D100 woes

[lwhitlow]

I've just completed the wiring on my installation  (d100 D120 hs34)

Its been turned off and on a number of times with no issues

However two nights ago,  I went to the shop to get some work done, flipped on the master and the D100 did not turn on. The other units did.

Cycled the master with no change. Cycled it again while looking at the d-100 and noticed a brief dim flash of the screen. Master off, Tried to power it up off of the internal battery with no response.

Master on again and this time it come alive with the dynon screen and then EFIS screen but 30 seconds later blink gone again

Master off I start looking.

Thinking I have a wiring issue I disco the 25pin connector and try again to bring it up on the battery   No Response.

Reconnect the 25 pin then master on and all units come up. I hate intermittents.

Leave everything running walk to do something else and after about a minute I hear the aircraft announce "DSAB Error"

Back to the panel everything is still running but the HS-34 is lit up like it has no DSAB connection.  While standing there the EMS starts sending EGT CHT and oil alarms because the engine is not running and these DO NOT SHOW UP ON THE EFIS only the EMS

Clearly the DSAB is not talking.

Cycle the master again all units up but the HS34 does not connect and the EFIS and the EMS aren't sharing.

Menus on the EFIS to DSAB configure EFIS says its not configured
HMMM IT was....

Configure the DSAB  all devices found all talk nice.  Very Odd

Cycle the master a whole bunch of times the rest of the evening everything works as advertised.

Shut the aircraft down  and returned to the shop this morning

Master on   no EFIS but it always does the dim blink on master on  (will not start on battery)  Cycle the master a number of times sometimes it will start but not stay running but usually no start  Did see some strange screen glows a few times

External buss voltage is never lower than 11.8 and the internal battery shows 16.1V when the EFIS does start

When I installed the units and did my initial config I had version 4.2 installed on the units. All thru the testing and install I had no issues. Last weekend I moved the software to all units to  5.1.1. There were no issues at all with the load and I made a backup of all units before I loaded 5.1.1

OK What Next???

Larry

 

[lwhitlow]

More notes from troubleshooting

Still have the startup keep running issue on the D100  but today after few start attempts the D100 kept running for longer periods.

Observations  D120 would alarm (oil pressure CHT EGT) but the d100 would not show them  but you could cycle thru all of the EMS screens so they were talking.

Rebooted the D120 (so the alarms would occur again) and got the EMS lost message on the D100 and as soon as the D120 came up the EMS lost message went away and all of the previous alarms from the EMS showed up on the d100 ( the EMS was not it alarm at this point it had just booted)

Cleared the alarms waited for them to occur again and they both appeared on both units. but before I could ACK on the d100 the D100 rebooted itself a few times and did not come back on to stay until I had cleared the alarms on the EMS. I cannot repeat this at will but since that point the EFIS does not always see the EMS alarms  but never looses the EMS screens.

Second observation       the HS34 seems odd  Spin the value knob and the baro changes quickly, spin the bearing knob and the heading bug moves quickly, Spin the course knob and the course moves quickly and the OBS on the SL-30 updates quickly  All as expected.

However pressing the heading knob to marry up the bug to present heading is sporadic.  press once sometimes it centers twist knob press again and nothing happens.  Press is twice or multiple times and sometimes it centers and some times it doesn't, press it once again and sometimes it centers and sometimes it doesn't

Course is a different story  it centers every time on one push never fails

Value acts like the heading knob sometimes setting the baro to 29.92 and sometimes not  and the double push to get to the bug setting sometimes works and sometimes doesn't leaving you adjusting the baro.

The heading source button also seems sluggish  to get it to select usually requires multiple pushes  It does not seem to react to only one push  it usually takes 7-10 to get it to let you select.

The nav source button works every time

BTW heres my full configuration in case it helps

D100 D120 HS34  the EDC is in the tail and the OAT sensor is back there with it

Garmin 496 into serial 1 of the HS34
Garmin SL-30 into and out of serial 2 HS34
Garmin 327 xpond taking the serial encoder our of the EFIS (works well no issues that I can see)

All of this is wired up per manual and the Wiki

OK  Ball is in your court.....

Larry

 

[dynonsupport]

Many of your symptoms could be expected if there were intermittent DSAB connectivity. Know that when the EFIS-D100 is offline, as far as DSAB is concerned, or powered up entirely, nothing else can talk to each other because the EFIS-D100 is the "bus master" that controls all of the communications between the different products.

The EFIS-D100 power cycling is enough to make it the suspicious device. You can see if other units are causing problems on DSAB by removing power to each of them, individually, and seeing whether or not the remaining devices' communication becomes more robust.

Finally, you have enough going on here that you might want to give our technical support folks a call at 425-402-0433.