Sennheiser EM 3731 инструкция обслуживания

300 100 30 10 10 50 100 PEAK µ V RF % DEV M H z 790.800 03.03 BANK CH A B COM AF 300 100 30 10 10 50 100 PEAK µ V RF % DEV M H z 790.800 03.03 BANK CH A B COM AF Instructions for use EM 3732 Command EM 3732 EM 3731[...]

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1 Contents Important safety instructions ............. ...... ........ .............. ............ ........... ........... 2 Delivery includes ............. ............ ........... .............. ........... ............... ........... ........... 4 The EM 3731/3732 recei ver fa mily ........... ............ .............. ........... ............[...]

2 Important safety instructions Important safety instructions 1. Read these instructions. 2. K eep these instructions. 3. Heed all warnings. 4. Follow all instructio ns. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openin gs. Install in accordance with the manufacturer’s instruct ions. 8. [...]

3 Important safety instructions Hazard warnings on the rear of the receiver The label shown on the lef t is attached to the rear of the device. The symbols on this label have the fol lowing meaning: This symbol is intended to aler t the user to the presence of uninsulated dangerous voltage within the device’s enclosure that may be of sufficient m[...]

4 Delivery in cludes Intended use of the receiver Intended use of the EM 3731 si ngle receiver or the EM 373 2 and EM 3732 Command twin receivers includ es: y using the device for professional purposes, y having read these in structions, especially the chapte r “Important safety instructions” on page 2, y using the device within the operating c[...]

5 The EM 3731/3732 receiver fa mily The EM 3731/3732 receiver family The receivers of the EM 3731/3732 receiver family ensure highest reception re liability and offer unma tche d ease of use. Due to their large switching bandwi dth and numerous co nnection options, these receivers provide maximum flexib ility in daily operation. The EM 3731/3 732 r[...]

6 The EM 3731/3732 receiver family The receivers have seven frequency banks. Distribution of t he receiving frequenc ies within the frequency banks 1 to 6: The varying accumulation of freque ncies within the frequency banks allows you to use a s many channels as possible in a crowded frequency band. Channel Frequency bank 1 2 3 4 5 6 U Optimized fo[...]

7 Overview of operating controls Overview of operating controls *) The audio outputs marked with the number “1” output the audio signal of the lef t receiver of the twin receiver (as viewed from the front) ; the audio output s marked with the nu mber “2” output the audio signal of the right receiver. 300 100 30 10 10 50 100 PEAK μ V RF % D[...]

8 Overview of the display Overview of the display Reception display 쐃 RF level display “RF” for antenna A 쐇 Diversity display (antenna A or antenna B active) 쐋 RF level display “RF” for antenna B 쐏 Audio level di splay “Dev” 쐄 Display of the squelch threshold For additional infor mation see pages 9 and 10 . Status disp lay 쐂[...]

9 Indications and displ ays Indications and displays The displays provide information on the o perating states of the corresponding receiver and thos e of the received transmitter. Reception display The receptio n display is permanen tly displayed. If you do not pres s a button on the transmi tter, the display will dim after 60 seconds (see page 8)[...]

10 Indications and displays Audio level display “Dev” The audio level d isplay “Dev” 쐏 shows the modulation of the received transmitter. When the tr ansmitter’ s audio inpu t leve l is excessively high, the receiver’s audio level display “Dev” 쐏 shows more than 100 %. When the tr ansmitt er is overm odulated frequentl y or for a[...]

11 Indications and displ ays T ransmit ter battery status displ ay The 6-step tran smitter battery status di splay 쐊 provides information on the transmitter’s rema ining battery/acc upa ck capacity: Note: If no batt ery/accupack stat us sign al is received, the battery status display is not shown. When the battery/accupack is almost empty, tex [...]

12 Indications and displays LEDs for booster suppl y of antenna inputs The LEDs for booster supply of antenna input A N or B S li ght up when y the booster supply vo ltage is applied to the correspondi ng antenna input A O or B R . The LEDs for booster supply of antenna input A N or B S go off when y the booster supply voltage for the corres pondin[...]

13 Putting the receiver into operation Putting the receiver into operation Fitting the device feet When the receiver is not installed in a rack, avoid the receiver sliding a r o u n d a n d r e d u c e t h e c h a n c e o f d a m a g e t o t h e r e c e i v e r a n d t o a n y surface on which it is placed by fixing the four sof t ru bber self adhe[...]

14 Putting the receiver into operation The rack mount “ears” are already atta ched to the receiver at the factory. T o mount the device into a 19" rack: 왘 Slide the receiver into the 19" rack. 왘 Secure the rack mount “ears” 1 t o t h e r a c k u s i n g f o u r s c r e w s ( n o t included). Connecting the antennas The two ant[...]

15 Putting the receiver into operation Mounting the antennas to the front of the rack When rack mounting the receiver , you require the GA 3030 AM antenna mount (available as an accessory) to mount the antenna connections to the front of the rack. The GA 3030 AM antenna m ount consists of: y 2 BNC extension cables (screw-in BNC socket W to BNC conn[...]

