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21

KX-MB1500UCB

D06

VDD1.2

-

1.2V

POWER SUPPLY

D07

PIO32

O

3.3V

OPERATION PANEL INTERFACE

D08

CRMPWR

O

3.3V

MOTOR CURRENT CONTROL

D09

PIO56

O

3.3V

NOT USED

D10

VDD1.2

-

1.2V

POWER SUPPLY

D11

PIO48

O

3.3V

NOT USED

D12

PIO44

O

3.3V

DC MOTOR INTERFACE

D13

VDD3.3

-

3.3V

POWER SUPPLY

D14

VDD1.2

-

1.2V

POWER SUPPLY

D15

FRMD5

I/O

3.3V

FLASH MEMORY DATA BUS 5

D16

FRMA1

O

3.3V

FLASH MEMORY ADDRESS BUS 1

D17

VDD3.3

-

3.3V

POWER SUPPLY

D18

FRMA8

O

3.3V

FLASH MEMORY ADDRESS BUS 8

D19

THRMSTR1

I

3.3V

ANALOG INPUT(THERMISTOR)

D20

TONEAVSS

-

GND

GND

D21

FRMA13

O

3.3V

FLASH MEMORY ADDRESS BUS 13

D22

VDD1.2

-

1.2V

POWER SUPPLY

D23

VSS

-

GND

GND

D24

NC

-

-

NOT USED

D25

DOTCLKOUT

O

3.3V

CRYSTAL(20MHz) OUTPUT

D26

PIO66

O

3.3V

NOT USED

E01

SDUDM0

O

3.3V

SDRAM DQMU0

E02

AFEADC7

I

3.3V

SCANNER INTERFACE

E03

AFEADC6

I

3.3V

SCANNER INTERFACE

E04

VSS

-

GND

GND

E23

VDD1.2

-

1.2V

POWER SUPPLY

E24

FRMA24

O

3.3V

FLASH MEMORY ADDRESS BUS 24

E25

PIO65

O

3.3V

NOT USED

E26

PIO64

O

3.3V

NOT USED

F01

SDMD16

I/O

3.3V

SDRAM DATA BUS 16

F02

SDMD17

I/O

3.3V

SDRAM DATA BUS 17

F03

AFESIFCLK

O

3.3V

SCANNER INTERFACE

F04

VDD1.2

-

1.2V

POWER SUPPLY

F23

PIO24

I

3.3V

LSU INTERFACE

F24

PIO61

O

3.3V

OUTPUT PORT(SPMUTE)

F25

PIO60

O

3.3V

NOT USED

F26

PIO3

O

3.3V

LSU INTERFACE

G01

SDMD18

I/O

3.3V

SDRAM DATA BUS 18

G02

SDMD19

I/O

3.3V

SDRAM DATA BUS 19

G03

AFESIFDIN

I

3.3V

SCANNER INTERFACE

G04

AFESIFEN

O

3.3V

SCANNER INTERFACE

G23

PSCIO24

I

3.3V

LSU INTERFACE

G24

PIO2

O

3.3V

LSU INTERFACE

G26

PIO58

O

3.3V

OUTPUT PORT(CIDRLY)

H01

SDMD20

I/O

3.3V

SDRAM DATA BUS 20

H02

SDMD21

I/O

3.3V

SDRAM DATA BUS 21

H03

NSDCS2

O

3.3V

SDRAM CHIP SELECT 2

H04

AFESIFDOUT

O

3.3V

SCANNER INTERFACE

H23

PIO63

O

3.3V

LSU INTERFACE

H24

PIO62

O

3.3V

LSU INTERFACE

H25

PIO28

O

3.3V

NOT USED

H26

PIO21

O

3.3V

LSU INTERFACE

J01

SDMD22

I/O

3.3V

SDRAM DATA BUS 22

J02

SDMD23

I/O

3.3V

SDRAM DATA BUS 23

J03

SDMA3

O

3.3V

SDRAM ADDRESS BUS 3

J04

SDMA2

O

3.3V

SDRAM ADDRESS BUS 2

J23

PIO6

O

3.3V

HIGH VOLTAGE UNIT INTERFACE

J24

PIO27

O

3.3V

NOT USED

J25

PIO5

O

3.3V

HIGH VOLTAGE UNIT INTERFACE

J26

PIO4

O

3.3V

HIGH VOLTAGE UNIT INTERFACE

K01

VSS

-

GND

GND

K02

SDCLK2

O

3.3V

SDRAM CLOCK 2

K03

VSS

-

GND

GND

K04

VDD3.3

-

3.3V

POWER SUPPLY

K23

VDD1.2

-

1.2V

POWER SUPPLY

K24

PIO41

O

3.3V

NOT USED

K25

PIO40

O

3.3V

NOT USED

PIN NO.

