http://www.tru-cast.com/EFIS/DCP_5897.jpg
Yesterday I flew my experimental with the newly installed EFIS-D100 (2nd flight). Two of the 6 times I powered up the EFIS I got the same bad screen (as shown in the linked photo).
The first time I got it, engine was off with EFIS running on ship's battery (battery charger attached).
Second time I got it was 2-3 minutes after engine start with Alternator running (14Vdc)
Both times: The screen came up as in the photo (i.e., no Dynon logo first). I left it on for about 2 minutes with no change to the screen. I pushed "off" button to no effect. I turned off power (via circuit breaker) to the instrument (I use Master_Power only; i.e., no Keep_alive). After 1-2 minutes screen went blank. I waited another minute then pressed power button. Dynon logo appeared and it ran OK after that until shutdown.
Internal battery between 14-14.4 volts. Temp about 16 deg F.
What is going on? I am starting to loose confidence in the EFIS due to reliability concerns.
Part of my concerns stem from the fact that if the software has a problem, there is no way to reset the unit if it has an internal battery. I had a problem last week where the screen "locked up", and I could not power down the instrument until the internal battery was depleted. I think these problems need to be duplicated and corrected, but a physical switch to reset power may also be prudent for the long run.
Jim Dunn
