SR3254_56.book Seite 1 Samstag, 10.
SR3254_56.book Seite 2 Samstag, 10. September 2005 2:53 14 Bedienungsanleitung..................................................................3 Instructions for use .................................................................. 31 Notice d’emploi ........................................................................ 59 Istruzioni per l’uso................................................................... 87 Instrucciones de uso .............................................................
SR3254_56.book Seite 31 Samstag, 10.
SR3254_56.book Seite 32 Samstag, 10. September 2005 2:53 14 Thank you for choosing Sennheiser! We have designed this product to give you reliable operation over many years. Over sixty years of accumulated expertise in the design and manufacture of high-quality electro-acoustic equipment have made Sennheiser a world-leading company in this field. Please take a few moments to read these instructions carefully, as we want you to enjoy your new Sennheiser products quickly and to the fullest.
SR3254_56.book Seite 33 Samstag, 10. September 2005 2:53 14 Contents Contents ............................................................................................33 Safety instructions ..........................................................................34 SR 3254/SR 3256 transmitters ....................................................36 Delivery includes ..............................................................................37 Overview of operating controls ...........................
SR3254_56.book Seite 34 Samstag, 10. September 2005 2:53 14 Safety instructions y Please read these instructions carefully and completely before using the transmitter. y Make these instructions easily accessible to all users at all times. Always include these instructions when passing the transmitter on to third parties. y Never open the transmitter, otherwise you can receive an electric shock. If units are opened by customers in breach of this instruction, the warranty becomes null and void.
SR3254_56.book Seite 35 Samstag, 10. September 2005 2:53 14 signs that you have been subjected to excessive noise for too long a time: y You can hear ringing or whistling sounds in your ears. y You have the impression (even for a short time only) that you can no longer hear high notes. Intended use of the transmitter Intended use includes y having read these instructions especially the chapter “Safety instructions”. y using the transmitter within the operating conditions as described in these instructions.
SR3254_56.book Seite 36 Samstag, 10. September 2005 2:53 14 SR 3254/SR 3256 transmitters With the wireless in-ear monitoring system, consisting of the SR 3254 or SR 3256 stereo transmitter and the EK 3253 bodypack receiver, musicians, video and sound amateurs, reporters/broadcasters, etc. can directly monitor the received sound signals without troublesome cables or monitor speakers being required. In addition, the system can also be used for any application where talkback signals are to be transmitted.
SR3254_56.book Seite 37 Samstag, 10. September 2005 2:53 14 The channel bank system The SR 3254/SR 3256 transmitter is available in five UHF frequency ranges: Range A: Range B: Range C: Range D: Range E: 518 to 554 MHz 626 to 662 MHz 740 to 776 MHz 786 to 822 MHz 830 to 866 MHz The transmitter has two channel banks with up to 16 switchable channels each. The channels of the channel bank “F“ (fixed bank) have been factory-preset to customer-specific transmission frequencies.
SR3254_56.book Seite 38 Samstag, 10. September 2005 2:53 14 Overview of operating controls Headphone output, ¼” (6.
SR3254_56.book Seite 39 Samstag, 10.
SR3254_56.book Seite 40 Samstag, 10. September 2005 2:53 14 Preparing the transmitter for use Using the transmitter as a stand-alone unit Mounting the transmitter feet To ensure that the transmitter cannot slip on the surface on which it is placed, four self-adhesive soft rubber feet are supplied. Ensure that the base of the transmitter is clean and free from grease before mounting the rubber feet.
SR3254_56.book Seite 41 Samstag, 10. September 2005 2:53 14 Rack-mounting several transmitters You can use the supplied rack mount “ears” to mount the transmitter into a 19" rack (1 U). If you wish to mount the antennas to the front of the rack, use the GA 3030-AM antenna mount (see “Accessories” on page 58). Setting up the transmitters The SR 3254 and SR 3256 transmitters heat up during operation.
SR3254_56.book Seite 42 Samstag, 10. September 2005 2:53 14 Rack-mounting the transmitter and mounting the antennas to the front of the rack Mount the antenna holders to the handles of the transmitter as shown in the diagram on the left. Hook the two rack mount “ears” ! to the rear of the transmitter. Pull the cables of the antenna holders in the rack mount “ears”.
SR3254_56.book Seite 43 Samstag, 10. September 2005 2:53 14 Connecting the transmitter to the mains The transmitter can be connected to 230 V or 115 V AC. Before you plug the mains connector into the wall socket, please first check that the transmitter is set to the correct mains voltage! The set voltage is shown at the top of the fuse holder .
SR3254_56.book Seite 44 Samstag, 10. September 2005 2:53 14 Connecting the mains cable Insert the supplied mains cable into the socket on the transmitter and pass the cable through the cable grip. Note A cable grip is particularly important when the transmitter is permanently rack-mounted. Inside the rack there are often a large number of cables – a cable grip prevents the cables from pulling each other out.
SR3254_56.book Seite 45 Samstag, 10. September 2005 2:53 14 Mounting and connecting remote antennas Use a remote antenna when the transmitter position is not the best antenna position for optimum transmission. You can choose between two antennas (see “Accessories” on page 58): y A 2003 UHF passive directional antenna y A 1031 passive omni-directional antenna A 2003 A 1031 Use a low-attenuation 50-Ω cable to connect the antenna to the transmitter.
