Auto dim problem

[bmarvel]

I have an HS-34 and D-100 in my RV-8A. 5.1.1 is running in both boxes and everything has been working properly. For the first time in many months I was flying at night and noticed that the auto dim feature dims the D-100 screen and HS-34 as it should, but after a minute or so the process starts all over again with both units instantly getting bright and then gradually dimming down. It continues this way for as long as I am in the air. This even happens when I cover the light sensor on the HS-34 with my finger, thus preventing it from sensing any ambient light. I have not timed the process but it seems that it repeats about every minute. Nothing else is presenting any problems. When I disable auto dim and set a fixed screen brightness, it holds that setting.

Any idea as to the cause?

 

[dynonsupport]

The technical answer is that there's some light leakage going on between the LEDs and the sensor inside the unit. The non-technical answer is that we'll need to have it here to fix it (just a reminder that our products are not field-servicable). Call us at 425-402-0433 or email support at dynonavionics dot com to set up an RMA.