Bosch MH-300
Contents
1. F01UI67567 Dynamic Microphone Module desee ete eeu vtae e oe ee Maeva Ge F01U167568 Headpdd E P F01U217632 Table of Contents INI KOPCE CION 3 NPS ELUNE ten vem Im Ipsi D i uU NM UM DUNEDIN PP PEN MIU MEM 3 61 DHOB mI INNEN MIENNE MINE DU UEEMUM MINIM UM MM 3 liil 5 4 MH 300 MH 300L ANR 5 MH 302 MH 302L no ANR amp MH 402 MH 402L ANR capable B i Ses Umso im 2 6 MF J Bauer TONG OUD E E E 7 CONFIGURATION OPERATION AND MAINTENANCE ssssssssseseesseeseecseooeeoseeoseoseecsecsecosecoeeoseoseooe 9 a A EA E EE E E A 9 Battery Charging MH 402 SOLIS 9 Battery Installation MH402 Series 9 Remove and Replace any Headset Module 9 Coni MEER RR Em 11 PIC CESS 11 Contisure the Speaker Volume 12 DIE Te E S eases rete sai2. 9 Standard Power Supply and RUSSIA NE y ANE WCE FM 14 19 2 6 1 eee eae MEE 22 4 Pin XLR Connector Female and 25 XLR Connector 26 Quick Disconnect Connector 1 Introduction Important Safety Instructions Read these instructions Keep these instructions Heed all warnings Follow all instructions This headset is capable of producing sound pressure levels in excess of 100dB SPL dm Refer all servicing to qualified service personnel Servicing is required when the headset is damaged in any way such as power supply cord or plug is damaged liquid has been spilled into the headset the headset is exposed to rain or moisture or does not operate normally 7 The battery used with these headsets is a Lithium based unit This unit must only be charged with the RTS specified battery charger Care should be used when storing the battery ensuring the terminals are not shorted together General Description The MH Series Headsets and Headphones provide the newest design in headset technology from RTS With its rugged modular desig
3. s LN 27 Modular Series MH Headsets and Headphones User Manual 28 5 Specifications Specifications Speaker ee ER 100dB SPL mW at 1kHz normal volume setting ripe 150Q nominal Freguenec y RESPONS e Ope 100Hz to 10kHz UO UNG teas lt 10 Noise Reduction ANR Models MH 402 and MH 402L up to 12dB noise reduction between 100Hz and 2000Hz Microphone MN Dee CE SEPT Noise canceling dynamic MAAS CANN gt 2000 ct SE 200Hz to 5kHz Disto lt 5 Gross WeIgIiE 300 80z 226g MH 302 1007 284g MH 402 1007 284g Cord Ceno 5 98 1 8 Black 29 Modular Series MH Headsets and Headphones User Manual 30 6 Troubleshooting and FAQs PROBLEM SOLUTION Where do I send my headset for repair Attn Customer Service Bosch Communications Inc 8601 East Cornhusker Hwy Lincoln NE 68507 U S A
4. 25 ALR 25 Pia SCO orp Ba 26 CICK PH RES 27 SEEC ATON S T T T 29 SPEC 29 E 29 NOISE ISe due 29 eee A 29 EH rc 29 TROUBLESHOOTING AND TAOS crica Saas oves 31 W here del Send my HeadSel r 31 My ANR Automatic Noise Reduction Headset is no longer working 31 My headset does not work wik my WIP player 31 I eed parts TOF my headset RI ta dm 32 How lone willittake my headset De Tepalte d 32 List of Figures FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 FIGURE 5 FIGURE 6 FIGURE 7 FIGURE 8 FIGURE 9 FIGURE 10 MHA and P 5 Models MH 302 MH 302L MH 402 and MH 402L 6 Battery C harner Dida lebe
5. Headset without ANR model 302 and MH 302L Dual Sided Headset with ANR model MH 402 MH 402L The MH Series Headset and Headphone 15 available with multiple cord termination configurations 4 pin XLR male and female 5 pin XLR male and female pigtail quick disconnect and 3 5mm plug with the Auxiliary Audio Module The quick disconnect option allows for quickly terminating your headset to 4 and 5 pin XLR connectors male and female and to a pigtail cord end to meet the needs of the headset or headphone application The modular design of the MH Series allows for many options when configuring the perfect headset for use in your specific environment All the modules are universal which means they are fully interchangeable and giving you more flexibility in your headset needs The versatility of the MH Dual Sided Series is obvious when using the music audio module Installing the auxiliary audio module turns the broadcast headset into an every day every where headset allowing for MP3 player hookup GPS connection and many other applications Expanded frequency response ensures clear communications and enhanced audio performance The adjustable output level allows the user to match the headset to the requirements of the surrounding environment Acoustic design and active noise reduction available with the MH 402 402L combine to remove common environmental noises The design of the MH Series headset with its headband location in
