I had some progress yesterday and it looks like the 4 amp fuse inside the PS is burned out, at least i hope that's the only issue. I'm going to replace it this weekend and post the results. The PS itself looks good, the caps, resisters look good on visual inspection. which leads to my question aside from an air can what else can i do to clean the inside of the PS. From the pics you can head the header broad has what i though was a little rust but i think is some kind of residue, what can i use to clean this?
also while cleaning the cab last night i notice they split the AC coming in and have a 120V plug in the cab which connects to the white box on this attached pictures. The box has a push button and it goes to the main harness/coin doors. On the box it says "time pilot" "black tiger" and something else with numbers next to it, anyone know what this is? I know this cab was original a DK, at least that is what it says on the coin box, but could this have been something else at one point?