supply Selecting a Transmitter Mounting Location Power Indicator LED front panel Saa Located on the front panel in the center of the LED Rule 1 The Williams Sound Infrared System window Red indicator light glows when power is on should not be installed outdoors or indoors and the 95 kHz carrier is present where there is considerable direct sunlight Sunlight generates infrared interference NOTE The TX3 shuts off when no 95 kHz carrier Certain types of high efficiency is present fluorescent lighting use 100kHz modulation that can also interfere with Modulation In j Connects to the Modulator Out jack of the MOD 1 en modulator or another TX3 transmitter Rule 2 The most important principle to understand when installing an infrared Modulation Out system is that invisible infrared light Connects to the Modulation In jack of of the next behaves just like visible light It does not TX3 transmitter in the chain when multiple pass through opaque objects like walls and transmitters are used curtains and people It does pass through MounkingBr cket windows and door openings and it can bounce and scatter off reflective walls floors and ceilings The IR transmitter panels can
11. Helping People Hear V A Step 2 Transmitter Power Wiring WARNING BE SURE AC POWER IS TURNED OFF AT THE OUTLET WHILE INSTALLING THE POWER TRANSFORMER A METAL COVER PLATE COULD SLIP AND SHORT ACROSS THE TRANSFORMER PLUG DURING INSTALLATION CREATING A SHOCK HAZARD SHORTING THE POWER SUPPLY TERMINALS WILL BLOW A NON REPLACEABLE INTERNAL FUSE DESTROYING THE POWER SUPPLY UNITI The TX3 transmitter is supplied with a low voltage wall transformer power supply The transmitter must be located within 6 feet of an AC wall outlet or the 24 Volt power cord must be extended Additional two conductor 18 ga zipcord is included with the transmitter If the transmitter power supply can be located near the modulator use the combination cable to carry the modulation signal and low voltage power to the transmitter The zipcord can be separated from the combination cable if the power supply is located near the transmitter DO NOT CONNECT THE POWER SUPPLY TO AC POWER YET Step 1 Determine the length of zipcord needed to reach from the transmitter to the AC wall outlet where the power supply will be plugged in Cut the zipcord to length Zipcord length must not exceed 200 feet Strip the ends and install the crimp on Itis normal for this unit Step 2 el warm while it is in WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE Modulation Out
12. impedance of 100 KOhms so it will not load the signal Balanced Microphone Source Set the Input Level switch to Mic Any low impedance balanced microphone can be plugged into the XLR input jack Simplex power is supplied for condenser microphones 4 or 8 Ohm Speaker Line Source Set the Input Level Switch to Line Wire an adaptor cable with the positive speaker line connected to XLR pin 2 Connect the negative or ground speaker line to XLR pin 3 25 or 70V Speaker Line Source Set the Input Level Switch to 70V Wire an adaptor cable with the positive speaker line connected to XLR pin 2 Connect the negative or ground speaker line to XLR pin 3 Hi Pass Filter Setting The normal setting is the center 175Hz position For language interpretation or visual description the 20Hz setting can be used For hearing assistance the 725Hz setting can be used to compensate for typical high frequency hearing loss Ask the users what sounds best to them V A Step 5 Testing the System Step 1 After the 95 kHz carrier cable power cables and audio source are connected turn the MOD 1 power switch on The green LED on the front of the MOD 1 should light Make sure the sound system is on and your audio source is active Adjust the Audio Level control on the front of the MOD 1 until the OK light flashes with the audio signal It is okay if the red Hi light flashes occasionally but it should not sta
