Should be an easy question.
Never used a tesa 300 before.(or any of the new systems for that matter)
When you turn the unit on (in the back) does the lamp automatically come on, or is there an icon in pcdmis that you have to click to make it come on??
It is likely there are several types of lights, bottom, top and probably a ring LED light as well. I can't answer your question specifically but it may be controled with the "jog box" or through PCDMIS or likely through both.
It is likely there are several types of lights, bottom, top and probably a ring LED light as well. I can't answer your question specifically but it may be controled with the "jog box" or through PCDMIS or likely through both.