> Do the scart selection boxes you sell provide complete isolation
> between inputs, as I have had problems with audio/picture
>bleed through with some selectors (of the Argos variety).
>Are all the pins connected and switched or just a selection?
>Thanks for your help
I can't *guarantee* complete isolation but I've had no complaints. Yes all the pins are connected so they work with RGB etc.
The usual reason for "bleed through" (the technical term is "cross talk", I believe) is that people use a fully-wired Scart cable. It's best to cut the unneeded wires in the Scart plug at the TV end. For example, pin 19 carries video *out* of the TV for no reason. All it does is to produce a picture ghost or bad lines on the picture. This can be so, even for so-called "screened" leads. It's also wise to use a Scart lead that's no longer than actually needed - hence my reason for stocking 18" (0.5m) leads.
Unfortunately, I can't answer questions about connecting up specific equipment.
A Scart system works by detecting 12 volts on pin 8. In other words, if, say, the VCR is ON then it puts 12 volts on pin 8 to tell the TV "here I am - look at me". Likewise the Sky Digibox does the same. if it's ON it invites the TV or VCR to look at it by putting 12 volts on pin 8 (or 6 volts if wide screen transmission).
Obviously, if you have more than one piece of equipment running at any one time, they will be fighting for attention. The answer is to switch one off or to disconnect pin 8 and select it manually ("AV in") when required.
Alternatively, use one of my Scart Switching boxes to select manually the input that you require.
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