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LHE 7800 S-vid board: Interference w/2600 games


ApolloBoy

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Has anyone noticed an interference issue with the LHE 7800 board while playing 2600 games? It seems to be real noticeable on dark backgrounds and it's almost like playing through RF. This isn't the TIA9 issue, I've already fixed that with a switch. I've also used shielded wire for the input wires going to the LHE board but that doesn't fix it. Any ideas?

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Here's level 1-3 of Princess Rescue, which has a dark blue background and really shows off the interference. The first pic is a little darker than how it actually appears as I had to turn down the brightness a bit on my monitor. The second is a closeup of the interference patterns:

 

EDIT: Disconnecting the MARIA chroma has no effect.

 

DSCN0969_zps0ac55c58.jpg

DSCN0970_zpse04b2703.jpg

Edited by ApolloBoy
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