On Thu, Apr 2, 2020 at 9:44 AM Bob Albert via <bob91343=[email protected]> wrote:
It's complicated by the fact that I don't know where the parts are for different parts of the diagrams.? All cables have been wiggled, all parts have been poked and tapped.? Nothing is running hot.? TP3 replicates the input signal but TP4 does not.? The 10V reference is spot on.
What is TP4? ?0V?
BTW, best to turn auto-cal off or it will be constantly trying to switch back and forth between the input signal and references.