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Main => Consoles => Topic started by: metro on March 21, 2005, 10:47:03 pm

Title: Dreamcast Arcade Monitor support.
Post by: metro on March 21, 2005, 10:47:03 pm

Ok I need some help guys.

I do not have a vga cable so I have to make one from scratch.

 I have a DC VGA box with the correct wire cut. I need some help making a cable to connect from my monitor to the vga box. On my monitor it has r/g/b/h/ground wires and I know to twist the horizontal and vertical wires from the box to the monitor and the r/g/b/ is a srtaight connection. Now with this cable where would I connect the ground coming from the monitor. Wich pin on the vga 15-pin would I connect it to. Do I need to connect it to one pin or should it be connected to several pins like the r/g/b grounds along with the h/v grounds.



 

Title: Re: Dreamcast Arcade Monitor support.
Post by: metro on March 22, 2005, 02:22:43 am

Got it. I hooked up monitor ground to pin 10 and walah, I'm a happy man. I have two discolorations in the top right and bottom left corner but I can live with it for now. Next on the list is to connect controls. Thanks for all the info on this site and everyone that helped out.

Title: Re: Dreamcast Arcade Monitor support.
Post by: Dave_K. on March 22, 2005, 04:35:19 am

The coloring problems in the corners sound like your monitor needs to be degaussed.  Either that or you have speakers to close to the monitor.

Title: Re: Dreamcast Arcade Monitor support.
Post by: metro on March 23, 2005, 10:19:52 am

My cab has a button that takes care of that problem. i thought it was my other cab that only had that feature. I have an astro city and a new astro city.......

They both also have a volume control so would it have an amp itself or would normally is the sound powered from the game board. I am looking for a solution use the existing speakers with the cab and DC.

Title: Re: Dreamcast Arcade Monitor support.
Post by: Dave_K. on March 23, 2005, 04:27:23 pm

Trace the L+R sound input from the jamma connector to the sound board, and run a wire from your hacked VGA box to that for sound.  Other than that, you could also buy a SA-155 amp (see ebay) they are small and powerful, and will drive your original 8ohm speakers.

Title: Re: Dreamcast Arcade Monitor support.
Post by: metro on March 23, 2005, 05:32:17 pm

I thought jamma was mono and not stereo. I was hoping i could find a stereo input in this cab. My new astro city has stereo input. the regular astro to my knowledge only accepts mono.

Title: Re: Dreamcast Arcade Monitor support.
Post by: Dave_K. on March 23, 2005, 05:42:43 pm

Well does the older astro have 2 speakers or one?  Yes the std jamma spec calls for mono, but later cabs utilize 2 more jamma pins for stereo.  I believe its pins L,10,M,11.  If the older astro has a mono amp in it then you are pretty much screwed and would have to buy an SA-155 like I said previously.

Title: Re: Dreamcast Arcade Monitor support.
Post by: metro on March 23, 2005, 07:39:19 pm

I'll look into the other pins. My cab has 2 speakers in it. But more than likely I will have to buy an amp wich is not a prob really, just trying to utilize what I have already.

Dave. Do you know about Naomi hardware.......

Title: Re: Dreamcast Arcade Monitor support.
Post by: Dave_K. on March 24, 2005, 11:03:58 am

Quote from: metro on March 23, 2005, 07:39:19 pm

Dave. Do you know about Naomi hardware.......

Gozur (who is also on the board here) recently bought one.

Title: Re: Dreamcast Arcade Monitor support.
Post by: metro on March 25, 2005, 04:56:58 pm

Well I figured out what I was wanting to know for now but thanks Dave you have been a big help and inspiration. You always have a god attitude and are not negative when people need help. :)

Title: Re: Dreamcast Arcade Monitor support.
Post by: Dave_K. on March 25, 2005, 05:28:45 pm

Quote from: metro on March 25, 2005, 04:56:58 pm

You always have a god attitude and are not negative when people need help. :)

Yeah, I got to do something about that god complex... ;D  joking...

Anyway, thanks.  I recently aquired an Astro City 2 cab that I'm going to overhaul and make into a rad looking dreamcast arcade cabinet...so stay tuned!

Title: Re: Dreamcast Arcade Monitor support.
Post by: metro on March 25, 2005, 10:28:37 pm

Can't wait so keep us posted man. I'll be looking forward to it. :angel:

Title: Re: Dreamcast Arcade Monitor support.
Post by: Dave_K. on March 26, 2005, 11:25:33 pm

Quote from: metro on March 25, 2005, 10:28:37 pm

Can't wait so keep us posted man. I'll be looking forward to it. :angel:

I started posting pics in the projects forum here:
http://forum.arcadecontrols.com/index.php/topic,34226.0.html