Amiot DC Switch Panel on Beneteau 473

[nigel1]

Hoping someone can check a couple of things on the DC panel for me.


The other day I noted that all the LED indicator lamps were out on the DC switch panel (made by Amiot).
On examination, the first obvious thing was finding a wire had detached itself from one of the LEDs.
The LED’s have a blue and a black wire, the black wire connects to the load side of the associated switch, and the blue wire is soldered to the back of the circuit board which holds the backlights.
On tracing the wiring/circuit, it looks like all the LED indicator bulbs go to a common negative, and this common negative has a resistor soldered in line, and it appears that the resistor has also blown. It’s possible that when the blue wire (the “negative”) detached itself, it could have contacted the 12 volt bus bars, and caused the resistor to blow.
On my panel, the resistor is located between the water tank gauge and the 12 volt cigarette lighter type socket. (see attached picture)

Hoping that someone with a multi test meter could check a couple of things.
With an LED indicator lamp on, check the voltage across the blue and the black wire.
With the DC panel isolated from the battery (service battery switch off), check the resistance across the resistor.
I have asked local Bene dealer if they could request copy of the circuit drawing from Beneteau, they said they would ask, but doubted if Beneteau would oblige
Boat is year 2000 build and French built


Would also think similar panel is fitted to Jeanneau of the same era

Cheers
Nigel

[nigel1]

In case anyone else has similar issue.


It's now sorted. The component I was looking for is not a resistor but a 1 amp pico fuse
https://www.littelfuse.com/products/...ico-fuses.aspx


The LED's are prewired with an inbuilt resistor, and look to be same as these
https://uk.farnell.com/chicago-minia...1mm/dp/2766495