So im pretty new to this entire arcade machine repair stuff but I have been working on computers for many years. After researching it seems like the machine has 2 power supply's. One is an old transformer and one is a switch. it seems as though the power cord from the wall is going into the old transformer but the transformer inst hooked up to the mother board its only hooked up to some black heat sink. It looks like the switch is connected to the mother board but it is not connected to any power source

http://imgur.com/a/RiP5Q

Here is an album of inside the machine if you want more pics I can gladly take them