WIR TX75 PRO - Williams Sound
Contents
1. A157 WIR TX75 PRO Infrared Transmitter Optional WIR TX75 S Emitter for Additional Coverage For larger facilities additional emitters can be used to increase the total coverage area The WIR TX75 is capable of driving two WIR TX75 S slave emitters Power baseband and digital data bus are fed via CAT 5e cable to each TX75 S slave Figure 2 overlapping illumination patterns to cover larger listening areas WACA Figure 3 coverage area with second emitter added to same emission point 50 increase FEET 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 50 40 30 20 10 7 Figure 5 WIR TX75 PRO master and two WIR TX75 S slaves at an angle of 35 to each other Control Panel WIR TX75 PRO Infrared Transmitter Connect Power WARNING MAINS VOLTAGE MUST NOT FALL BELOW 100VAC OR SYSTEM PERFORMANCE WILL BE GREATLY REDUCED UNIT MAY ENTER RESET MODE UNTIL POWER IS RESTORED 1 Plug the power supply output cord into Power In on the WIR TX75 2 Attach a line cord to the power supply 3 Plug the power supply into the AC outlet TFP 046 100 240 VAC IN 50 60 Hz This system is designed for class 2 low voltage wiring Always follow local electrical codes when using low voltage wiring Green Power The WIR TX75 PRO is equipped with a sleep power save feature If no audio is present on either channel for three minu2. Once a master and slave unit are connected the yellow and green indicators located on the to slave and Master In jacks mimic each other This allows the user to know the status of the entire system by simply looking at the indicators on the back of the master unit A switch is provided to turn off all indicator lights AFTER initial set up to allow for less conspicuous operation Note The WIR TX75 PRO will automatically detect and adjust for differences in CAT 5e cable length Matching cable lengths to the slaves is not necessary Cable length up to 100 feet may be used Figure 9 Connecting a WIR TX75 PRO master transmitter to two WIR TX75 S slave emitters TX75 PRO MASTER POWER AC POWER SOURCE MICROPHONE ELECTRET AUDIO SOURCE TX75 S SLAVE 1 TX75 S SLAVE 2 MM OPTIONAL OPTIONAL Troubleshooting For easier troubleshooting the TX75 units are equipped with a series of self tests and indications Please see WIR TX75 PRO indicator lights table on page 12 to aid in troubleshooting The WIR TX75 PRO Power Indicator is not lit e Make sure the power supply is plugged into the transmitter and any remote power switch is on e Set the Indicators switch on the back panel to On e Make sure the electrical outlet is on e Make sure the 48 VDC power supply is working The WIR TX75 PRO s Ch1 or Ch2 Audio level Indicator does not light e Make sure the WIR TX7
3. Warranty 5 Years Approvals CE C tick FCC Industry Canada WEEE RoHS CB Scheme Compatible Receivers WIR RX22 4 WIR RX18 WIR RX15 2 NOTE Specifications subject to change without notice Visit our website for the latest specifications and publications www williamssound com 15 WIR TX75 PRO Infrared Transmitter Limited Warranty Williams Sound products are engineered designed and manufactured under carefully controlled conditions to provide many years of reliable service Williams Sound warrants the WIR TX75 PRO infrared listening system against defects in materials and workmanship for five 5 years During the first five years from the purchase date we will promptly repair or replace the WIR TX75 PRO infrared listening system Microphones earphones headphones batteries chargers cables carry cases and all other accessory products carry a 90 day warranty WILLIAMS SOUND HAS NO CONTROL OVER THE CONDITIONS UNDER WHICH THIS PRODUCT IS USED WILLIAMS SOUND THEREFORE DISCLAIMS ALL WARRANTIES NOT SET FORTH ABOVE BOTH EXPRESS AND IMPLIED WITH RESPECT TO THE WIR TX75 PRO INFRARED LISTENING SYSTEM INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WILLIAMS SOUND SHALL NOT BE LIABLE TO ANY PERSON OR ENTITY FOR ANY MEDICAL EXPENSES OR ANY DIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY ANY USE DEFECT FAILURE OR MALFUNCTIONING OF THE PRODUCT WH
