Hi,  my alarm system gives a SERVICE" alarm at random times.

If I understand the table correct, it relates to a fuse. The fuses seems to be not that "visible".

On inspection, I found a loose component, and would like to identify that.

Regards.

 

13 minutes ago, Logan said:

That component is a self resetting fuse i believe hut not 100% sure

 

nah,

 

the "fuses" on the board are in the same places a glass fuse would be on the board 

 

marked F2, F3, F4... whatever

 

the ac in & the battery connections don't look factory ?

We don't see the international models much over here.

Are you certain there was a component that came away from the board?

There are often pads spare for all sorts of things, do you actually have a component that fell off.

Meanwhile working out what is causing your "service alarm" from the log maybe useful.

Normally the written phrase "service" on the screen would indicate a service timer, not to be confused with the service light which appears for a number of faults.

I found some bits in the box. And the battery does not charge...

Could it caused by my additional power supplied to the battery.  See attached drawing.

I tried to have some extra backup power supply to the alarm:  Extra 12 V battery, charged by a solar panel charger. I did connect the alarm, to the load connection of the solar charger, with the diode in series.

Close-up view of the damaged area... 

The silver points must be the burnt soldered connection points. 

I think it got very hot...

Hot is an understatement.

Not a good idea to do that.

Going to be a pain to replace as it's surface mount.

1 hour ago, TexuserSA001 said:

Could it caused by my additional power supplied to the battery.  See attached drawing.

I tried to have some extra backup power supply to the alarm:  Extra 12 V battery, charged by a solar panel charger. I did connect the alarm, to the load connection of the solar charger, with the diode in series.

Yep that would have done it, its tried to charge your charging circuit. You should have split the load and used the additional PSU to power the detection and just common up the ov