LCD driver problem

[Pysifr]

My Moderately expensive 36 LCD ceiling light has died - with a "pop" as it was switched on. The light is no longer made but on contacting the manufacturer and explaining that it went "pop" after a couple of years instead of the 20+ advertised, they sent me their last two 36 LCD  plates. When I took the light to pieces, I discovered that there is no DC power from the LCD driver. In my setup there is a small white box (about 2.5 cm long  by 2 cm square) in the 240 volt mains supply to the driver,  with no indication what it does. My issue is that the drivers I see for sale are just that "drivers" - even the identical driver has no such box attached.
What is this small electronic device doing, and how can I test to see if this is the problem?

I  have attached photos. 

Many thanks

 

Ian

[ProDave]

That box is some form of EMC filter.  It does nothing to the voltage. So just replace the driver with one that does not have it. Hopefully the new one will have all the EMC filtering it needs built in.

[joth]

Welcome!

Pretty sure you mean LED not LCD light :-)