Panasonic KX-MB263RU / KX-MB263UA Service Manual ▷ View online
25
KX-MB263RU/KX-MB263UA
6.5.2.2.
FB (FLAT BED) MOTOR DRIVE CIRCUIT
1. Functions
This motor functions for main operations including FB copy and PC scan.
This motor feeds CIS unit with synchronizing for reading.
This motor feeds CIS unit with synchronizing for reading.
2. Motor operation
During motor driving, pin A8 of IC 300 become low level, then motor driver IC502 is activated.
Stepping pulses are output from IC300 pins A9, B9, C9,A10, B10, and C10, causing driver IC502 pin 3, 7, 9 and 13 to drive
the motor coil.
A 1-step rotation of this motor feeds 0.021mm of CIS unit.
Stepping pulses are output from IC300 pins A9, B9, C9,A10, B10, and C10, causing driver IC502 pin 3, 7, 9 and 13 to drive
the motor coil.
A 1-step rotation of this motor feeds 0.021mm of CIS unit.
3. Circuit Diagram
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KX-MB263RU/KX-MB263UA
6.6.
TIMING CHART AND WAVE FORM OF SCANNER MOTORS
6.6.1.
NORMAL 1-2 PHASE EXCITATION (HALF STEP)
1. Timing chart
2. Wave form
27
KX-MB263RU/KX-MB263UA
6.6.2.
FLAT TORQUE 1-2 PHASE EXCITATION (HALF STEP)
1. Timing chart
2. Wave form
28
KX-MB263RU/KX-MB263UA
6.6.3.
W 1-2 PHASE EXCITATION (QUARTER STEP)
1. Timing chart
2. Wave form
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