4. minimum 1 Ch mode 0 7 W 12 000 sq ft in single channel mode with the RX22 4 receiver 464 sq m 5 000 sq ft in single channel mode with the RX15 2 receiver 279 sq m 4 000 sq ft in single channel mode with the RX18 receiver 186 sq m Audio Inputs Controls Line inputs Phoenix jack for Ch1 and Ch2 accept line level balanced or unbalanced audio Microphone input 3 5 mm stereo jack with signal and bias connected to tip electret microphone compatible 4 VDC bias supply with 2 7k ohm series resistor Microphone gain adjust Rotary potentiometer Microphone channel switch Sets microphone input to Ch1 or Ch2 Audio indicators Yellow LED blinks at nominal audio level One per channel Indicators On Off 2 position switch turns on off indicator lights to slave Output Input 2 8p8c RJ45 connectors output 48VDC 0 4A power baseband RF and a bi directional RS 485 bus for control and status communications Slave Status Indicators on to slave jacks Green Power Unit Status Yellow Transmit Cable Status Signal to Noise Ratio 70 GB line input Frequency Response 95Hz to 17 6kHz 3dB re 1kHz line inputs 125Hz to 17 0KHz 3dB re 1kHz microphone input Total Harmonic Distortion lt 1 1 kHz nominal deviation line or microphone input 14 WIR TX75 PRO Infrared Transmitter Operating Requirements 0 50 C 32 122
5. WIR RX18 Receiver FREQUENCY SELECTION SWITCH 2 3 MHz STEREO 2 8 MHz VOLUME CONTROL 23028 D e rf BALANCE t BATTERY 13 CONTROL L BAT AP07D WIR TX75 PRO Infrared Transmitter WIR RX22 4 Receiver CHANNEL SELECTOR EARPHONE JACK ON INDICATOR SounDPLus IR TECHNOLOGY ON OFF VOLUME SWITCH WILLIAMS SOUND A162 NOTE On the RX22 4 channel 1 2 3 MHz channel 2 2 8 MHz channel 3 3 3 MHz and channel 4 3 8 MHz Infrared Transmitter Specifications Model WIR TX75 PRO Master Dimensions Weight 10 0 W 25 4 cm x 3 1 D 7 9 cm x 1 5 H 8 8 cm w o faceplate or 2 5 H 6 4 cm w faceplate 0 6 lbs 0 3kg Color Black with silver colored silk screen and silver colored faceplate Optional white colored faceplate Power Supply Desktop style international power supply with IEC line cord 100 240 VAC input 50 60Hz 24W 48VDC output DC Power Input Power Indicator 2 5mm ID barrel connector 48 VDC 0 4A center positive Green LED Sleep Power Save Mode Shuts off carrier when no audio is present for 3 minutes Modulation FM Wideband 50kHz deviation max 50 uS pre emphasis Carrier Frequencies TX 750 2 3MHz Ch1 and 2 8MHz Ch2 TX 75d 3 3MHz Ch1 and 3 8MHz Ch2 Default at power on carriers off Carriers are automatically enabled upon presence of audio Emitter IR Power Master Only Coverage Area
6. 4 receiver 464 sq m 5 000 sq ft in single channel mode with the RX15 2 receiver 279 sq m 4 000 sa ft in single channel mode with the RX18 receiver 186 sq m Master Slave Coverage Area If slave transmitters are aimed to maximize coverage area so that their coverage areas minimally overlap that of the master minimum 1 ch mode 24 000 sq ft in single channel mode with the RX22 4 a master and 1 slave transmitter 929 sq m 36 000 sa ft in single channel mode with the RX22 4 a master and 2 slave transmitters 1 393 sq m Indicators On Off 2 position switch turns on off indicator lights Signal to Noise Ratio 70 dB line input Frequency Response 95Hz to 17 6kHz 3dB re 1kHz line input 125Hz to 17 0kHz 3dB re 1kHz microphone input Total Harmonic Distortion lt 1 1 kHz nominal deviation line or microphone input From Master Input 8p8c RJ45 connector input provides 48VDC 0 4A power baseband RF and a bi directional RS 485 bus for control and status communications Slave Extension Cable CAT 5e or better cable maximum 100 length with RJ 45 8P8C male connector on each end TIA568B Slave Status Indicators Green Power Unit Status on to slave jacks Yellow Transmit Cable Status Operating Requirements 0 50 C 32 122 F Mounting Kit Wall or Ceiling mount BKT 024 Omnidirectional mount Optional slave linking bar MLB 003