13. ions 100 feet of coaxial cable is included with each transmitter You will need to cut it to length and install F connectors on both ends Additional RG59 coax can be added up to 1000 feet maximum Make sure you leave some slack at each end Install the F connectors on each end of the cable You will need a CATV type coax stripper and crimper Step 2 Connect the 95 kHz carrier cable to either Modulator Out jack on the MOD 1 modulator and to the Modulator In jack on the TX3 transmitter Step 3 If you are using more than one transmitter Step 1 Determine the length of coaxial cable needed to reach between the transmitters 100 feet of coaxial cable is included with each transmitter You will need to cut it to length and install F connectors on both ends Additional RG59 coax can be added up to 1000 feet maximum Make sure you leave some slack at each end Install the F connectors on each end of the cable You will need a CATV type coax stripper and crimper Step 2 Fig 11 Modulator Wiring Detail Connect the modulation cable from the Modulation Out Jack on the first transmitter in the chain the one connected to the MOD 1 Modulator to the Modulation In jack on the next TX3 transmitter in the chain Use the cable clamps and screws provided to secure the cable The coax can also be routed through conduit You can chain as many transmitters together as you need Remember that each transmitter needs its own power s
14. ir dried The EAR 022 Surround Earphone can be sanitized with an alcohol pad 4 The receivers are stored in a multiple compartment storage case with a credit card or driver s license left as collateral for the receiver 5 Regular users purchase their own earphone or headphone and bring them to use with receivers at the facility Troubleshooting Transmitter Power light not on 1 Make sure the wall transformer is plugged into the transmitter and the power switch or any remote power switch is on 2 Make sure the electrical outlet is on 3 Make sure the MOD1 is on The TX3 shuts off when there is no 95KHz modulation signal 4 Make sure the 24VAC power supplies are working No sound through receivers 1 If some of the receivers work but others don t check for bad batteries or earphones on the receivers that aren t working 2 If none of the receivers work check to see if the power and 95 kHz carrier cable are connected to the transmitter and the Power like is ON 3 Check to see if the modulator is connected properly to the sound system The audio level lights should be flashing on the modulator 4 Make sure the eye is not covered up on the receiver There must be clear line of sight between the receiver eye and the transmitter panel Sound through the receivers is weak and noisy 1 Hold a receiver in front of the Infrared Test LED on the front of the MOD 1 modulator and listen t
15. not be concealed or covered up The IR eye on the receiver unit cannot be covered up and works best with a clear line of sight to the transmitter panel s An omnidirectional mounting bracket is included with the Transmitter Positions are indicated for wall and ceiling mounts An optional tripod stand kit is also available WSC Part SS 2 Rule 3 If you are not getting sufficient coverage with a properly installed transmitter panel you need to add one or more additional transmitter panels 6 K 4 Williams Sound Helping People Hear W Fig 4 Infrared Illumination Pattern Fig 5 Maximizing Coverage Top Perspective Using Two Transmitters For Greater Coverage Area Fig 6 Side Perspective t Figures 4 5 and 6 illustrate infrared light patterns and recommended transmitter locations In listening areas up to 10 000 square feet the TX3 transmitter panel should be installed on the left or right side of the front wall of the listening area It needs to be above the audience to permit a direct line of sight between the transmitter and people wearing receivers when the people are standing or sitting It s helpful to think of the IR transmitter as an invisible floodlight You want to aim it so listeners are flooded with infrared light Many listening areas will require two IR transmitters for complete coverage Place one transmitter panel on the left side of the front wall and
16. not in use X A Williams Sound Helping People Hear ZU Receiver Model WIR RX4 The RX4 is a headset style receiver Make sure the eye on top of the receiver is not covered up when in use Step 1 Battery Installation Open the battery compartment by sliding the battery door open on the earpiece Press two AAA batteries into place observing proper battery polarity Slide the battery door closed taking care not to crush the plastic locking tabs Step 2 Turn the power switch on top of the receiver on Adjust the volume control wheel located on the bottom of the headset Battery Information for Receivers For the RX3 Receiver in normal use a heavy duty 9 Volt battery such as the Eveready 216 will last about 10 hours Alkaline batteries such as the Eveready 522 will provide about 17 hours of use For the RX4 alkaline AAA batteries will last about 20 hours If the sound becomes weak or distorted replace the battery The indicator light may still be on even with a battery that is weak Do not leave dead batteries in the receivers they may leak and damage the receiver Rechargeable Batteries The RX3 receivers can also use a rechargeable battery We recommend only the 7 cell 8 4 Volt types BAT 003 A fully charged battery Williams BAT 003 will provide about 5 hours of use per charge The battery may be recharged without removing it from the receiver The BAT 005 Single Charger has a cord that plugs
