What kind of video card are you using anyways, the LCD might not be freaking out it might be the video card instead. Take a look into either the Radeon 7500, 8500, or the 9000 . These are by far the best video cards for what people around here are trying to accomplish.
Word of advice though is to stay away from the AIW and instead get a winfastTVXP capture card for your tv viewing.
Lifter how much are those circular lines annoying you? I made another thread but it has seemingly went into the pit now though
http://www.diyaudio.com/forums/showthread.php?s=&threadid=10529
Have you seen some of the HDTV's playing dvd's? How would you copare this solution to those?
Word of advice though is to stay away from the AIW and instead get a winfastTVXP capture card for your tv viewing.
Lifter how much are those circular lines annoying you? I made another thread but it has seemingly went into the pit now though
http://www.diyaudio.com/forums/showthread.php?s=&threadid=10529
Have you seen some of the HDTV's playing dvd's? How would you copare this solution to those?
Water1, post a link to the thread and I'll look at it.
AJ, I can't really comment on the lines yet until I get a new fresnel (mine is warped). I'm going to try different placement distances from the LCD to see if that helps. My friend has a $3000 Sony rear-projection HDTV. You can't really compare LCD projectors to CRT. There usually is no comparison. His looks much better. Nicer black levels, etc. But he has no PC input whatsoever on his TV, the size is like 50" (verses my 100"), but as far as resolution quality of a DVD, it's exactly the same. DVD's are only 420p.
AJ, I can't really comment on the lines yet until I get a new fresnel (mine is warped). I'm going to try different placement distances from the LCD to see if that helps. My friend has a $3000 Sony rear-projection HDTV. You can't really compare LCD projectors to CRT. There usually is no comparison. His looks much better. Nicer black levels, etc. But he has no PC input whatsoever on his TV, the size is like 50" (verses my 100"), but as far as resolution quality of a DVD, it's exactly the same. DVD's are only 420p.
Hey water, are you talking about that benQ moniter? It's the same exact panel as the NEC 1545. So get whatever you can get for the cheapest.
Hi Lifter,
Here's the thread, The second pic give's a real good look at the panel taken apart.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=9146
It' an I-O DATA A15v LCD monitor.
Take a Look at the connection's and tell me what you think.
Are there fewer connection's than the NEC to worry about ?
Or do they look about the same?
Thank's for the help....
Here's the thread, The second pic give's a real good look at the panel taken apart.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=9146
It' an I-O DATA A15v LCD monitor.
Take a Look at the connection's and tell me what you think.
Are there fewer connection's than the NEC to worry about ?
Or do they look about the same?
Thank's for the help....
And lifter one more thing.
You see how part of his panel got #@^*-up a little on the right side.
I see with your NEC 1545v there was one spot on the Horz or Vert. PCB bord's that you had to put a ground strip.
Do you think MbayAQ missed a ground somewhere on that long Horz. PCB bord that did that to the right side of his LCD ?
You see how part of his panel got #@^*-up a little on the right side.
I see with your NEC 1545v there was one spot on the Horz or Vert. PCB bord's that you had to put a ground strip.
Do you think MbayAQ missed a ground somewhere on that long Horz. PCB bord that did that to the right side of his LCD ?
I've had my eye on that I-O data LCD monitor for a while now. I looked around their web site, and it looks like they will sell JUST the LCD screen, with everything you need instead of a full monitor. Only problem is, you would have to buy in quanities to get that. But you could probably request a sample unit from them.
I haven't seen that I-O Data LCD panel on eBay even once yet. I like this NEC one though, they go for fairly cheap on ebay, and there seems to be an abundance of them:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3400198255&category=3698
I haven't seen that I-O Data LCD panel on eBay even once yet. I like this NEC one though, they go for fairly cheap on ebay, and there seems to be an abundance of them:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3400198255&category=3698
Ok, yeah that monitor looks easy to take apart. I remember that thread now. He's f'ed it up and some V lines aren't showing. I don't think that's a grounding problem. The thing is just to be VERY careful. It's not hard, it just takes patience. You'd think that those ribbons connecting the V and H boards are sturdy enough to support it's own weight, but they're not. Use foam, bubble wrap, or whatever when you move the panel point A to point B.