7. AAA dt EEE 12 TrOUDIESHOO ND cio ARA A a NEE ee AA ATA E 13 Optional Receivers cio lente te pr da Ei Di A elie th ala etn Danian ee araia 14 Limited Warranty cs cc ii A dete ve Seascale aa tee ata Sa nea tee ee ee 15 PRO Infrared Transmitter Specifications Model WIR TX75c WIR TX75d Master ccocccccciocococooooononononononononnononononcnnnnss 16 Infrared Transmitter Specifications Model WIR TX75 S Slave ooooooocooconocicocococococoonononononononncoconacananano no nono nono no rn cn rn rnnnnnnanos 17 WIR TX75 PRO Infrared Transmitter Important Safety Instructions Please read and keep these instructions CAT 5e CABLE SAFETY A CAUTION Do NOT plug the WIR TX75 PRO master CAT 5e RJ45 cable into anything other than the WIR TX75 S slave s The TX75 PRO CAT 5e RJ 45 connection is proprietary and is NOT compatible with ethernet or any other RJ 45 systems Failure to comply with this caution can destroy this or other equipment and will void the warranty Receiver Safety Warnings HEARING SAFETY A CAUTION Many Williams Sound receivers are designed to amplify sounds to a high volume level which could potentially cause hearing damage if used improperly To protect your hearing and the hearing of others 1 Make sure the volume is turned down before putting on the earphone or headphone only then adjust the volume to a comfortable level 2 Set the volume level at the minimum setting that you need to
8. If these instructions do not address your problem or the issue persists please call your authorized Williams Sound dealer or representative WIR TX75 PRO Indicator lights INDICATOR ON UNIT STATE DESCRIPTION On steady Unit is powered and actively transmitting Power Indicator Green Fade on Fade off continuous Unit is powered and in sleep power save mode no audio signal Master or Slave dee ape round or rectangle detected unit is not transmitting Fast blink continuous Self test has detected an internal failure on this unit Blinking periodically Audio is present on this channel and is set to the optimum level Audig Level Indicators Yellow Master On steady or most of the time Audio is present on this channel but the level is too high round ch1 or ch2 Off Audio is not present OR audio level is too low on this channel On steady Carrier signal is being sent to this slave Slave Status Indicator Yellow Off No carrier signal is being sent to this slave rectangle Master or Slave 9 Fast blink continuous Self test has detected a CAT 5e cable failure between the master and this slave unit On for 2 seconds Off for 1 Initial power on sequence OR unit has reset second resumes normal states All indicators Master or Slave On for 2 seconds Off for 1 Unit is continuously resetting may be due to a low voltage supply second continuous condition In Master bad power supply In Slave bad CAT 5e
9. cable or CAT 5e cable is too long NOTE The indicator lights can all be turned off AFTER initial set up to allow for less conspicuous operation Mounting Options BKT 024 Universal wall ceiling mount included LB 003 Linking Bar 2 1 2 bar with 1 4 20 threaded male connectors on both ends optional for stacking master and slave together The TX75 and TX75 S can be mounted on any camera tripod stands with a 1 4 20 threaded connector The TX75 and TX75 S can be operated with or without the faceplate if desired The faceplate can be removed and painted to match room decor Lightly sand faceplate with 400 grit sandpaper apply primer and two coats of final color Do not paint the infrared lens behind the faceplate of the TX75 or TX75 S 12 WIR TX75 PRO Infrared Transmitter Accessories IC 027 Hand held unidirectional microphone IC 090 Lavaliere microphone IC 100 Rear wear headset microphone PLE 078 SIL Silver Faceplate included PLE 078 WHT White Faceplate optional WCA 051 Female XLR to Phoenix 3 Stereo RCA cable WCA 096 12 CAT 5e cable for connection to slave emitter optional WCA 091 25 CAT 5e cable for connection to slave emitter optional Optional Receivers WIR RX15 2 Receiver LEFT INFRARED RIGHT SENSOR POWER CHANNEL SWITCH ae POWER CHANNEL COVER VOLUME INDICATOR KNOB MONITOR MUTE BUTTON AUDIO INPUT JACK A169
