Ribbon Motor Drive Circuit; Paper Supply Motor Drive Circuit; Head Motor And Tray Motor Drive Circuit - Sony UP-D2500 Service Manual

4-2-2. Ribbon motor drive circuit
The ribbon motor is driven with PWM by the control signal (active L) from the pin 45 of 1C112.
TO RIBBON MOTOR
CNO14 2PIN
10112 45PiN
CNO14 1PIN
4-2-3. Paper supply motor drive circuit
The paper supply motor is driven with PWM by (active L) from pin 46 of IC112(CPU) and pin 9
of IC115 (parallel port).
TO LOAD MOTOR 1P188
CNO12 1PIN C)
CNO12 2PIN
10112 45P IN
10115 OPIN
4-2-4. Head motor and tray motor drive circuit
nO Rey en pins 42 and 43 of IC115( parallel port) head motor
8 pins 40 and 41 of IC115( parallel port) tray motor
fe Gaede the pins 10 and 13 of IC105 head motor .
pins | and 18 of IC105 tray motor .
The motor is driven by the voltage from Pee on See
pins 4 and 17 tray motor.
The up and down brakes are performed with following assemblies.
UP-D2500(UC,CE) 4-7