Toshiba e-STUDIO 200L Service Manual page 218

The block diagram of TA8428 and the operation of the control logic are shown below.
Thermal shutdown
over-current
protection circuit
Control logic
1
IN1
Input
IN1 IN2
H H
L H
H L
L L
e-STUDIO200L/202L/230/232/280/282 PAPER FEEDING SYSTEM
2 3
IN2 M(+) GND
Fig.9-8
Output
M (+) M (-)
L L
L H
H L
OFF
(High impedance)
9 - 12
4 5 6
M(-) N.C.
State
Brake
CCW
CW
Stop
7
VCC
June 2004 © TOSHIBA TEC