Im trying to make a SVGA lead into a RGB SCART lead.
Everything is fine until you have to deal with the sync.
SVGA uses horizontal sync and vertical sync and SCART only uses composite. The are a few bits and bobs to put in the circuit but nothing too difficult.
Here is a diagram
**broken link removed**
I then pulled a female SCART from a DVD player only to find a little board with a few resistors and transistors on and a plug which leads to the motherboard of the DVD player.
The plug running from the motherboard to the scart board has lines I expect to see but no sync lines... or at least that I can tell.
There is...
12v
L
R
GND
V (Composite video out?)
GND
R
G
B
FS
+5v
GND
Here is a pinout of the SVGA
https://en.wikipedia.org/wiki/VGA_connector
and also of the SCART
https://en.wikipedia.org/wiki/SCART
The bit at the bottom of the SCART wiki about Blanking and Switching is relevant.
My question is how does this work when there is no sync going to the SCART board. Surely the few resistors, transistors and thermistors cant sort the sync issue out?
Hope someone can help! It will be so much easier to use this little scart board.
Everything is fine until you have to deal with the sync.
SVGA uses horizontal sync and vertical sync and SCART only uses composite. The are a few bits and bobs to put in the circuit but nothing too difficult.
Here is a diagram
**broken link removed**
I then pulled a female SCART from a DVD player only to find a little board with a few resistors and transistors on and a plug which leads to the motherboard of the DVD player.
The plug running from the motherboard to the scart board has lines I expect to see but no sync lines... or at least that I can tell.
There is...
12v
L
R
GND
V (Composite video out?)
GND
R
G
B
FS
+5v
GND
Here is a pinout of the SVGA
https://en.wikipedia.org/wiki/VGA_connector
and also of the SCART
https://en.wikipedia.org/wiki/SCART
The bit at the bottom of the SCART wiki about Blanking and Switching is relevant.
My question is how does this work when there is no sync going to the SCART board. Surely the few resistors, transistors and thermistors cant sort the sync issue out?
Hope someone can help! It will be so much easier to use this little scart board.