MV Agusta Brutale Oro-S Workshop Manual page 167

In the preceding diagram is illustrated the complete charging circuit. The input circuit of the regulator includes the
integrated M-IC that, being complex in its various functions will be simply indicated as M-IC.
(1) Ignition switch "ON" with engine off.
Stator coil
Rotor coil
The M-IC reveals the battery voltage applied to the IG terminal and activates Tr1. The initial current passes via
the rotor coil (to reduce the battery charge to the minimum when it is in this condition), Tr1 passes from "ON" to
"OFF" intermittently thereby reducing the absorption of the system to 0.17A.
During this period the generator is not functioning and does not generate any voltage. The voltage at point P is
0V and M-IC revealing this value, activates Tr3 which switches on the warning light.
Electrical system
B
F
Tr1
P
F
E
IC Regulator
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IG
S
R
L
M.IC
Tr3
B
Ignition
Switch
IG
S
Charge
L
Lamp
E