Panasonic KX-MB3030RU / KX-FAP106A7 Service Manual ▷ View online
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KX-MB3030RU
6.8.7.
Waveform
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KX-MB3030RU
6.9.
Solenoid and clutch Driver Section
The solenoid and clutch drive circuit controls Resist Clutch, Pick solenoid, ADU solenoid, and ADF solenoids.
These solenoids and clutch are designed to be driven 24V.
The diodes protect transistors from reverse generated voltage when solenoids are turned off.
The diodes protect transistors from reverse generated voltage when solenoids are turned off.
6.9.1.
Circuit Diagram
6.9.2.
Active Logic
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KX-MB3030RU
6.10. LSU (Laser Scanning Unit) Section
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KX-MB3030RU
USB (Universal Serial Bus) block
Description
This is a USB block for data communication with PC.
Two signal lines (D+/D-) are differential signals which work in reverse phase.
This is a USB block for data communication with PC.
Two signal lines (D+/D-) are differential signals which work in reverse phase.
VBUS: CN301 1pin
D+: CN301 3pin
D-: CN301 2pin
GND: CN301 4pin
D+: CN301 3pin
D-: CN301 2pin
GND: CN301 4pin
Circuit Diagram
Sequence of normal operation
When USB cable from PC is connected to CN301, VBUS voltage goes up to 5V, and IC300 recognizes the connection with PC.
Then D+ becomes about 3V : waveform (1)-1
The D+ becomes 0V, then communication between IC300 and PC is started : waveform (2)-1
When a few seconds elapsed after USB cable was inserted into CN301 ,the unit enters stand-by mode.
When PC is at Hi-Speed , waveforms are (1)-1 ~ (1)-4.
When PC is at Full Speed ,waveforms are (2)-1 ~ (2)-4.
When USB cable from PC is connected to CN301, VBUS voltage goes up to 5V, and IC300 recognizes the connection with PC.
Then D+ becomes about 3V : waveform (1)-1
The D+ becomes 0V, then communication between IC300 and PC is started : waveform (2)-1
When a few seconds elapsed after USB cable was inserted into CN301 ,the unit enters stand-by mode.
When PC is at Hi-Speed , waveforms are (1)-1 ~ (1)-4.
When PC is at Full Speed ,waveforms are (2)-1 ~ (2)-4.
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