Hi, I have a Chinese laser machine (2 years old with light use, approx 10 hours a week) with a 80w Reci tube, my problem is for the last couple of weeks the power of the laser has dropped, on first start up in the morning when pressing the test button at 80% will barely mark the wood but after 10 seconds it starts to improve, but then takes a couple of seconds to improve second and third time around.
I can't see any arcing on the red wire, I was wondering if it's worth replacing the power supply? tube? or controler first. Any help would be appreciated.