Got the MikeD Power Supply mod and all of my 12v power issues have gone away. Now the TV and pi board are both powered off the cabinet power box and not off my power driver board. I have the Swinks Snackbar mod and color DMD running off my PDB and no F116 issues...this is after sending the PDB to Coin-Op Cauldron for a much-needed refresh. Power for the mods seems to be evenly distributed across the PDB and the MikeD PS mod.
Rob