IEM-75 UHF wireless system user manual
Musikhaus Thomann Thomann GmbH Hans-Thomann-Straße 1 96138 Burgebrach Germany Telephone: +49 (0) 9546 9223-0 E-mail: info@thomann.de Internet: www.thomann.de 17.11.
Table of contents Table of contents 1 General notes............................................................................................................................................... 5 2 Safety instructions..................................................................................................................................... 7 3 Features and scope of delivery.........................................................................................................
Table of contents 7 Technical specifications....................................................................................................................... 7.1 Transmitter......................................................................................................................................... 7.2 Receiver............................................................................................................................................... 7.3 Frequency table..................
General notes 1 General notes This user manual contains important information on safe operation of the device. Read and follow all safety notes and all instructions. Save this manual for future reference. Make sure that it is available to all persons using this device. If you sell the device, include the manual for the next owner. Our products are subject to a process of continuous development. We therefore reserve the right to make changes without notice.
General notes Signal word Meaning DANGER! This combination of symbol and signal word indicates an immediate dangerous situation that will result in death or serious injury if it is not avoided. CAUTION! This combination of symbol and signal word indicates a possible dangerous situation that can result in minor injury if it is not avoided.
Safety instructions 2 Safety instructions Intended use This device is intended to be used for the wireless transmission of audio signals to earplugs. Use the device only as described in this user manual. Any other use or use under other operating conditions is considered to be improper and may result in personal injury or property damage. No liability will be assumed for damages resulting from improper use.
Safety instructions CAUTION! Possible hearing impairment The use of earphones at high volume over a longer period of time can cause permanent hearing damage. Adjust the output volume of your audio device to a medium value and use the earphones no longer than about one hour a day. NOTICE! Operating conditions This device has been designed for indoor use only. To prevent damage, never expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and strong vibrations.
Safety instructions NOTICE! External power supply The device is powered by an external power supply. Before connecting the external power supply, ensure that the input voltage (AC outlet) matches the voltage rating of the device and that the AC outlet is protected by a residual current circuit breaker. Failure to do so could result in damage to the device and possibly the user.
Safety instructions NOTICE! Possible damage by leaking batteries Leaking batteries can cause permanent damage to the device. Take batteries out of the device if it is not going to be used for a longer period.
Features and scope of delivery 3 Features and scope of delivery The UHF wireless system IEM-75 is suitable as in-ear monitoring system especially for professional events, on rock stages and in concert halls, theatres and musicals. Your UHF wireless system IEM-75 consists of the following components: n 9.
Installation and starting up 4 Installation and starting up 4.1 General Information Unpack and carefully check that there is no transportation damage before using the unit. Keep the equipment packaging. To fully protect the device against vibration, dust and moisture during transportation or storage use the original packaging or your own packaging material suitable for transport or storage, respectively. Establish all connections as long as the unit is switched off.
Installation and starting up Notes on radio transmission n This equipment uses a frequency range that is free of charge and registration within the European Union. For more information, please visit: http://www.thomann.de. n When operating, make sure that transmitter and receiver are set to the same channel. n Never set more than one transmitter to the same channel. n Make sure that no metal objects are located between transmitter and receiver. n Avoid interference by other radio and in-ear systems. 4.
Installation and starting up Connecting the power supply NOTICE! External power supply The device is powered by an external power supply. Before connecting the external power supply, ensure that the input voltage (AC outlet) matches the voltage rating of the device and that the AC outlet is protected by a residual current circuit breaker. Failure to do so could result in damage to the device and possibly the user.
Installation and starting up Connecting audio and starting up Connect the audio inputs of the transmitter with suitable line outputs of your mixer or your amplifier. Set the controls for the input sensitivity (10) to a middle position first. In order to achieve optimum sound quality, fine adjustment of the controls may be required. 4.
Installation and starting up 4.4 Taking system in operation 1. Make sure that the receiver is turned off, the main switch / volume control (16) is in ‘OFF’ position. 2. Attach the receiver with the clip to your belt or guitar strap. 3. Carefully insert the earplug into the ear canal, note the markings ‘L’ and ‘R’ for the left and right side. 4. Turn on the transmitter and the receiver and test the transmission. Make sure that transmitter and receiver are set to the same channel.
Connections and operating elements 5 Connections and operating elements 5.
Connections and operating elements 1 POWER Main switch. Turns the device on and off. To turn on, press this button for about one second. 2 / Channel selection buttons. 3 CHANNEL Shows the number of the selected channel. 4 Level metre for the left and right channel. 5 PHONES Socket for connecting headphones. 6 Volume control for the headphone output.
Connections and operating elements Rear panel of transmitter 7 DC Socket for connecting the supplied AC adapter. 8 MONO / STEREO Switch for selecting the operating mode (mono or stereo).
