Hello. I have disassemble a large printer. Have a lot of fun things haha!

I find this 2 lamps.



Both of them have anti-creepage slotting of the PCB, so the output has to be over 1.000 volts.





The bigger one is from the scanner. It gives green light (And possibly UV, so I´m being careful). It is supposed to run with 12V DC. Have 3 connections, ground, + and the middle goes with ground to star the inverter. But I apply 12DCV and nothing happens. If I connect an Ammeter there is no current.





About the smaller one, I don´t know anything, except is for retro-illuminate the screen

Any ideas?

Thank you

Kind regards.

 

and the middle goes with ground to star the inverter.

What does that mean?
That T1A 250 is a ceramic fuse on the the larger board, it might be open explaining the no current.
The smaller board also has a fuse, the green component to the right of connector CN8 (750ma. 125V.F)

 

They are Inverters for CFL lights, they give out High voltage AC to the lamp, one of them is variable.

 

Thanks for your anwers.

The fuses are OK, I have checked them.

The coment about the third conectios is because I have read here

http://everist.org/NobLog/20140702_green_glow.htm