Question about Sony STR-DG520 Receiver

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Receiving "Unlock" message and "Not Used" on my reciever

I have my HDMI Satellite receiver connected to the BD HDMI port and my HDMI xbox 360 connected to the DVD HDMI port. I have an HDMI cable connected to HDMI out on the receiver to the TV. Even though HDMI transmits both audio and video I can not get any sound at all through the receiver for either component. When I try to adjust the receiver I get the "Unlock" message not sure what this means as there is no reference to unlocking anything in the manual. How do I get sound out of the Satellite AND the xbox 360 through the receiver? Also when I push the Input Mode button I get the message "Not Used" I also can't find reference to this message. Please help

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  • Anonymous Jan 10, 2009

    same problem

  • Anonymous Mar 07, 2009

    Same problem

  • Anonymous Mar 16, 2014

    I'm trying to hook my Xbox 360 up to a marantz 4000 I can get the video to go through the receiver and come up on the tv but can't get the audio to work on my center speaker which is successfully connected to the receiver

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The HDMI inputs are pass through inputs only. The reciever cannot recieve any sound signals through the HDMI's. The reciever acts as a selector switch for the HDMI inputs. Whatever input you have selected on the reciever is the one that is being sent through the output to your TV. The "unlock" display shows when there is no sound signal sent to the reciever. There is no code to unlock. This is the reciever's way of telling you that there is no sound being sent to it from that input. Since there is no sound being processed from the HDMI's, you need to hook up an additional audio cable from the device to the reciever (preferrably an optical cable). When the reciever recieves an audio signal, it will then "unlock" and you will get sound. The only purpose for the HDMI jacks on this reciever is to give you a bonus HDMI jack so you only have to use one on your TV. I know it is confusing. I had to look into this problem myself, so I'm happy to help. Higher end recievers will actually recieve and process sound signals from the HDMI's.

Posted on Feb 06, 2009

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Step 1:

Connect the audio/video input of the component cable into the "A/V" port located on the back of the xbox 360


Step 2:

Match the red, blue and green cables on the other end of the component cable to the corresponding component ports on your HDTV. If your HDTV has more than one set of component inputs, make note of which one you use.



Step 3:

Slide the switch on the component cable to "HDTV."



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Turn on the Xbox 360. Go to "My Xbox." Select "System Settings" then "Console Settings" then "Display" and then "HDTV Settings." Choose the display setting (720p, 1080i and 1080p) that is best compatible with your HDTV. If you're not sure, try them all until you find the one that looks best.



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Disconnect any previously connected A/V or component cables.



Step 7:

Connect the HDMI AV cable connector to the "HDMI AV" port on the Xbox 360.



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Connect the other end to an available HDMI port on your HDTV. If your HDTV has more than one HDMI input, make note of which one you use.



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Turn on your HDTV. Set the video mode to the HDMI port that will be used. HDTVs with multiple component ports will usually label them "HDMI 1," "HDMI 2" and so on.



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Turn on the Xbox 360. Go to "My Xbox." Select "System Settings" then "Console Settings" then "Display" and then "HDTV Settings." Pick the display setting (720p, 1080i and 1080p) that looks best on your HDTV.

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You can get these optical cables pretty cheap on line or even at target. Don't get ripped off by Best Buy for these cables. I love best buy, but they rip off on cables!

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