Connections and operating elements 9 LEFT AF INPUT / RIGHT AF INPUT XLR / 6,35 mm TRS combo jacks (left and right channel) for direct connection to a mixing console, PA or any other audio device that serves as signal source. 10 AF LEVEL LEFT / RIGHT Input sensitivity controls for the left and right channel. 11 UHF antenna. 12 ANTENNA BNC-type chassis socket for the supplied UHF antenna. Make sure that the frequency indicated on the antenna is within the range that is indicated on the transmitter.
Connections and operating elements 5.
Connections and operating elements 13 LED ST Indicates that a stereo signal is being transmitted on the radio link. 14 LED RF Lights up when the device receives a radio signal. 15 ANT Flexible antenna. 16 VOL ON/OFF/MAX Main switch and volume control. Turn this knob clockwise past the point of resistance to turn on the receiver. Turn it further to increase the volume. Turn this knob counter-clockwise to reduce the volume. Turn it further past the point of resistance to turn off the receiver. 17 PHONES 3.
Connections and operating elements 20 Battery compartment for 2 AA cells (LR6, 1.5 V) or appropriate rechargeable batteries. 21 Battery compartment lid. 22 Clip to attach the receiver to your belt or guitar strap.
Operating 6 Operating 6.1 Setting up the transmitter Channel selection Use the or buttons displayed. or to increase or decrease the indicated value until the desired value is Transmitter and receiver must be set to the same channel. Selecting the operating mode Use the switch MONO/STEREO on the rear panel to toggle between mono and stereo operation. Adjusting input level The transmitter displays the levels of the left and right channel in an LED chain.
Operating 6.2 Setting up the receiver Channel selection Press the rocker switch or until the indicated value flashes. Then press the rocker switch to increase or decrease the indicated value until the desired value is displayed. Transmitter and receiver must be set to the same channel.
Technical specifications 7 Technical specifications 7.
Technical specifications THD < 1 % @ 1 kHz Signal-to-noise ratio > 86 dB (A-weighted) Operating supply voltage DC 12…18 V , 300 mA, via supplied power adapter Dimensions (W × D × H, without antenna) 212 mm × 95 mm × 44 mm Weight 550 g 7.2 Receiver Earphones output 3.
Technical specifications Image frequency rejection > 50 dB Sensitivity > 90 dBm @ 30 dB SNR Stereo channel separation > 42 dB Audio frequency response 40 Hz…16 kHz THD < 1 % @ 1 kHz Signal-to-noise ratio > 86 dB (A-weighted) Dynamic range > 80 dB Audio output level 100 mW max. Operating supply voltage 2 AA cells (LR6, 1.
Technical specifications 7.3 Frequency table Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 863.100 MHz 863.900 MHz 864.500 MHz 864.900 MHz 863.200 MHz 863.300 MHz 863.400 MHz 863.500 MHz Channel 9 Channel 10 Channel 11 Channel 12 Channel 13 Channel 14 Channel 15 Channel 16 863.600 MHz 863.700 MHz 863.800 MHz 864.000 MHz 864.100 MHz 864.200 MHz 864.300 MHz 864.
Plug and connection assignment 8 Plug and connection assignment Introduction This chapter will help you select the right cables and plugs to connect your valuable equipment in such a way that a perfect sound experience is ensured.
Plug and connection assignment Since the interference affects both cores equally, by subtracting the phase-shifted signals, the interfering signal is completely neutralized. The result is a pure signal without any noise interference.
Plug and connection assignment XLR plug (balanced) 1 Ground, shielding 2 Signal (in phase, +) 3 Signal (out of phase, –) UHF wireless system 32
Troubleshooting 9 Troubleshooting In the following we list a few common problems that may occur during operation.
Troubleshooting Symptom Remedy No sound 1. Check the power supply of transmitter and receiver. 2. Are transmitter and receiver set to the same channel? 3. Test the connection between the transmitter and the connected audio device (amplifier, mixer). Is the connected audio device turned on and does the signal level at the output of the audio device match to the input requirements of the transmitter? 4. See if the sound transmission works when you move the receiver closer to the transmitter. 5.
Troubleshooting Symptom Remedy The sound is distorted. 1. Change the setting of the ‘AF LEVEL’ controls on the transmitter. 2. Check the charging level of the batteries in the receiver. If the procedures recommended above do not succeed, please contact our Service Center. You can find the contact information at www.thomann.de.
Protecting the environment 10 Protecting the environment Disposal of the packaging material For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling. Ensure that plastic bags, packaging, etc. are properly disposed of. Do not just dispose these materials with your normal household waste, but make sure that they are fed to a recovery. Please follow the notes and markings on the packaging.
Protecting the environment Disposal of your old device This product is subject to the European Waste Electrical and Electronic Equipment Directive (WEEE). Do not dispose with your normal household waste. Dispose this device through an approved waste disposal firm or through your local waste facility. When discarding the device, comply with the rules and regulations that apply in your country. If in doubt, consult your local waste disposal facility.
Notes UHF wireless system 38
Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.
