Composite and Scart Adaptors

timtheenchanter · 9 Mar 2010

Hi all, have bit or a conundrum.

I have a sky box, and a small dvd/lcd unit I want to use in my caravan.

I have made up the correct AV input lead, because its non-standard.
the lead will output the AV to a fullsize TV, and will receive composite from my DVD player and PC from a proper composite out.

Using a scart-composite adaptor from the sky box, it will not accept the input, using the same adaptor to a fullsize TV however the box is fine.

is the scart composite likly to be naff, or is the signal combined with somthing else, I haven't yet opened up the adaptor to check the pinout...

ChrisFrost · 9 Mar 2010

Check if your Sky box is set to RGB rather than PAL. It's one or the other, but not both with a Sky box. The change is made by following the System Settings > Picture Settings menu trail. Don't forget to Confirm the change so the box stores the new setting.

ericmark · 9 Mar 2010

My DVD will only receive sky if sky is selected after it is turned on. Any power cut and on power up it will not work. Press select button and go around in circle and it all works.

As to why I don't know just know it does. And SCART outlets for Sky box are not both the same. I have swapped and changed cables and found one DVD player will only work with one sky SCART plug.

TV is no better although I know problem here. One SCART has in and out the other just in and some items don't like the SCART with output. It is designed so one can record Freeview but it seems to cause ghost images with some equipment.

Seems only way is to try it.

plugwash · 10 Mar 2010

I wonder if the sky box is looking for a load on the connection and the input on the small monitor is HI-Z

Try adding a 75 ohm resistor (or therabouts) resistor across the composite video output. If my hunch is right this should solve the problem.

timtheenchanter · 10 Mar 2010

thanks, will try that, I have a feeling you may be right, after changing the sky output to PAL from RGB, I now get an intermittant picture (it like output switching on/off)

The scart adaptor if one of those scart to phono adaptors, the dvd unit having a 4pole 3.5mm jack input for the A/V I/O

when you say across, do you mean across composite and ground, or in series with the composite signal??

plugwash · 11 Mar 2010

I mean across composite and ground.

timtheenchanter · 11 Mar 2010

thanks, Ill give it a shot this eve, Ill have to break out the century box....

timtheenchanter · 11 Mar 2010

works a treat, thankyou.

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Composite and Scart Adaptors

ChrisFrost

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