Williams Sound WIR TX75/b User Manual

Williams Sound WIR TX75/b User Manual

Two-channel infrared transmitter

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WIR TX75/b
Two-Channel Infrared Transmitter
Manual and User Guide
MAN 166C

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Summary of Contents for Williams Sound WIR TX75/b

  • Page 1 WIR TX75/b Two-Channel Infrared Transmitter Manual and User Guide MAN 166C...
  • Page 2: Table Of Contents

    WIR TX75 Two-Channel Infrared Transmitter WIR TX75 Two-Channel Infrared Transmitter Contents Important Safety Instructions ..............................3 CAT-5e Cable Safety ................................ 3 Receiver Safety Warnings ............................... 3 Hearing Safety ................................. 3 Battery Safety and Disposal ............................. 3 Pacemaker Safety ................................3 Transmitter Safety Warnings .............................
  • Page 3: Important Safety Instructions

    PACEMAKER SAFETY 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.
  • Page 4: Recycling Instructions

    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.
  • Page 5: System Overview

    WIR TX75 Two-Channel Infrared Transmitter System Overview The WIR TX75 two-channel infrared transmitter combines 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 TX75 is ideal for high-quality audio programs such as music, theater and audio description. The WIR TX75 will accept any line level, balanced or unbalanced audio inputs.
  • Page 6: Installation Procedures

    WIR TX75 Two-Channel Infrared Transmitter Installation Procedures Determine Coverage Area When using the WIR TX75 transmitter in single-channel mode with the RX22-4 receiver, the system coverage area will exceed 5000 ft² (185 m²). WIR TX75 units automatically adjust to give the best coverage area possible in both 1-channel and 2-channel modes.
  • Page 7: Optional Wir Tx75-S Slave Emitter For Additional Coverage

    WIR TX75 Two-Channel 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.
  • Page 8: Control Panel

    WIR TX75 Two-Channel Infrared Transmitter Figure 5: WIR TX75 master and two slaves at an angle of 35° to each other. A159 Control Panel Figure 6: WIR TX75 master rear view SLAVE TRANSMIT SLAVE POWER CH 1 AUDIO POWER INDICATOR INDICATOR LEVEL INDICATOR (YELLOW)
  • Page 9: Connect Power

    The WIR TX75 is equipped with a sleep/power save feature. If no audio is present on either channel for three minutes, 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.
  • Page 10: Adjust The Audio Level

    WIR TX75 Two-Channel Infrared Transmitter Adjust the Audio Level Line Level Source After an audio signal has been connected to the transmitter, adjust the audio source gain until the WIR TX75 audio-level indicator for that channel blinks periodically. Microphone Source Speak into the microphone from a normal distance and at a natural voice level.
  • Page 11 • Check for ground loops or noise on the input signal. • Check to make sure the “balanced / unbalanced” switch is in the correct position. If these instructions do not address your problem or the issue persists, please call your authorized Williams Sound dealer or representative.
  • Page 12: Mounting Options

    WIR TX75 Two-Channel Infrared Transmitter WIR TX75 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 (round or rectangle) detected, unit is not transmitting) Fast blink (continuous)
  • Page 13: Optional Receivers

    WIR TX75 Two-Channel Infrared Transmitter Optional Receivers WIR RX15-2 Receiver: LEFT INFRARED RIGHT SENSOR POWER/CHANNEL SWITCH POWER/ BATTERY CHANNEL COVER INDICATOR VOLUME KNOB MONITOR/MUTE BUTTON AUDIO INPUT JACK A169 WIR RX18 Receiver FREQUENCY SELECTION SWITCH 2.3 MHz, STEREO, 2.8 MHz VOLUME CONTROL BALANCE...
  • Page 14 WIR TX75 Two-Channel Infrared Transmitter Infrared Transmitter Specifications Model WIR TX75 (Master) 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 Power Supply: Desktop style international power supply with IEC line cord, 100-240 VAC input, 50-60Hz, 24W;...
  • Page 15 WIR TX75 Two-Channel Infrared Transmitter 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 μS pre-emphasis...
  • Page 16: 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 infrared listening system against defects in materials and workmanship for two (2) years. During the first two years from the purchase date, we will promptly repair or replace the WIR TX75 infrared listening system.

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