Hello members, I am new here, and would like to ask for some advice. I would like to learn to maintain and repair a few fixtures. For now, I need to address at least 4 Coemar ProSpot LX 250. 2 fixtures don't power on. 1 fixture has a zoom issue when compared with others. 1 fixture does not reset to white/open, but is stuck on red. Other fixtures are still working, but a few have base fans that don't start with error messages flashing. Can anybody suggest what is the general approach to repair? Is there some repair manual or tutorials, besides parts available? Also, is there a technician who is familiar with these fixtures who is available in NYC for a check up and some consultations? Please let me know. Thank you.