Sym MB10A7-A series Service Manual page 190

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Charging circuit
Blue
White
Brown
Green
License
light
Headlight
Regulator rectifier inspection
Remove the right side cover.
Disconnect the regulator rectifier 4 pin coupler
and inspect the wire circuit.
Wire harness circuit inspection
Item (wire color)
Battery (red) / frame
grounding
Earth (green) / frame
grounding
Charge coil (white) / earth
(green)
Lamp coil (yellow) / earth
(green)
To this chapter contents
Light switch
Green /
Pink
Black
Taillight
Judgment
Battery voltage
Close circuit
Close circuit with
resistance
Close circuit with
resistance
12. Electrical System
Black
Regulator
rectifier
Red
Yellow
Green
白
ACG
Yellow
Green
Main switch
Green
Battery
Regulator rectifier coupler
Red
White
12-9