Hi, i was wondering if anyone might be able to help a newbie with VGA boxes. I have a proxima ovation 810 panel and a nobo2500d projector. It works fine when i plug it into my computer but ideally i want to plug my dvd player into it. I have already tried using a scart sync connector which stated that it was only suitable for 15.6kHz horizontal scan rates. The panel went black and flickered intermittently. I have come to the conclusion that the panel must have a different scan rate. I have searched everywhere but i cannot find out what the scan rate is. The instruction manual i have is in french which doesn't really help either. Since i'm going to have to order a VGA box online, I don't want to buy one which won't work as it will be difficult to return. Can anyone just tell me the key features i should look out for? Is this one suitable?
http://www.consoleplus.co.uk/product_info.php?products_id=583
Thanks for your help.
Arnold_the_cat
http://www.consoleplus.co.uk/product_info.php?products_id=583
Thanks for your help.
Arnold_the_cat
scan converter
Yes, you are correct: Your video sources are scanning each line at about 15 Khz, and your LCD can only handle VGA-type input with a >30 KHz horizontal scan rate. The converter you cited looks pretty good. Features I look for are composite video and S-video input, output at the native resolution of the LCD panel I wanted to drive, and computer VGA signal pass-through. The converter you cited has all of these.
One thing to consider: Does it handle input from your actual video devices? In the US, the standard composite video is NTSC format interleaved 30 frames/second. In other parts of the world, the composite and S-video format may be PAL or SECAM, (or ?). Make sure the converter you buy can accept the format your source devices supply! (And always use the S-video input, if you can.)
Yes, you are correct: Your video sources are scanning each line at about 15 Khz, and your LCD can only handle VGA-type input with a >30 KHz horizontal scan rate. The converter you cited looks pretty good. Features I look for are composite video and S-video input, output at the native resolution of the LCD panel I wanted to drive, and computer VGA signal pass-through. The converter you cited has all of these.
One thing to consider: Does it handle input from your actual video devices? In the US, the standard composite video is NTSC format interleaved 30 frames/second. In other parts of the world, the composite and S-video format may be PAL or SECAM, (or ?). Make sure the converter you buy can accept the format your source devices supply! (And always use the S-video input, if you can.)
Hi,
I'd like one of these too BUT im concerned that the 640 resolution (which I need) only applies to 60hz (ie US) video/tv ?
Is this correct ?
All I want is rca in --> vga @ 640x480 out.
Thanks.
I'd like one of these too BUT im concerned that the 640 resolution (which I need) only applies to 60hz (ie US) video/tv ?
Is this correct ?
All I want is rca in --> vga @ 640x480 out.
Thanks.
scan converter
I think that the VGA verticle refresh rates are the same everywhere in the world. Or more accurately, they are in the range of 60 Hz to 85 Hz, depending on the horizontal line rate and the number of lines. (for multisynch monitors) The scan converter I have can be programmed to output 60 Hz, 75 Hz, or 85 Hz.
I think the thing you DO need to check before buying is if a scan converter accepts the PAL, SECAM, or NTSC composite video format used in your country. I've seen some ads that mention the different formats and auto-recognition capability. Do not buy one from the US without this, if you use PAL format video devices in England.
I think that the VGA verticle refresh rates are the same everywhere in the world. Or more accurately, they are in the range of 60 Hz to 85 Hz, depending on the horizontal line rate and the number of lines. (for multisynch monitors) The scan converter I have can be programmed to output 60 Hz, 75 Hz, or 85 Hz.
I think the thing you DO need to check before buying is if a scan converter accepts the PAL, SECAM, or NTSC composite video format used in your country. I've seen some ads that mention the different formats and auto-recognition capability. Do not buy one from the US without this, if you use PAL format video devices in England.
Hi Guy,
I was concerned that the unit can only generate 640 if the INPUT is 60hz? If im explaining that correctly?
Thanks for helping! 😉
I was concerned that the unit can only generate 640 if the INPUT is 60hz? If im explaining that correctly?
Thanks for helping! 😉
scan converters
Maybe some very cheap old units could only generate 640 by 480 at 60 Hz, and only from 60 Hz NTSC input, by simple line doubling. But I think the latest converters are much better now. If you buy a converter that can accept PAL input (50 Hz), it should be able to output at 640 by 480, 800 by 600, or 1024 by 768, at least. The output vertical refresh frequency will be at least 60 Hz, and may be programmable to run higher.
From your user icon, it looks like you are in England, so you need to find a PAL-to-VGA converter. Try searching the web for:
"video to VGA" converter PAL "add to cart"
You should find many converters that would work. Don't make the mistake of buying a "VGA to video" converter!