6. relation to the ear cups delivers more stability when the headset is being worn All user contact points ear cup cushions temple pads headband cushions and the windscreen are completely replaceable allowing for good hygiene Introduction MH 300 MH 300L ANR Single Sided Headset Headphone FIGURE 11 Models MH 300 and MH 300L NOTE The MH 300L 15 listen only headphone It does not have a microphone 1 Headset Frame Microphone Module or Auxiliary Audio Input Module Temple Pad Headband Pad Ear Cushion Windscreen Side Cushions Modular Series MH Headsets and Headphones User Manual MH 302 MH 302L no ANR amp MH 402 MH 402L ANR capable Dual Sided Headset Headphone FIGURE 12 Models MH 302 MH 302L MH 402 and MH 402L NOTE The MH 302L and the MH 402L are listen only headphones They do not have a microphone 1 Headset Frame Microphone Module or Auxiliary Audio Input Module Headband Pad Ear Cushion Filler Module or Battery Module Windscreen Side Cushions ANR Switch MH 402 402L versions only p nop m On ag 9 NOTE The switch label is used to determine on and off position ANR Introduction Battery Charger NOTE For more information see Battery Module on page 21 Front Rear FIGURE 13 Battery Charger Reference Diagram 1 Operation LED 2 Module Release Button 3 Power Supply Connector Battery
7. 2 Adjust the microphone for proper use Step 3 Turn on ANR See Configure ANR MH 402 and MH 402L Only on page 14 Step 4 Plug the headset in Headset Adjustment and Sizing The headset should fit comfortably over the head and ears without pinching or gapping A comfortable fit is conducive to effective and pleasant use To adjust the headband size do the following 1 With the headset resting securely on the top of the head slide the ear cup up and down to center the ear cup over the ear 2 Swivel the ear cup left or right to position the ear cup flat on the ear Move Back and Microphone Adjustment From the factory the microphone 15 installed on the left side of the headset However you can interchange the microphone for right side use see Remove and Replace any Headset Module on page 9 Replace the Earcup Temple and Headband Cushion There are three 3 cushion replacement points on the MH Series Headset ear cups temple pads and the headband 15 Modular Series MH Headsets and Headphones User Manual The MH 302 302L and the MH 402 402L have two 2 ear cup cushions and a headband cushion while the MH 300 300L has one 1 ear cup cushion one 1 temple pad and a headband cushion To replace the ear cup cushion do the following 1 Grasp the worn ear cushion and carefully pull it off the ear cup 2 Starting at the top of the ear cup place the top part of the back flap of the new ear cushion
8. Charger Power Supply World Power Supply Adapters optional FIGURE 14 Standard Power Supply and Plug Adapters Standard Power Supply World Power Supply Adapters Optional P N PRD000260005 1 Wall Pack 3 UK Plug optional 2 US Plug standard 4 Euro Plug optional 5 Australian Plug optional a The MH 402 and MH 402L come standard with the AC Adapter kit which includes all of the above options P N EML000012001 Modular Series MH Headsets and Headphones User Manual 2 Configuration Operation and Maintenance The MH Series Headsets and Headphones were designed for use in multiple applications As such when using the headsets and headphones specific for you application refer to the following sections to verify the proper configuration and settings Before First Use Battery Charging MH 402 Series For information on charging the battery see Charge the Battery on page 22 Battery Installation MH 402 Series For information on installing the battery see Battery Module on page 21 Remove and Replace any Headset Module To remove a module do the following 1 Press the module release button located at the bottom of the ear cup The module pops up from the ear cup Release Button 2 Slide the module out and up taking care to clear the mounting tab from the mounting tab hole Modular Series MH Headsets and Headphones User Manual To replace a module do the f
