Canon-Canoscan D-1230 Service Manual

COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

MARCH 2001 JY8-1319-000

REVISION 0

SERVICEMANUAL

SERIES


COPYRIGHT © 2001 CANON INC.

Printed in JapanImprimè au Japon

Use of this manual should be strictly supervised

to avoid disclosure of confidential information.


CanoScan D1230U 6683A001AA AZQ000000-6683A003AA DZQ000000-6683A004AA EZQ000000-6683A005AA FZQ000000-6683A006AA LZQ000000-6683A007AA JZQ000000-

CanoScan D1230UF 6684A002AA CZR000000-6684A003AA DZR000000-6684A004AA EZR000000-6684A008AA MZR000000-6684A009AA KZR000000-6684A010AA LZR000000-

FAU-S12 6687A001AA AZS000000-6687A002AA BZS000000-

CanoScan D2400U 6785A001AA AZT000000-6685A002AA DZT000000-6685A003AA EZT000000-

CanoScan D2400UF 6685A001AA AZU000000-6685A002AA CZU000000-6685A003AA DZU000000-6685A004AA EZU000000-6685A005AA FZU000000-6685A006AA LZU000000-6685A007AA JZU000000-6685A008AA MZU000000-

FAU-S13 6774A001AA AZV000000-6774A002AA BZV000000-

Serial Number List


CONTENTS

I. SPECIFICATIONS ...........................1-1

II. PARTS CONFIGURATION...............1-5

A. Front View ...............................1-5

B. Rear View .................................1-5

C. FAU Front View .......................1-6

D. FAU Rear View .........................1-6

CHAPTER 2 : OPERATION AND TIMING

CHAPTER 1 : GENERAL DESCRIPTIONS

I. BASIC OPERATION ........................2-1

A. Functions.................................2-1

B. Electrical System .....................2-2

C. Main PCB Input and Output ...2-4

D. Document Scanning

Sequence ................................. 2-6

II. OPTICAL SYSTEM .......................... 2-7

A. Outline ..................................... 2-7

B. Lamp Lighting Circuit .............. 2-8

C. FARE (Film Automatic Retouch-

ing and Enhancement) ..........2-10

D. Motor Control Circuit ............ 2-12

III. IMAGE PROCESSING .................... 2-13

A. Outline ................................... 2-13

B. Image Processing ................... 2-13

IV. CONTROL SYSTEM ...................... 2-20

A. Control System Diagram ........ 2-20

B. Main PCB ............................... 2-20

V. INTERFACE ................................... 2-21

A. Outline of USB Standard ........ 2-21

B. Benefits of USB Scanner ........ 2-21

C. Signal Definitions .................. 2-22

D. Interface Connection ............. 2-22

VI. POWER SUPPLY ........................... 2-23

III. SETTING UP THE SCANNER .........1-7

A. Precautions ..............................1-7

B. Unlocking the Carriage Lock ...1-8

C. Connecting the Cables.............1-9

D. Scanning a Document ........... 1-10

E. Connecting FAU.....................1-11

IV. CUSTOMER’S DAILY

MAINTENANCE ....................... 1-14

CHAPTER 3 : MECHANICAL SYSTEM

I. PARTS REPLACEMENT ..................3-1

A. Precautions ..............................3-1

II. EXTERNALS ...................................3-2

A. Removing the Document

Cover ........................................ 3-2

B. Removing the Top Cover and

Document Glass ....................... 3-3

III. PCBs ............................................... 3-4

A. Removing the Main PCB........... 3-4

B. Removing the Button PCB ....... 3-6

IV. OPTICAL SYSTEM .......................... 3-9

A. Removing the Scanning Unit ... 3-9

B. Removing the Drive Motor ..... 3-15

C. Attaching the Drive Motor ..... 3-17


I. INTRODUCTION .............................5-1

A. Initial Check ............................5-1

B. Others ......................................5-1

II. TROUBLESHOOTING

FLOWCHART .................................. 5-2

A. Power LED Failure ................... 5-2

B. Communication Failure ........... 5-3

III. PROBLEM, CAUSE AND

