The problem with the SAFETY LIGHT CURTAIN SENSOR LC 1650 ( sensing problem ) in this picture is that our engineers figured out what the problem was with the components, and when it was fixed, the sensor working properly. We also do AC/DC drives, servo drives, HMI repair service, LCD, touch screen and knitting, sizing, weaving, warping and casting machines, all kinds of industrial electronic PCBs, keyboard replacement and electronic board repair service.