9. Connettore eee ee eee o ente ub eoe leere oet 011 149747 Cable Quick Disconnect to A4F CONN GC ss 011 149749 Cable Quick Disconnect to A5MECOBBOCTOE 2 Mike E eser 011 149751 P F01U149753 Disconnect to Pitas uoo aed ee aane ease F01U149755 igiene ER F01U149757 Temple F01U149759 AS usse Eu a beluis uua unc cuc F01U149761 Dynamic Microphone Module Connector seien eee oe ehh ne tnit euo uote du ee eod Deoa a eve ea mee un e uud baie eese tete ee eU F01UI67564 Dynamic Microphone Module AAFC Onfleebof uma oet eei Pr cote ten d ed 010167565 Dynamic Microphone Module ASM Connector gerea eee en ea eas dese F01UI67566 Dynamic Microphone Module ASF COMM DOT anui o pe deiecta bbb ndun
10. ELING The MH series headset and headphones are audio level limited and conform to the EU Council Directive 2003 10 EC The time weighted average of noise exposure levels for a nominal 8 hour working day is not expected to exceed 85dB SPL and a peak of 137dB SPL Available MH Series Accessories US UE EE T F01U149725 Dynamic Microphone Windscreen ttti a dr LET 011 149727 FAC AG DANG 011 149729 cC c PEN FO1U149731 Battery harper N rtin Aine ooo aedi Ml Co NI M DI ue LEM 011 149733 World Power Supply Adapters F01U149735 AU bare 011 149737 sinele Sided Passive Headset Frame ASsembly 011 149739 Double Sided Passive Headset Frame Assembly cc F01U14974 Analog ANR Headset Frame Assen Bly ee toi o eet eL ee F01U149743 Dynamic Microphone Module Quick Disconnect Connector ul 011 149745 Cable Quick Disconnect 10 A4 ME
11. Please include a copy of receipt if available Along with the unit please include your name billing and shipping address telephone number and a brief description of the problem you are experiencing Allow 7 10 working days for service plus transportation time once we have received the unit for repair refurbish For questions about repair please call customer service at 800 553 5992 My ANR Automatic Noise Reduction Headset is Verify the ANR switch is in the on no longer working position Verify the battery 15 installed properly Verify the battery is charged Verify the cushions are installed properly Verify the headset is on the head properly Verify the ear cushions are seated on the ear properly If you have verified the previous bullets then send the unit in for repair My headset does not work with my MP3 player Verify the cord for the device is plugged firmly 31 PROBLEM SOLUTION I need parts for my headset Contact customer service for the part number you are looking for How long will it take my headset to be repaired Repair duration is usually 7 to 10 working days plus shipping time back to the customer
12. RTS nnovating the Future of Global Communications Modular Series MH Headsets and Headphones User Instructions gt Models Include MH 300 MH 300L MH 302 MH 302L MH 402 MH 402L F01U217863 LIT000404000 Rev 04 4 2011 PROPRIETARY NOTICE The product information and design disclosed herein were originated by and are the property of Bosch Security Systems Inc Bosch reserves all patent proprietary design manufacturing reproduction use and sales rights thereto and to any article disclosed therein except to the extent rights are expressly granted to others COPYRIGHT NOTICE Copyright 2011 by Bosch Security Systems Inc All rights reserved Reproduction in whole or in part without prior written permission from Bosch is prohibited WARRANTY AND SERVICE INFORMATION For warranty and service information refer to the appropriate web site below dg o WWNW rtsintercoms com warranty dk cin e WWNW rtstw com warranty AudioCom www telexaudiocom com warranty www telexradiocom com warranty Headsets tn www intercomheadsets com warranty REGULATORY INFORMATION FCC This device complies with part 15 of the FCC Rules Operation 15 subject to the following two 2 conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation LIMIT LEV
