Try adjusting the small
potentiometer named "dvd"
located on the back of laser diode.
This totally fixed my problem. I turned my clockwise about one or two full turns and it worked!
Condensation problems on circuit, or power supply failure.
I have the same problem and I can't find anything to help. If you find something please email me at [email protected]. I'll do the same for you! Thanks!!!!
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