[CA] [CA11] EV-1 Heading Sensor not Recognized

[Chuck - Raymarine - Moderator]

FluidDynamic,

It sounds as though you may have a more basic problem with the backbone or possibly the SeaTalkng / NMEA 2000 communications circuitry within the products which have been interfaced to it. It is recommended that you begin by verifying that 12VDC is being supplied to the backbone via the SeaTalkng Power Cable. This may essentially be verified by determining whether the autopilot control head will switch ON. If so, then it is recommended that you use the About System diagnostics feature of the autopilot control to determine whether the autopilot control head is detecting other the devices which have been interfaced to the backbone. If so, then list the devices detected by the autopilot control head.