Durandal PWM output problem


I am experiencing what looks like a hardware problem with a Durandal FC. I am not getting any signal out of PWM MAIN 1 and 5.

I have actually tested 2 different FC boards, and copter 4.0.7 and 4.0.6. I’m afraid the boards could have been short circuited by a bad connection on another port, like the ADC, but I’m not sure if this possible?

Other than the likely hardware problem, is there something else likely to be causing this problem?

Turns out it was a short on one of the wires. Must have damaged the signal output. Unfortunately it took 2 flight controllers to find it.