16 Putting the receiver into operation Mounting and connecting remote antennas Use a remote antenna (available as accessories) when the receiver position is not the best an tenna position for optimum reception. 왘 Connect the remote ante nnas to the BNC sockets O and R at the rear of the receiver using a low-at tenuation 50- Ω coaxial cable. Note[...]

17 Putting the receiver into operation Connecting the receiver to the mains/disconnecting the receiver from the mains The receiver has no mains switch. T o connect the receiver to the mains: 왘 Connect the supplied mains ca ble to the 3-pin mains socket D . 왘 Plug the mains connector into the wall socket. T o disconnect the receiver from the mai[...]

18 Putting the receiver into operation Connecting an external word clock generator The receiver can digitalize the audi o signal and output it via the digit al balanced XLR-3M audio ou tput G . The built-in A/D converter supports sampling rates of 44.1 kHz, 48 k Hz, 88.2 kHz and 96 kHz. If you want to connect an extern al word clock genera tor inst[...]

19 Using the receiver When you are working with the “Wir eless Systems Manager” sof tware, you can use the “Spectrum Analyzer ” tool to perform a continuous frequency scan. The “Spectrum Analyzer“ tool uses the receiver that yo u select to check the relevant frequency range for signals and r ecords the corresponding measured values. For[...]

20 Using the receiver Connecting the headphone s/adjusting the volume The EM 3731 single receiver features a headphone output 2 . The two receivers of the EM 3732 or EM 3732 Command twin recei ver have a common he adphon e output 2 . This com mon headphone output 2 allows you to either m onitor the audio signal of on e receiver or to simultaneously[...]

21 Using the receiver Synchronizing the transmitter with the receiver frequency Via its infra-red interface, the receiver can transfer the frequency and the name to suitab le transmitters (e.g. SK 5212, SKM 5200 or SKP 3000). Note: The transmitter must be from the same frequency range (“A” to “I”, see page 5) and be equipped with the same c[...]

22 The operating menu The operating menu Overview of menus Menu level Display Function of the menu Uppermost menu level Tu n e Setting a receiving frequency (this frequency is automatically stored in channel “01” of the frequency bank “U” ( user bank)). Bank.Ch Switching between the frequency banks and between the channels of a frequency ba[...]

23 The operating menu W orking with the operating menu By way of example of the “ Tune ” menu, this section describes how to use the operating menu. Af ter switching the receiver on, the st atus display is shown on the display panel. Getting into the operating menu 왘 Press the jog dial . The status display is replac ed by the operating menu. [...]

24 The operating menu Operating menu of the receivers Bank.Ch B.Ch 1.01 u ne 90. 00 Na m CE L B.Ch 1 . 790.900 MHz B.Ch 5 . 16 T une 790. 800 Ban k B.Ch 1.0 1 MHz save esc save Name CEL B .Ch . Ch . 16 save save S q uel 5 0 C E Squelch uelch Squel 50 a me EL Boost e save Booster AF O +12 Booster Feed On AF Out +12 o oster Cloc k 48 MHz MHz 790.900 [...]

25 The operating menu save save AF Out +12 o oster Cloc k 48 +12 +12 dB +18 +18 dB 20 Clock 48 F Out 18 Comm 3 save esc Comm 3 48 44.1 48 88.2 96 Ext. 96 44.1 48 88.2 96 Ext. Command 3 l ock 96 Mor e More Scan Displ a 3 Booster AF O +12 kHz kHz 3 q uelch 30 1 m mand 3 Setting mode Selection mode Audio output level Current audio output level Adjusti[...]

26 The operating menu * Af ter pressing the save button 8 , the display automatically changes to the “ B.Ch ” m enu (see page 24) – i.e. to the selected frequency bank. esc More Scan Displ a 1 Channel list Scan new Scan reset Channel list Scan new Scan reset Channel list Scan new Scan reset Display 4 can IP-A d 10 49 68 75 save* Bank 4 5 6 U [...]

27 The operating menu IP-Addr 192. 168. 0. 0 s play 4 MA C 00 1 1B 6 00 0 MAC Addr 192. 168. 0. 1 Stand O F Standby OFF Res e 000 M AC 0 1B 6 00 0 01 Reset 000 save save esc esc 192. 168. 0. 0 Auto 0192. 168. 0. 1 00:1B:33:66:00:01 OFF a ndb y OFF 000 Reset to factory defaults ? Auto 000 Reset to factory defaults ? 192. 168. 0. 1 00 1B 66 00 00 01 [...]

28 The operating menu Adjustment tips for the operating menu The following adju stment tips appl y to the operating menus of all receivers of the EM 3731 /3732 receiver family. Setting the receiving frequency Tu n e Via the “ Tune ” menu, yo u can: y set the receiver to a receiving fr equency that can be freely selected within the preset freque[...]

29 The operating menu The selected frequency bank and th e selected ch annel are set. The display changes to t he selectio n mode of the operating men u. Changing the receivin g frequency for a selected channel in the frequency bank “U” Tu n e Each receiver has seven frequency banks. The frequency banks “1” to “6” h a v e u p t o 6 0 c [...]

