KLN-89B works!

With help of builder-buddy-bill, we got the 89B working. First we confirmed I didn't fry it by powering it on with an external power supply wired for the 89b. It came right on. Damn.. why isn't it working in the plane! I opened up the connectors on the external power supply to see how it was wired to compare it with how I had wired it. The ONLY difference was I didn't have power running to the 14v Lighting pin and the Voltage monitoring pin. I think it was probably the 14v lighting pin that needed a connection to run the display. The 89b will monitor bus voltage and warn you if it drops below a preset level, so I'll have yet another LV warning system. So I made up a quick wire and hooked up those to pins.

With it powered on in the plane! and hooked up to the antenna, I rolled the fuse out into the open to make sure it picked up a GPS signal. I compared the lat/long position it displayed with the Garmin 196 and all appears well. Now I just have to figure out how to operate the darn thing.

(Time: 1 Hours)