User manual SENNHEISER HMEC 250

[. . . ] 18 Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Replacing the earpads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Replacing the wind shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Accessories and spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Connector ¼" (6. 35 mm) jack plug 5. 25 mm jack plug for connection to the headphone output microphone input 9 Connecting a mobile telephone The 2. 5 mm jack socket allows you to connect a mobile telephone. For this purpose, the microphone plug must be connected to the aircraft radio/intercom. A suitable adapter for your mobile telephone with 2. 5 mm jack socket is available from your Sennheiser agent. Making telephone calls or operating the mobile telephone limits your attention and may cause accidents. Note: For the latest list of compatible mobile telephones, please refer to the "Cell Phone Compatibility" section on our website at www. sennheiser. com. Search under "Products", "Aviation" and "more info . . . ". Connect the audio cable to the 2. 5 mm jack socket on the operating control and to the corresponding jack socket on your mobile telephone. You can adjust the volume of the mobile telephone via the headset's operating control. However, the functions of the mobile telephone cannot be controlled via the headset's operating control. Switch NoiseGard 2. 0 on (see "Switching NoiseGard on/ off" on page 16). Audio from the mobile telephone and from the intercom are heard simultaneously through the headset. Operate your mobile telephone as usual and observe the manufacturers instructions. 10 Connecting an additional audio player The 3. 5 mm jack socket allows you to connect and listen to an additional audio player (e. g. accident due to reduced Listening to music or operating an audio device limits your attention and may cause accidents. During flight operation, do not use the headset for listening to additional audio sources!Connect the audio cable to the 3. 5 mm jack socket on the operating control and to the corresponding jack socket on your audio player. Switch NoiseGard 2. 0 on (see "Switching NoiseGard on/ off" on page 16). Audio from the additional audio source and from the intercom are heard simultaneously through the headset. Operate the connected audio player as usual and observe the manufacturers instructions. 11 Adjusting the microphone sensitivity The microphone sensitivity has been factory pre-set to 40 mV/Pa as per RTCA DO-214. ³ To change the input sensitivity of the microphone: Use a suitable slotted screwdriver. Turn the microphone sensitivity control ³ as shown. Switching between mono and stereo mode The mono/stereo switch allows you to switch between mono and stereo mode, depending on the intercom system. Set the mono/stereo switch ­k mono ­ k stereo k to the desired position: 12 Using the headset Attaching the cable clip The cable clip ¶ allows you to attach the headphone cable · to your clothing so that the cable doesn't hinder or distract you. Attach the cable clip ¶ to your clothing. ¶ · Adjusting the headset Wear the headset so that ­ the microphone boom » is on the left side of the mouth (see right/left labeling on the headband joints), ­ the headband ´ runs over the top of your head. [. . . ] provided that no national law limits our terms of guarantee 23 CE Declaration of Conformity This equipment is in compliance with the essential requirements and other relevant provisions of Directive 89/ 336/EU. The declaration is available on the internet site at www. sennheiser. com. Before putting the device into operation, please observe the respective country-specific regulations!WEEE Declaration Your Sennheiser product was developed and manufactured with highquality materials and components which can be recycled and/or reused. [. . . ]