Main > Monitor/Video Forum
WG D9200 and ArcadeVGA video card question?
AceTKK:
the 9200 is so popular because it can run standard res games at their native resolution, as well as displaying Windows programs in 640x480 or 800x600. Most arcade games ran on the arcade machines at 320x240, 300x240, 300x256, etc. What the ArcadeVGA card does is allow your computer to output those resolutions, so that the 9200 can display them properly (without any stretching/dithering). If you aren't using the low-res modes of the 9200 then it's not really worth owning one; a large computer monitor or television would be cheaper. The ArcadeVGA + arcade monitor (like the 9200) allows for the most authentic reproduction of actual arcade video available.
-Ace-
wpcmame:
--- Quote from: AceTKK on March 14, 2005, 12:03:03 pm ---If you aren't using the low-res modes of the 9200 then it's not really worth owning one; a large computer monitor or television would be cheaper.
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elvis:
--- Quote from: rockmes on March 14, 2005, 07:44:39 am ---Hey Elvis , if you live in Melbourne , there's a place called Zax that sell the D9200 27 inch for $895.00 AU
http://www.zax.com.au/amusementmachines.html
look under spare parts and you will find it listed and with the price.
Ciao
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Thanks for that. I've seen their site before, and the prices seem to have dropped a bit since last I checked. I'm in Brisbane however, so I wonder what postage will be like. I might give them a bell today and find out.
desmatic:
--- Quote from: wpcmame on March 14, 2005, 01:54:13 pm ---
--- Quote from: AceTKK on March 14, 2005, 12:03:03 pm ---If you aren't using the low-res modes of the 9200 then it's not really worth owning one; a large computer monitor or television would be cheaper. The ArcadeVGA + arcade monitor (like the 9200) allows for the most authentic reproduction of actual arcade video available.
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So your are saying that the phosphor on the picture tube works different depending on what frequency the graphic card feed the electronics with.
Sorry, but I don't buy that based on the following reasoning (if you find an error in the reasoning please let me know)
One line on the monitor is drawn by the electron beam. The color of the line is controlled by the intensity of the beam which is controlled by the voltage on the controlling signal. Lets say that a 1V signal means a full intensity.
Do you mean that the line will look different depening on if the 1V signal is generated from 640 or 320 pixels? If the line consists of 160 black dots and 160 white dots, does it matter if each dot consists of 1,2, or 10 pixels in the computer's memory?
Same resoning in the vertical direction. If a completly white image is sent with 15KHz, the beam will draw 240 white lines on the monitor which leaves 240 black scanlines. If the same image is sent with 31KHz and software scanlines, 240 white lines are drawn and between them 240 black lines. No difference.
If the image looks authentic or not depends on the monitor tube not on the electronics. If you could run a PC monitor at 15KHz the picture wouldn't look any more authentic than at 31KHz.
A D9200 makes it a lot easier to display authentic images from a PC since it got a monitor tube with low-res properties but its electronics supports 31KHz. I might still be a good idea to use an AVGA since it contains a lot of predefined resolutions but using it will not give a more authentic display.
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It's not just the scanline size that you need to consider. All horizontal resolutions other than 320 are lossy on a setup running at 640x480. Basically,
ArcadeVGA will allow you to perfectly emulate
240 line games
480 line games
AdvanceMAME (on a supported card) will allow you to perfectly emulate
192 - 240 line games
384 - 416 line games
480 line games
and Windows MAME on an ordinary VGA setup will allow you to perfectly emulate games running at 320x240.
redcoats:
--- Quote from: AceTKK on March 14, 2005, 12:03:03 pm ---the 9200 is so popular because it can run standard res games at their native resolution, as well as displaying Windows programs in 640x480 or 800x600.
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