Panasonic KX-MB2061CXB Service Manual page 46

KX-MB2061CXB/KX-MB2061CX2/KX-MB2062CXB
<Stop operation>
In order to stop the motor rotation, following 2 signals are supplied from IC300.
1. SS signal (Output pin: Pin B12/Output Signal: "L")
When this signal is inverted by transistor Q502 and becomes "H", motor recognize this signal as "stop" signal.
2. Brake signal (Output pin: Pin C12/Output Signal: "L")
When this signal is inverted by transistor Q526 and becomes "H", motor recognize this signal as "brake on" signal.
Timing Chart of Stop operation
6.9.1.1. Engine Motor Drive Circuit
6.9.2. Scanner Motor Drive Circuit
General
Scanner motor drive circuit is consist of motor current control circuit ,FB (Flat Bed) motor driver, ADF (Auto Document Feeder:
equipped model only) motor driver and OCP (Over Current Protection) circuit.
6.9.2.1. Motor current control circuit
1. Circuit explanation
According to the scan speed, each motor current is controlled for appropriate value.
When scan speed is low, motor current is reduced to prevent the vibration during motor rotation.
When scan speed is high, motor needs much driving force. so much current should be supplied.
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