Black screen on boot

[Arcade-Projects]

I've been having some trouble on my supergun with my cps3 not booting like normal. The supergun itself appears to be in working order since it's loading my NeoGeo just fine and the 3s board itself does turn on.

If I boot the board with no cart in, I get a scrambled image and when I boot with the cart in, I get a blank screen and that's it. Based on this, I'm inclined to think that there is something wrong with the cart but I don't really know what could be the case.

The only real changes that I've made from when it was working to now was moving to Canada but upon looking at the PSU, it is rated to work from 100-240v and as mentioned above, it runs my NeoGeo with no issues. The only change to the CPS3 setup itself is using the SCSI2SD which has been working without issue when I was using it in the UK. I'm not using the molex cable since it's not needed it but maybe that's it.

I've attached some pics of what it looks like and any help would be much appreciated.

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