Can't power on the set yet so here are pictures of the mainboard I took today. Feel free to pour over them, I cannot see anything wrong myself.
To get the full-resolution photos please download from imgbb.
Note: C605 appears bridged in the first photo, but it is not.
When doing the first solder reflow, I noticed C751 was bridged. I don't know how long it was bridged for. Since then, C751 has been replaced but to no improvement.
The horizontal driver section may've been pooched by the C751 short, now that I think of it. Should check waveforms.