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I am using an mvs vortex cart and the console was running fine with sound when I was able to start it up, but after a couple of minutes and trying other games i get no sound for any of the other games get no sound. I went to 240p test suite and I got this:any fix for this?

need some help figuring out why does my mvs produce this grey screen, but i can still hear sound and see video psu i used: https://www.amazon.com/dp/B08BZL4YLY?ref=ppx_yo2ov_dt_b_fed_asin_title supergun i...