Oceanis 361 NMEA 0183 cable routes?

[ozzyb]

I'm having a problem with my B&G Quad system on our Océanis 361. The system is currently dead with no power to the instruments.
There's power at the main board but not getting through to the instrument displays.
There's a main junction box which I'm trying to find to check connections. Does anyone know where it would be located?
Any help would be appreciated, thanks.

 

[TSB240]

This is the feed cable for your displays.
B&G NETWORK Series Display 5-Pin Female Power Cable Cord 610-0A-028
It is a screened cable with a blue negative and red positive and has the part number on each end.
The positive should be fed by your nav switch. Have you checked for voltage on the terminal associated with this switch? The red cable should be on the output side of that terminal.
If you have voltage there disconnect the cable feeding your display and measure voltage between pins 1 and 2.
If you don't have 12v there then the fault is with the common return. This being blue should be easy to trace as it should be obvious amongst all the black wires commoned into the commoned large blue negative bus bar terminals that Bendytoys used at the end of their terminal rails.

Bendytoys use cage clamp terminals where you insert small screwdriver into top to open clamp. If cables are not inserted carefully they can easily be pulled out so check both red and blue wires are secure.

I would suspect the negative is badly connected.

 

[TSB240]

This is what it looks like.
Pardon Our Interruption...

 

[ozzyb]

Thanks for the information.
It's a problem with the quad instruments displays.
There's power in the cable coming up to the first unit however all the displays are blank.
Does it matter which instrument gets power first as Quad, Wind and Pilot and all linked?

 

[TSB240]

The power and data is daisy chained. You should have power on the output from each display on pins 1 and 2.
If you disconnect the output from the first instrument check if you still have power on the chain by testing pin 1 and 2 on the output from the first display.

If no power try connecting the second instrument directly to the power feed connected to the first display see if you can get the others powered.
If this works it points to a fault on your first display killing the power to the others.

 

[ozzyb]

Thanks.
I have power on 1 and 2 but nothing on Quad displays.
I've tried to just supply the auto pilot but still nothing.
I've just got a new B&G Triton 2 which I'm starting to fit. It will give me speed depth wind.
But will probably have to get someone in to link to older auto pilot.

Autopilot is more or less a necessity for longer trips.

 

[TSB240]

Just a few last thoughts on your problem.

Is it possible that the contrast/brightness setting on the displays has been changed?

Could they have "greyed out" so that you can't read them but they are working fine!

DO you have any nmea output?
If I remember right this is on the green cable in the daisy chain. I can't remember pin number. I would connect this to a phone or tablet either using an nmea to wifi or a serial to USB conection and a program for reading nmea.

A simple but less reliable check can be done by looking for 5v pulses with a meter.