Drive Circuit of Tray-up Motor, IN1 IN2 | Toshiba 353, 452, 453, 350

9.3 Drive Circuit of Tray-up Motor

The tray-up motor (T-UP-MTR) is driven by the LGC board IC1 (LGC: TA8428). The block diagram of TA8428 is shown below.

Thermal shutdown over-current protecton crcut

Control logc

	2	3	4	5		7
IN	IN2	M(+)	GND	M(-)	N.C.	VCC
			Fig. 9-301

IN1 and IN2 are input terminals to receive the signals from the tray-up motor. The control logic based on the signals from the tray-up motor, controls ON/OFF of the rotation direction.

	Input		Output		State

IN1		IN2	M (+)	M (–)

H		H	L	L	Brake

L		H	L	H	CCW

H		L	H	L	CW

			OFF
L		L	(high im-		Stop
			pedance)

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	PAPER FEEDING SYSTEM

350, 353, 453, 452 specifications

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Toshiba 353, 452, 453, 350 service manual Drive Circuit of Tray-up Motor, IN1 IN2

Models: 350 353 453 452

9.3 Drive Circuit of Tray-up Motor

IN2

GND

VCC

IN1

IN2

OFF

Stop

PAPER FEEDING SYSTEM

350, 353, 453, 452 specifications