Panel 221VU uses LEDs for the backlight function. To drive the panel backlight you will need to supply 28 VDC and 5 VDC to the appropriate pinouts. Thank you James for the assistance. Pinouts Outputs (5 VDC) 671VC IR1 OFF 30/7 (gnd) 671VC IR1 FAULT 17/7 (gnd) 671VC ADR1 FAULT 22/7 (gnd) 671VC ADR1 OFF …
Testing the panel – Battery 1 and 2 switches still intact and working after all these years!
A few shots of the genuine overhead panels which arrived a few weeks ago. Figuring out the schematics will be a nightmare.
Pinouts diagram remains the property of Simon Stusek. Not for commercial use, or publication without permission. pin-out_23-24vu
Simon has figured out the Overhead Flight Control Panel pinouts. Well done my friend 🙂