Yes, HDMI cable works. It’s the same video signal but with audio and Infoframe data stripped out.
You could also try adjusting the vertical frequency with a dual frequency oscillator (DFO). See here (that guy had an MVS though): https://shmups.system11.org/viewtopic.php?f=6&t=33450&p=1090558&hilit=Dual+frequency+neogeo#p1090558
I thought AES was also 264 lines (like MVS), but 263 lines and refresh that close to 59.9 should work on like 99% of TVs, shows how picky Sonys can be.