17. o the signal If the signal is weak and noisy here check the Input Level switch and Input Level Control settings Increase the input signal level from the sound system by turning up a mixer control If the signal sounds okay you may need to re position the transmitter panels or add additional panels Buzzing or humming noise in sound system 1 Check for ground loops or noise on the input signal Call your Authorized Dealer or Williams Sound for help Warranty Williams Sound Transmitters and Receivers are warranted against defects in workmanship and materials for FIVE YEARS Microphones earphones cables carry cases rechargeable batteries and chargers are warranted against defects in workmanship and materials for 90 DAYS This warranty does not extend to intentional or accidental physical damage This warranty applies only to products returned to Williams Sound for service To return a product for service call Williams Sound Corp at 1 800 843 3544 and request a Return Authorization RA number X A Williams Sound Helping People Hear SS SoundPlus WIR TX300 Infrared Listening System Specifications Infrared Audio Processor Modulator Model MOD 1 Dimensions Weight Color Rack Mount Power Modulation AGC Operating Req Front Panel Power Switch Power Indicator Audio Indicators 8 45 21 5 cm W x 8 18 20 8 cm D x 1 72 4 4 cm K 3 Ibs 1 5 kg Black epoxy paint with white legends
18. t signal High Pass Filter Three position switch provides 6dB octave low frequency roll off to reduce noise improve speech intelligibility compensate for typical high frequency hearing loss Modulator Outputs Two F type connectors provide 95 kHz frequency modulated outputs to feed two TX3 Transmitters Power Input Two screw terminals for low voltage power supply 24VAC 50 or 60Hz 2 4VA MOD 1 Infrared System Modulator Williams Sound x A Power Audio Level O OO Ok Hi Adjust Tape Infrared out Test Out O Audio Input Balanced Input Level mn Made in usa 1 Audio Inputs Unbalanced ps Pass Filter Out 175 FARE 20 Hz 1725 Hz 6dB octave Williams Sound Corp K4 Model WIR MOD1 Infrared System Modulator Modulator Modulator Power 24 VAC 50 60 Hz 10VA bool fn Iro 5 Ohm 75 Ohm Power 24 VAC 60 Hz 50VA WG Williams Sound Helping People Hear V A Fig 3 TX3 Front amp Rear vi e i i P a nn anamler Power Supply Wiring Use NEC Class 2 Wiring 18 ga Min 200 ft Mex Length 18 ga intemal Fuse 1 25 A 250V 3AG Modulation Signal Wiring Use RG59U Coax t Max Length Note Itis normal for this unit to feel warm while it isin operation Modulation Out Modulation in q5 Ohm 75 Ohm Wiliams Sound Corp Minneapolis Minnesota USA
19. the Transmitter via a coaxial cable The Transmitter emits invisible infrared light into the listening area Infrared receivers detect the transmission and convert the light signals back into audio signals The system is designed to broadcast high quality audio for hearing assistance and language translation applications Because the system uses infrared light for transmission it is not affected by interference from radio equipment and does not interfere with radio equipment Fig 1 Typical System Configurations 1 Modulator and 1 Transmitter Mod Out 1 Modulator and 2 Transmitters Power Supply A single TX3 infrared transmitter will cover approximately 10 000 square feet of listening area Larger areas can be covered with additional transmitters The transmission is confined within opaque walls if security is an issue such as courtrooms and corporate boardrooms The Williams Sound Infrared System can also be used where multiple systems are needed in adjacent rooms such as movie theaters and conference centers without spillover from adjacent rooms The system can be used with a microphone as a stand alone system or it can be connected to an existing sound system Infrared Systems cannot be used in bright sunlight which contains large amounts of interfering infrared light ittttt titi tity P llama Sauna ba ba Power Supply TX3
