Radio display trouble-Bendix King

gsimatos · Post by **gsimatos** » Tue Feb 23, 2010 8:20 pm

I have the Bendix King 97 radio. Very similar to the Icom 200. When installed I only get one half background lighting up on the display. If I pull the radio and have my avionics person set it up on the bench I get full brightness. I have checked the pins responsible for the display and have the right power and ground at the pins. Any ideas??? Thanks Gary

dons · Post by **dons** » Wed Feb 24, 2010 12:44 pm

I will start by saying I have absolutely no idea, but if I had to guess I would say there is a pin for auto-dimming that either has no voltage or the wrong voltage when installed in your panel. That, or maybe a photo cell that isn't getting any light when in your panel and therefore the radio thinks it is in complete darkness and auto dimming the display.

captain_john · Post by **captain_john** » Wed Feb 24, 2010 3:30 pm

I was thinking photo cell too.

The radio thinks it is dark out!

Before you do anything else, put a flashlight on the photo eye and see if it brightens up.

CJ