Yamaha RX-777 Stereo Receiver (Discontinued by Manufacturer)

I wanted to share with you guys how I fixed this Yamaha receiver problem I was having was when I turned power on it turns off right away we can enter diagnostic mode by hitting tone control info power and this is telling us that power supply 3 was low power supply 3 as well as 1 and 2 or on this circuit board and they all are connected together with 5 point 6 volts I hooked up an external power supply to see if it was a problem with the internal power supply or not and the problem still happens even with the external power supply connected we can see the voltage here I set to record min max when the fault occurs the voltage drops down to 4 volts looking inside the power supply 1 2 & 3 power comes on these heavy 18 gauge wires there's a few others on the board so I started unplugging them and I found that unplugging this one solve a problem and if we trace those back they go to this USB