Read Panasonic KX-MB2571RU Service Manual online
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KX-MB2571RU
6.2.
General Block Diagram
MAIN Board
SOC (IC300)
This custom IC is used for general MFP operations.
ROM (IC301) (32MB)
This FLASH ROM contains all of the program instructions on the unit operations.
And support the backup of user setting and FAX receive data.
And support the backup of user setting and FAX receive data.
DDR3 Synchronous Dynamic RAM (IC404/IC405)
This 6Gbit SDRAMs is used for CPU work and receiving memory and page memory.
POWER SUPPLY
DC-DC converters generate 5V/3.3V/1.5V and 1.0V for system power.
Regulator generates 5V for system power and 0.75V for DDR3 3.3V for CIS power.
Regulator generates 5V for system power and 0.75V for DDR3 3.3V for CIS power.
TEL/FAX I/F
Composed of ITS circuit and NCU circuit.
2 ICs called DAA (Direct Access Arrangement) control Telephone line, Speaker and MIC.
2 ICs called DAA (Direct Access Arrangement) control Telephone line, Speaker and MIC.
READ Section
CIS Unit to read transmitted documents.
Scan data is converted by AFE(IC700).
Scan data is converted by AFE(IC700).
Motor
This model has 2 stepping motors and one DC motor.
IC701 drives the stepping motors for CIS carriage and Auto Document Feeder.
Main Motor is a DC motor.
IC701 drives the stepping motors for CIS carriage and Auto Document Feeder.
Main Motor is a DC motor.
LSU
Forms the images on the OPC DRUM by rotating polygon motor and reflecting the laser beam against polygon.
Sensors
This model has 2 switch and 13 sensors.
Low Voltage Power Supply Board (SMPS Board)
Supplies +24V and +12V to the Main unit and controls the Heat Lamp.
High Voltage Power Supply Board (HVPS Board)
Supplies bias need for the printing operation: bias of the DRUM, Developing and Transcription.
Fuser Unit
Composed heat lamp, thermistor and thermostats.
1)
CPU
Cortex A8 operating at 500MHz.
2)
SDRAM Controller
Controls DDR3 SDRAM Memory.
3)
USB Controller with PHY
ch1:USB device (Apply to USB2.0HS)
ch2:USB host (WiFi controller)
ch3:USB host (USB memory)
ch2:USB host (WiFi controller)
ch3:USB host (USB memory)
4)
Scanner I/F
Controls the CIS and AFE, and process the scan images.
5)
LSU I/F
Controls the polygon motor and outputs the VIDEO signal to LSU.
6)
MOTOR I/F
Controls DC motor and Stepping motor.
7)
FAN I/F
Controls FAN MOTOR and detect the rotation of FAN MOTOR.
8)
OPERATION PANEL I/F
Serial interface with Operation Panel.
9)
SENSOR I/F
Detects the sensor signal.
10) I/O PORT
I/O Port Interface.
11)
A/D, D/A converter
Sends beep tones, etc.
Convert the analog signal to the digital signal.
Convert the analog signal to the digital signal.
12) RTC
Real time clock.
13) MODEM
Performs the modulation and the demodulation for FAX communication.
14) Analog Front End I/F
Controls the DAA device for TEL/FAX function.
15) LAN Controller
Ethernet control.
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