[Openchrome-users] VGA to RGB Scart

Ivor Hewitt ivor
Tue Sep 16 01:50:19 PDT 2008


On Sun, Sep 14, 2008 at 10:45:25PM +0100, Paul Gardiner wrote:
> My CN700/VT1622A based MythTV frontend doesn't give quite
> as good a picture as my old DVRs. It's as sharp but, the
> colours are not quite as good. I think it's because of using
> S-Video.  The VT1622A can apparently output component, but
> one of the connections isn't made on the J7F2 board, and
> wiring it up with a soldering iron looks very scary.
> 
> I've read that VGA produces the right level and impedance
> signals to run into Scart. It's just the timings and sync
> that needs altering. Can the CN700 be made to produce
> TV timings from VGA? And does openchrome support that
> mode of use? Also, can the syncs be combined by the
> chip, or does that have to be done with an external
> circuit?
> 

It's not possible to get an interlaced signal from the VGA port unfortunately. So a VGA-SCART convertor won't work I'm afraid.

Ivor.
> 




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