ST6002 Autopilot failure "no pilot seatalk failure" alarm

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum naz14,

You can determine whether the ST6002 has suffered a failure of its SeaTalk communications circuitry be connecting a SeaTalk Cable alone to one of the ST6002's SeaTalk ports. The red lead of this SeaTalk Cable will be connected to +12VDC, its shield lead will be connected to -12VDC, and its yellow lead will not be connected to anything. Upon application of power to the ST6002, should it report SeaTalk failure, then the ST6002 would be deemed to have suffered a failure an would need to be replaced. Should connecting the yellow and shield leads of a SeaTalk cable which is in turn connected to the powered SeaTalk bus containing your other SeaTalk devices result in the Raystar 130's LED to blink orange then red, then the S1G would be determined to have suffered a failure of its SeaTalk communications circuitry.

Should the ST6002 have suffered a failure of its SeaTalk communications circuitry, then it will need to be replaced with a p70 or p70R Autopilot Control Head, as Raymarine can no longer service ST600x Autopilot Control Heads. Should the S1G have suffered a failure of its SeaTalk communications circuitry, then it would need to be replaced with an Evolution EV-1 Sensor Core, p70/p70R Autopilot Control Head, and ACU of specifications matching the needs of the currently installed drive unit.