This week’s Tech Tip goes out to all of our Stagehand OEM boardcustomers. Gareth ran through a tricky troubleshooting process last week with a client who has 8 OEM boards and they started faulting regularly. When the E-Stop was depressed, some boards would properly E-Stop, some would reset themselves (not good) and some would not do properly register the e-stop status change. (worse!) The theater sent a video and some pics of the custom racks they had made and everything looked right from this end. Gareth noticed that the boards had been mounted to the metal faceplate with metal bolts, and although the bolts were isolated from the boards with plastic washers, Gareth asked them to switch to the standard nylon standoffs, which cured some, but not all of the problem. After visiting the theatre Gareth discovered that the bezels of the LCD screens were grounding against the faceplate of the rack. By increasing the length of the nylon standoffs, they ensured an air gap between the LCD bezel and the rack faceplate thereby insuring that the power ground and digital ground were isolated (important).
So this week’s Tech Tip is: If you use our OEM boards, mount them with plastic standoffs and make sure there is an air gap between the bezel of the LCD screen and the backside of your faceplate. Your gear will thank you.