Toshiba e-studio550 Service Manual page 133

9. 4. Drive Circuit for Tray-up Motor
Cassette tray-up motor (MOT)
Block diagram of TA8428
Thermal shut-
down over-
current protec-
tion circuit
Control logic
1
IN1
IN1 and IN2 are input terminals to receive the signals from the microcomputer. The control logic, based on
the signals from the microcomputer, controls the rotation direction and ON/OFF of the motor.
e-STUDIO550/650/810 PAPER FEEDING SYSTEM
: Driven by IC72 (tray-up motor 1) and IC36 (tray-up motor 2)
(LGC: TA8428)
2 3
IN2 M(+)
Input
IN1 IN2
H H
L H
H L
L L OFF (high impedance) STOP
4 5
GND M(–)
Output
M (+) M (–)
L L BRAKE
L H CW
H L CCW
9 - 10
6 7
N.C. V
CC
Remarks
JUNE 2002 © TOSHIBA TEC