Problems Connecting Macbook Pro to Analogue TV

[desertandy]

Hi,

I'm hoping someone can help with a problem I'm having connecting my MacBook Pro to my analogue Toshiba TV. I bought a mini display port to DVI adaptor, and a DVI to video adaptor, and connected this with an s video cable to my TV; but no I get no picture or sound on the TV from the laptop. Any ideas as to where I'm going wrong?

The mini display to DVI adaptor I got is this one -

http://www.amazon.co.uk/gp/product/B...ef=oss_product

and the DVI to video adaptor I got is this one -

http://www.amazon.co.uk/gp/product/B...ef=oss_product

They connect together fine and then i connect the video cable to the TV and nothing on any channel of the TV...any help to isolate the problem and get the macbook pro connected to the TV would be much appreciated.


thanks

 

[stordoff]

Your Amazon links don't work.

I suspect that the MDP to DVI adaptor is only supplying a digital signal (i.e. it is DVI-D not DVI-I), so the DVI to S-Video adaptor isn't getting the analogue signal it needs.

 

[desertandy]

Oops, corrected link to the MDP - DVI adaptor is:

http://www.amazon.co.uk/Apple-Displ...3?s=electronics&ie=UTF8&qid=1314876452&sr=1-3

And DVI - Video Adaptor is:

http://www.amazon.co.uk/DVI-Video-A...1_1?s=computers&ie=UTF8&qid=1314876657&sr=1-1

The Description for the MDP-DVI adaptor states it can support both DVI-D and DVI-I. Perhaps there's an issue with the DVI-Video adaptor receiving a DVI-I signal?

Thanks for any further help.

 

[VABuckeye]

What connection are you making for audio to the TV? I don't see that listed in your post.

 

[desertandy]

i was thinking the RCA jack (which sits alongside the S-Video out) on the DVI-Video adaptor would allow me to carry the sound..either that or connect to the TV direct from the macbook's line out (headphone jack)

 

[VABuckeye]

That is a composite video out. You're not going to get sound out of it. You'll have to use the headphone out jack which may not output enough signal to work through the TV. If the TV has left and right audio inputs (red and white RCA jacks) you'll need a "Y" cable to make both speakers in the V work.

 

[desertandy]

Thanks for the advice re sound.

I came across this youtube video addressing exactly this macbookpro - analogue TV issue. Seems only to deal with picture (not sound) but may be of use to others with the same problem -

http://www.youtube.com/watch?v=Aa1C7YLFWmw

advising to go from mini display port to VGA then through a converter box such as this -

http://www.bestofferbuy.com/USB-Pow...ce=gbase&utm_medium=cse&utm_campaign=gbase_uk

then to your TV via either S-video or composite video. This is what i'll try now...