Fuses are all good. Dosent turn on at all. I have 12volts on stb power pin 4 of power supply. Relay rl9001 on power supply board is not turning on. Relay is good. Has 12 volts positive on the relay. I’m assuming mpower goes to ground and triggers relay. This isn’t happening. I can short out relay to let 110 volts thru and receiver powers on and seems to work. Any info on troubleshooting would be appreciated.