PinName

I/O

POWER SUPPLY VOLTAGE

EXPLANATION

22

KX-MB1500UCB

K26

PIO39

O

3.3V

NOT USED

L01

SDMD24

I/O

3.3V

SDRAM DATA BUS 24

L02

SDMD25

I/O

3.3V

SDRAM DATA BUS 25

L03

SDMA1

O

3.3V

SDRAM ADDRESS BUS 1

L04

SDMAÇO

O

3.3V

SDRAM ADDRESS BUS 0

L11

VSS

-

GND

GND

L12

VSS

-

GND

GND

L13

VSS

-

GND

GND

L14

VSS

-

GND

GND

L15

VSS

-

GND

GND

L16

VSS

-

GND

GND

L23

PIO37

I

3.3V

INPUT PORT (RING)

L24

PIO38

O

3.3V

NOT USED

L25

PIO36

O

3.3V

NOT USED

L26

PIO35

O

3.3V

NOT USED

M01

SDMD26

I/O

3.3V

SDRAM DATA BUS 26

M02

SDMD27

I/O

3.3V

SDRAM DATA BUS 27

M03

SDMA10

O

3.3V

SDRAM ADDRESS BUS 10

M04

SDBA1

O

3.3V

SDRAM BANK ADDRESS 1

M11

VSS

-

GND

GND

M12

VSS

-

GND

GND

M13

VSS

-

GND

GND

M14

VSS

-

GND

GND

M15

VSS

-

GND

GND

M16

VSS

-

GND

GND

M23

PIO33

O

3.3V

NOT USED

M24

PIO34

O

3.3V

NOT USED

M25

PIO26

O

3.3V

NOT USED

M26

PIO25

O

3.3V

OUTPUT PORT(CNGMUTE)

N01

SDMD28

I/O

3.3V

SDRAM DATA BUS 28

N02

SDMD29

I/O

3.3V

SDRAM DATA BUS 29

N03

SDBA0

O

3.3V

SDRAM BANK ADDRESS 0

N04

VDD1.2

-

1.2V

POWER SUPPLY

N11

VSS

-

GND

GND

N12

VSS

-

GND

GND

N13

VSS

-

GND

GND

N14

VSS

-

GND

GND

N15

VSS

-

GND

GND

N16

VSS

-

GND

GND

N23

VDD3.3

-

3.3V

POWER SUPPLY

N24

PIO23

O

3.3V

NOT USED

N25

PIO22

O

3.3V

NOT USED

N26

PIO20

O

3.3V

NOT USED

P01

SDMD30

I/O

3.3V

SDRAM DATA BUS 30

P02

SDMD31

I/O

3.3V

SDRAM DATA BUS 31

P03

NSDCS

O

3.3V

SDRAM CHIP SELECT 1

P04

VDD3.3

-

3.3V

POWER SUPPLY

P11

VSS

-

GND

GND

P12

VSS

-

GND

GND

P13

VSS

-

GND

GND

P14

VSS

-

GND

GND

P15

VSS

-

GND

GND

P16

VSS

-

GND

GND

P23

VDD1.2

-

1.2V

POWER SUPPLY

P24

PIO16

I

3.3V

INPUT PORT

P25

PIO17

I

3.3V

INPUT PORT

P26

PIO18

I

3.3V

HIGH VOLTAGE UNIT INTERFACE

R01

SDUDM1

O

3.3V

SDRAM DQMU1

R02

SDLDM0

O

3.3V

SDRAM DQML0

R03

BZVDD33

-

3.3V

POWER SUPPLY

R04

BZRST33

-

3.3V

POWER SUPPLY

R11

VSS

-

GND

GND

R12

VSS

-

GND

GND

R13

VSS

-

GND

GND

R14

VSS

-

GND

GND

R15

VSS

-

GND

GND

R16

VSS

-

GND

GND

PIN NO.

