Satellite J11 repair

PC itself looks working fine using external monitor through VGA connector.

So the backlight of LCD suddenly died.

But intermittently LCD backlight comes back....

Then, I dis-assembled ....

Finally I touched the LCD backlight inverter, after I disassemble the whole PC. When I removed the plastic tube around the PCB assembly, the Yellow (surface mounted) transformer fell out. Solder surface looked rust out.

Resoldering could come back the LCD back light though....