ST5000 Plus

[Steve - Raymarine - Moderator]

No, the drive wires are set up through polarity, so do not have to be connected color code wise, and if there weren't correct the drive would go hardover once you pressed Auto, so it sounds like they are connected correctly.

I have enclosed the fluxgate compass test, to confirm a working fluxgate compass. I would then re-do the compass linearization procedure to get a more secure heading into the system. Here is a link to the Owner's Handbook, the compass linearization procedure starts on page 73.

Compass Test:
Multi-meter should be set to:
(a) Resistance scale
(b) 200 ohm scale
The following procedure should then be followed:
1. Disconnect the transducer from the system.
2. Connect one multi-meter lead to the red wire and the other lead to the green wire and a reading as indicated in the test data table should be present.
3. Follow the above procedure for all the color combinations indicated in the test data table.
4. If all readings match those indicated assume the compass transducer is functioning correctly.

Compass Test Data:

Red to Green - 4 ohms
Red to Yellow - 4 ohms
Green to Yellow - 8 ohms
Screen to Blue - 8 ohms
All other combinations - OPEN
You are looking for a short or open. A +or - 2 Ohm reading is allowed.
If this check indicates a fault with the compass then you will be best served by replacing the compass. If no problem is indicated then you should send the compass and the course computer to a repair facility for evaluation.