Question about Yamaha RX-V630 Receiver

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Optical Audio Howdy My DVD and my Tivo Series 3 each have optical audio cables. Are these in place of the RCA based cables or must they be used in conjunction? I get audio with the RCA cables but none with the optical, although the red light goes through.

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  • dkeene Feb 08, 2008

    Thank you auddoc. As a side note, with my Yamaha RX-V630, I was unable to hear any sound with the optical cables. As such, I Phoned Yamaha Tech Support. They had me reset the stereo, and like magic, the cables worked flawlessly! Cudos to yamaha even though the unit is several years old and likely discontinued!



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The digital cables should always be used if your whole system allows for it. Generally you have to go through the setup procedure on whatever brand of receiver/ amplifier you own. You didn't mention a brand or model and it doesn't matter. The advice would be the same. Read the owner's manual on how to do this. Digital inputs, such as optical or SPDIF ( the little single RCA plug that also says digital) can usually be set to default ( always on) or may have to be selected manually, each time, depending on the setup procedure. Try both analog and digital. If one sounds better ( it will be very subtle) that generally means the converters in that piece of equipment are better by some degree. Rule of thumb is to use digital between pieces of gear, whenever possible, if only for less noise, caused by RF emission pickup. And please don't buy the overpriced "Gucci" digital or analog cables, like Monster at retail pricing, no matter what **** , the salesman may spout. It's similar to joining Scientology- if you believe unsubstantiated psuedo-science crap people tell you.... you will probably get what you deserve.

Posted on Feb 08, 2008

  • Gregg Sheehan Feb 08, 2008

    Glad they were able to help. Yamaha has always been underrated for both gear and service. Enjoy your audio system.

    On a side note: most receivers do not have a reset mode. If they do, it's accomplished by simply unplugging the unit. I imagine you had to powe-up while holding down a button(s) or something like that, to do the reset?





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Quick and dirty:

From the back of the RCA unit make sure you are using the auxiliary input jacks to connect to the output jacks on the TV.

You will need to go into the setup menu on your TV to select an external sound system and finally you'll need to select auxiliary on the RCA unit to hear the sound from your TV.

Hope this helps,

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Depending on the make and model, you probably have several options. Check the connection sockets on the back of the TV, and look for one of the following:

1. "Audio Out" may have two RCA plugs labeled L and R, for basic stereo sound. These may be colored red and white, and have corresponding plugs on the back or your audio tuner, labeled "In." Use a red and white plugged audio RCA cable to connect them.

2. Alternately "Audio Out" may have what appears to be a headphone jack. Audio cables are available that have the 3.5mm plug on one end and RCA plugs on the other (called a Y-splitter:1 mini-plug/2 RCA plugs.) The RCA plugs will connect to the back of your audio tuner.

3. "Digital Audio Out Optical" is a conection that uses a fiber optic cable. If you have an optical connection on both the TV and tuner, you can use an optical audio cable to connect them.

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Any one of these options will work. The optical cable solution provides higher quality sound, but is more expensive, and unless you have the proper peripheral equipment (like speakers positioned for surround sound) you might not notice the difference anyway. Good luck!

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Read you manual, there is a page with a matrix of the audio in selectiosn that can be made for coaxial and optical on each input. Then you have to go into setting button on the right side of the unit and the "push set" knob to change the inputs for the digital audio.
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Hi, firstly some terminology:
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You are correct that RX-V365 doesn't do audio over HDMI. Moreover it also doesn't do any video processing, which means composite video input will go only to composite video output (and not to component); compoment input only to component output and HDMI input only to HDMI output.

If you have more devices of same video output (in your example the component blue/green/red), you can connect them to TV via the receiver. But if only one device of same video output, you can connect it directly to TV. There is no reason to go through your receiver for video.

For audio, you can use either the analog stereo white/red cables (rx365 has 5 such inputs) or better use digital SPDIF connection, which is slightly better quality and more importantly supports 5.1 sound. There are 2 types - coaxial (orange RCA plug, can use basic rca cable) and optical (square black connector). Receiver has 1x coax spdif input and 2x optical spdif inputs. Look at your other equipment to decide which cable to use.

For the analog audio inputs, I think you can assign it either to composite video or component video. So for DVD audio white/red plugs, you can choose if either Video composite yellow plug named DVD will be used, or component blue/green/red named DVD will be used.

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