English - 129 EX-LINKConnector for service only.0 USB1(HDD) / USB2Connector for software upgrades and Media Play, etc. You can connect to Samsung’s network wirelessly using the ‘SamsungWireless LAN Adapter’ (Sold separately).For USB HDD, use the USB1(HDD) port.Turning on or off the TV while a USB device is connected may damage the files on the USB device.! AUDIO OUTConnects to the audio input jacks on your Amplifier/Home theater.When connecting, use the appropriate connector (sold separately).When an audio amplifier is connected to the AUDIO OUT jacks: Decrease the volume of the TV and adjust the volumelevel with the Amplifier’s volume control.@ DIGITAL AUDIO OUT (OPTICAL)Connects to a Digital Audio component such as a Home theater receiver.When a Digital Audio System is connected to the DIGITAL AUDIO OUT (OPTICAL) jack: Decrease the volume of the TVand adjust the volume level with the system’s volume control.5.1CH audio is possible when the TV is connected to an external device supporting 5.1CH.When the Home Theater receiver is set to On, you can hear sound output from the TV’s Optical jack. When the TV isdisplaying a DTV(air) signal, the TV will send out 5.1 channel sound to the Home theater receiver. When the source is adigital component such as a DVD / Blu-ray player / Cable Box / Satellite receiver (Set-Top Box) and is connected to theTV via HDMI, only 2 channel sound will be heard from the Home Theater receiver. If you want to hear 5.1 channel audio,connect the digital audio out jack on DVD / Blu-ray player / Cable Box / Satellite receiver (Set-Top Box) directly to anAmplifier or Home Theater, not the TV.NNNNNNNW R@!009