Here is my question. How do I adjust the potentiometer on a PCB in a thermal chamber under wide temperature range testing? Say -55C to +125C. How can I test those test points in a the chamber? When in the room temp, you just use a probe of a oscilloscope to hook the test points for measurement. In a chamber, what do you do?
Since the chamber door is closed, I cannot just have the access to the pot on the PCB and cannot adjust it by my hand. For the thermal chamber I have, all the SMA ports on the PCB are connected to the test equipments outside the chamber through SMA cables through the door of the chamber.
Thank you.