The driver board looks fine. The B2 P actinic chips have failed on the pad you sent the photo of. You can tell by the brown color around the chips. often when a chip fails like that, we see that it affects the others on the same circuit by putting extra stress on them and they fail as well. It is likely that the chips have failed on the other 2 pads as well, but I can't say for sure without seeing them. I recommend replacing the LED pads. Maxspect has discontinued the 16000k pads like you have and replaced them with the 15000k pads. If you have the black lens covers with the round, clear lenses, they will need to be replaced with the 120 degree reflectors because the 90 degree lenses are not compatible with the new 15000k pads.
You can purchase the parts and replace them yourself using the links below:
http://www.coralvue.com/maxspect-razor-15000k-led-pad
http://www.coralvue.com/maxspect-razor-r420r-120-degree-white-reflector
Or, if you would rather send it into us, we offer a repair service for $120 that includes all parts and labor needed to repair your fixture as well as return shipping. This is usually the best way to go cost-wise considering the driver and control boards are $50 each, the LED pads are $60 each, and the reflectors are $14.99 each.
Let me know which option works best for you and if you would like to send in for repair, I will give you further instructions.