PinName

I/O

POWER SUPPLY VOLTAGE

EXPLANATION

23

KX-MB1500UCB

R23

PIO13

O

3.3V

NOT USED

R24

PIO12

O

3.3V

NOT USED

R25

PIO14

O

3.3V

NOT USED

R26

PIO15

I

3.3V

INPUT PORT

T01

SDMD0

I/O

3.3V

SDRAM DATA BUS 0

T02

SDMD1

I/O

3.3V

SDRAM DATA BUS 1

T03

NSDCAS

O

3.3V

SDRAM CAS

T04

NSDRAS

O

3.3V

SDRAM RAS

T11

VSS

-

GND

GND

T12

VSS

-

GND

GND

T13

VSS

-

GND

GND

T14

VSS

-

GND

GND

T15

VSS

-

GND

GND

T16

VSS

-

GND

GND

T23

PIO9

O

3.3V

OUTPUT PORT(SNPICK)

T24

PIO8

O

3.3V

NOT USED

T25

PIO10

O

3.3V

NOT USED

T26

PIO11

O

3.3V

OUTPUT PORT(SNREG)

U01

SDMD2

I/O

3.3V

SDRAM DATA BUS 2

U02

SDMD3

I/O

3.3V

SDRAM DATA BUS 3

U03

NSDWE

O

3.3V

SDRAM WRITE ENABLE

U04

VDD1.2

-

1.2V

POWER SUPPLY

U23

VDD3.3

-

3.3V

POWER SUPPLY

U24

PIO0

I

3.3V

INPUT PORT (HOOK)

U25

PIO1

O

3.3V

OUTPUT PORT(EXTRLY)

U26

PIO7

O

3.3V

NOT USED

V01

SDMD4

I/O

3.3V

SDRAM DATA BUS 4

V02

SDMD5

I/O

3.3V

SDRAM DATA BUS 5

V03

SDCKE

O

3.3V

SDRAM CLOCK ENABLE

V04

SDMA12

O

3.3V

SDRAM ADDRESS BUS 12

V23

PSCIO20

I

3.3V

INPUT PORT (CIS HOME)

V24

PSCIO21

O

3.3V

NOT USED

V25

PSCIO22

O

3.3V

NOT USED

V26

PSCIO23

O

3.3V

NOT USED

W01

SDMD6

I/O

3.3V

SDRAM DATA BUS 6

W02

SDMD7

I/O

3.3V

SDRAM DATA BUS 7

W03

SDMA11

O

3.3V

SDRAM ADDRESS BUS 11

W04

SDMA9

O

3.3V

SDRAM ADDRESS BUS 9

W23

PSCIO16

O

3.3V

NOT USED

W24

PSCIO17

I

3.3V

INPUT PORT (FANDET2)

W25

PSCIO18

I

3.3V

INPUT PORT (TOPCVR)

W26

PSCIO19

I

3.3V

INPUT PORT (PSTART)

Y01

VSS

-

GND

GND

Y02

SDCLK

O

3.3V

SDRAM CLOCK 1

Y03

SDMA8

O

3.3V

SDRAM ADDRESS BUS 8

Y04

VSS

-

GND

GND

Y23

AFESEL0

I

3.3V

NCU INTERFACE

Y24

AFESEL1

I

3.3V

NCU INTERFACE

Y25

EXMDMCS

O

3.3V

NOT USED

Y26

DP

O

3.3V

NCU INTERFACE

PIN NO.

PinName

I/O

POWER SUPPLY VOLTAGE

EXPLANATION

24

KX-MB1500UCB

The scanning block of this device consists of a control circuit and a CIS (contact image sensor), and AFE(Analog Front End) include
A/D Converter.

When an original document is inserted and the start button pressed, pin A3 of IC300 goes to a low level and the transistor Q518
turns on.
This applies voltage to the CIS. The CIS is driven by each of the signals (CCDSH, CCDCLK, Resolution) output from IC300.
The original image illuminated by the LED to output an analog image signal.
The analog image signal is input to the AFE on VINP(20pin of IC503) and converted into 16-bit data by the A/D converter inside
IC503. Then this signal undergoes digital processing in order to obtain a high-quality image.