Basically, I secured a layer of sheet metal underneath the 2 boards (w/ some bubble wrap and electrical tape to insulate them from the metal), as well as underneath the controller and the ribbon cables connecting them. All that was grounded, and I think that was more than enough to shield it. Those connection points on the boards are not important. Mine works with or without them connected and grounded.
Basically, when you take the LCD apart, it's quite awkward to move the thing w/o the V and H boards dangling. Just make sure they wrapped up. Treat them like the ribbon cables are made out of tissue paper and you should be alright.
Basically, I secured a layer of sheet metal underneath the 2 boards (w/ some bubble wrap and electrical tape to insulate them from the metal), as well as underneath the controller and the ribbon cables connecting them. All that was grounded, and I think that was more than enough to shield it. Those connection points on the boards are not important. Mine works with or without them connected and grounded.
Basically, when you take the LCD apart, it's quite awkward to move the thing w/o the V and H boards dangling. Just make sure they wrapped up. Treat them like the ribbon cables are made out of tissue paper and you should be alright.
^^^^
See those semi-ring shaped hotspots just right of the center of the image? That's from having a warped fresnel, which I will be replacing w/ the Elmo fresnel once I get it (I.S. took a week to send me the shipping costs). That is not the regular "ring" effect I was talking about in another thread. That effect is WAY too unnoticable for a camera to pick up. BTW, my camera is a crappy 640x480, so all those compression artifacts you see are purley from the camera. In real life it looks much better.
See those semi-ring shaped hotspots just right of the center of the image? That's from having a warped fresnel, which I will be replacing w/ the Elmo fresnel once I get it (I.S. took a week to send me the shipping costs). That is not the regular "ring" effect I was talking about in another thread. That effect is WAY too unnoticable for a camera to pick up. BTW, my camera is a crappy 640x480, so all those compression artifacts you see are purley from the camera. In real life it looks much better.
Nice, Look's really good Lifter.
I have to get started buying and building one soon....
And pic's. are worth a 1000 word's. I like it when people post pic's
it help's a lot...Thank's Lifter
I have to get started buying and building one soon....
And pic's. are worth a 1000 word's. I like it when people post pic's
it help's a lot...Thank's Lifter
Lifter,
What are you using to ground the H and V boards, as I have heard this could lead to problems if not done properly, jsut looking for some ideas before I create my own frankenstien machine.
Rekr
What are you using to ground the H and V boards, as I have heard this could lead to problems if not done properly, jsut looking for some ideas before I create my own frankenstien machine.
Rekr
As you can see, I'm using.... nothing. It works great. But I have aluminum plates underneath both boards, so it's well sheilded. Another thing I did was toss the monitor's DC inverter in the trash. That thing is huge and way too powerful. Since I don't have a backlight, I don't need it. I just used a regular DC inverter that's built into the plug (like most electronics use). I have a tiny DC to DC inverter that gives me 5 volts (for the panel) and 12 volts (for the fans).
As far as the swirly lines go that I was complaining about, I have a theory on that. I'm thinking that a panel w/ a better viewing angle will help with that a lot. Not too sure though.
As far as the swirly lines go that I was complaining about, I have a theory on that. I'm thinking that a panel w/ a better viewing angle will help with that a lot. Not too sure though.
Hey Lifter,
you've probably said this and I'm just overlooking it, but where are you getting your fresnel from? What would be the cheapest place for a big good quality tho. I looked at my fresnel and it has a scratch and is plastic and is two lenses stuck together 🙁 So I'm looking for a high quality one.
Also, The DC inverter you got, (clever btw), how much was it? And could I get one that powers the lights also? Just so that I can have a more professional looking (I'm prob gonna build my own enclosure) projector with only one power cable.
Everyone,
I've had my plan set for an older projection panel but now will use an lcd monitor, I assume they let in more light than the old panels so what is a good lumen (not ansi) ? I was going to go 35-40,000 lumens. Is this now too high?
