The LEDs that illuminate the table top on Air Fx are 12v LEDs that are on all of the time when the game is powered on. If half of the the LEDs are out it is likely due to a blown fuse. The fuse was previously a 7 amp fast blown fuse we have since updated the fuse value to 8 amp fast blow fuse. If your table has not been changed please change both inline fuses to 8 amp. When you open the table top you can access the 12v power supply by the main board, you will then see two inline fuses for the LEDS which are shown below.
If all of the LED are not operational then check the 12vdc directly from the power supply and then follow the wiring to the LED connections looking for damaged wiring.