Remove the power supply coil connecting between F-type output connecter and power unit.
Power is supplied via output connecter. When your receiver cannot supply power via antenna cable, cut power supply line from output connecter and supply power from another way.
Solder power supply cable to the diode lead.
Before soler, be sure to check short between the pad of power supply coil(photo 5: Brue arrow point) and the diode lead.
Drill through the case and out the power supply cable. Before you drill, you should better put off the circuit board from the case.