Okay, so atm my theory about the curbside Trinitron is... complicated? It appears I'm not the first person whose been inside of it... well, maybe, but if so, I really don't know if they just opened it then got confused/spooked, or if they attempted to adjust anything (would be nice to believe that they messed with SCREEN, but made it darker instead of brightere, but I doubt it lol).

Here's what I do have to go on: on the RF input (not that I have anything connected, so just a dead channel), it's really dim, but if I turn the lights off, I can tell that there's snow, so it's not just pure black. The channel is not nearly full brightness, but it's bright and clear enough to see in a lit room.

On the AV in, the screen is basically black and depending what I have connected, I either get occasional red points, or right now, I have a LaserDisc of Black Rain playing, and the Paramount logo card with the mountain and stars is actually visible (but all red). If I leave it playing, sometimes it's basically all black for minutes, and other times I can make out a shape or skyline, but always in red. It's consisteent though. The same piece of content displays the same red dots/edges/figures/Paramount title card. It's not like it's intermittently all black or displaying a red image, it's more like it only displays the red past a threshold of brightness.

What's interesting is that in TV mode, the green OSD is the only truly visible thing, and then in AV mode, I'm getting red. No green in the image. Which leads me to believe that there's something up with either the jungle IC, or jungle IC adjacent passive components.

I'm not going to just assume that means there's no issue with the tube, but the fact that I'm getting green OSD, but no green in the image, is telling. Blue is... another thing. Idk yet, lol.

It is entirely possible I'm in over my head, but I wanted to at least figure out if the issue could conceivably on the board and not in the tube before I decided to potentially spend any amount of money on this. ...

#crt #crtrepair #trinitron

I wonder if modern tech could correctly illuminate vertical #RGB phosphor stripes (as in the #Trinitron) on a #CRT with a single electron gun and no shadow mask.

This was a Hard Problem™ when color TV was first being invented. The shadow mask and aperture grille were invented to solve the problem by stopping the beams from hitting the wrong color.

But now we have gigahertz-speed electronics. Could those modulate the beam with precise enough timing to not need a shadow mask or aperture grille?

Is there some secret technique for photographing CRTs without having to race the beam?

Anyway, my Trini has a colour blotch.

And bad geometry (slight curve on top)

And it's off-centre.

I think the blotch can probably be fixed by an external degausser (TV's built-in degausser doesn't fix it), but what about the geometry and placement problems?

I see people practically giving away Trinis here. Not sure if I should try fixing mine or just getting a "new" one.

#CRT #Trinitron #Repair

this week's thrifting find: a 1987 cbs fox home video theatrical cut of Aliens on VHS

watching it exactly the way James Cameron intended it: pan and scan, monaural audio, on a 9-inch trini

#movies #trinitron #sony #vhs

i have no idea how well known this is, but i never see people talk about it.

when Blade Runner: The Final Cut was released in 2007, there were several different dvd/blu-ray/hd-dvd editions. there was a single-disc (film-only) version, a 2-disc, and a massive 5-disc edition.

the 2-disc, and five-disc editions both include an incredible 3.5h making-of documentary called Dangerous Days: Making Blade Runner.

it's not easy to find a streamable copy online unfortunately. there's a low quality version with spanish subs burned in here, at least:
https://archive.org/download/dangerous.-days.-making.-blade.-runner./Dangerous.Days.Making.Blade.Runner..mp4

#film #bladeRunner #movies #documentary #dvd #physicalMedia #crt #trinitron

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