RE: Composite Video over CAT5e using Baluns

["Keith Doxey" <ukha@xxxxxxxxxxx>]

Hi Nigel,

I assume you are describing PASSIVE baluns rather than active.

What do you get on the TV ?

If it's a Blue Mute screen can you disable that in the menu ?

Some sets are very susceptable to low level signals and will mute the
picture and sound but if you can turn the mute off then you might see it.

I don't think it is the 75 ohm termination problem described in another
post
as that tends to be caused by AC coupled inputs. When the source doesn't
see
a DC path it wont output a signal but the transformer (balun) should
present
a DC path and as you said, the same transformers and source work on a
different TV, likewise a different source work with the awkward TV.

I suspect the level is just a bit too low.

Keith


> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx]
> On Behalf Of Nigel Giddings
> Sent: 11 August 2007 14:44
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Composite Video over CAT5e using Baluns
>
> I wonder if anyone can shed light on an issue I am seeing at
> the moment with one of my TVs.
>
>
>
> I am attempting to distribute Composite Video (with L & R)
> using a pair of Baluns and CAT5e cable. I have one particular
> TV which does not see the output (Composite Video) from the
> Balun and will not display the picture. If I feed a different
> Video source directly it recognizes this and the audio (via
> the Baluns) is played on the Set.
>
>
>
> The same transformers work fine on another TV....
>
>
>
> Are there some TVs that don't like this set-up? Or maybe the
> level is a little low?
>
>
>
> Any suggestions gratefully received.
>
>
>
> Nigel
>
>
>
> [Non-text portions of this message have been removed]
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