Hello,
I am having a problem with my APM 1. Channel 1 and 4 OUT are not working. I have read everything and did all my homework. Everything else is working Mag,accel,gyro,gps,CH3,CH2......ect. Could I have burned my board by accidently plugging two power sources to the board at the same time? Any help would be great. I am trying to decide if I should order a new 2560 or not. Oil pan should…