HardAzRockz
Enthusiast
ThanksNo idea what would come next, but I would start probing upstream to anything conntected to SH2. Page 12-13 of the Saturn Service manual shows where the lines are (not STV but close). https://wiki.console5.com/tw/images/3/39/Sega_Service_Manual_-_Sega_Saturn_(PAL)_-_No._013-1,_June,_1995.pdf
Best of luck!