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65

CN26-2  US OUT

CN14-1 US-AMP OUT

66

(LITON)

(for Front side)

3.3V_CIS_F

7V_SLP

LEDr

LEDg
LEDb

Constant 

Current 

Circuit

DAC   

MOT2_VREF

US_GAIN

LED_B_DAB
LED_B_DAG
LED_B_DAR

LED_F_DAB
LED_F_DAG
LED_F_DAR

-
-
-

AO1
AD2
AO3
AO4
AO5
AO6
AO7
AO8
A09
A10
A11

SPI FLASH 16MByte 

12Ch

CLK

DI

LD

CS*

SCLK

SI/SIO0

SO/SIO1

WP # /SIO2

Reset #/ SIO3

ADC

Motor 2

SPI_Flash

TG

TG

LED_F_DAR
LED_F_DAG
LED_F_DAB

LED_B_DAR
LED_B_DAG
LED_B_DAB

UART

(Ch BU)

I/F

PLL

RESET

GPIO

PF4

RESET IC

20 MHz

CISCLK_F

CISSP_F

VREF

SCLKI

SCLKO

NSYSRST

IN1
IN2
IN3

IN4
IN5
IN6

MCLK _F

TGSYNC_F

LVDS_F

SEN_F
SCK_F

SDO_F

SDI_F

VRLC

USB3.1D

I/F

Panel

KEY

· Power
· Start/Stop

· One push 1
· One push 2
· One push 3

· Ready
· Error

· Skip

LED

DAC

PSNIO

Motor Drive

M

Conveyor Motor

DSLCT[1:0]

00

SPICS_A

SPICLK_A

SPIRD_A
SPIWD_A

LEDR0

LEDG0
LEDB0

LEDR1
LEDG1
LEDB1

LVDS_F

ST0

LVDS

Input

NCCLK0

NCCLK1

ST1

CCLK0

TG0

SPI

Enable

MS1
MS2

DIR

RESET

MTCLK2

MOT 2_VREF

Reduce Motor Current
at door open

CIS(F)

REF

Motor 1

GPIO

GPIO

PSN IO

Function3

Double Feed

(Generate)

Double Feed

(Receive)

US_IN

US_CLK

Document
Sensor

Start
Sensor

START

PAPER

DEBUG CONNECTOR

(PF4)

RXD
TXD

Identification of Model
Control Board  Revision
(Pull Up or Pull Down)

MODEL_NAME 3
MODEL_NAME 2
MODEL_NAME 1
MODEL_NAME 0

BDREV1
BDREV0

US_GAIN

USB3.1

Connector

VBUS

Door
Sensor

DOOR

Auto/Manual
Sensor

Auto/

Manual

128MByte

1Gbit

16bit bus

DDR3-1333

JS_CLK0

DA0_CLK

DA0_DOUT

DA0_LD

START/STOP
SKIP
ONE PUSH 1
ONE PUSH 2
ONE PUSH 3

START/STOP

SKIP

ONE PUSH 1
ONE PUSH 2
ONE PUSH 3

EX INT

IN1DATA7

IN1DATA5

IN1DATA4

IN1DATA6

IN3DATA0

ADC0

UART

(Ch UD)

DEBUG CONNECTOR

(ARM)

RXD
TXD

DEBUG CONNECTOR

(Internal Processor)

UART

(Ch0 )

DEBUG CONNECTOR

(JTAG ICE)

IRXD0
ITXD0
IRXD1
ITXD1
IRXD2
ITXD2

nTREST

TDI
TMS
TCK
TDO

RESERn

JTAG

ICE

BURXD_M

BUTXD_M

UDRXD_M
UDTXD_M

IRXD0_M
ITXD0_M

IRXD1_M

ITXD1_M

IRXD2_M

ITXD2_M

TRSTIN_0

TDI

_0

TMS

_0

TCK

_0

TDO

_0

EXTbus

Watch dog

PWM

FAN

Power
Control

CIS_POWER

Power_CNT

GPIO_AP03

FANPWM

SDRAM

EXTADR[15:0]
EXTDATA[15:0]

