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WIR TX75/b

Two-Channel Infrared Transmitter

MAN 166C

Manual and User Guide

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Summary of Contents for TX75/b

Page 1: ...WIR TX75 b Two Channel Infrared Transmitter MAN 166C Manual and User Guide ...

Page 2: ...ures 6 Determine Coverage Area 6 Optional WIR TX75 S Slave Emitter for Additional Coverage 7 Control Panel 9 Connect Power 10 Connect Audio Source 10 Adjust the Audio Level 10 Connecting Master and Slave Units 11 WIR TX75 Indicators 12 Mounting Options 12 Accessories 12 Troubleshooting 13 Optional Receivers 14 Limited Warranty 15 SoundPlus Infrared Transmitter Specifications Model WIR TX75 16 Soun...

Page 3: ...product BATTERY SAFETY AND DISPOSAL 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 CAUTION If you have a pacemaker or other medical device make sure that you are using the Williams ...

Page 4: ... 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 c...

Page 5: ...ble 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 world 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 equipmen...

Page 6: ...e 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 patt...

Page 7: ...f 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 A158 Figure 3 coverage area with second emitter added to same emission point 50 increase 0 10 20 30 40 50 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 A156 230 FEET MA...

Page 8: ...6 WIR TX75 master rear view POWER IN MIC CHANNEL SELECTOR LINE IN BALANCED UNBALANCED SELECTOR TX75 BUS OUT TO SLAVE 1 TX75 BUS OUT TO SLAVE 2 MIC IN CH 1 AUDIO LEVEL INDICATOR YELLOW CH 2 AUDIO LEVEL INDICATOR YELLOW SLAVE TRANSMIT POWER INDICATOR YELLOW SLAVE POWER INDICATOR GREEN INDICATOR LIGHTS ON OFF MIC ADJUSTMENT POWER INDICATOR A139 RCA IN RCA IN 2 3 TX 75 2 8 3 3 TX 75b 3 8 ...

Page 9: ...The WIR TX75b offers two different 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 RCA 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 RCA jack for a given channel the audio signals will be mixed When no audio signal is pr...

Page 10: ...ck 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 Indicators table on page 12 for instructions on how to read indicator lights The WIR TX75 automatically detects when slave units are plugged in establishes a data link to verify operation monitors st...

Page 11: ...ame frequency as the transmitter If some of the receivers work but others don t check for bad batteries or earphones If 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 Check to see if the transmitter is connected properly to the audio so...

Page 12: ... Initial power on sequence OR unit has reset On for 2 seconds Off for 1 second continuous Unit is continuously resetting may be due to a low voltage supply condition In Master bad power supply In Slave bad CAT 5e 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 ceil...

Page 13: ...AUDIO INPUT JACK MONITOR MUTE BUTTON VOLUME KNOB RIGHT LEFT MUTE OFF ON OFF VOLUME SWITCH A162 EARPHONE JACK ON INDICATOR CHANNEL SELECTOR WIR RX18 Receiver WIR RX22 4 Receiver BATTERY BAT AP07D A163 VOLUME CONTROL FREQUENCY SELECTION SWITCH 2 3 MHz STEREO 2 8 MHz BALANCE CONTROL 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 ...

Page 14: ... level balanced or unbalanced audio Line in balanced unbalanced switch selects balanced or unbalanced line level audio for RCA jacks 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 selects microphone input to Ch1 or Ch2 Audio...

Page 15: ...ransmitters are aimed to maximize coverage area so that their coverage areas minimally overlap that of the master 10 000 sq ft in single channel mode with the RX22 4 a master and 1 slave transmitter 929 sq m 15 000 sq 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 l...

Page 16: ...UCT NO PERSON HAS ANY AUTHORITY TO BIND WILLIAMS SOUND TO ANY REPRESENTATION OR WARRANTY WITH RESPECT TO THE WIR TX75 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 W...

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