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Dreamcast video output problem.

Ergot

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I have a Dreamcast that is displaying incorrectly (see photos). The photos show the image via RGB scart, I have tested it with a composite cable and get no image.It works fine via my VGA cable, so I am thinking it is an issue with composite video and composite sync as the VGA uses the separate horizontal and vertical sync signals.
 

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citrus3000psi

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Looks like its somehow being stuck in VGA mode? Would explain why composite doesn't work and why RGB is showing doubled pixel data.
 

Ergot

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I didn't look at it that way (duh). So VGA select (pin 6) on the AV out socket is somehow always connected to ground even when another output cable is used?
 
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citrus3000psi

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Yeah, I would pop open the case and probe with a multimeter.
 

Ergot

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The VGA select pin isn't connected to ground, unless the grounding happens when the console is receiving power?
 

Ergot

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