help needed with system c2 board, no imputs no coinage

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    • help needed with system c2 board, no imputs no coinage

      hey guys,

      i received a a system c2 board (tant-r) yesterday, but when i connected it to my has or my blast city, it starts in attract mode,but it doesn‘t react to my coining up.
      When i try to change the dip settings to free play it still shows insert coin.
      And when set the dip switch to sound during attract mode it stay silent.

      any ideas what i could try? Otherwise i would need somebody who can repair this for me...

      Thanks for your help!

      Darksoft: CPS2, MVS, Taito F3, Sega ST-V
      Apocalypse: Irem M72
      Others: Naomi Netboot, Taito GNet
      RGB: HAS 3.1
      Frank_fjs: Sentinel Supergun, 4xMD2NEO (2 old, 2 new), 2xSNES2NEO, Jamma Extender w. Kick extension
      XianXi: Spitfire
      Cab: Sega Blast City (2930), Sega New Astro City
      VAPS
    • Either you have a ground issue for the inputs, or might be the 315-5296 IO chip is faulty.

      Do you have a logic probe? Maybe check that on the JAMMA edge inputs go from high to low when you press buttons.


      "I'd 1cc games but I have a real life."
      01010011 01000101 01000011 01010010 01000101 01010100 00100000 01001101 01000101 01001110 01010101 00100000 01000111 01010101 01011001
    • no, i don't have a logic probe (yet)... atm i'm trying to assess if i return the board or if it's worth fixing.

      it was sold as working, very clean and i got it pretty cheap, somehow i feel it would be a shame to return it....
      Darksoft: CPS2, MVS, Taito F3, Sega ST-V
      Apocalypse: Irem M72
      Others: Naomi Netboot, Taito GNet
      RGB: HAS 3.1
      Frank_fjs: Sentinel Supergun, 4xMD2NEO (2 old, 2 new), 2xSNES2NEO, Jamma Extender w. Kick extension
      XianXi: Spitfire
      Cab: Sega Blast City (2930), Sega New Astro City
      VAPS
    • short bump and update, i ordered a logic probe today, then we will see. i decided to keep the board because, apart from the problem it's in really nice shape, so that i hope i'll get it fixed...
      Darksoft: CPS2, MVS, Taito F3, Sega ST-V
      Apocalypse: Irem M72
      Others: Naomi Netboot, Taito GNet
      RGB: HAS 3.1
      Frank_fjs: Sentinel Supergun, 4xMD2NEO (2 old, 2 new), 2xSNES2NEO, Jamma Extender w. Kick extension
      XianXi: Spitfire
      Cab: Sega Blast City (2930), Sega New Astro City
      VAPS