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Main => Main Forum => Topic started by: mrserv0n on December 03, 2007, 12:29:44 am

Title: dreamcast vga adapter at 15hz?
Post by: mrserv0n on December 03, 2007, 12:29:44 am
I was looking into the dreamcast vga adapter for my cab, but would it run on a 15hz arcade monitor. probably not right?
Title: Re: dreamcast vga adapter at 15hz?
Post by: Austin.Wolff on December 03, 2007, 12:40:03 am
Uhh I don't know how that works, but worst comes to worst...if you are running a PC, just get a video input card and plug into your comp with your dreamcast.
Title: Re: dreamcast vga adapter at 15hz?
Post by: waveryder on December 03, 2007, 02:48:41 am
Dont use a VGA box for your arcade monitor at 15khz. You need to hack the rgb scart cable. Look here bags of help:
http://www.mameworld.net/pc2jamma/arc_dc4.html
Title: Re: dreamcast vga adapter at 15hz?
Post by: AE35 on December 03, 2007, 05:26:26 am

Yeah, the VGA output from the DC is 640x480@60hz = 31-32 kHz.




Title: Re: dreamcast vga adapter at 15hz?
Post by: Minwah on December 03, 2007, 05:47:04 am
You CAN use a VGA box to output @ 15khz but you will need to hack it (very easy to do).

http://arcadecontrols.com/arcade_consoles.shtml#dc2arcade
Title: Re: dreamcast vga adapter at 15hz?
Post by: waveryder on December 03, 2007, 09:04:48 am
Doesn't that defeat the purpose of using the vga box :dizzy:
Title: Re: dreamcast vga adapter at 15hz?
Post by: Minwah on December 03, 2007, 11:38:03 am
Doesn't that defeat the purpose of using the vga box :dizzy:

Yes...but it is a very easy way to hook your Dreamcast to an arcade monitor (which I presume the original poster wants to do).

Also, IMO this looks better than a DC on a VGA monitor (in most games).
Title: Re: dreamcast vga adapter at 15hz?
Post by: northerngames on December 03, 2007, 01:54:38 pm
if you have the clear plastic boxed vga box you cut wire 6 inside the box and it puts it in permanent 15k mode add a standard switch to it and then it can be switched between tv vga and cga  ;)
Title: Re: dreamcast vga adapter at 15hz?
Post by: Frosty on December 10, 2007, 03:34:37 pm
I was looking into the dreamcast vga adapter for my cab, but would it run on a 15hz arcade monitor. probably not right?

Yes to all questions.  I did a post on using a simple DC VGA cable (http://forum.arcadecontrols.com/index.php?topic=37411.0) hack to get a 15kHz output...
Title: Re: dreamcast vga adapter at 15hz?
Post by: mrserv0n on December 10, 2007, 03:53:31 pm
I was looking into the dreamcast vga adapter for my cab, but would it run on a 15hz arcade monitor. probably not right?

Yes to all questions.  I did a post on using a simple DC VGA cable (http://forum.arcadecontrols.com/index.php?topic=37411.0) hack to get a 15kHz output...

Great, thanks Frosty!
Title: Re: dreamcast vga adapter at 15hz?
Post by: HaRuMaN on December 10, 2007, 04:07:50 pm
I use a hacked VGA box to hook my DC to my 25" arcade monitor (Mortal Kombat), and it looks REALLY nice.