13. as stereo capabilities Switch Position 1 15 DOWN 2 15 13 Modular Series MH Headsets and Headphones User Manual Configure ANR MH 402 and MH 402L Only ANR 15 used to reduce unwanted noise in the headset from the surrounding environment The ANR switch 15 located on left ear cup as seen Figure 15 Back of Headset ANR Switch Detail A FIGURE 15 ANR Switch To turn ANR on do the following gt the left ear cup move ANR switch to up position To turn ANR off do the following 1 On the left ear cup move the ANR switch to the down position 2 Remove battery if applicable to conserve battery power Configure Auxiliary Audio The MH Series headset can also be used to listen to music GPS information etc To use the MH Series headset for audio input do the following NOTE The battery module is only needed when you want to use the ANR feature of the MH 402 or MH 402L Step 1 If necessary install the battery module into the headset See Battery Module on page 21 Step 2 Install the audio input module Step 3 Adjust the headset for proper fit and comfort See Headset Adjustment and Sizing on page 15 14 Configuration Operation and Maintenance Operation and Maintenance To operate the MH Series headset do the following Step 1 Adjust the headset for proper fit and comfort See Headset Adjustment and Sizing on page 15 Step
14. dsets and Headphones User Manual Female Pin 5 Pin 5 Pin 4 Pin 3 Pin 2 Pin 2 Pin 3 Pin 4 FIGURE 19 5 Pin XLR Connector Female and Male TABLE 4 5 Pin XLR Pin Out Wire Color Description 5 Rd al Pig Tail Connector Pigtail connectors give you maximum flexibility in the type of connector you want to use Table 5shows the wire colors and descriptions for the pigtail TABLE 5 Pig Tail Connector Pin Out Description Color Power Green 26 Connectors Quick Disconnect The Quick Disconnect allows you to quickly switch connector types without having to switch headsets saving time and space when you are on the go push together and twist 4 FIGURE 20 Quick Disconnect Connector To disconnect the quick disconnect connector do the following 1 Holding the quick disconnect in both hands gently push each connector end toward each other see Figure 20 2 While pushing toward each connector end twist the connector ends in opposite directions so they unlock The connector comes apart see Figure 20 B To connect the quick disconnect connector do the following 1 Align the opposite connector ends 2 Gently push each connector end toward each other 3 While pushing toward each connector end twist the connector ends in opposite directions so they lock TABLE 6 Quick Disconnect Pin Assignments Pin Color Description Red Speaker Right N C N C
15. e MH 402 and MH 402L ANR headset headphone By using the battery and enabling the ANR the audio quality is markedly enhanced NOTE The battery charger uses a universal power pack with a mini USB connector that is compatible with many devices that accept the connector for example a cell phone Replace the Battery CAUTION If this is the first time using the batteries see Charge the Battery on page 22 Batteries can be installed on either ear cup the left or right To replace a battery module do the following 1 Align the mounting tab with the mounting tab hole 2 Slide the battery module into place 3 Press down on the battery module snapping it into the ear cup 21 Modular Series MH Headsets and Headphones User Manual Charge the Battery IMPORTANT Before installing the battery for the first time charge the battery for at least an hour and a half to ensure a fully charged unit A fully charged battery lasts approximately 40 hours between charges LED Indicator FIGURE 17 Battery Charger Reference Diagram The battery charger has an LED shown in Figure 17 that displays two 2 color states Green LED The charger is on Red LED The battery is being charged Once the battery is done charging the green LED appears NOTE If the battery is damaged and not able to charge or if the battery 15 fully charged red LED does not display The power module for the battery charger comes with the US connect
