DIRECTV HR21P System Manual - Page 75

Cables & Connections HDMI HDMI OPTICAL HDMI and HDMI Optical Jack and Cable The DIRECTV HD DVR PRO incorporates HDMI™ [or High-Definition Multimedia Interface] technology. HDMI offers a high-quality connection that combines video and audio signals into a single cable. The HDMI jack uses HDCP content protection to allow you to view HD programming that has been encoded using the HDCP protection system. For the best access to HD programming at the highest available resolution, connect this to an HDTV that supports HDCP technology. DVI (Digital Visual Interface) is an older digital connection standard that has been replaced by HDMI and is compatible with HDMI. DVI carries video only. You can also use an HDMI to DVI converter (not included), which also carries video only, so must be used with audio cables to receive the audio signal. HDMI Optical provides the same quality signal as regular HDMI. With an optional signal converter and a fiber optic cable, you can place your DIRECTV HD DVR PRO up to 300 feet from your TV set. Component Video Output (YPbPr) The component connector provides high-quality video for your HDTV system. Component video is also Y Pr Pb referred to as "YPbPr." It uses three separate cables-with connectors colored green, red and blue-one for each component of the HD video signal. A separate audio connection is also required, using either Digital Audio Optical cable or the audio portion of an A/V cable. Digital Audio Outputs (Optical Jack and Cable) The Digital Audio Optical cable provides the best quality audio. The jack and cable use light to send digital audio data to A/V receivers equipped to receive and interpret it. The jack and cable (cable not included) must be aligned before plugging in, and may be covered by protective caps, which must be removed before making connections. Use caution when handling optical cables: They are delicate! 65