From what I hear, some screens can be "fixed" for specific console use by making a video amplifier. My friend Lorne (Metallica Man X from the benhecks) successfully used an unsuitable screen in a Nomad by making an amp. I Didn't really ask him much about it during the bustle of MGC where he mentioned it, but I've been trying to get him to do a write up for my site which will hopefully happen one day. I wouldn't even know where to begin on something like this, where to try and find video frequencies, what to use and how, but I've been asking around and it's worth a try if you know more about this sort of thing than me (which is literally nothing).
Post by lovablechevy on Jun 6, 2015 15:54:40 GMT -6
yeah, i'm in the middle of researching how to figure out the specific hz of systems, and how to boost it to what these screens need. seems from that article, the newer lcd screens need a set 50 or 60 hz, and the majority of older consoles don't actually use exactly 50 or 60. there are multimeters that can read hz, i need to get one, and then research on mods to boost the hz ever so slightly.
hopefully, we can be on our way to figuring out how to get around this issue.
Post by lovablechevy on Jun 7, 2015 8:15:26 GMT -6
looking over my different 3.5" screens, the biggest difference i am seeing is the crystal value. the 3.5" screen that works with all consoles has a crystal rated 12. the scrolling one, has a crystal rated 24. i am tempted to swap and see what happens...
Post by lovablechevy on Jun 7, 2015 9:11:29 GMT -6
ok, that didn't work. the screen didn't turn on at all. i do want to mess around with this crystal idea, tho. esp as the article above stated that ppl had been trying to tweak the timing crystals for the neo geo. i'm thinking maybe i need it to be slightly higher. so, the one i currently have is 24.000. i'd love to try just a 25.000, esp as the scroll is so slow. i don't seem to have one on hand, tho, or i don't know how to properly read some of them i have laying about... lol
Following discussion in the shoutbox, I began wondering if outputting RGB from an N64, then converting that signal to composite would allow it to work with these screens. That train of thought led me to discovering the AD724 RGB-to-composite/s-video microchip.
Of course, if this works, it would only work for systems that can output RGB. The chip has the ability to output NTSC or PAL, and since the screens can supposedly detect which signal it's being fed, it shouldn't matter if you've accidentally selected the wrong format.
I might look into getting one of these and trying it out. Would be nice if these produce a signal closer to the correct format than the actual consoles do.
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Apr 10, 2019 20:26:24 GMT -6