Pioneer VSX-1023-K AV Receiver surround right channel blown?

I have a VSX-1023 k. Something was dropped on top of the receiver it did two things. It popped 2 solder in the power supply sections. These have been fixed. I tried to turn it on and had to reset the receiver (HDMI light was blinking). Once I reset it and shut off the multi-zone circuit it came on. However it quickly starting smoking white smoke from the main amp circuit board. It was coming right around the connector to the Surround Right circuit of the board. I do not see anything burnt yet however, obviously there is a problem. Would this be cause by a blown power transistor or something else in the circuit. Just want to know the most likely place to look. Don't want to have to replace everything in the circuit. Kind of new to this, appreciate any and all pointers. It is smoking right around the 4 pin connector shown in the center of both images I uploaded. I have it unplugged in the picture. Thank you for the help. ADDTIONAL PICTURES ADDED First Repair Last 2 Pictures below. We had to bridge a couple solders because the board trace had popped out.