Ray Marine ST60 Instruments not working

[prv]

Going through the manual, it would seem that the autopilot has its own 12A fuse and it is common to power the other instruments off that.

Assuming this is a typical Raymarine Seatalk1 setup, the autopilot itself will be supplied with power from a large fuse like your 12A one, and it then powers the Seatalk bus via a 2A blade fuse inside the autopilot "brain" box. It's under the removable part of the cover where the wiring goes. If that fuse is blown then the pilot itself will still be live, but not the control head or the other instruments on the same bus.

Pete

 

[steveej]

it was installed in 2004, so believe it is first generation

 

[RichardS]

it was installed in 2004, so believe it is first generation

So it is a C Classic after all. Is the 3 pin Seatalk banana-shaped connector on the back just an empty socket?

Richard

 

[steveej]

 

[dehlerdave]

Been there had that problem, post no 21 is your answer. Blade fuse under removable cover on the autopilot. Or, at least it was for me.
enjoy the chase

 

[RichardS]

View attachment 96157

OK .... that's not a C120 Classic as it's definitely not Seatalk capable. I would have thought that from 2004 it would be but it must be something even earlier. Either way, it's outside my experience, I'm afraid.

Edit ..... it's a C120W so much newer than 2004 and it's SeatalkNG / N2K compatible which is later than Seatalk.

Richard

 

[prv]

OK .... that's not a C120 Classic as it's definitely not Seatalk capable. I would have thought that from 2004 it would be but it must be something even earlier. Either way, it's outside my experience, I'm afraid.

It‘s got an STng connector on it, so it’s newer than the classic C-series, not older.

Pete

 

[RichardS]

It‘s got an STng connector on it, so it’s newer than the classic C-series, not older.

Pete

I edited my post whilst you were typing. The 2004 installation date threw me.

Richard

 

[prv]

it's SeatalkNG / N2K compatible which is later than Seatalk.

It does also support Seatalk, on three cores of the big black cable seen in the picture. However, it won’t be powering the OP’s instruments so your whole plotter subthread is irrelevant to his problem

Pete

 

[RichardS]

It does also support Seatalk, on three cores of the big black cable seen in the picture. However, it won’t be powering the OP’s instruments so your whole plotter subthread is irrelevant to his problem

Pete

See post #19.

Of course, I'm interested to know what you would infer from the 2004 installation date.

Richard

 

[steveej]

The invoice for the purchase installation is dated 2004 and so is the manual!

Accessing the back of the control unit is going to be fun.

 

[RichardS]

The invoice for the purchase installation is dated 2004 and so is the manual!

Accessing the back of the control unit is going to be fun.

I'm flummoxed. Raymarine show the release date as early 2009 with the first edition of the manual 81312-1 written in November 2008.

Richard

 

[prv]

Of course, I'm interested to know what you would infer from the 2004 installation date.

Nothing, because the model of plotter doesn’t matter.

I'm flummoxed. Raymarine show the release date as 2009.

Probably the invoice was for the installation of an earlier plotter which was since replaced with this one. It still doesn‘t matter, though, because the question at hand is the power supply to the ST60s, not the species, parentage, and political affiliations of the plotter.

Check the 2A fuse inside the autopilot brain (not the head unit), which will probably be somewhere near the rudder stock. If that’s ok, you’ll have to get at the back of the instruments and see if there’s power on the incoming Seatalk cable. If there isn’t, you’ll have to trace back along the cable to see why not.

Pete

 

[RichardS]

Nothing, because the model of plotter doesn’t matter.

Pete

It did to me but it doesn't now. A week is a long time in PBO.

Richard

 

[alan]

I don't know about Jeanneau but Beneteau have a relay which is powered from the switch panel; this relay then feeds a "high" current to the autopilot control box (not the instrument head) and then the pwer and data for all the Seatalk instruments are daisy chained from the autopilot control box. So, you probably want to be checking for 12v at the device (autopilot??) that feeds the Seatalk daisy chain. So it may not be just a fuse that you should be looking for.

Alan.

 

[dehlerdave]

If none of the above suggestions work try disconnecting each head unit in turn. I suffered from a single head failure that dragged the whole network down and appeared as if there was no power.

 

[steveej]

The Autopilot is an ST4000+ Tiller Pilot. I am not on the boat at the moment, but a quick check of the manual does not show any AutoPilot 'Brain', just the control unit. It only specifies a 12A fuse must be fitted. The control unit is powered by two spade connectors. There is no tyalk of any 2amp spade fuse.