Onkyo HT-R640 Connecting the AV Receiver, About AV Connections, Optical Digital Jacks

Connecting the AV Receiver

About AV Connections

•Before making any AV connections, read the manuals supplied with your other AV components.

•Don’t connect the power cord until you’ve completed and double-checked all AV connections.

Optical Digital Jacks

The AV receiver’s optical digital jacks have shutter-type covers that open when an optical plug is inserted and close when it’s removed. Push plugs in all the way.

Caution: To prevent shutter damage, hold the optical plug straight when inserting and removing.

AV Connection Color Coding

RCA-type AV connections are usually color-coded: red, white, and yellow. Use red plugs to connect right- channel audio inputs and outputs (typically labeled “R”). Use white plugs to connect left-channel audio inputs and outputs (typically labeled “L”). And use yellow plugs to connect composite video inputs and outputs.

Left (white)	Analog audio	Left (white)
Right (red)		Right (red)
(Yellow)	Composite video	(Yellow)
• Push plugs in all the way to make		Right!
good connections (loose connec-
tions can cause noise or malfunc-
tions).
• To prevent interference, keep		Wrong!
audio and video cables away from

power cords and speaker cables.

AV Cables & Jacks

Video

Cable	Jack	Description
		Component video separates the luminance (Y) and
Component		color difference signals (PR, PB), providing the best
video cable		picture quality (some TV manufacturers label their
		component video sockets slightly differently).
		S-Video separates the luminance and color signals
S-Video cable		and provides better picture quality than composite
		video.
Composite		Composite video is commonly used on TVs, VCRs,
	V	and other video equipment. Use only dedicated
video cable
		composite video cables.
Audio
Cable	Jack	Description
Optical digital		Offers the best sound quality and allows you to
		enjoy surround sound (e.g., Dolby Digital, DTS).
audio cable
		The audio quality is the same as for coaxial.
Coaxial digital		Offers the best sound quality and allows you to
		enjoy surround sound (e.g., Dolby Digital, DTS).
audio cable
		The audio quality is the same as for optical.
Analog audio	L	This cable carries analog audio. It’s the most
		common connection format for analog audio, and
cable (RCA)
	R	can be found on virtually all AV components.
		This cable carries multichannel analog audio and
Multichannel		it’s typically used to connect DVD players with a
		5.1-channel analog audio output. Several standard
analog audio
cable (RCA)		analog audio cables can be used instead of a multi-
		channel cable.

Note: The AV receiver does not support SCART plugs.

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