Having trouble with my laser

I have a yorahome6550 with a 40w diode laser. Running win10 on hp laptop. the laser was turning off and on repeatedly. I ordered a new board and laser. I replaced the board and still did the same thing so i replaced the laser. It doesnt turn off and on like it did before and the laser does come on and burn. My problem is it will only burn at a 45 degree angle and nothing else. Watching it on the screen it shows it going around the picture but its not burning anything buy at a 45 degree angle any help would be greatly appreciated. i see a yellow light on the board

Please explain…?


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