Instruction/ maintenance manual of the product SR 3256 Sennheiser
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4 Instructions for use SR 3254 SR 3256 SR 3254 SR 3256.
1 Contents Safety instructions ............ .............. ............... .............. .............. ....... 2 SR 3254/SR 3256 transmitters ........................ .............. ............... . 6 Delivery includes ............. ...............
2 Safety instructions These instruct ions for use cont ain important safety information. Read these instructions. Keep these instructions in a sa fe place. Always include these instructions when passing the device on t o third parties. Heed all warnings.
3 that matches the power outp ut sockets in your country, or to replace the obsolete socket with one to current standards. T h i s d e v i c e s h o u l d b e o p e r a t e d o n l y f r o m t h e t y p e o f p o w e r source indicated on the marking la bel.
4 Symbols on adhesive labels attached to the device The adjoining adhesive label is attached to the devices back . The symbols on this label have the following meaning: This symbol is intended t o ale.
5 Intended use of the transmitter Intended use includes y having read these instru ctions especially the chapter “Safety instructions”. y using the transmitter within the operating conditi- ons as descr ibed in thes e instructions.
6 SR 3254/SR 3256 transmitters With the wireless in-ear monitori ng system, consisting of the SR 3254 or SR 3256 stereo tran smitter and the EK 3253 bodypack receiver, musi cians, video and sound amateur s, reporters/broadcasters, etc. can directl y monitor the received sound signals without troublesom e cables or monitor speakers being required.
7 The channel bank system The SR 3254/SR 3256 transmitter is available in five UHF frequency ranges: Range A: 518 to 554 MHz Range B: 626 to 662 MHz Range C: 740 to 776 MHz Range D: 786 to 822 MHz Range E: 830 to 866 MHz The transmitter has two channel banks with up to 16 switchable channels each.
8 Overview of operating controls Note: Connections and operating cont rols marked with a star ( ) in the above ill ustration are those for the second transmitter of th e SR 3256 twin transmitter.
9 Indications and displays Alphanumeric display “ FREQUENCY MHZ ” display “ CHANNEL ” display LC dot CHANNEL LC dot TUNE LC dot MONO/STEREO LC dot STEREO (transmitt.
10 Preparing the transmitter for use Using the transmitter as a stand-alone unit Mounting the transmitter feet T o ensure that the transmitter cannot slip on the surface on which it is placed, four self-a dhesive soft rubber feet are supplied.
11 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 t o mount the antennas to the front of the rack, use the GA 3030- AM antenna mount (see “Accessories” on page 29).
12 Setting up the transmitters The SR 3254 and SR 3256 transmitters heat up during operation. y V entilation in fixed installatio ns Ensure sufficient ventilation, espe cially when the tr ansmitters are mounted into a desk or chassis. Prov ide fo r a duct of sufficient size to ensure a fr ee air flow between the trans- mitters.
13 Rack-mounting the transmitter and mounting the antennas to the front of t he rack 왘 Mount the antenna holders to the handles of the transmitter as shown in the diagram on the left. 왘 Hook the two rack mo unt “ears” " to the rear of the transmitter.
14 Connecting the transm itter to the mains The transmitte r 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 t ransmitter is set to the correct mains volt age! The set voltage is shown at the top of the fuse holder .
15 Connecting the mains cable 왘 Insert the supplied mains ca ble into the socket on t he transmitter and pass the cable through the cable grip. Note A cable grip is particularly important when the transmitter is permanently rack-mount ed.
16 Mounting and connect ing remote antennas Use a remote antenna when the transmitte r position is not the best antenna position for op timum transmission.
17 Using the transmitter Switching the transmitter on/off 왘 Press the POWER button to switch the transmitter on or off. Af ter switch-on, the LC display is backlit and the last transmission frequenc y set is displayed. Until the PLL has l ocked on the desired transmission frequency, the transmitter is muted.
18 Connecting the h eadphones/monitoring the audio signal Attention! High volume! Even short exposur e to high volume levels can damage your hearing! Set the volume for th e connected headphones to the minimum before putting the headphones on. Do no t listen at higher volume levels than wi th loudspeakers.
19 The operating menu of the transmitter Via the operating menu, yo u can quickly an d easily change the following settings: The buttons In the operating menu, all settings can be ma de using the 왖 .
20 Overview of the operating menu Display mode Setting mode Press SET for 1 sec. SET SET SET Current channel : U 1... U 16, F 1... F16 SET : Selects the channel : T ransmission frequency in steps of 5 kHz Current frequency SET Changing the channel Current channel or current frequency : U 1.
21 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). 왘 Press the 왖 / 왔 buttons to select the “ TUNE ” menu.
22 CHANNEL Selecting a channel from the channel bank “U” or “F” 왘 Press the 왖 / 왔 buttons to select the “ C HANNEL ” menu. The LC dot “ CHANNEL ” and the “ CHANNEL ” display light up. 왘 Press the SET button to get into the setti ng mode.
23 Care and maintenance Cleaning the transmitter 왘 Before cleaning, disconnect th e transmitter from t he mains. 왘 If necessary, you can clean the transm itter with a slightly damp cloth.
24 If the replacement fuse also bl ows, please cont act your local Sennheiser agent or send the transmitter, with a precise description of the trouble, to a Sennheiser se rvice partne r in your area. Y ou can find the ad dress of your nearest service partner in the enclosed servic e card or on the Internet at “http://www.
25 If problems occur ... Error checklist I f p r o b l e m s o c c u r t h a t a r e n ot li s t e d i n t h e above table or if the problems cannot be solved with the proposed solu tion s, please con tact your local Sennheiser agent for assistance.
26 Additional information HDX noise reducti on Progress you can hea r: The product fami ly 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.
27 Specifications Note: The above data also apply to the second transmitter in the SR 3256. RF characteristics Frequency ranges 518–554, 626–662, 7 40–776, 786–822, 830–866 MHz Transmission .
28 Connector assignment Overall unit Power suppl y 115/230 V AC +10 % / –15 % Power consumption SR 3254 max. 13 W Power consumption SR 3256 max. 23 W Dimensions (without rack moun t “ears”) 436 x 228 x 43 mm (19", 1 U) W eight SR 3254 approx.
29 Accessories AC 3000-EU Active Antenna combin er Cat. no. 009424 AC 3000-UK Active Antenna combin er Cat. no. 009410 AC 3000-US Active Antenna combiner C at. no. 094409 A 1031-U Passive omni -directional antenna Cat. no. 004645 GA 3030-AM Antenna mount Cat.
30 Manufacturer declarations W arranty regulations The guarantee period for this Sennheiser product is 24 m o n t h s f r o m t h e d a t e o f p u r c h a s e .
Sennheiser electronic GmbH & Co. KG 30900 Wedemark, Germany Phone +49 (5130) 600 0 Fax +49 (5130) 600 300 www.sennheiser.com P r i n t e d i n G e r m a n y Pu b l .
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If you have not bought Sennheiser SR 3256 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sennheiser SR 3256 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sennheiser SR 3256 you will learn all the available features of the product, as well as information on its operation. The information that you get Sennheiser SR 3256 will certainly help you make a decision on the purchase.
If you already are a holder of Sennheiser SR 3256, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sennheiser SR 3256.
However, one of the most important roles played by the user manual is to help in solving problems with Sennheiser SR 3256. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sennheiser SR 3256 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
