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7.2. GENERAL BLOCK DIAGRAM
The following is an outline of each device IC on the digital board. (Refer to GENERAL BLOCK DIAGRAM(P.120).).
1. ASIC (IC501)
Composed mainly of an address decoder and a modem control.
Controls the general FAX operations.
Controls the operation panel I/F.
Controls the thermal head I/F and CIS I/F.
Performs the image processing.
CPU and Real time clock
2. Flash ROM (IC523)
Contains all of the program instructions on the unit operations.
This memory is used mainly for the parameter working in the storage area.
3. Dynamic RAM (IC503)
This memory is used mainly for the parameter working in the storage area.
4. MODEM (IC505)
Performs the modulation and the demodulation for FAX communication.
5. Read Section
CIS image sensor to read transmitted documents.
6. Motor Driver (IC508 and IC510)
Drives the transmission motor and the reception motor.
7. Thermal Head
Contains heat-emitting elements for dot matrix image printing.
8. Analog Board
Composed of ITS circuit and NCU circuit.
9. Sensor Section
Composed of a cover open and film detection switch, a document set switch, a document top switch, a paper top sensor.
10. Power Supply Board Switching Section
Supplies +5V and +24V to the unit.
11. Flash Memory (IC522)
This memory is used for voice prompt.
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KX-FP363RU
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