16. ion adaptor as standard There are three 3 optional connection adapters Euro UK and Australian also known as the world adapters 22 Battery Module To change the connection adapter for the power module do the following 1 While pressing the adapter lock button turn the adapter counter clockwise to release the adapter Adapter Lock PARTN on 01 MODEL 08 0 TUN INPUT 100 240 50 60Hz 0 OUTPUT 5V 1500mA 2 Replace current adapter with desired power module adapter 3 Turn new adapter clockwise to lock it in place To charge a battery do the following 1 Plug the power supply into an electrical outlet 2 Attach the power supply to the charger The LED lights green 23 Modular Series MH Headsets and Headphones User Manual 3 Align the mounting tab with the mounting tab hole on the battery charger Mounting Tab Mounting Tab Hole 4 Slide the battery module into place 5 Press down on the battery module snapping it into the ear cup The LED lights red while the battery is charging and lights green when it is finished charging 24 4 Connectors XLR Connectors Female Pin 4 Pin 1 Pin3 Pin2 FIGURE 18 4 Pin XLR Connector Female and Male TABLE 3 4 Pin XLR Pin Out Wire Color Description Yellow Red SPK and L dual Inner Shield MIC SHIELD 25 Modular Series MH Hea
17. n lightweight construction installation options and its multi function use beyond the live studio or theater venue the MH Series Headsets are designed with you the user in mind The modular design allows you to interchange different modules to customize the best headset for your environment The noise canceling microphone combined with the headphone transducers and ANR Active Noise Reduction provides clear and precise communication in noisy environments Finally this headset is not limited to live studio or venue communication By installing the auxiliary audio input module you can connect to an MP3 player and many other audio devices The MH Series Headsets and Headphones provide clear communication for professional applications including live remote or studio broadcasting film TV and theater intercom communications TERMINOLOGY In this manual a Headset refers to a device you wear on your head that allows you to both listen and speak A headset always has a microphone Headphones are an audio only device you wear on you head that allows you to listen only Modular Series MH Headsets and Headphones User Manual Features Three 3 Headset Frame Options Cord Termination Modular Design Acoustic Performance Comfortable Design The MH Series gives you three 3 options when selecting the type of headset for your environment Single Sided Headset without ANR model MH 300 and MH 300L Dual Sided
18. nts 12 speaker Mode 13 13 Configure ANR MH 402 and MH 402L Only 14 14 Dales cf gt en ee ee eee ee eee 15 Headset Adjustment SU ZAIN 15 Microphone 15 Replace Temple and Headband Cushion re e heo INT 15 FRG plate 19 Care dnb 19 19 Store Transport Headset 402 MH 402L Only 19 21 Bain ME 21 21 Hie CSCS A EE A 22
19. ollowing 1 Align the mounting tab with the mounting tab hole Mounting Tab Mounting Tab Hole 2 Slide the module into place 3 Press the module down snapping it into the ear cup 10 Configuration Operation and Maintenance Configuration NOTE The MH Series headset and headphones have been configured for use in the most common applications We recommend the configuration not be changed unless absolutely necessary The following information details configuration settings for e Speaker Volume see Configure the Speaker Volume on page 12 e Speaker Mode see Configure Speaker Mode on page 13 ANR Mode see Configure ANR MH 402 and MH 402L Only on page 14 e Auxiliary Audio see Configure Auxiliary Audio on page 14 Access the Dip Switches The speaker volume or the speaker mode of your headset is configured using a series of dip switches located on the side of the microphone module or listen only module To access the dip switches do the following NOTE Dip switches are located on the microphone module and the listen only module This feature is not available on the audio input module 1 Remove the microphone module or listen only module 2 Locate the dip switch bank on the side of either the microphone module or the listen only module 11 Modular Series MH Headsets and Headphones User Manual Configure the Speaker Volume Speaker Volume is config