10. hear 3 If you experience feedback a squealing or howling sound reduce the volume setting and move the microphone away from the earphone or headphone 4 Do not allow children or other unauthorized persons access to this product BATTERY SAFETY AND DISPOSAL A CAUTION Williams Sound receivers are supplied with non rechargeable alkaline batteries Do not attempt to recharge non rechargeable batteries they may explode release dangerous chemicals cause burns or cause other serious harm to the user or product PACEMAKER SAFETY A CAUTION If you have a pacemaker or other medical device make sure that you are using the Williams Sound receiver in accordance with safety guidelines established by your physician or the pacemaker medical device manufacturer Transmitter Safety Warnings WARNING To reduce the risk of fire or electric shock do not expose the system to rain or moisture Do not use this apparatus near water The system should not be exposed to dripping or splashing and objects filled with liquids such as beverages should not be placed on the transmitter or receivers Clean only with a dry cloth A RISK OF ELECTRICAL SHOCK DO NOT OPEN A A RIQUE DE CHOC ELECTRIQUE NE PAS OUVRIR A CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO ATTENTION POUR REDUIRE LE RISQUE DE DECHARGE ELECTRIQUE NE a i RETIREZ PAS LE COUVERCLE OU COTES IL NE SE TROUVE AL INT RIEUR NOL SNE Tne COVED Gi ANTE oe SER ESO AUCUNE PIECE POUVA
11. the household trash Take the equipment to a electronics X Product Recycling for Customers in the European Union recycling center or return the product to the factory for proper disposal PE WIR TX75 PRO Infrared Transmitter System Overview The WIR TX75 PRO is a two channel PRO infrared transmitter combining infrared modulator and emitter technology into a single mountable enclosure which reduces operating costs eliminates the need for rack space and eases set up The WIR TX75e PRO Infrared Transmitter includes phoenix connectors for the line inputs and provides two channels 2 3 MHz and 2 8 MHz The WIR TX75d PRO Infrared Transmitter includes phoenix connectors for the line inputs and provides two channels 3 3 MHz and 3 8 MHz The WIR TX75 PRO is ideal for high quality audio programs such as music theater and audio description The WIR TX75 PRO will accept any line level balanced or unbalanced audio inputs Infrared receivers detect the transmission and convert the light signals back into audio signals The WIR TX75 PRO operating frequencies 2 3 2 8 3 3 3 8 MHz minimize high efficiency lighting interference Up to two slave emitters can be added for additional coverage Power baseband and digital data are fed to the slave emitters via a single CAT 5e cable for each emitter No additional cables are required No FCC license or radio approval is required with this equipment It can be used anywhere in the wor
12. 5 PRO is plugged in e Set the Indicators switch on the back panel to On e Make sure the audio input is connected properly Refer to figures 6 7 8 or 9 depending on the connection being used e Make sure an active and adequate level audio signal is being sent to the WIR TX75 PRO transmitter 11 WIR TX75 PRO Infrared Transmitter No Sound through Receivers e Check to make sure the receiver is operating on the same frequency as the transmitter e If some of the receivers work but others don t check for bad batteries or earphones e f none of the receivers work check to see if the power and audio input cables are connected to the transmitter Verify that the Power Indicator is on steady and ch1 or ch2 audio level indicator blinks periodically e Check to see if the transmitter is connected properly to the audio source The audio level indicators should flash on channels that have audio e Make certain the transmitter is not covered by objects which would block infrared light Sound Through the Receivers is Weak and Noisy e Try adjusting the audio input level see page 10 If the signal sounds okay you may need to reposition the transmitter beam or add additional TX75 S slave emitters to the WIR TX75 PRO system Buzzing or Humming Noise in Sound System e Check for ground loops or noise on the input signal e Check to make sure the balanced unbalanced switch is in the correct position
