1Chip SNES Video Issue

Hello all. New issue. I have a 1chip snes and I have no blue channel. I can read voltage coming from all the other colors on the main 1 chip (not the srgb amp but before it) and I have nothing coming out of the blue. Is the whole chip fried? Ive tried reflowing all the pins and still nothing. Does anyone know if there is a resistor or diode or cap leading up to main chip that goes out to the color channels or is my blue color inside the chip dead.

 

If you don't get any blue directly out of the CPUN, check that pin for a short with ground.
If it's shorted, it could be a passive component. If it's not shorted, your CPUN is fried.

 

If I bridge the blue to the red on the cpun I get blue out. And I have continuity from the cpun to the srgb and continuity to ground. It's just not pushing any voltage from the blue. The voltage is minimal at best