Raytheon Tridata replacement not working

Hi I replaced my Raytheon tridata st50 which had nav, depth, speed. To a st60 Now the autopilot does not work.
The new display head is a Raytheon st60 Tridata which has depth,speed, trip. Is there another unit that will work or any solution to my problem? I can't find an st50 for sale as they are so old. Thanks SK

Without knowing more about your system, I’m guessing, but you likely have disconnected or broken you Seatalk network. If you have a newer instrument, they usually work on SeatalkNG, and there is a converter available

Post up some more details, pictures or part numbers, will help get an answer

This is the converter. It should do the trick (sea talk to sea talk New generation - NG)
http://www.raymarine.com/view/?id=1597

As was posted we need some more info. What specifically does "does not work" mean? What are all the brands and models of the electronics? It may have nothing to do with Seatalk. For example on my 2001 factory install the auto pilot consist of the course computer and the St7001 display unit. They both get their power from the power bus and and the display unit is directly point to point wired to the course computer. The ST60 has no role in the autopilot. You may simply have a blown fuse on the power block that provides power to the course computer/display unit.

This is the old unit. (The1st owner, boat came to me this way) I am the second owner.
I replaced with Raytheon ST60 tridata

My auto pilot says standby 000

Unfortunately still need some more data, cant quite follow whats going on. The more details, the easier it will be to help. However, this is a little more data about these instruments. These are old (though still quiet functional) instruments. They usually were networked together via SeaTalk and or NEMA 0183.

1. Is you ST 60 working and providing data on the display?
2. On your Raypilot, is the displayed 000 close to your actual heading?

Most of these autolpilots are very similar. This is a picture of the basic system. If your heading is off, find your course computer and check that the wires from the Fluxgate Compass are connected. Also, make sure you haven't put a tool box or big chunk of metal near the compass. (they are usually in one of the hatches under the salon floor. The are about 2 inches in diameter and 2" tall)



Additionally, these Autopilots received some data from the Tridata sytems, likely the speed from your ST50, via a Seatalk Network. If you plugged the ST60 in just like the ST 50, it should provide the same data. Make sure you didn't pull the wires out of the course computer.



Here is the link to the Manual

https://raymarine.app.box.com/s/nwf2s5ha9xrltggghogu/file/3273035467

I would post up a question on the raymarine forum, and see if they cant get you and answer. There are sometimes a lot of gotcha's when dealing with stuff this old.

Ok, as shown the autopilot does turn on, but we cannot change heading, it's stuck on standby 000. We hired a tech and he suggested we change the display unit, which we did and it still did not work.
The st60 does not have a NMEA outlet, the old unit did(see pics in 1st post)
Thanks for all your help- still trying to figure this out?

It’s possible that the data it needs is coming from the NEMA network. The question is where is that NEMA data coming from or going to. Position and heading data might be on that network.

Q..What Chartplotter and GPS do you have?

Q. Where does that red/blue wire lead to?

Also, here’s a primer on Raymarine networks.

http://boatprojects.blogspot.com/2012/12/beginners-guide-to-raymarines-seatalk.html

Let's make sure the basics are taken care if. Is the boat in the water or on land? You can not change the heading in Standby. In standby it just reports the heading the course computer is receiving from the heading sensor. You can manually change the heading in Auto mode. Have you pushed the Auto button and tried to change the heading? You would then see/feel the rudder change position.

dtfeld said:

It’s possible that the data it needs is coming from the NEMA network. The question is where is that NEMA data coming from or going to. Position and heading data might be on that network.

Q..What Chartplotter and GPS do you have?

Q. Where does that red/blue wire lead to?

Click to expand...

NMEA out on the St50 is to pass on its data to a non-Seatalk device. That's a good idea to see where those wires end up. The course computer is kind of a stand alone device. It has point to point connections for the heading sensor and the display/controller and the rudder controller and NMEA. The NMEA usually comes from the chart plotter and is used to get data for the course computer to follow a route. If you manually change headings in auto mode, the NMEA data isn't a factor. The system should change rudder position when changing heading in auto mode. If it doesn't then I'd look at the course computer. Maybe something happened to it's power connection.