I have a yamaha htr 6130 receiver. Hooked up to it are a dvd player, cable box, and the t.v. Where (which inputs) do I put in the wii connections? I know it's the yellow, white, red ... but there are so many I don't know which one. They are marked dvd, dtv/cable, dvr in and out, and monitor out. We tried hooking up the wii thru the back of the t.v., but the remote does not let us access the tv auxiliary and thus won't connect. Truly, I am electronically challenged - a real novice. Help? What do I do to connect my wii and get it to work?

On this receiver the tv must be connected to the Monitor RCA Composite (yellow) output in the rear when you use another Composite input. You can't connect the Wii with the Composite and expect to use the tv with the HDMI - this unit doesn't have an onboard converter.
Once you have connected it correctly just select as a source the front connectors.

It could have to do with the settings on each input device (xbox & DVR) -check their audio settings. I have a better solution for your problem though:
Since HDMI supports 7.1 ch of digital sound, I'd recommend using the optical inputs on your HTR-6130 that are made for 5.1 ch sound. I agree that you should be getting sound via HDMI, I was able to from my xbox to my 6130, but it gets cut down to 2 channel sound (good, but pales compared to true 5.1 ch sound). It believe it has to do with Dolby not being backward compatible going from 7.1 to 5.1. Anyhow, in order to get an optical-out on your xbox, you'll need connect with the a/v cables that came with the xbox, along with the HDMI cable. Depending on how old your xbox is, and which model (like an elite edition, etc), You may need to buy a special converter that will allow enough room for both an HDMI connection and the A/V connection. Trust me, I have an HTR-6130 with an xbox and a cable-provider issued box running through it. Optical is the way to go for this particular receiver since it only supports 5.1 ch sound. You can still use the HDMI ports on the receiver as a switch between your two devices, or you could choose to bypass it if you TV has more than one HDMI input port.

its not how there connected its in your settings. rehook up all your speaker connections properly,then make sure you proram the reciever to recieve fiber optic,hdmi,digital coax etc in the reciver.

Connect the DVD player audio with digital coax into the digital audio connection as you described and the DVD video directly to the TV. Now switch the input mode on the receiver to DVD. Then switch the video output mode on the TV to correspond to the input you plugged into. Any source in 5.1 dolby digital or dts should now work properly and have picture too.

You need to connect a composite cable from the receiver. The receiver does not carry a composite signal over component cables.

Have you configured the digital output settings on the DVD player? You may need to set the digital output format in the DVD player setup menu. If it is set for LPCM then you won't get sound. It has to be set for bitstream and yoou may need to tell the player what output to use.

As you didn't mention the brand of DVD player, I can't really give you any detailed instructions.

Also try using the optical cable that you have connected to the cable box to test it and see if you get any output on that connector. If yyou do then it is a setting in the amp that is not configured properly,

Best of luck

Cheers

Actually I found in the sound menu on the receiver that there is an input source setting changer for the 3 digital audio inputs. Also you can change the names of the other inputs to match your components needs.

Good work Yamaha.

You may need to set up the receiver for your speaker configuration. There should be a setup menu on the receiver, and that will allow you to tell the amp what speakers you are using, and what inputs you are connecting what devices to. You may also need to set your DVD player, cable box and TV for the audio stream you want to use. PCM or Bitstream to be more precise. Also make sure that the sound output is set to Dolby Pro Logic or Dolby Digital and the input signal is in stereo or surround.

Best Wishes.

The HTR-6130 does not decode the audio from the HDMI inputs. It only acts as a switcher. You will need a separate audio connection from the cable box to the HTR-6130.

Is Yamaha HTR-640 a receiver? Try HDMI from PS3 to receiver or Sony HDTV. If HDMI from PS3 to receiver the you need and HDMI from receiver to out Sony HDTV. You could connect everything to receiver and HDMI out to HDTV. You can not have an HDMI cable AND an optical cable coming out of the PS3, only one or the other.