Hi,
I've got the PSX snac adapter from https://misterfpga.co.uk/product/mister ... x-adapter/ and I can't get the composite port to work with my official gcun. Plugging in the RCA won't supply any sync at all. I've tried on multiple CRT's and always the same experience. Confirmed gun is working correctly and if using a CRT with component I can tap into the green rca and the gun works perfectly through snac but sync directly from crt. Obviously I can't do that on my preferred SCART Loewe CRT. All other PS1 controllers work through the snac, the composite port just won't deliver sync.
Has anyone else experienced this? Hopefully something simple I'm doing wrong.