Nikon Coolpix L15 Repair Manual page 20

・Mount the trigger coil on the SB PCB unit, and solder it at two places.
・Solder the wires (Blue and Red) that are connected from the flash unit.
・Mount the flash unit on the SB PCB unit by fitting with the two boss holes.
・Tighten the screw (M1.4×3.0).
Blue
TRIGGER COIL
Boss hole
- A ･Ｌ１５ -
Red
Solder
M1.4×3.0
INC
VMA10003-.R3727.A