Panasonic UF-E1 Service Manual page 141

6.2.5. Sensor Motor Driver
Gear
sensor
Motor
Operational Description
The sensor motor driver (IC1) for the driving mechanisms is installed on the SC board and is driven by bi-
polar constant current. The phase signal that drives the motor driver is generated by ASIC (DZAC000263).
The gear position sensor for ASF roller position detection is signal input to the 2AE7-0001 (IC18) through
NCU board. The ASF B-point sensor is directly installed on the NCU board and optically detected when the
photo-interpreter activates the actuator.
NCU SC
ASF B point
sensor
Motor
Driver
IC1
2AE7-0001
IC18
DZAC000263
ASIC
IC3
137
UF-E1