Schematic for Bossh BC004 Drill Battery Charger
 

I've googled for this and was
unsuccessful. Anyone know of a
schematic for this thing. I
accidentally dropped my BC004 charger
and now it is dead. Opening it, I found
a large toroidal inductor pulled off the
board. After repair, the unit still
didn't work. I noticed a 1/2 watt
resistor in the middle of the board that
was obviously cooked. The color code
was also cooked, so I couldn't
positively identify the value. The
resistor was open. Anybody have a
schematic?
Thank,
Art