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Main => Monitor/Video Forum => Topic started by: BLACK KNIGHT on January 05, 2004, 03:26:08 pm

Title: How do I connect a Medium Res. monitor to a PC??
Post by: BLACK KNIGHT on January 05, 2004, 03:26:08 pm

Okay, I have a Virtua Fighter cabinet with a 25" monitor in it.  According to KLOV it is a medium resolution monitor.  I'd like to convert this to a MAME machine...but I don't know what is involved in connecting a PC to it.  Do I need the arcadevga card from Ultimarc?  It looks like that is only for 15khz monitors.  Is there a way to wire it directly to a normal video card or something??

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: Dak-ak on January 05, 2004, 03:38:31 pm

a normal video card under windows will display a 31Khz signal, and you need a ~25Khz signal.

I think a program like advancemame can produce that.  Do you know what resolution that virtua fighter runs at?

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: BLACK KNIGHT on January 05, 2004, 04:02:21 pm

No, but I believe I read that medium res monitors run at 640x512 or something like that?

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: Brad on January 05, 2004, 04:42:59 pm

Advance Mame with a hacked VGA cable will definitely run on that Monitor.

Brad

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: Dak-ak on January 05, 2004, 04:52:26 pm

I'm personally experimenting with Linux on different monitors (my standard res) and am pretty happy... its standard windows system can produce the modes required...

http://advancemame.sourceforge.net/ (check out advanceCD... cool idea!)

http://www.mail-archive.com/xfree86@xfree86.org/msg10902.html (xfree and advance mame modelines are near identical)

http://www.msu.edu/user/jonesdes/html/advcfg.htm

http://easymamecab.mameworld.net/html/monitor1.htm (by page 9 you should be /smart/  ;))

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: BLACK KNIGHT on January 05, 2004, 04:52:51 pm

Okay, anyone know how I'd have to hack a video cable to get it to work?

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: Dak-ak on January 05, 2004, 05:45:52 pm

i would hazard the same way you would hook up a standard rez :-)

I wired directly to my monitors board ALA ultimarc because i was stripping and dumping its old JAMMA wiring... you may or may not be keeping it.

http://www.mameworld.net/pc2jamma/pc_arc3.html

http://www.ultimarc.com/monfaq.html#monitorcable

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: StephenH on January 05, 2004, 10:53:17 pm

One way is to use AdvanceMAME with a card that can output a 25Khz signal.  

Another way is to use a scan converter.

Still another is to use an old EGA graphics card

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: Brad on January 05, 2004, 11:15:06 pm

Quote from: BLACK KNIGHT on January 05, 2004, 04:52:51 pm

Okay, anyone know how I'd have to hack a video cable to get it to work?

I used this guide to great effect! Print out the molex connector guide too.

http://dragonsden.emuunlim.com/ddvgatutl.htm

Brad

Title: Re:How do I connect a Medium Res. monitor to a PC??
Post by: Dak-ak on January 06, 2004, 05:51:20 pm

http://www.arcadecontrols.org/yabbse/index.php?board=4;action=display;threadid=14667

you might be able to switch it to standard res.