20. tion signal to drive the next transmitter in the chain Red LED visible in center of window also indicates 95 kHz signal is present Iwo sets of threaded holes for use with omnidirectional mount included two threaded holes on sides of the cabinet or Tripod Stand Kit F type connector 75Q 95kHz FM 0 5V P P signal from MOD 1 Modulator F type connector 75Q 95kHz FM 0 5V P P signal output to additional TX3 2 conductor screw terminals RG 59 Coax F connectors NEC Class 2 wiring 2 conductor 18 ga min 200 foot 61 m max length for 18 ga wire each TX3 Transmitter requires its own 24VAC Power Supply 15 V A 10321 West 70th Si Eden Prairie MN 55344 3446 U S A 8600 843 3344 952 943 2252 FAX 952 943 2174 1996 Williams Sound Corp MAN 046C F Williams Sound Corp
21. upply Audio Input Balanced YPY Model WIR MOD1 Infrared System Modulator Modulator Audio Inputs pe Pass Filter Out Unbalanced Left O Input Level mM FR 75 Hz 20 Hz _ 725 Hz 6dB octave Made in a Williams Sound Corp Modulator Out Power 24 VAC 50 60 Hz IOVA Baseband Output Connection Connect to TX3 here using RG 59 cable Power Connection Plug in Power Supply X A Williams Sound Helping People Hear SSC Step 4 MOD 1 Modulator Installation Location The Modulator is usually located near the sound system amplifier or mixer for easy access to an audio input signal For portable systems the modulator can be placed near the transmitter or wherever is most convenient Power Connection Step 1 Connect the power supply wires to the two center screw terminals on the terminal block located on the rear of the Modulator Step 2 Plug the power supply into an AC outlet 95 kHz Cable Connection Connect the coaxial cable to either F type Modulator Out jack on the MOD 1 For systems having multiple transmitters both modulator outputs can be used to run a separate coax cable to transmitters on each side of a stage screen etc The MOD 1 drives one transmitter per modulator output The transmitters then repeat the 95 kHz signal so any number of transmitters can be used The modulator outputs CANNOT be split with CATV splitters Audio Connection Mono Unbalanced Source
22. walls curtains etc Neither should transmitters be used in areas of extreme high or low temperatures humidity or chemical environments Mounting the TX3 to a wall or ceiling Tension Serw Step 1 Use the 5 32 allen wrench to loosen the tension bolt in the clamp assembly enough to release the ball DO NOT unscrew the tension bolt completely Using the mounting plate as a template mark the hole locations on the mounting surface Use fasteners appropriate for the mounting surface wood screws lag bolt wall anchor to attach the mounting plate Recommended fastener size is 1 4 Step 2 Attach the clamp plate to the rear of the transmitter using 2 1 4 x 20 x 1 2 socket head screws and 3 16 hex wrench provided Place the mounting plate in the position indicated for ceiling or wall mounting Step 3 Place the transmitter clamp plate assembly onto the the mounting plate ballshaft Aim the transmitter at the desired downward angle and support it fully while using the hex wrench to tighten the tension screw Fig 9 Bracket 012 Wall Mounting After initial installation the ball will slowly compress under pressure Check F the tension screw after 15 minutes and re tighten if necessary DO NOT over tighten If rotational adjustment is required use a anou 7 16 open end wrench to loosen the jam nut on the ballshaft Rotate the transmitter i ey ne and re tighten the jam nut 8 GT Williams Sound
23. y lit constantly If you can t get the Ok light to come on make sure the Input Level switch is set properly If it is you need to boost the signal source Step 2 Step 3 Look at the transmitter panel s With the modulation signal and power connected a red light should be visible in the center of the panel Hold a receiver near the Infrared Test Out hole on the front of the MOD 1 Turn the receiver on and adjust the volume You should be able to hear the audio signal through the receiver If not make sure the audio Ok light is still flashing If the light is not flashing check your audio source or the setting of the input level switch and input level control If the audio light is flashing but you don t hear anything from the receiver try a different receiver to make sure the receiver is working Step 4 Step 5 Take a receiver into the listening area and walk around to check the reception Make sure the eye on the receiver is not covered up when in use The receiver will not work if it is placed in a pocket or purse The receiver eye must be able to see the transmitter panel It may be necessary to adjust the angle of the transmitter s to obtain the best coverage If coverage is not adequate additional transmitter panels must be used Receiver Operating Instructions Receiver Model WIR RX1 The RX1 is a stethoscope style receiver with built in earphones Make sure the eye on
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