CurtPalme.com Home Theater Forum

[Heywood Jablome]

[convict4ever]

Thanks everyone. I know I keep saying thanks but this is so helpful. The only thing that I need an answer to is so that I may start my purchases is, what statistics or info do you need to see if this will do 1080P? I want a blu ray player. I dont want to purchase it if the 1080P wont work. I mean i would have to buy the HD Fury 2 and all the accesories just to see if it will work? Doesnt seem to logical or finacially smart. Let me know what else you need to aid me with the question of, will my PJ play 1080P?

[Heywood Jablome]

1080p may WORK, but it likely won't "resolve." The difference is the electronics versus the optics: Being MultiSync (yes, just like the NEC brand name for computer monitors) the electronics may be able to latch on ("sync") to a signal of such a high frequency BUT when the projector tries to draw the image the optical restrictions of a 7" machine will prevent it from displaying 1080p properly.

CRT monitors and TVs have pixels, which are actually three dots in a cluster (Red. Green, & Blue.) An electron beam lights up one of these dots to make that pizel a given color.
A CRT projector has no pixels... rather they just draw lines on the phosphor with the electron beam. They are limited in resolving ability by the area of the phosphor on the tube face and the 'spot size' of the electron beam.
If a 7" tube has, say, 5" of usable height then the e-beam spot needs to be 5/1080 (.0046") diameter to properly resolve. This is a tall order for the electronic focus of a CRT PJ.
What will happen is the eFocus will be able to create a spot of, say, .007 inches. While the electronics are giving you 1080p, the optics are suffering 'overlap' where the lines are literally drawn on top of each other. The result will be poor focus of the finished image.

1080i is still 1080 vertical lines of resolution, but are separated into alternate frames of 540 which makes the strain on the electronics less and improves the resolving ability two ways: Even separated by 1/60th of a second your eye will detect the difference between the frames and perceive greater sharpness AND you may achieve a smaller spot size at 1080i than 1080p due to less electronics strain.


Don't write off a free CRT PJ because of a lack of 1080p: It'll still run rings around any digital under $5000 when running 1080i or 720p. Do a quick setup on the floor with the component inputs and HD cable as a source and your decision will be made. Really!

[Nashou66]

I agree with Heywood, 1080i is just fine and 720p is also and should be used for any sporting event you watch, so you will have two memeories for each. Most PJ have memry blocks for different resolutions so your not stuck with one. So if you find a blu ray player just get it and you can output 1080i from component to your PJ right away, same as cable box or sat box. SD DVD you could upscale to 720 like most do but if you get a vieo processor i fing doubling the native 480i to 960p looks best for me. it should do 1080p with a H frequency of 15-100 and V frequency or 15-150 and the same resolution as the onix 8 so i think it can handle it. Id get one of the LG multiblue players Either the BH100 or BH200 if i were Con4e, nice way to cover all the basis. and if you like euro movies it can be made region free.

Athanasios

[CRT_Ben]

Count me another vote for 1080i...don't buy the marketing hype of 1080p. 1080i gives you just as much detail and you're not losing a thing, believe me. The only difference is 1080p refreshes at 60Hz, and 1080i at 30Hz, but with films at 24Hz, 1080i is more than sufficient and you're still getting every last pixel up on screen.

[Nashou66]

[Heywood Jablome]

There's a neat graphic in the Reality912 marketing glossy that clearly demonstrates what i was trying to type regarding overlapping pixels:
http://www.curtpalme.com/docs/BarcoReality912_Brochure.pdf

Page 1, bottom right-hand corner, under the heading Very High Resolution Images. See the 7", 9", and 12" tube faces? That's the overlapping spot I was referring to.

And, no, you should not hold out hopes of finding a 912. There were probably only 50 ever made (WAG estimate there.) Special tubes and optics that are effectively irreplaceable.

[convict4ever]

That 912 is a serious PJ. I already own an upscaling Samsung HD-841 DVD player that outputs 1080I. I just wanted to have blu ray as I have seen that player. Its an awesome pic on an HD TV. Now i have never seen a PJ in action of any sorts with any output. Thats why I ask what do i need to purchase in order for me to have the best pic at a resonable price. Make a list, maybe not ur dream list, but a list that is way better than entry level. I did price that Lumagen processor. WOW is that expensive. I was thinking about using my PC to make a HTPC. I read those forums and get lost. I know alot about computers but they just talk about the hardware, etc. Can i make my PC perform with programs if needed to be purchased run my PJ? Do I need a better video card? Can you buy programs that give what an external processor can do? I.e the Lumagen. If you know of a link please copy here so I may reference it. I have done so much research, I'm gettin sensory overload. You all here on these forums help me simplify things. So lay it down for me. If you were me, what do i need to get a HTPC running. I have the follwing:
------ASUS NCT-D motherboard
------2- Crucial dual channel ECC registered 1megs of RAM for a total of 2megs
------2-250 GIG Western Digital SATA hardrives
------Gforce 7600GT Overclocked Video card
------1-Intel XEON 3.4 ghz processor, motherboard is capable of holding 2 of these bad boys
------Microsoft Windows XP w/service pack 3
------Microsoft Elite Bluetooth mouse and keyboard
------Sony DVD drive
------Thermaltake Armor aluminum case

I have acquired a 50 Meter spool of Oyaide FTVS-510 pure silver coax that I will have custom HD cables made out of with BNC connectors to RCA if I cant get an HDMI cable to work with my PJ. Ok, I think I'm done talking here and now hope to get some responses as to the setup of my PJ. Also what is the recommended screen type? You no by now I want HD 16:9 quality.

