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Atari 2600 color artifacts on 7800 w/ composite mod


shear_xear

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On 10/17/2019 at 10:35 AM, shear_xear said:

Hi everyone.  I have an Atari 7800 that I added composite AV to, and now the 2600 games have weird color bars that show up.  Pitfall is probably the worst.  Any ideaswhat might be causing this?   Thanks

0CF841E0-53CE-4E7C-9750-B1A7C1F9F44F.jpeg

Signal reflection, probably from a bad cable or the output impedance isn’t right. You can try wrapping the output cable around a ferrite core a few times which can help. 

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