13. ETHER A CLAIM FOR SUCH DAMAGES IS BASED UPON WARRANTY CONTRACT TORT OR OTHERWISE THE SOLE REMEDY FOR ANY DEFECT FAILURE OR MALFUNCTION OF THE PRODUCTS REPLACEMENT OF THE PRODUCT NO PERSON HAS ANY AUTHORITY TO BIND WILLIAMS SOUND TO ANY REPRESENTATION OR WARRANTY WITH RESPECT TO THE WIR TX75 PRO INFRARED LISTENING SYSTEM UNAUTHORIZED REPAIRS OR MODIFICATIONS WILL VOID THE WARRANTY The exclusions and limitations set out above are not intended to and should not be construed so as to contravene mandatory provisions of applicable law If any part or term of this Disclaimer of Warranty is held to be illegal unenforceable or in conflict with applicable law by a court of competent jurisdiction the validity of the remaining portions of this Disclaimer of Warranty shall not be affected and all rights and obligations shall be construed and enforced as if this Limited Warranty did not contain the particular part or term held to be invalid If you experience difficulty with your system call toll free for customer assistance 1 800 843 3544 U S A or 1 952 943 2252 outside the U S A If it is necessary to return the system for service your Customer Service Representative will give you a Return Authorization Number RA and shipping
14. F Mounting Kit Wall or Ceiling mount BKT 024 Omnidirectional mount Optional slave linking bar MLB 003 Warranty 5 Years Approvals CE C tick FCC Industry Canada WEEE RoHS CB Scheme Compatible Receivers WIR RX22 4 WIR RX18 WIR RX15 2 NOTE Specifications subject to change without notice Visit our website for the latest specifications and publications www williamssound com Infrared Emitter Specifications Model WIR TX75 S Slave Dimensions Weight 10 0 W 25 4 cm x 3 1 D 7 9 cm x 1 5 H 3 8 cm w o faceplate or 2 5 H 6 4 cm w faceplate 0 6 lbs 0 3kg Color Black with silver colored silk screen and silver colored faceplate Optional white colored faceplate Sleep Power Save Mode Shuts off carrier when no audio is present for 3 minutes Modulation FM Wideband 50kHz deviation max 50 uS pre emphasis Carrier Frequencies TX 75c 2 3MHz Ch1 and 2 8MHz Ch2 passed through slave TX 75d 3 3MHz Ch1 and 3 8MHz Ch2 passed through slave Default at power on carriers off Carriers are automatically enabled upon presence of audio Emitter IR Power 0 7 W Slave Coverage Area Note Slave emitter cannot be used without a master transmitter but if the slave emitter is aimed so that its coverage area does minimum 1 ch mode not overlap that of the master on its own it will provide 12 000 sa ft in single channel mode with the RX22
15. NT ETRE REPAREE PAR L USAGER S A DRESSER A PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL UN AEPARATEUR COMP TENT WIR TX75 PRO Infrared Transmitter Servicing or attempting to service this device will void the warranty Refer servicing to qualified personnel Servicing is required when the system has been damaged in any way if liquid has been spilled or objects have fallen into the unit if the unit has been exposed to moisture if the unit does not operate normally or if the unit has been dropped Do not block any ventilation openings Install in accordance with manufacturers instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produces heat Use only attachments accessories specified by the manufacturer Unplug the transmitter during lightning storms or when unused for long periods of time Be advised that different operating voltages require the use of different types of line cord and attachment plugs Check the voltage in your area and use the correct type Use only the power supply provided by Williams Sound Other power supplies may have similar specifications but may not be equivalent in emissions ratings in rush current etc Use of an unapproved power supply may leave the device partially or completely inoperable and will void the warranty This apparatus has been designed with class 1 construction and must be connected to a main socket outlet with a pr
16. WS WILLIAMS SOUND WR TX75 PRO Infrared Transmitter 2 32 8 3 3 3 8 MHz USER MANUAL WIR TX75 PRO Infrared Transmitter WIR TX75c WIR TX75d PRO Infrared Transmitters Contents Important Safety INStrUCTIONS 0000 en rn nn rr 3 CAIEDS CADIS Sale eck iid fois tide cates seb nen chante teste Piha teehee eset deanna a cp becea dite schien nidiatiaectienA seve a teieadyencr 3 Receiver Safety WamingS riipi irice a a daa 3 Hearing Safety is A AAA AA A AS A AAA AA tg 3 Battery Safety and DISPOSal iii a aid 3 CS E deta denensdetah E E E E cadvassagheade cacldteacecasitiaseceaiean gatas teats 3 Transmitter Safety Warnings ci twee a EVE A a E AEA A a 3 RScyclIMgiNSIFUCUOA Si nerie A A A a A O cares AA Meee 4 System OVA Wii ie EA Henle arti drat aera ens 5 Installation Procedures zir cti vias aaa A a AEE a EE EE a codesh ied anda tada Ae tocas 6 Determine Coverage AA a i a ee i ee cet eae ea ele 6 Optional WIR TX75 S Slave Emitter for Additional COVEraQl ocoococococcccncconononnccnnnanononnnnnanan ona nc conan nn nn rca SEEE ES EEEE EEES SEEE canarias 7 Gontrol Pai A A AA ii 9 COMETE ROWS seara li dd a ai Ei E id tae AA tt lea ii 10 COMMECT AUGIOSOUl CO rae tees et nals o O A id da weout no 10 Adjustihe Audio Laval ici a id linia 10 Connecting Mastercand SlaveiW nits saladas iia osas nt Aaa tn 11 WIR TX75 PRO IMdiCators iio cd dto dt 12 Mounting Options st vito aaa lite ra 12 ACCOSSOMOS tic id A Ad as ROI T A
