Panasonic KX-MB763RU (serv.man5) Service Manual ▷ View online
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KX-MB763RU-B
6.8.
TIMING CHART AND WAVE FORM OF SCANNER MOTORS
6.8.1.
NORMAL 1-2 PHASE EXCITATION (HALF STEP)
1. Timing chart
2. Wave form
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KX-MB763RU-B
6.8.2.
FLAT TORQUE 1-2 PHASE EXCITATION (HALF STEP)
1. Timing chart
2. Wave form
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KX-MB763RU-B
6.8.3.
W 1-2 PHASE EXCITATION (QUARTER STEP)
1. Timing chart
2. Wave form
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KX-MB763RU-B
6.8.4.
DRIVE MODE OF FB AND ADF MOTOR
Correspondent table of operation
6.9.
FAN MOTOR SECTION
These FAN are used to radiate the heat inside of the unit.
6.9.1.
LEFT SIDE FAN (FAN1)
When the output of pin A11 of IC300 becomes high level or pulse, Left side FAN (FAN1) is activated.
During the FAN rotation, the pulse signal is output from pin 2 of FAN1 and input to pin AC20 of IC300.
When this pulse is stopped, it is judged that FAN error occurred.
During the FAN rotation, the pulse signal is output from pin 2 of FAN1 and input to pin AC20 of IC300.
When this pulse is stopped, it is judged that FAN error occurred.
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