Maybe some very cheap old units could only generate 640 by 480 at 60 Hz, and only from 60 Hz NTSC input, by simple line doubling. But I think the latest converters are much better now. If you buy a converter that can accept PAL input (50 Hz), it should be able to output at 640 by 480, 800 by 600, or 1024 by 768, at least. The output vertical refresh frequency will be at least 60 Hz, and may be programmable to run higher.
From your user icon, it looks like you are in England, so you need to find a PAL-to-VGA converter. Try searching the web for:
"video to VGA" converter PAL "add to cart"
You should find many converters that would work. Don't make the mistake of buying a "VGA to video" converter!
Thanks for the replies
Thanks for the replies. I assumed I'd get an e-mail when a reply was posted and waited for ages. Unfortuneatly i was watching the wrong e-mail account! I bought the vga box that i posted a link too earlier. The box is brilliant and works fine. It did require plugging into my pc monitor first to set the resolution and the refresh rate but after that it has been good. I'm trying to adjust the contrast and brightness on it too get the best out of my poor ohp. Thanks again.
Arnold
Thanks for the replies. I assumed I'd get an e-mail when a reply was posted and waited for ages. Unfortuneatly i was watching the wrong e-mail account! I bought the vga box that i posted a link too earlier. The box is brilliant and works fine. It did require plugging into my pc monitor first to set the resolution and the refresh rate but after that it has been good. I'm trying to adjust the contrast and brightness on it too get the best out of my poor ohp. Thanks again.
Arnold
pricey but good.
Try out Jatons X-Media 5.1 Dreambox. It has tons of options and good de-interlacing quality if you have regular cable. As well as several resolutions and refresh rates. I had the regular Dreambox and was pleased with it.
http://store.anvshopper.net/jax51dr.html
Try out Jatons X-Media 5.1 Dreambox. It has tons of options and good de-interlacing quality if you have regular cable. As well as several resolutions and refresh rates. I had the regular Dreambox and was pleased with it.
http://store.anvshopper.net/jax51dr.html
Thats great arnold, have you tried it with Sky or a digi receiver too.
Can you set it to 640 x 480 ? It would really help if i knew that, thanks.
Can you set it to 640 x 480 ? It would really help if i knew that, thanks.
Magic XGA box
I've been using the box with my proxima ovation 810. It only has a maximum resolution of 640x480. There is a button on the top of the vga box which brings up a menu. In the menu you can alter a whole load of things such as brightness, contrast, colour, sharpness, resolution and frequency. I had to plug the box into my pc monitor first to set the box to 640x480 cos it came preset to the maximum resolution. After the resolution was set it worked fine. There are two frequency settings 60Hz and 72Hz. I have been watching cable on my projector via my NTL set top box which has a composite out so i assume you can do the same with a sky box.
I've been using the box with my proxima ovation 810. It only has a maximum resolution of 640x480. There is a button on the top of the vga box which brings up a menu. In the menu you can alter a whole load of things such as brightness, contrast, colour, sharpness, resolution and frequency. I had to plug the box into my pc monitor first to set the box to 640x480 cos it came preset to the maximum resolution. After the resolution was set it worked fine. There are two frequency settings 60Hz and 72Hz. I have been watching cable on my projector via my NTL set top box which has a composite out so i assume you can do the same with a sky box.
have you ever considered putting a tv tuner card into your computer and using DScaler software to scale and detinterlace the video? I use an MSI TV @nywhere TV tuner, and I get excellent quality from NTSC or PAL. In svideo, if I plug in my dvd player, its almost (if not same) as good as using a Dvd drive.
I have a tv tuner and its great but i dont want to have to use the pc everytime i wanna project something. Direct dvd to lcd would be great.
thanks arnold!
thanks arnold!
NTL and 820 panel
Hi, I am thinking of doing the same as what you mentioned about a feed from my NTL cable box into my 820 panel and then projected onto a large screen. My only trouble so far, is I can't get the entire image onto the LCD panel. If I use a scart to rca connector and input the signal on the video in, I get most of the picture but not all, if I go via scart to s-vhs I get a almost a compelte picture but in black & white and grainy... can you send a fresh link of the vga box you are talking about, as this sounds like a solution... thanks...
Hi, I am thinking of doing the same as what you mentioned about a feed from my NTL cable box into my 820 panel and then projected onto a large screen. My only trouble so far, is I can't get the entire image onto the LCD panel. If I use a scart to rca connector and input the signal on the video in, I get most of the picture but not all, if I go via scart to s-vhs I get a almost a compelte picture but in black & white and grainy... can you send a fresh link of the vga box you are talking about, as this sounds like a solution... thanks...
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