17. instructions Pack the system carefully and send it to Williams Sound Attn Repair Dept 10300 Valley View Road Eden Prairie MN 55344 USA Your warranty becomes effective the date you purchase your system If your sales receipt is not available the date code on the product will determine your warranty status WS WILLIAMS SOUND 10300 Valley View Rd e Eden Prairie MN 55344 800 328 6190 952 943 2252 e FAX 952 943 2174 www williamssound com 2015 Williams Sound LLC All Rights Reserved MAN 166E
18. ld NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area may cause interference in which case the user will be required to correct the interference at his own expense NOTE A PLASMA MONITOR OR TELEVISION CAN DEGRADE THE AUDIO QUALITY OF THE WIR TX75 PRO TRANSMITTER FOR BEST PERFORMANCE THE TRANSMITTER SHOULD BE POSITIONED AS FAR AWAY AS POSSIBLE FROM ANY PLASMA MONITOR OR TELEVISION WIR TX75 PRO Infrared Transmitter Installation Procedures Determine Coverage Area When using the WIR TX75 PRO transmitter in single channel mode with the RX22 4 receiver the system coverage area will exceed 5000 ft 185 m2 WIR TX75 PRO units automatically adjust to give the best coverage area possible in both 1 channel and 2 channel modes Figure 1 illustrates typical coverage pattern for the TX75 This can be affected by direct indirect sunlight reflections on walls and room construction Reflections of the infrared light from walls ceilings and floors may change these
19. n and connect your audio source s to the appropriate phoenix connectors jack s No adjustment needs to be made for balanced or unbalanced inputs this is internally detected amp managed See figures 7 amp 8 for balanced and unbalanced cable configurations Microphone Source 3 5mm Mono Plug Plug an electret microphone into the 3 5mm Mic In jack MIC 027 MIC 100 or MIC 090 To assign the microphone to Ch 1 use the Mic Channel Switch to select 2 3 on the TX 75c or 3 3 MHz on the TX 75q To assign the microphone to Ch 2 use the Mic Channel Switch to select 2 8 on the TX 75c or 3 8 MHz on the TX 750 WIR TX75 PRO Infrared Transmitter Figure 7 Balanced line out XLR to WIR TX75 PRO line input Phoenix Contact connector cable FEMALE XLR PHOENIX 2 CONDUCTOR WITH SHIELD RED Y RED IN PHASE La gt TOTX75 el BLACK SHIELD CONNECTED TO GND BLACK SIGNAL ON TX75 CABLE END 1 SHIELD 2 RED SIGNAL IN PHASE 3 BLACK SIGNAL Figure 8 Unbalanced line out XLR to WIR TX75 PRO line input Phoenix cable FEMALE XLR PHOENIX 2 CONDUCTOR WITH SHIELD F RED a Y lt RED IN PHASE TO TX75 el SHIELD NOT CONNECTED BLACK SIGNAL ON TX75 CABLE END 1 SHIELD 2 RED SIGNAL IN PHASE 3 BLACK SIGNAL Adjust the Audio Level Line Level Source After an audio signal has been connected to the transmitter adju
20. otective ground connection the third grounding prong Protect the power cord from being walked on or pinched particularly at plugs receptacles and near the power jack on the transmitter This apparatus must be grounded The MAINS plug or an appliance coupler is used as the disconnect device so the disconnect device should remain readily operable For Customers in The United States WARNING Use a three wire grounding type line cord as is supplied with the product Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet This equipment has been tested and found to comply with the limits for Class B digital device pursuant to part 15 of the FCC rules For Customers in Canada This Class B digital device meets all requirements of the Canadian Interference causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigencies du R glement sur le mat riel brouilleur du Canada Recycling Instructions Ay A Help Williams Sound protect the environment Please take the time to dispose of your equipment properly Please do NOT dispose of your Williams Sound equipment in
