Sega Astro City monitor help


#1

My friend has an Astro City in his shop that’s used to run PS3 AE and Marvel through a SCART to Jamma converter and regular Cthulhu boards. Besides that, there is nothing else to play. Besides buying various CPS2, CPS3, and Neo Geo boards, I suggested emulators to him. Being an Astro City and all, it’s not compatible with VGA directly from his laptop.

I then checked around and saw the Naomi Jamma IO converter. Is is possible to use the IO board to just be a VGA passthrough via computer? Will there be any resolution issues that have to be taken care of prior?

Thanks.


#2

I don’t think the NAOMI JAMMA I/O does anything for video conversion. As he already has the Scart->JAMMA adapter, may I suggest getting a J-Tag 360 instead as it can run lots of great emulators, or get an XBox (old one, modded) and get “CoinOps 2” for it (godlike emulator pack). Computers + cabinets = hassle.


#3

If the computer outputs a resolution at 15khz, will it pass through then? He does have a tri-sync chassis but due to the effects of 15k resolution games are with them, we wanna keep the original one intact.


#4

If you can track one down, I’d recommend picking up an Extron Emotia scan converter. This will convert 640x480 VGA to a low-res 15khz RGB signal (with scanlines even). Here’s one model on eBay:

I only own the original model myself, so I can’t speak for specifics on this as far as supported resolutions and whatnot, but this is definitely the product line to look into.


#5

Not sure. Maybe. But you might as well try to make a VGA->Scart cable instead and use the Scart->JAMMA interface (unless he already owns a NAOMI JAMMA I/O). http://www.idiots.org.uk/vga_rgb_scart/


#6

Thank you guys. I will look at these and see if the JPAC and Soft15khz can act as an alternative. Much appreciated.