[Coco] COCO 2 to VGA

Torsten Dittel Torsten at Dittel.info
Tue Dec 29 07:11:42 EST 2009

> The coco2 cannot be used with my  converter.
> It is not possible to get separate RGB signals
> out the coco2.

Just for the sake of completeness: I have some French (European) 50 Hz 
PAL CoCo1/2s and MC-10s in my collection which do have an RGB out 
(actually SCART compliant signals including the switch and RGB select 
voltage levels). These should work fine with Roy's box, although a sync 
stripping might be necessary to get cleanly separated H and V SYNC 
signals (the board outputs R, G, B and a "Composite Sync" signal which 
is actualy a B&W Composite Video signal. I don't know whether Roy's box 
is able to strip the sync signals on it's own (my C=1084S RGB monitor does).

The space for the RF modulator has been used for the RGB video signal 
mixer. There's an addtional 12V generator on the board too. Heres's a 2B 
board picture: http://dittel.biz/CoCo/pcb_compl2.jpg and here the MC-10: 

German CoCo Nut since 1981.

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