21. patterns Important Remember to point the transmitter towards the listening audience Remember Most objects block infrared light The transmitter cannot be concealed behind walls glass curtains etc 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 the receiver sensitivity and the reflective characteristics of the room Reflections of the infrared light from walls ceilings and floors may change these patterns The TX75 can be operated with or without the faceplate if desired The faceplate can be removed and painted to match room decor Lightly sand faceplate with 400 grit sandpaper apply primer and two coats of final color Do not paint the infrared lens behind the faceplate of the TX75 Figure 1 Receiver coverage area with WIR TX75 PRO transmitter OR WIR TX75 S slave emitter in single channel mode RX18 RECEIVER RX15 2 RECEIVER 7 RX22 4 RECEIVER FEET 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 40 30 s n s f m p a a A RA aE O O PA o amm Sa y A a s 20 7 ee E x Pr toate N s eS i 4 10 P E 1 1 1 1 1 1 0 I 1 1 I I 1 1 x Y ae Al 1 s sese iss 1 s ot e RK eee a at y FER TT a fr er S st y lo ra mes a lo e z
22. st the audio source gain until the WIR TX75 PRO audio level indicator for that channel blinks periodically Microphone Source Speak into the microphone from a normal distance and at a natural voice level Use the microphone gain adjustment on the TX75 to set the gain to the point where the audio level indicator on the selected channel blinks periodically If the audio level indicator is always on or on most of the time the level is too high If the audio level indicator is never on the level is too low Connecting Master and Slave Units Connect all WIR TX75 PRO master and WIR TX75 S slave s units together using CAT 5e cables the to slave jacks on the master and the Master In jack on the slave s For systems with no slave units the CAT 5e cables and to slave jacks are not used For systems with one slave unit either out 1 or out 2 may be used When a cable is plugged into a to slave jack the master unit will automatically detect mis wired intermittent or bad CAT 5e cables a yellow status indicator light will blink on that channel s to slave jack to indicate any problem See WIR TX75 PRO Indicators table on page 12 for instructions on how to read indicator lights The WIR TX75 PRO automatically detect when slave units are plugged in establishes a data link to verify operation monitors status and enables baseband output to the slave emitter s 10 WIR TX75 PRO Infrared Transmitter
23. tes the transmitter will automatically go into sleep power save mode This mode decreases power consumption by 80 percent Units will automatically start up when audio is activated This sleep power save feature can be disabled Contact Williams Sound for instructions On power up the WIR TX75 PRO performs a self test to detect damage due to shipping handling tampering or incorrect operation If any failure is present green indicator lights will blink See WIR TX75 PRO Indicators table on page 12 for instructions on how to read indicator lights Connect Audio Source Automatic Channel Detection Shutdown The WIR TX75c offers two carrier frequencies Ch 1 2 3 MHz and Ch 2 2 8 MHZ The WIR TX75d offers two carrier frequencies Ch 1 3 3 MHz and Ch 2 3 8 MHZ Either unit automatically detects the presence of audio on the microphone and phoenix audio inputs and transmits on either both channels when an audio signal is present on that channel If audio is present on both the microphone and phoenix jack for a given channel the audio signals will be mixed When no audio signal is present on a channel for three minutes the TX75 will shut down that channel Operating the WIR TX75 PRO in single channel mode provides a 40 percent increase in range over two channel mode Line Level Source Phoenix connectors The WIR TX75 PRO will accept line level balanced or unbalanced audio inputs Select the frequency ies you wish to transmit o
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