RE: Questions about pal clocks

From: Christopher Phillips (cphillips_at_reflectionsinteractive.com)
Date: 2001-11-22 15:30:17

hmm.. except PAL of course will try to fix
this, as it looks like drift, which will
be happening in opposite directions
on alternate scan lines.  IIRC, and
of course you will probably get no colour
at all anyway.

In case you hadn't guessed, IANAVideoEngineer :)




-----------------------------


> -----Original Message-----
> From: Christopher Phillips 
> [mailto:cphillips@reflectionsinteractive.com]
> Sent: 22 November 2001 14:16
> To: 'cbm-hackers@cling.gu.se'
> Subject: RE: Questions about pal clocks
> 
> 
> 
> 
> 
> 
> > 
> > It probably will, but the video timing / color burst will 
> be slightly
> > off, thus the picture on the display will look strange / 
> > black & white.
> >
> 
> wheee..  if the TV doesn't just reject the colour information 
> outright,
> there will be (18MHz-17.73MHz)*(~63 microseconds)=17 extra cycles
> of colour signal in each line.  This should make any solid colour into
> 17 rainbow bands, each about 30 pixels wide.  So the colours
> should be normal a bit less often than once every four chars :-)
> 
> 
> I'd like to see that!
> -Virus scanned and cleared ok
> 
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> 
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