CS, RAS, CAS, WE, CLK, 
CKE, DQXL, DQXH

BSPICS

BSPICLK

BSPID0
BSPID1
BSPID2
BSPID3

Output 3.3V

GPIO_DP03

CIS_PWR

watchdog

treset circuit

GPIO

GPIO_AP02

WDT_RST

12V

GPIO

IN3DATA

3

IN3DATA

4

IN3DATA

5

IN3DATA

6

IN3DATA

7

IN3DATA

8

Sysmode

SYSMODE1_M

SYSMODE0_M

3.3V_SLP

3.3V_CIS_F

_CIS_F

3.3V

16V_MOT

3.3V_SLP

16V_SLP

3.3V

3.3V

3.3V

1.5V

16V_SLP

16V_SLP

GPIO2_039
GPIO2_038
GPIO2_037

GPIO2_036
GPIO2_035

Master Mode

JTAG_RST

JTAG_RST

3.3V_CIS_B

3.3V_SLP

3.3V_SLP

3.3V_SLP

3.3V_SLP

Level

Shifter

Power_SW

ATT_ON

POWER _SW_SOC

LED_GREEN
LED_RED

LED_GREEN

LED_RED

GPIO

GPIO

LEDr 2

LEDg 2
LEDb 2

Constant 

Current 

Circuit

Constant 

Current 

Circuit

Constant 

Current 

Circuit

(LITON)

(for Back side) 

3.3V_CIS_F

7V_SLP

LEDr

LEDg
LEDb

CISCLK_F

CISSP_F

VREF

CIS(B)

LEDr 2

LEDg 2
LEDb 2

IC9

IC1

IC4

IC6

IC20

IC11

IC15

IC18

DDR3

67

Main control block of this system is CPU built in PF4-ASIC (IC9).
The CPU controls following devices and realizes the document scanning operation.
• Front & Back CIS (Contact Image Sensor)
• Conveyor Motor
• Sensor (Paper, Starting, Door, Auto/Manual select, Double Feed Detect sensor)
• Panel (LEDs, Switch)

(Paper Feeding)

The PF4 (IC9) provides the Motor Driver (IC20) with some motor-pulse signals and drives the Conveyor Motor to execute scanning 
documents. 

(Image Processing)
1. Both the CISs are driven by CIS Transfer Gate pulse and CIS Transfer Gate Clock from the PF4 (IC9).
2. As the result of this, the image analog signals are output from each CIS respectively.
3. The analog signals are converted to digital signals by AFE (Analog Front End, IC1).

KV-S1037 has 3 analog outputs from each CIS. They are converted by one AFE (IC1).

4. The converted digital signals are stored in the DDR3 Memory temporarily by the PF4 (IC9).
5. According to the scanning conditions from the computer, DSP in the PF4 (IC9) performs following image processing.

• Shading correction.
• Color conversion. (Only applied to color image data)
• JPEG compression data generation by using DDR3 Memory (IC15).

6. After handling the above process, the PF4 (IC9) stores the data into the DDR3 Memory (IC15).
7. The USB Controller in the PF4 (IC9) transfers the processed data from DDR3 Memory to the computer via the USB interface 

circuit.

68

CIS(F)

CIS(B)

USB3.1

JK3

CONTROL Board

CN19

CN14

CN1

Board

CN26

Wiring diagram

Contact Image Sensor

Contact Image Sensor

To PC

CN3

CN950

ULTRASONIC SENSOR (R)

Board

PAPER 

SENSOR

Board

CN2004

PANEL Board

Conveyor Motor

CN30

KV- S1037

C

N

2001

CN12

DOOR

DETECTION

Board

STARTING

SENSOR

Board

CN2003

CN2005

DC16V

JK1

CN2

2

FAN

AC Adaptor

CN2002

Sensor-A

Sensor-B

Sensor-C

Sensor-D

Sensor-E

ULTRASONIC SENSOR (G)