Thanks
you've probably said this and I'm just overlooking it, but where are you getting your fresnel from? What would be the cheapest place for a big good quality tho. I looked at my fresnel and it has a scratch and is plastic and is two lenses stuck together 🙁 So I'm looking for a high quality one.
Also, The DC inverter you got, (clever btw), how much was it? And could I get one that powers the lights also? Just so that I can have a more professional looking (I'm prob gonna build my own enclosure) projector with only one power cable.
Everyone,
I've had my plan set for an older projection panel but now will use an lcd monitor, I assume they let in more light than the old panels so what is a good lumen (not ansi) ? I was going to go 35-40,000 lumens. Is this now too high?
Thanks
I bought an Elmo SD 305 on ebay for $100, and I'm going to use the fresnel for that. According to cruser, it's slightly larger, and every bit will help at this point. Negative Design posted a link in this thread to by a 12.5x12.5" fresnel for $30. That's a good price. I bought the Elmo because it's a steal at that price, given the fact that it has a 575W MH lamp in it, I can make a second projector some day with it.
There's alot of talk about this NEC 1545V, because its easy to take apart. Does anyone know if this is this true of all NEC LCD screens, or just the 1545V?
My reasoning is because I have found quite a few NEC LCD's on eBay (in Canada), but no 1545v's
My reasoning is because I have found quite a few NEC LCD's on eBay (in Canada), but no 1545v's
Lifter & Cruser:
are you both using the NEC 1545v LCD to make your projector?
so do you or anyone here has experience or seen this LCD in action?
I'd like to know if I use a Video-to-VGA converter(to avoid use of a PC), how will the picture look?
I found the user manual http://www.necmitsubishi.com/corpus/V/O/LCD1545V_manual_1002.pdf and it says the NATIVE resolution is 1024x768.
Does that mean that everytime I turn it on(thru converter) to watch movies, it will be in this resolution?
And what about color depth? Is that 16-bit at default?
One more thing: you can adjust the size of the viewing area to accomodate a smaller frensel lens.
Too many questions, I know.
Thanks in advance.
Yifan
are you both using the NEC 1545v LCD to make your projector?
so do you or anyone here has experience or seen this LCD in action?
I'd like to know if I use a Video-to-VGA converter(to avoid use of a PC), how will the picture look?
I found the user manual http://www.necmitsubishi.com/corpus/V/O/LCD1545V_manual_1002.pdf and it says the NATIVE resolution is 1024x768.
Does that mean that everytime I turn it on(thru converter) to watch movies, it will be in this resolution?
And what about color depth? Is that 16-bit at default?
One more thing: you can adjust the size of the viewing area to accomodate a smaller frensel lens.
Too many questions, I know.
Thanks in advance.
Yifan
Psionic, NEC does not make LCD screens, they just put together other people's parts and slap their name on it. The NEC 1545 uses an LG Philips LCD. There is one model higher (NEC 1555, I think but not sure) that I believe (don't hold me to this) has the same type of Philips screen, but w/ a higher contrast ratio.
So the short answer, no. I'm sure there are NEC moniters that use non-Philips LCDs. It is possible that all LG Philips LCDs can be taken apart easily like this, but I doubt it.
Supernatural, all the specs are in the link you posted. 1024x768 native is right. 24-bit color. LCD's are generally meant to run at their native resolution. Anything higher or lower can hurt performance. The horizontal size can be adjusted a little bit, but the vertical cannot. This is common among most LCD's. I'm not sure why.
So the short answer, no. I'm sure there are NEC moniters that use non-Philips LCDs. It is possible that all LG Philips LCDs can be taken apart easily like this, but I doubt it.
Supernatural, all the specs are in the link you posted. 1024x768 native is right. 24-bit color. LCD's are generally meant to run at their native resolution. Anything higher or lower can hurt performance. The horizontal size can be adjusted a little bit, but the vertical cannot. This is common among most LCD's. I'm not sure why.
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