A call for help from any electrical guru's!
I have been fighting a bad gremlin for a few weeks now. It has now taken over my life and is consuming me at a high rate! Please help me!!!! :) It is a complicated issue that has me and David stumped.
I have 3 phidget 0/16/16 cards in my overhead utilizing their own power supply for the input switching. I am using all real components in my sim.
Here is my issue,
I have had serious phantom/ghost inputs coming from the phidgets when i turn on the 28Vdc power supply to all my lamps and indicators. The led's on the phidgets will flash on/off in a split second like the switch was moved but they are not being moved.
Fast forward after many late nights, i have narrowed it down to the lamps in the TQ (park brake and stab trim) If i take the bulb out, no problems!! Put them back in, interference like crazy! I tried redundant gnds, swapping power and gnd on the bulb sockets, resistors on the phidget inputs, and seperate PS. No luck! Any other ideas?????????
Thanks,
Rob