Head And Motor Power Supply On/Off Circuit - Brother TD-4000 Service Manual

2.3.3

Head and Motor Power Supply ON/OFF Circuit

Turning the CPU status of 91pin (VHON) to High, Q2 turns ON, V
supply) turns ON and consequently the head and motor is energized.
Turning the CPU status of 91pin (VHON) to Low, Q2 turns OFF, V
supply) turns OFF and consequently the head and motor power supply is cut off.
Figure 2.3-4 Head and Motor Power Supply ON/OFF Circuit
II - 13
(25V power
H
(25V power
H