User manual SENNHEISER EM 3032-U

[. . . ] Instructions for use EM 3031-U EM 3032-U 27 Thank you for choosing Sennheiser! You have made an excellent choice. This product will give you reliable and cost-effective ease of operation over many years. All of Sennheiser's professional expertise and more than fifty years of experience have gone into the creation of this state-of-the-art product. Please take a few moments to read these instructions carefully. [. . . ] Maintain a minimum distance of 1 metre from metal objects (including walls of reinforced concrete)!Maintain a minimum distance of 1 metre between the receiving antennæ! 36 7 Switching the mains voltage Before you plug the mains connector into the mains, please check first of all that the receiver is set to the correct mains voltage! You can switch the mains voltage by removing the fuse holder with the inserted fuse , turning it through 180° and inserting it again , . The rated voltage set can now be seen at the top of the fuse holder. Mains connection Insert the mains cable supplied into the socket traction relief µ. on the receiver and pass the cable through the and interrupt operation. Because of the traction relief, the cable can no longer slip out of socket Note A straw relief clamp is particularly important when the receiver is permanently rack mounted. Inside the rack there are often a large number of cables - a straw relief clamp bracket prevents the cables from pressing each other out. 37 8 Putting the receiver into operation The receiver is switched on with the ON / OFF switch ². Display panel » is now lit up to show that the receiver is switched on, and the last frequency set is shown (see chapter 10). The display "MUTE" (see chapter 13) is lit up . If a suitable transmitter is already operating on this frequency, the display "MUTE" is initially lit up for about 4 seconds. Then the display changes to "RF" and "DEV" (RF level and modulation, see chapter 13), and the diversity branch in use is displayed (see chapter 4). Note The ON / OFF switch ² works in the secondary circuit of the integrated mains transformer, and thus only switches the low voltage side. Each group can contain from 0 to 8 receiving frequencies. Pre-programming and group assignment is carried out by the factory according to your specifications. Possible specifications for frequency combinations: Use of several receivers to make up a multi-channel system With this frequency combination, the receiving frequencies are divided into groups such that they can simultaneously be used within one group (or several groups) without causing intermodulation interferences. 1 . . . 16 . . . . . . Use of receivers in different places Here, a frequency group is assigned to a TV channel. If one or several receiving frequencies are subject to interference (e. g. due to TV transmitters), please choose a frequency group in a different TV channel. 40 Number of receiving frequencies For ease of use, or if required by country-specific restrictions on the frequency usage, it is also possible to program less than 32 receiving frequencies. Your local Sennheiser distributor will be happy to help you in the selection of your receiving frequencies. 11 Reprogramming the receiving frequencies ­ no problem! If you wish ­ for whatever reason ­ to change your receiving frequencies, reprogramming, within the limits of the receiver's specifications, can be carried out without any problems by your local Sennheiser service department. 12 Display of frequency groups In the selection of receiving frequencies, the receiver goes through the four groups in succession. The groups are shown on the display panel in display . Each additional illuminated dot represents a further group: 1 2 3 4 41 13 Power of the received RF signal In display panel , the power of the received RF signal in (µV) and the level control of the AF signal ­ i. e. the modulation of the RF signal (in %) are shown. Both displays have an overmodulation display. If the signal is too high, the text "PEAK" lights up briefly. Where longer overmodulation occurs, the modulation of the corresponding transmitter must be reduced. [. . . ] Whenever the squelch is activated in the receiver, the "LOW BATT" display goes off and the evaluation of the feedback from the transmitter starts over again. Under favourable reception conditions, the evaluation of the battery information from the transmitter lasts about 10 ­ 20 seconds. However, it can be significantly longer if reception is subject to interference from time to time. This time is then also needed by the display in display panel in order to update the information shown. 46 19 Suitable Sennheiser transmitters For the optimum use of the excellent reception qualities of the EM 3031 / EM 3032 receivers, Sennheiser offers hand-held and pocket transmitters in a variety of configurations: Pocket transmitters: SK 1063-U BF 1083-U SK 50-U SK 250-U SKM 1072-U SKM 3072-U SKM 5000-U (without display of battery condition) (without display of battery condition) (with display of battery condition) (with display of battery condition) (without display of battery condition) (with display of battery condition)* (with display of battery condition) Hand-held transmitters: Information on the many possible combinations of Sennheiser products and their use in multichannel systems can be found in the planning brochure "Practical Applications in RF Technology" which your Sennheiser distributor has in stock or will be pleased to order for you from Sennheiser. [. . . ]