rgb->scart cable

[Chipmunk_UK_1]

I've had problems when using RGB cables on some TV's where plugging in the cable will still show whatever channel was selected, with the amiga screen scrolling and rolling over the top with funny colours, the works...

Switching the TV to the AV channel has always fixed this for me.

Its probably the TV's were ignoring the BLANKING pin, or the cables I used didn't have that pin connected.)

Connecting my DVD player, or SKY box to the RGB port autoswitches to AV0 on my current TV, but my miggy don't so I have to choose AV0 first.

Anyway, my 2p worth

[Sid]

Originally Posted by alexh

If you have more than one they will be called something like AUX1 or EXT1 etc.

I have EXT1 EXT2 EXT3 ...

Its been a while since I tested it... and now that I know this forum exists, I shall try again and hopefully report back with more detail.

Cheers.

[alewis]

And it aint just Miggy's that suffer from this... 2 SCART sockets (1 supports RGB, the other doesn't) and 1 S-VHS.

Attached are: Sky box, VHS, DVD, PS2. Does it autoswitch? Does it hell! Does the "fully wired auto-sensing SCART expander" work... does it hell. They all connect, by hook and crook, but its a bugger's muddle.

Added a media player to the mix ;-) (old Compaq DeskPro EN with a TV card and Video-Out)... to the 3rd socket on the expander... that really caused issues.

SCART suffers from too many variations. If you can get it to work, its great and the picture quality is excellent. I remember getting a 1084S monitor for the Miggy, and seeing a mates Mig hooked via SCART and thinking I had really wasted a couple hundred quid on a monitor when a portable and SCART would have been cheaper - and more flexible - solution. Many years later, when I learned about SCART/RGB/Euro etc I realised I had inadvertently saved myself a lot of hair tearing!

Sid - *Generally* EXT1 is RGB, you might find EXT2 is as well. Consult TV manual for more details.

[alexh]

DVD players & Sky boxes are natively SVideo so they dont need an RGB SCART.

VHS players dont do RGB and are natively Composite so it dont matter which they connect to.

Only your PS2 needs the RGB connection.

[Syko]

There is only one SCART standard, but most companies don't bother implementing the bits that make it work right, like the autoswitch voltage pin... there is a 12V available on the miggy, and it works with the cable I made, your milage may vary

[alewis]

Originally Posted by alexh

DVD players & Sky boxes are natively SVideo so they dont need an RGB SCART.

VHS players dont do RGB and are natively Composite so it dont matter which they connect to.

Only your PS2 needs the RGB connection.

DVD players are not natively s-video. They can be RGB, progressive scan, composite.... zzzzzzz. They are "natively" whatever the manufacturer decides.

Tho, thats immaterial really as I wasn't bemoaning what they were or weren't, but the fact the auto-switching didn't work. So I have to manually change inputs depending on what source I want to watch/play. I really must install the NAD and let that take care of it all.

[alexh]

DVD players are not natively s-video.

Yes they are DVD's are encoded in Y'CbCr colourspace.

They can be RGB, progressive scan, composite.... zzzzzzz.

The natural output of a DVD decoder is the Y'CbCr colourspace which S-Video uses. What a DVD player then does to the signal is irrelavent.

I design DVD chipsets and Freeview chipsets for a living.