8Remote Control Guide:Function1-4 Switch HDMI input 1-4+/- Switch HDMI input to next inputHDMI-Optical Audio output will be convertedfrom the HDMI Input selected.LED willindicate HOPT- Optical Audio is switched from OpticalInput selected.Pressing OPT will automatically synchronize theOptical Input Port to the HDMI port # selected.For example: If HDMI = input 2. Press OPT willautomatically switch Optical Audio Output toinput #2ARC- Optical Audio will play audio from HDTVARC PortNote: to use ARC feature. You may need toenable CEC control on your equipment. LED willindicate APress to directly switch optical input.1-4 Switch Optical input 1-4+/- Switch Optical input to next inputHint:Press OPT to synchronize the Optical InputPort to the HDMI port # selected.Turns ON/OFF the LED light.Turns ON/OFF the HD41-ARCLED willindicate 2