Response from Jonathan: Aaron,

Some manufacturers will use a “classic” power supply (which is basically a linear power supply for AC voltage) to power parts that might not be common to other arcade cabinets. In the case of your Cruis’n USA, it looks like these AC voltages are going to parts such as the audio amps, the wheel driver, etc. If you look on the last page of the manual, you will find the power supply wiring diagram which shows what voltages go to which wires. Here’s a link: http://pdf.textfiles.com/manuals/ARCADE/A-J/Cruis’n%20USA%20(Single%20Sitdown)%20%5BPreliminary%5D%20%5BEnglish%5D.pdf

As for your other question, the Happ power supply does not replace your linear AC power supply. It only replaces the switching power supply which could be the problem. If you’ve tried adjusting the power supply up but you can’t get the voltage high enough to power the game, it could be that your power supply is not pushing enough amps. Cruis’n USA needs to have at least 12 amps on the +5 VDC line and 2 amps on the +12 VDC line in order to operate correctly. Buying the Happ power supply would fix this problem as it’s pushing 20 amps on the +5 VDC line. If you wanted to keep something similar to what you currently have in your cabinet, you could buy the standard Happ Power Pro switching power supply which should also give you the necessary amps. Here’s the link: http://na.suzohapp.com/amusement_products/power_supplies/80-0064-00?SS=ON

Probably the best thing to do at this point is to use the manual to measure all of your AC and DC voltages in the cabinet to make sure the correct voltages are being delivered to the right places. If it’s just the DC voltages that are low, it’s probably time to replace the switching power supply. If the AC voltages are incorrect (which is pretty rare but can happen), it might be time to replace the linear power supply. Hope that helps. Thank you for your question and good luck with your repair.