Greetings, I have repaired a laser LASERKING LKPD3 that I sold to a client a few years ago there was a fault with 12volt power and it's now working however from wear and tear and continuous use the unit has gone out of alignment quite badly. What is the best way to align the lasers ? should I start with one specific colour and also how do you align the brass allan screws on dichroic mounts, I assume one for x and the other is for y positioning. I am familiar with doing convergence on old tv sets and realize this requires a bit of patience. Many thanks