20. over the top lip of the ear cup NOTE The ear cup cushion hole orients to the bottom of the ear cup 3 Using your fingers work the back flap of the ear cushion around the ear cup 4 Pull the bottom of the ear cushion over the bottom lip of the ear cup 16 Configuration Operation and Maintenance To replace the headband cushion do the following 1 Grasp the headband cushion 2 Pull the worn cushion off the headband 3 Remove the protective paper from the sticky side of the new headband cushion NOTE The headband is affixed to the headband with adhesive tape Double sided Tape on Cushion 4 Align the new headband cushion to the headband frame 5 Firmly press the new headband cushion in place To replace the three cushion version headband cushion do the following 1 Grasp the headband cushion 2 Pull the old cushion off the headband Place top cushion here Place right Place left side side cushion cushion here here Align the new top cushion to the top of the headband Align the right side cushion to the right side of the headband Align the left side cushion to the left side of the headband Firmly press the new headband cushions in place pa 17 Modular Series MH Headsets and Headphones User Manual To replace the temple pad cushion do the following 1 Grasp the temple pad cushion 2 Pull the worn cushion off 3 Remove the protective paper from the s
21. ticky side of the new temple pad cushion NOTE The temple pad is affixed to the headband with adhesive tape 4 Align the new temple pad cushion to the headband frame 5 Firmly press the new temple pad cushion in place 18 Configuration Operation and Maintenance Replace the Windscreen To replace the wind screen do the following 1 Remove the worn windscreen from the microphone and discard 2 Gently pull the new windscreen over the microphone Pull from top of the windscreen to remove m Pull from the bottom of the windscreen to secure in place Care and Maintenance Clean the Headset When cleaning your headset do the following use a soft slightly damp cloth water only if necessary a mild mix of soapy water may be used IMPORTANT Excessive water can damage the headset and cause short circuits to the electrical components of the unit Do not use solvents or chemicals when cleaning your headset as it may cause damage or inoperability Store Transport the Headset MH 402 and MH 402L Only For storing or transporting your MH 402 402L headset use the protective carrying case the headset is shipped in Place the headset in the carrying case as shown in Figure 16 FIGURE 16 MH 402 402L in Carrying Case 19 Modular Series MH Headsets and Headphones User Manual 20 3 Battery Module Battery Module The battery module is only used with th
22. ured using dip switch settings located on the microphone module and the listen only module To adjust the speaker volume do the following gt Using a small flathead screwdriver or other device adjust the speaker volume See Table 1 Dip Switch Settings NOTE Only switch positions 3 and 4 are used to configure speaker volume TABLE 1 Speaker Volume Dip Switch Settings Dip Switch Description Reduced Volume e Position 10dB from Normal Volume in UP position Normal Volume Default Switch 3 amp 4 in DOWN position 12 Configuration Operation and Maintenance Configure Speaker Mode Audio on the headset can be configured to be heard either Mono Left Only or Stereo This means it can come from both sides of the headset or from the left side only NOTE The stereo option can only be used with the 5 pin XLR connector versions This configuration is done through setting dip switches located on the main board of the headset NOTE To access the Dip Switches see Access the Dip Switches on page 11 To configure speaker mode do the following Usinga small flathead screwdriver or other device set the dip switches to the mode of operation desired See Table 2 Dip Switch Settings TABLE 2 Mono Stereo or Left Only Dip Switch Settings Dip Switch Description Switch Position 1 in UP position Switch Position 1 in DOWN position Stereo Mode NOTE Any module using ASM or ASF connectors h
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