SR3254_56.book Seite 46 Samstag, 10. September 2005 2:53 14 Using the transmitter Switching the transmitter on/off Press the POWER button to switch the transmitter on or off. After switch-on, the LC display is backlit and the last transmission frequency set is displayed. Until the PLL has locked on the desired transmission frequency, the transmitter is muted. “MUTE” appears on the display and the LCD bargraph for RF output power (RF) indicates 0 %.
SR3254_56.book Seite 47 Samstag, 10. September 2005 2:53 14 First, set the volume control " to the lowest volume by turning it to the left as far as possible. Then gradually turn up the volume.
SR3254_56.book Seite 48 Samstag, 10.
SR3254_56.book Seite 49 Samstag, 10. September 2005 2:53 14 Overview of the operating menu Display mode Setting mode Press SET for 1 sec. SET Current channel : U 1... U 16, F 1... F16 SET: Selects the channel SET : Transmission frequency in steps of 5 kHz Current frequency SET SET Current channel or current frequency Changing the channel : U 1... U 16, F 1...
SR3254_56.book Seite 50 Samstag, 10. September 2005 2:53 14 TUNE Selecting the frequencies to be stored in the channel bank “U” Via the “TUNE” menu, you can freely select the frequencies to be stored in the channel bank “U” (user bank). Press the / buttons to select the “TUNE” menu. The LC dot “TUNE” lights up. Press the SET button to get into the setting mode of the “TUNE” menu. The LC dot “TUNE” and the “FREQUENCY MHZ” display start flashing.
SR3254_56.book Seite 51 Samstag, 10. September 2005 2:53 14 CHANNEL Selecting a channel from the channel bank “U” or “F” Press the / buttons to select the “CHANNEL” menu. The LC dot “CHANNEL” and the “CHANNEL” display light up. Press the SET button to get into the setting mode. Press the / buttons to select the desired channel. 1 Sek. Press the SET button to store your selection. “Sto.” briefly appears on the display.
SR3254_56.book Seite 52 Samstag, 10. September 2005 2:53 14 Care and maintenance Cleaning the transmitter CAUTION! Water can damage the electronics of the transmitter! Water entering the housing of the transmitter can cause a short-circuit and damage the electronics. Only use a slightly damp cloth to clean the transmitter. Before cleaning, disconnect the transmitter from the mains. If necessary, you can clean the transmitter with a slightly damp cloth. Do not use any cleansing agents or solvents.
SR3254_56.book Seite 53 Samstag, 10. September 2005 2:53 14 If the replacement fuse also blows, please contact your local Sennheiser agent or send the transmitter, with a precise description of the trouble, to a Sennheiser service partner in your area. You can find the address of your nearest service partner in the enclosed service card or on the Internet at “http://www.sennheiser.com/sennheiser/icm.nsf/root/ service_partner”.
SR3254_56.book Seite 54 Samstag, 10. September 2005 2:53 14 If problems occur ...
SR3254_56.book Seite 55 Samstag, 10. September 2005 2:53 14 Additional information HDX noise reduction RF link Inherent noise of the RF link Transmitter Receiver Progress you can hear: The product family is equipped with HDX, the Sennheiser noise reduction system that reduces RF interference. It increases the signal-to-noise ratio in wireless audio transmission to more than 90 dB.
SR3254_56.book Seite 56 Samstag, 10. September 2005 2:53 14 Specifications RF characteristics Frequency ranges 518–554, 626–662, 740–776, 786–822, 830–866 MHz Transmission frequencies 1 channel bank with up to 16 factory-preset channels 1 channel bank with up to 16 freely selectable channels (frequencies tunable in steps of 5 kHz) Switching bandwidth 36 MHz Frequency stability ±10 ppm (-10° C to +55°C) Antenna output BNC socket, 50 Ω RF output power max.
SR3254_56.book Seite 57 Samstag, 10. September 2005 2:53 14 Overall unit Power supply 115/230 V AC +10% / –15% Power consumption SR 3254 max. 13 W Power consumption SR 3256 max. 23 W Dimensions (without rack mount “ears”) 436 x 228 x 43 mm (19", 1 U) Weight SR 3254 approx. 3,300 g Weight SR 3256 approx. 4,000 g Type approval USA: FCC-Part 74.861 FCC ID: DMOSREK3K Canada: RSS-123 IC: 2099A-SREK3K EU: ETSI EN 300 454-1/-2 CE 0682! Connector assignment SR 3254/SR 3256 ¼“ (6.
SR3254_56.book Seite 58 Samstag, 10. September 2005 2:53 14 Accessories AC 3000-EU Active Antenna combiner Cat. no. 009424 AC 3000-UK Active Antenna combiner Cat. no. 009410 AC 3000-US Active Antenna combiner Cat. no. 094409 A 1031-U Passive omni-directional antenna Cat. no. 004645 GA 3030-AM Antenna mount Cat. no. 004368 A 2003 UHF Passive directional antenna Cat. no. 003658 GZL 1019 A5 BNC-BNC coaxial cable, length 5 m Cat. no. 002325 GZL 1019 A10 BNC-BNC coaxial cable, length 10 m Cat. no.
