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Circuit diagram
Fig. 28
Motor control unit
Terminal
Stator
Main switch
Switch unit B 
Switch unit A (for rotation
reverse)
(for Trigger)
Controller
Buzzer circuit
Color index of lead wires' sheath
Black
White
Red
Yellow
Orange
Blue
= Tape
= Connector
LED PWB
(for display)
Switch unit C
(for clutch)
LED
circuit
(for job