[Nashou66]

Lumagens are expensive new but can be found used if you are patient and search e-bay and the other for sale video places or craigs list. I have seen the HDP sell for about 500 at the lowest, not bad for a 1500 scaler. your PJ cant use HDMI unless you get a box that converts it. I dont use a HTPC but what you have should work, but then how are you going to add HD sattelite and A blu ray player unless you get some sort of input card or get a blu ray drive. You'll need a VGA/RGB to RGBHV break out cable to go from your PC video card to the PJ. I still say a scaler is the way to go, sure they are expensive but i may start an argument here but they are more tuned for CRT PJ.s than HTPC's I had a fairly good PC similar to your hooked up and couldt get used to it or control everything steadily like with my Lumagen. But like I said others are more comfortable using a PC. keep looking for one and fr now use a PC i guess.

Athanasios

[Heywood Jablome]

I'm still in the camp for pointing the thing at a wall and doing a setup. You'll need the practice and the experience will answer a lot of your questions.
Since that thing has component in, spend seven bucks at Radio Shack for BNC to RCA adapters and set the PJ up with 525p out of that Samsung HD-841. (There may be a remote hack to unlock HD component on that sammy, there were many hacks around when those scaling-limited players came out.)

[Nashou66]

True Haywood, you dont need a source to converge and do the focus. He should learn all this first.

Then he should look into what his source chain should be. There is a Lumagen Vision DVI on Videogon for about 450 i bet hell take 375. and you can get it to input 1080p and at least scale out 720p@72 which I think will be best for your 7 inch machine.

here is athread on a memeber who got it to work inputting 1080p:

https://www.curtpalme.com/forum_archived/viewtopic.php@t=10190.html

Athanasios

[ecrabb]

[Nashou66]

I was being sarcastic with the" you might as well stick with 480i" He has a 7 inch set not like your 8 inch, so 720p is most likely the best as it will give more light output having 720 lines on the screen instead of 540 with 1080i.

I agree that he should first hook up his dvd player and get familiar with the set before he searches for the other options, as I stated way back from the get go of this thread. My other suggestions are for down the road once he gets it set up and familiar with it. But the cleaning of it is first thing its too easy to 'just set it up quick" and then forget to clean it out nad a few days of watching movies and it over heats and blows something. especially with a set that is so rare as his, if something goes even curt might not be able to help, he has never seen one and said they maybe sold all of 4 or 5 of these.

But once again go to radio shack get some bnc/RCA adaptors and hook up your dvd player and start exploring your sets menu an features on any wall you can shoot it on.

Athanasios

[ecrabb]

Yep, clean it up and start playing!

For what it's worth, I ran 1080i exclusively on my good old 1271, and it was awesome - it blew people away when they saw it. Of course, it was soft enough that I couldn't see scan lines standing right at the screen, let alone from my chair. It was probably closer to resolve 960x540, but 1080i still looked awesome compared to 720p... so that's what I ran. I think because of he lackluster optical performance of the 1271/PT-whatever lenses, I think 1080i was sort of "oversampling" the optical system. This Toshiba with HD-145's may be much sharper, and 1080i scan lines may be plainly visible - or not.

SC

[macgyver655]

A funny story I have about this guy I knew. He bought a car from someone. The guy actually delivered it to his house. It was one of those cool looking but rare cars. So he went out a bought new chrome wheels and fancy tires, window tinting. Then being an amature body and paint guy, painted the car. Red yet, you know, the most expensive color.

After the paint was dry he wanted to take it to town to show off to his friends, only to find out the car had no reverse and only 1st gear, and slipped at that. So now he has all this time and money into a rare car that he cant find parts for, and even if he could find some parts, hes not a mechanic and doesn't know how to fix it himself. Also being rare he cant find anyone to fix it for him.

I guess he should of test driven it before spending all that time and money to make it what he wanted it to be.

Oh well, lesson learned.

[Nashou66]

[convict4ever]

WOW!!! my only problem is I have no where to set this beast up. I will definately clean it first. I take care of everything I own and to me it seems dirty. Some Caigs, a can of air, and some isopropyl alcohol should clean those boards up real nice. I will check the high voltage wires for cracks. Blow the fans out as well. any suggestions on a screen? I can only imagine the debates that will come from this question. Laugh out loud!!!

[Nashou66]

Screen size is up to how bright you want your picture and how much room you have for the screen and also the throw distance of the PJ in the room. here are some specs on the HD 144/145 the two lens are close in specs.
Screen are not cheap, so you can get a piece of wilson art designer white and use that, But one of the cheapest and a very good screen from what a few here have said is the hurley matt finish and super glow, If you get the lace and gromet type and make your own frame it is the least expensive , I just was quoted 400 bucks for 13 FOOT 2.35 screen. I think its a good price.

Athanasios

[macgyver655]

[convict4ever]

Cool! I will clean the PJ up as I have had no NO's as how I plan to clean it from the forum. I go into everything with confidence. I know this PJ wont do me wrong. LOL!!!