DIY Video Projector

[rmccoll]

I have hit pay dirt

Been a while since i posted, I have started to build my projector it's pretty small about 6 inches high and 8 inches long I found a compact flouresent bulb at wal-mart that puts out 2700 lumens this is more than enough since i'm using a 4 or 5 or 8.4 inch lcd sreen.

I have found away to extend the ribbon cable or sometimes called Flat Flexible Cable(FFC) this is a way to get the driver board out the way. There is this company named Molex that makes FFC connectors, now my lcd sreen from www.partsexpress.com can be used in my projector. You can ask for samples at www.molex.com or you ask www.mouser.com to order them for you.

For people who want to use a 8.4, 9.4 or 10.4 lcd screen from a laptop i found a website that sells vga controller boards for a number of Toshiba laptops all of the boards are $39.95 they dont give any specificatoins and I dont know if we can use them or not. They sell the lcd srceen to put they are High as hell you find these lcds on ebay or you take them from Toshiba satellite T1960cs, T1960, CS100 mostly the older models make sure it is a color screen tft.
www.impactcomputers.com

Check out http://www.averlogic.com/video_converter/AL251.html for a ntsc/pal to vga/lcd board

[SuperZoboo]

First of all, this is my first post on the forum and I'd like to say hi to all you DIY'ers.

Now, Krazzyed and I just spent 6 hours last night learning all we could about the LCD projector world and we are definitely ready to go ahead with project big screen. From a few of you guys out there we learned (and laughed) a lot. We're gonna go for the 10 inch LCD approach, maybe with an OHP or maybe with a layout similar to Undream's.

So, square one, the LCD: Anybody got a nice panel projector for sale out there? I'm thinking Nview Spectra C, Proxima Ovation 822, Sharp 1650 or 1750, and etc.

As soon as we get this project rolling we'll post pics and web address.

btw...how does the Nview Spectra C do for fast action? Does it blur any?

[daveb]

rmccoll,
Pay dirt indeed, by your description. I've been stonewalled by the ability to get a signal to the extracted LCD panel (and by the ribbon cable to move the driver board out of the way) for less that $500.

So your news is exciting. But I've visited the links you've included, and cannot find either the LCD controller for the panels, nor the FCC cable.

Can you be more specific in your links/part names/descriptions?

(I'm working with Dell screens, but ya never know)

Thanks,
dave.

[cowanrg]

Originally posted by SuperZoboo
First of all, this is my first post on the forum and I'd like to say hi to all you DIY'ers.

Now, Krazzyed and I just spent 6 hours last night learning all we could about the LCD projector world and we are definitely ready to go ahead with project big screen. From a few of you guys out there we learned (and laughed) a lot. We're gonna go for the 10 inch LCD approach, maybe with an OHP or maybe with a layout similar to Undream's.

So, square one, the LCD: Anybody got a nice panel projector for sale out there? I'm thinking Nview Spectra C, Proxima Ovation 822, Sharp 1650 or 1750, and etc.

As soon as we get this project rolling we'll post pics and web address.

btw...how does the Nview Spectra C do for fast action? Does it blur any?

Spectra C is my personal choice... GREAT entry level panel. NO motion blur, and ive watched lost in space, gladiator, um, probably about 50+ movies on my projector in the 3 months ive had it.

[biteon]

i got a bulb its a 400 watt high pressure sodium westing.......
light bulb about 10" long produces 55,000 lumens

i havent tryed it in the projector but i did hook it up and got it to lite up i was not not impressed at all
it gave out a green lite witch i think my f me up later plus most of all it didnt put out what i thought it would (comparing ratios to smaller bulb ive had"4500.lumens soft reader sh*tty bulb")

this is how i set it up

power to the core coil ballast through the igniter and the cap etc.
to a mogul socket witch has 4 settings low med high & off(this high med low might be my problem so im going to bypass that part and hook up direct unless more info say not to etc ) to the bulb

dude(s) it was like looking at a florecent light
it kinda hurts me inside for the cash i spent.

[cowanrg]

that sux? it was green and not that bright? i have read that orientation sometimes matters, AND, conditions matter... maybe its a bad bulb? 55K lumens will be insanely bright, and most likely hurt really bad... so, you would know if it was working.

also, some take a minute or two to warm up to full brightness.

[Undream]

wierd. First of all, high pressure sodium should give off a reddish color light, very warm. Even warmer than the average 4000K Metal Halide. Some would even consider HPS too warm colored, where it might cause inaccurate color reproduction on your projection screen.

Pretty much any high intensity discharge lamp should take between 5 and 15 minutes to warm up to its full brightness. Even my Metal Halide bulb starts off glowing a faint blue color, but after 10 minutes, it is very warm color.

[braxton]

This may be a dumb question, but I'll ask anyway...

Since FXL (82V 410W) and ENX lamps (82V 360W) are very similar, can a person buy a (cheaper) ohp rated at ~3000 lumens and simply use a FXL bulb in it (instead of the suggested ENX) to bring the lumens up to 4000 or so?

just curious

B.

[SuperZoboo]

Hey guys, Krazzyed and I just lost/won an auction on ebay for the nview spectra. we bid $125 and still didnt meet his reserve. in post-auction negotiations, what should we set as a fair price?

If this doesnt work out, we're going for another Nview or maybe a Sharp 1750/1650 like Undream. Anybody know a place to get a deal on one of these?

[contrapasta]

[QUOTE]Originally posted by rmccoll
[B]I have hit pay dirt


For people who want to use a 8.4, 9.4 or 10.4 lcd screen from a laptop i found a website that sells vga controller boards for a number of Toshiba laptops all of the boards are $39.95 they dont give any specificatoins and I dont know if we can use them or not. They sell the lcd srceen to put they are High as hell you find these lcds on ebay or you take them from Toshiba satellite T1960cs, T1960, CS100 mostly the older models make sure it is a color screen tft.
www.impactcomputers.com



Holy sh!$ that is a great find, there are many there, here is one http://www.impactcomputers.com/p000224960.html
Can anyone confirm that is what we need, and anyone have any ideas how to hook it up?? The Power supply req? It looks like we need to buy the contrast thing too...another $40, still at $80 a good deal though. I've got finals, so I won't really look into this till after thurs, but I think I know what I'm going to try this summer break!