Help requested for Naomi-Supergun connection
Posted: Tue Oct 23, 2007 3:14 am
Hi, I just got a Naomi w/GD-ROM, power supply, and Capcom I/O. I'm using an NTSC TV with a Sigma AV6000 supergun to play the Naomi. However, the picture isn't showing.
I set everything up with the SCSI cable between the motherboard'm DIMM and the GD-ROM (a little loose on the GD-ROM end's right side) and the power supply connected to both the motherboard and GD-ROM. The power supply, motherboard, and GD-ROM all light up and their fans turn on.
I also have audio, VGA, and USB cables running from the motherboard to the Capcom I/O with the Jamma side of the I/O connected to my supergun's Jamma harness.
Now, when I turn on the supergun and plug in the Naomi power supply, I can hear the startup tune to the Naomi but nothing ever shows up on-screen. The startup tune eventually loops and beeps but I haven't been able to produce any other sounds by pressing buttons on my arcade stick. I tried flipping up and down both the leftmost and rightmost of the 4 dipswitches to enable 15.7Khz but still nothing appeared.
Basically, I've hooked everything up exactly as the previous owner described and labeled but can't get a video signal (although the screen does distort a little at the startup). Is there something I'm missing or not doing right? If pictures would help, I can probably supply them. And if it helps knowing what I have in there, I'm trying to play Jingi Storm on a JP BIOS Naomi with the security chip installed. But again, I don't even see a Naomi startup screen (if there is one).
If my next step ought to be ignoring the Capcom converter entirely and just plugging the VGA cable into a computer monitor just for testing the graphical output, I can certainly do that. Any help is much appreciated.
I set everything up with the SCSI cable between the motherboard'm DIMM and the GD-ROM (a little loose on the GD-ROM end's right side) and the power supply connected to both the motherboard and GD-ROM. The power supply, motherboard, and GD-ROM all light up and their fans turn on.
I also have audio, VGA, and USB cables running from the motherboard to the Capcom I/O with the Jamma side of the I/O connected to my supergun's Jamma harness.
Now, when I turn on the supergun and plug in the Naomi power supply, I can hear the startup tune to the Naomi but nothing ever shows up on-screen. The startup tune eventually loops and beeps but I haven't been able to produce any other sounds by pressing buttons on my arcade stick. I tried flipping up and down both the leftmost and rightmost of the 4 dipswitches to enable 15.7Khz but still nothing appeared.
Basically, I've hooked everything up exactly as the previous owner described and labeled but can't get a video signal (although the screen does distort a little at the startup). Is there something I'm missing or not doing right? If pictures would help, I can probably supply them. And if it helps knowing what I have in there, I'm trying to play Jingi Storm on a JP BIOS Naomi with the security chip installed. But again, I don't even see a Naomi startup screen (if there is one).
If my next step ought to be ignoring the Capcom converter entirely and just plugging the VGA cable into a computer monitor just for testing the graphical output, I can certainly do that. Any help is much appreciated.