Sega Nomad /w new lcd has interference?

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ironnick23
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Sega Nomad /w new lcd has interference?

Post by ironnick23 »

I recently purchased a pre modded Sega Nomad. The original screen was replaced with a newer lcd. Issues im having with the screen are an occasional white flickering, and a noticeable sort of static interference on the screen. It shows up as sort of a rolling diagonal lines that even show up when I hook it up to a tv using its av out.

I took it apart, replaced and resoldered the wires and made sure there was no short circuits. One thing I do notice is when I touch the copper ribbon inside that was used to protect the original screens ribbon cable, the diagonal lines disappear although the image still has some sort of electrical interference.

Im wondering what other kind of things I could try to resolve this. Any help would be greatly appreciated.
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Hobie-wan
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Re: Sega Nomad /w new lcd has interference?

Post by Hobie-wan »

Maybe there's a ground that isn't hooked up and touching it makes you ground and helps? Was some shielding left out to accommodate the new screen? I don't own a Nomad and haven't poked in one, so just tossing out ideas.
ironnick23
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Re: Sega Nomad /w new lcd has interference?

Post by ironnick23 »

i will investigate this. there are four wires soldered to the nomad motherboard. two are grounds, one is for power, and another for video. typically in the tutorials I've seen, the two grounds meet on the lcd end, but in mine all the wires plug in via a 4 pin clip on the lcd board.
ironnick23
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Re: Sega Nomad /w new lcd has interference?

Post by ironnick23 »

so i joined the two grounds and it definitely made a difference in the static. still there, but much more subtle than before. the same static also used to show up when i plugged in into a tv, and now the image comes out real clean. thanks for the suggestion!
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Hobie-wan
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Re: Sega Nomad /w new lcd has interference?

Post by Hobie-wan »

Cool, glad you got it cleaned up a bit. :)
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Jmustang1968
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Re: Sega Nomad /w new lcd has interference?

Post by Jmustang1968 »

I plan on getting this and the battery mod done to my nomad soon
ironnick23
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Re: Sega Nomad /w new lcd has interference?

Post by ironnick23 »

I definitely recommend it.
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