I have the simrad ap24, icom 504 radio connected to the MDF's via nemea 2000. I will get a picture of the sensor list a little later today.Do you have engines or something interfaced on your 2000 bus? Do you have a network hub or are these directly connected by network? Can you send a short of your SENSOR list from either display? It would be good to see what the sensor list shows the the associated addressing.
OK. will updating the system delete all the waypoints and the tracking saved on the MFD's?I would update to the newest version of software. That unit is on version 2.05 and the current version is 8.01. Here is a link to the software on the FURUNOUSA.COM website: https://fusaproduct.s3.us-west-2.amazonaws.com/Software/TZTL12+TZTL15+v8.01.zip
OK. what is the easiest way to back up the waypoints and tracking before I do the software update? Also, both MFD's have mini sim cards. Do I remove them before I do the software back up?You should always have a back up of your points if you value them but YES, it normally will delete your points/routes/tracks.
From your sensor list you have several instance conflicts to resolve after updating.
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