22CONNECTIONSplug on an S-video cable contains four metal pins, plus a plastic guidepin. Be careful to line up the plug correctly when you insert it into thejack on the receiver, source or video display. See Figure 11.Figure 11 – S-VideoComponent video separates the video signal into three components –one luminance (“Y”) and two sub-sampled color signals (“Pb” and “Pr”) –that are transmitted using three separate cables. The “Y” cable is color-coded green, the “Pb” cable is colored blue and the “Pr” cable iscolored red. See Figure 12.Figure 12 – Component VideoIf it’s available on your video display, HDMI is recommended as the bestquality connection, followed by component video, S-video and thencomposite video.NOTES:• Due to copy-protection restrictions, there is no output at theComponent Video Monitor Outputs for copy-protected sources.• High-resolution 1080i and 1080p video signals are not avail-able at the HDMI Output, and are downconverted to 720p forthe Component Video Outputs. If your source outputs analoghigh-resolution video, either use the Component Video Outputs,change the output resolution of your source device to 720p,or connect your source’s component video outputs directlyto your video display.• Due to the design of some video displays, analog 480p or720p component video source signals may produce artifactswhen used with the AVR’s analog video outputs (composite,S-video or component video). If this occurs, try changing theVideo Mode setting in the INPUT SETUP menu, or connectingthe source device’s video output directly to your video display.However, for best results, we recommend that you considerupgrading to an HDMI-capable video display.AntennasThe AVR 347 uses separate terminals for the included FM and AMantennas that provide proper reception for the tuner.The FM antenna uses a 75-ohm F-connector. See Figure 13.Figure 13 – FM AntennaThe AM loop antenna needs to be assembled. Then connect the twoleads to the screw terminals on the receiver. See Figure 14.Figure 14 – AM AntennaRS-232 Serial PortThe RS-232 serial port on the AVR 347 is used only for data. IfHarman Kardon releases a software upgrade for the receiver’s operatingsystem at some time in the future, the upgrade may be downloadedto the AVR using this port. Complete instructions will be provided atthat time.Componentvideo cableAudio ConnectionsLeft RightFront (FL/FR)Center (C)Surround (SL/SR)Subwoofer (SUB)Digital Audio ConnectionsCoaxialOptical Output InputVideo ConnectionsComponent Y Pb PrCompositeS-VideoS-video cableAVR347 harman/kardon17