User manual SENNHEISER SET 840 S

[. . . ] Wireless TV Listening System Set 840 S Instruction manual I 1 5 2 34 5 6 7 R II D C 8 9 B A 0 HI FG E Contents Contents Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Delivery includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Putting the Set 840 S system into operation . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The operation indicator B on the transmitter lights up green. EU UK N US O I N When connecting the transmitter to the mains for the first time, charge the rechargeable battery for 3 hours as described in the chapter "Storing and charging the receiver" on page 20. If there is no audio signal from the sound source for about 3 minutes, the transmitter automatically switches off. To disconnect the transmitter from the mains, pull out the mains connector from the wall socket. to your P To remove the receiver: Pull the clip P with the receiver away from your clothing or belt. 14 Using the Set 840 S system Using the Set 840 S system To switch the Set 840 S system on, proceed as follows: Sequence of steps Page 1. If necessary, set a different channel on the 17 transmitter. Switching the transmitter on/off To switch the transmitter on: Switch your sound source on. If the transmitter doesn't switch on: Read the corresponding chapter on page 26. The operation indicator B goes off. 15 Using the Set 840 S system Switching the receiver on/off CAUTION!This receiver allows you to set higher volumes than conventional devices. This can cause hearing damage in persons with healthy hearing and especially in children. Before using the receiver, set the volume on the receiver to a low level. To switch the receiver on: Keep the on/off button 3 pressed until the channel indicator 1 lights up. To switch the receiver off: Keep the on/off button 3 pressed until the channel indicator 1 goes off. If you are not within the range of the transmitter, the receiver automatically switches off after 3 minutes. 1 3 Adjusting the volume Use the volume control 2 to adjust the volume to a sufficient and comfortable level. 16 Using the Set 840 S system Searching for a sound source Switch the receiver on. The receiver automatically searches for one of the 3 channels of the transmitter and starts the channel search on the last selected channel. Depending on the channel found, the receiver produces 1, 2 or 3 beeps (see page 24) and the channel indicator 1 on the receiver lights up as follows: The channel indicator 1 goes off after 30 seconds so that the light won't disturb you in a dark room. To continue the channel search: Press the channel search button 6 on the receiver repeatedly until you have found your sound source. If you still cannot find your sound source: Change the transmission channel as described in the next chapter. Read the chapter "If a problem occurs . . . " on page 26. 6 Changing the transmission channel If several transmitters are operated simultaneously and are very close to one another, reception can be subject to interference (e. g. hissing noise). 17 Using the Set 840 S system Change, if necessary several times, the position of the channel selector switch H on the transmitter to change to an interference-free channel. You can choose between 3 channels. H Press the channel search button 6 on the receiver to re-start the channel search. If reception is still subject to interference: Read the chapter "If a problem occurs . . . " on page 26. Adjusting the balance The balance control allows for right/left volume adjustment. Turn the balance control 4 to the left L or right R in order to increase the volume for the corresponding ear. 4 Switching between mono and stereo operation If, despite a correct balance adjustment, you can hear the sound only with one ear: Set the ST/MO switch F on the transmitter to MO (mono). F 18 Using the Set 840 S system Meaning of the terms "mono" and "stereo" Stereo (ST) Mono (MO) L R L+R Example: L: Speech from the left R: Music from the right You hear speech from the left and music from the right. [. . . ] 50 mV/m (at a distance of 3 m) up to 100 m up to 100 ft 3. 5 mm stereo jack socket 13. 5 V 2. 4 W (incl. battery and receiver charging and with switched-on transmitter) 140 mA approx. 112 x 146 x 58 mm 32 Specifications Receiver Audio connection Power supply Operating time Weight Dimensions NT 13 mains unit Nominal input voltage Mains frequency Nominal output voltage Nominal output current Ambient temperature 3. 5 mm stereo jack socket via BA 300 rechargeable Li-Pol battery (3. 7 V / 150 mAh) up to 9 hours approx. 70 x 60 x 26 mm 100 V~ to 240 V~ 50­60 Hz 13. 5 V DC 500 mA +5°C to +40°C 33 Specifications In compliance with Europe: EMC Radio Safety EN 301489-1/-9 EN 301357-1/-2 EN 60065 The devices can be operated license-free in most countries of the European Union. [. . . ]