User manual AKG K 406 AFC

[. . . ] To share your listening enjoyment with other persons, you can operate your transmitter with several headphones simultaneously. Connecting cable with stereo mini jack plug and L/R RCA plugs for connecting the transmitter to your audio source Operate the headphones with two AAA size 1. Never try to charge dry batteries using the transmitter's charging feature. [. . . ] 5, plug the red RCA connector (right channel) on the supplied connecting cable into the red AUDIO IN R socket (7) and the white RCA connector (left channel) into the white AUDIO IN L socket (7) on the transmitter rear panel. If the headphones output on your equipment is a 1/4" jack, plug the supplied mini jack to 1/4" adapter jack onto the connecting cable. Before connecting the transmitter to your audio source, switch the audio source OFF. 6/7, plug the red RCA connector (right channel) on the supplied connecting cable into the red LINE OUT R or REC OUT R socket and the white RCA connector (left channel) into the white LINE OUT L or REC OUT L socket on your audio source. 3 Charging the Batteries in the Headphones In order to ensure the longest possible service life for the rechargeable batteries, we deliver them uncharged, inside the headphones. Therefore, you will need to charge the supplied batteries before first operating your headphones system. Before charging, pull the protective foil away from the earphone in a straight movement. WARNING: If you operate the headphones on dry batteries (see section 6. 4), never try to charge the batteries using the transmitter's charging feature. Important: In order to maintain full battery capacity for as long as possible, discharge the batteries completely about once a month: Switch the headphones on and leave them outside the transmitter until the status LED (2) extinguishes. 1 Optional External Charger Alternatively, you use can the optional external charger to charge the batteries as shown in fig. the status LED (2) on the headphones will illuminate red to indicate that the batteries are being charged. Note: You can use the K 306 AFC and K 406 AFC headphones even while charging batteries. If you feel that you need to recharge the supplied batteries more often than would be convenient, you may consider replacing the batteries with new AAA size 1. Make sure to align the batteries with the polarity marks inside the battery compartment. Replace the ear pad on the earphone and rotate the ear pad CW to the point that the ear pad will click into place. If audio signal is present at the transmitter input, the POWER ON/CHARGE LED (11) on the transmitter will light green. After a few seconds, you should hear the signal in the headphones clearly and free of interference. [. . . ] The supplied connecting cable is long enough to allow the transmitter to be placed at a safe distance from interference sources. Interference caused by other users of the 864 MHz LPD band are beyond AKG's control. Press AUTOTUNING switch on headphones or use FREQ selector to select different carrier frequency and press AUTOTUNING on headphones. [. . . ]