30 The operating menu Adjusting the squelch threshold Squelch Both receivers are equipped with a sq uelch that can be adjusted via the “ Squelch ” menu. The squelch eliminates annoying noise when the transmitter is switched off. It also suppresses sudden noise when there is no longer suffic ient transmitter power received b y the receiver. The [...]

31 The operating menu 왘 Change the settin g to “Booster Feed On” or “Booster Feed Off” by turning the jog dial 7 . 왘 Press the save butt on 8 . The selected setting is stored. When the boos ter supp ly voltage is switched on, the two LEDs N and S light up. The display changes to the selection mode o f the operating menu. Adjusting the a[...]

32 The operating menu external word clock generator is no t conn ected or switched off), the display for external word clock synchronization B starts flashi ng and the last set sampling rate remains active. The receiver’s audio outputs have a latency w hich depends on the sam- pling rate set in the “ Clock ” menu. The below table shows these [...]

33 The operating menu 왘 Change to the setting mode of the “ Command ” menu. The current configuration starts fl ashing. 왘 Select one of the four config urations by turni ng the jog dial 7 . Note: If you do not want to use the command function, se lect the configuration “4”. 왘 Press the save butt on 8 . The selected configuration is st[...]

34 The operating menu Note: Af ter the scan, the channels that are occupied or subject to interference are marked with a warning triangle and the text “ Freq. occupied ” in the “ Tu n e ” menu. Starting the scan Scan new Via the “ Scan new ” menu, you can scan all frequency banks for free channels. The last scan r esult is overwritten. [...]

35 The operating menu Releasing channels that are us ed or subject to interference Scan reset After the scan, the channels that are occupied or subject to interference are marked with a warning triangle and the text “ Freq. occupied ” in the “ Tu n e ” menu. Via the “ Scan reset ” menu, you can unmark these channels. The last scan resul[...]

36 The operating menu Selecting t he status display Display Via the “ Di splay ” menu, you can select the status display: 왘 Change to the setting mode of the “ Display ” menu. The current status display starts flashing. 왘 Select one of the four status displays by turning the jog dial 7 . 왘 Press the save button 8 . The selected status[...]

37 The operating menu To automatically obtai n an IP ad dress (d ynamic IP addressi ng): 왘 Change to the setting mode of the “ IP-Addr ” menu. The first byte starts f lashing. 왘 Press the jog dial 7 several times unti l the arrow points to “Auto”. 왘 Press the save bu tton 8 . 왘 Switch the receiv er off and on ag ain (see “Switchin[...]

38 Additional informati on Additional information HiDyn plus ™ (HDP) noise reduction The EM 3731/3732 receivers are equ ipped with HDP , the Sennheiser noise reduction system that reduces RF inte rference. It increases the signal-to- noise ratio in wi reless audio transmission to more than 110 dB . HDP is a wideband compander system whic h comp r[...]

39 Additional information Diversity reception The receivers operate on the “true diversity” principle: A receiving antenna receives not only the electromagnetic waves wh ich reach it by a direct path, but also the reflections o f these waves which are created in the room by walls, window s, ceilings and fittings. When these waves are superimpos[...]

40 Additional informati on If a problem occurs ... If a problem occurs that is not listed in the above tabl e or if the problem cannot be solved with the proposed solution(s), please contact your lo cal Sennheiser agent for assistance. Problem Poss ible c ause Possible solution No operation indication No mains connection Check the co nnections of t[...]

41 Specifica tions Specifications RF characteristics Modulation wideband FM Frequency ranges 470–56 0 MHz 518–608 MHz 548–638 MHz 614–704 MHz 678–768 MHz 7 08–798 MHz 776–866 MHz 814–904 MHz 8 70–960 MHz Receiving frequencies (per receiver RX 1 or RX 2) 6 frequency banks with up to 60 factory- preset frequencies each, 1 frequency [...]

42 Specifications Overall device Ambient temperature –10 °C to +55 °C Relative humidity max. 85 % Power supply 100 – 240 V AC, 50/60 Hz Current consumption max. 0.4 A Power consumption w ith receiver switched on: ma x. 20 W (50 V A) with receiver sw itched off, booster su pply voltage switched on: max. 9.5 W with receiver and booster supply v[...]

43 Accessorie s/spare parts Accessories/spare parts The following accessories ar e available from your authorized dealer: Cat. No. Accessory 502195 A 3700 active broadband a ntenna 502197 AD 3700 active broad band directional antennna 502196 AB 3700 ante nna booster 500887 A 5000 CP circularly polarized broadband antenna, passive 004645 A 1031 broa[...]

44 Manufacturer Declarations Manufacturer Declarations W arranty regulations The guarantee period for this Sennheiser product is 24 months from the da te of purchase. Excluded ar e accesso ry items , rechargeable or disposable batte ries that are delivered with the product; due to th eir characteristics these products have a shorter service life th[...]

Sennheiser electronic GmbH & Co. KG Am Labor 1 30900 Wedemark, Germany Phone +49 (513 0) 600 0 Printed in Germany Fax +49 (5 130) 600 300 Publ. 01/08 www.sennheiser.com 51655 1/A01[...]