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    Sega 838-13683-02 I/O causing screen flicker

    Hello, Second time posting for help but I recently got a Sega Naomi with MvC2 and Sega I/O board Rev A from my understanding This guy below..... The Mobo and game run fine however the screen is flickering. From my limited knowledge I think its the I/O board when connected to Jamma seems to be...
  2. S

    CRT showing grainy horizontal line scrolling up

    Thanks for the response, I got one and it worked like a charm!
  3. S

    CRT showing grainy horizontal line scrolling up

    Hi there, First time post but I'm having an issue with my CPS3 and CPS2 on my arcade machine when connecting RCA cables to the audio out. When connecting to my amp the sound works but I get a very faint grainy line scrolling up through out use. However when I disconnect the amp and or RCA...
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