problem w/ audio out to TV

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Level 1

11 points

problem w/ audio out to TV

I have a MBP 5,2, 17", mid-2009, and am trying to get audio and video out to my TV. I have the Moshi MDP to HDMI adapter, and I've connected it to the DVI input on the TV. I have a cable with a headphone jack that splits into 2 RCA plugs for sound, and have plugged it into the RCA inputs associated with the DVI input.

Video works fine, but I have no sound on the TV. When I checked 'sound preferences', it shows that the sound output is via the headphone port. If I use my headphones, the sound is there.

How would I begin to troubleshoot to figure out where the proble lies? MBP, TV, cable? Thanks for any help.

MacBook Pro, Mac OS X (10.6.5)

Posted on Dec 25, 2010 7:14 PM

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Answer 1

Best reply

Lambstechie

Level 1

45 points

Dec 25, 2010 10:15 PM in response to andygr2

I am just going to guess and say it is your TV. When you select the DVI input the TV would expect audio from a 1/8'' input or maybe no input at all. Then the RCA audio will only when the video input is selected since that is where the audio is plugged it. To confirm this; plug in your MBP to your current config and cycle through the inputs and see if audio passes on one of them. If audio work on another input besides DVI then you would need to re-think your connection to a TV to include Video and Audio.

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Answer 2

andygr2 Author

Level 1

11 points

Dec 26, 2010 7:23 AM in response to Lambstechie

You might be correct. I found something on the Vizio website which is a little confusing, so I'll contact them when they reopen after the holiday.

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Answer 3

andygr2 Author

Level 1

11 points

Jan 1, 2011 4:58 PM in response to andygr2

Based on info from Vizio, I changed my connection to a MDP-DVI adapter and used a DVI to HDMI cable. Then I used the same heaphone jack to RCA input, and now I get video and audi.

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