During the process of swapping out a green LED assembly for a blue one the amp would not power up properly nor would the LED come on. When taking the cover off the 2nd time to investigate the head on one of the screws stripped and we were unable to get it out. It was taken to the shop and some damage was caused to the cover around the screw during extraction which is quite small but it really sticks out and bothers me a lot so I want to try and get it replaced.