Main > Monitor/Video Forum
Dream cast arcade machine (questions)
tom61:
1) You can bypass the Jamma harness for the video, just wire in an extra connector to the monitor. I can probably get a picture of how I did it in my cab in a couple of days, if you want. Make sure that you unplug the Jamma harness from a game, otherwise the picture goes funky.
2)I've tried the DC2Jamma way and failed, it turns out not every SCART adapter for Dreamcast is the same(Some have composite video, some composite sync). I'm going to try the VGA Box hack next.
3)From what I can tell that adapter doesn't convert any signals, only puts them to the right pin on the Scart cable. However, I might be wrong, I just found out that a S-Video to composite adapter is just a capacitor placed on the right pins! If you do try the adapter, tell us if it works.
mrselfdestruct:
I have a dreamcast to jamma question. Is it possible to go from a dc vga box into a J-Pac in a cabinet? I have the jpac for a mame box and thought this would be a simple way to add a dreamcast. the vga box has been hacked to support the 15khz.
Please let me know if this is possible. Thanks.
tom61:
All you have to do is plug the hacked VGA box into the J-Pac's video in to get video to your arcade monitor.
mrselfdestruct:
I tried to set this up using the dreamcast vga box to the J-Pac. But the screen fades to white. Has anybody been able to do this or seen this type of problem?
l3et9jdh:
Disconnect all the wire on the DC VGA cable leaving only:
R/G/B/H/V and ground.
Do you ground all of them? Which one do I ground?
Do I need a Chip in order for this to work (LM1881)?
--- Quote from: Dave_K. on June 21, 2002, 10:08:16 am ---
Hooking a DC up to a 15khz arcade monitor is very simple.
--- End quote ---