Samsung ML-7300N Block Diagram

Samsung Electronics 8-1

08- Bloack Diagrams

8-1 WIRING DIAGRAM

MP

CLUTCH

PTL

MP

SENSOR

TONER

SENSOR

1

2

123

123

1

2

12123

123

OPTION

SCF

MOTOR

PICK-UP

CLUTCH

CASSETTE

SENSOR

DCU

123

4

123

4

123

4

123

4

123

4

1

2

1234567

8

1234567

8

24VS2

5V

MP-SENSOR

DGND

5VS

TONER

AGND

CN502

CN504

CN505

CN506

CN503

CN501

JOINT

BOARD

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2143658

7109

121114131615181720

19

5V

AGND

24VS2

STS-SCF

CMD-SCF

OPT-CLK

SCF-READY

DGND

A/AB

/B

24V

CAST1

CAST2

CAST3

DGND

CN2

CN3

CN5

CN4

SCF

BOARD

CN1

5V

DATA

CLK

DGND

LCD

CN10

PANEL

CN2

CN1

123456789

10

10

987654321

5V

DGND

LCD_D7

LCD_D6

LCD_R_S

LCD_D5

LCD_D4

LCD_E

2143658

7109

121114131615181720

19

123456789

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LCD-E

5V

LED1

LED2

LCD_D4

LCD_D5

LCD_D6

LCD_D7

LCD_R9

LCD_DRV E

P_SW1

P_SW2

P_SW3

P_SW4

P_SW5

P_SW6

P_SW8

P_SW7

DGND

DGND

J1

J11

Video

Controller

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2143658

7109

1211141316151817201922212423262528

27

DGND

/EBSY

/EXITPAP

/EMSG

/PRINT

/CCLK

CPRDY

/VDI

/READY

/PSYNC

NC

/HSYNC

/CMSG

5V

5V

5V

5V

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

5V5V5V

CN6

CN7

CN5

ENGINE BOARD

CN4

CN8

CN3

CN2

CN1

CN10

CN9

5V

5V

MP-SOLENOID

5V

PTL

5Vs

SCF-READY

24VS2

STS-SCF

24VS2

MP-SENSOR

A-GND

TONER

A-GND

CMD-SCF

D-GND

OPT-CLK

D-GND

Thermister_2

Reserve

TP1

TP2

TP3

TP4

TP5

123

4

123

4

123456789

10111213141516

2143658

7109

1211141316

15

OPC-GND

THV

DOC. BLADE

DEV.

MHV

TRANSFER ROLLER

DEV.

DCU

5V

DCU DATA

DCU _CLK

D-GND

SMPS

24VS2

FUSERON

A-GND

5Vs

A-GND

5V

A-GND

5V

D-GND

5V

D-GND

D-GND

24VS1

24VS1

24VS1

24VS1

123

4

123

4

1

2

1

2

1

2

1

2

123

123

12345

6

12345

6

123456789

101112131415161718

CN5

1

2

1

2

1

2

1

2

123

123

123

123

COVER SW

(5V)

COVER SW

(24V)

FUSER

INLET

(AC IN)

CN4

CN2

CN1

CN3

5V

5Vs

24V

24VS1

CASSETTE

SENSOR

Thermister

DUPLEX

SOLENOID

FAN

MAIN

MOTOR

LSU

STACKER

SENSOR

DEV.

SENSOR

12345

6

12345

123

123

CAST-SENS1

CAST-SENS2

CAST-SENS3

D-GND

24VS2

24VS2

/A

24VS2

A

/B

24VS2

B

7 N.C

D-GND

VDO

LDON

D-GND

5VS

HSYNC

LSU CLK

LREADY

PMOTOR

A-GND

24VS2

DGND

STACKER

DGND

KEY-DEV

Samsung Electronics8-2

8-2 Engine Controller Block Diagram

ML7300 ENGINE BLOCK DIAGRAM

SENSOR

- Cassette

- Pempty

- Exit

- Feed

- Toner

- Cover

- Duplex

- Scf-status

- Scf-ready

PROGRAM

MEMORY

(27C256)

74HC245

74HC245

2nd cassette

Feeder

(option)

VIDEO

CONTROLLER

CPU

(KS88C4316)

12MHZ

ADC

PWM

ADC

Thermister

value

HVPS control

- THV

- DOCTOR BLADE

- DEV. BIAS

- MHV

STEP MOTOR

DRIVER

(SLA7026M)

SOLENOID DRIVE

- PICK-UP CLUTCH

- MP CLUTCH

- DUPLEX

FUSER CONTROL

PTL

FAN

LSU

A0 - A15

D0 - D7