CORRECTIVE ACTION ...................5-4

A. Power LED Not Lighting ..........5-4


C. Scanning Unit Movement

Failure ...................................... 5-5

D. Poor Image Quality ................... 5-5

E. Acoustic Noise ......................... 5-5

IV. CANON SCANNER TEST.................. 5-6

A. Outline ..................................... 5-6

B. Operating Environment ........... 5-6

C. Functions ................................ 5-7

D. Functions Descriptions ........... 5-8

E. Error Message ........................ 5-16

CHAPTER 5 : TROUBLESHOOTING

CHAPTER 4 : MAINTENANCE AND SERVICING

I. PERIODICAL REPLACEMENT

PARTS ............................................4-1

II. CONSUMABLE PARTS

DURABILITY ...................................4-1

III. PERIODICAL SERVICING ..............4-1

IV. SPECIAL TOOLS ............................4-1

V. SOLVENTS AND LUBRICANTS ......4-1

CHAPTER 6 : PARTS CATALOG

FIGURE 001 ...................................6-2

FIGURE 100 ...................................6-4

FIGURE 200 ...................................6-6

FIGURE 300 ...................................6-8

APPENDIX

I. GENERAL CIRCUIT DIAGRAM

(CanoScan D1230U) ...................... A-1

II. GENERAL CIRCUIT DIAGRAM

(CanoScan D2400U) ...................... A-2

III. MAIN PCB CIRCUIT DIAGRAM

(CanoScan D1230U) ...................... A-3

IV. MAIN PCB CIRCUIT DIAGRAM

(CanoScan D2400U) .................... A-10


CHAPTER 1

GENERAL DESCRIPTIONS

I. SPECIFICATIONS ...........................1-1

II. PARTS CONFIGURATION...............1-5

A. Front View ...............................1-5

B. Rear View .................................1-5

C. FAU Front View .......................1-6

D. FAU Rear View .........................1-6

III. SETTING UP THE SCANNER .........1-7

A. Precautions ..............................1-7

B. Unlocking the Carriage Lock ...1-8

C. Connecting the Cables.............1-9

D. Scanning a Document ........... 1-10

E. Connecting FAU.....................1-11

IV. CUSTOMER’S DAILY

MAINTENANCE ............................. 1-14

CHAPTER 1

1 - 1COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

I. SPECIFICATIONS

CanoScan D1230U

Scanner Main UnitType : Flatbed image scanner

Scanning PartImage sensor : 10,550-pixel 3-line CCDLight source : Cold cathode fluorescent lampDocument type : Sheet, BookDocument alignment position : Right-end cornerMax. document size : A4/Letter size (216 x 297mm)Image output mode : Color14-bit for RGB each (16-bit input)

Grayscale (256 gradations)Binary (black and white)

Optical resolution : 1200 dpi x 2400 dpiScanning time : 3.60ms/line (600 dpi or lower)

7.20ms/line (601 dpi or higher)Cropping of scan area : One rectangular area only

FAU-S12 Scanning PartFilm type : Color and monochrome, negative and positiveFilm size : 35mm sleeve (preview : 3 frames, scan : 1 frame)

35mm slide mountBrownie (Max. 120x60mm)4x5 inches

Light source : Cold cathode fluorescent lampPower source : Supplied from CanoScan D1230UScanning time : 3.38 to 101.2ms/line (automatically selected depending on

films)Cropping of scan area : One rectangular area only

Interface PartInterface : USB connector (Universal Serial Bus 1.1)

FAU connector (8-pin)Power connector (for AC adapter)

Operating PartStart button : 1 each on D1230U and FAU-S12

CHAPTER 1

1 - 2 COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

OthersOperating environment : Temperature : 10 to 35 degrees

Relative humidity : 10 to 90%RHAir pressure : 613 to 1013 hPa

(When using FAU) : Temperature : 10 to 35 degreesRelative humidity : 10 to 85%RHAir pressure : 613 to 1013 hPa

Power source : 100V to 120V220V to 240V

Power consumption : 17W max. (during operation)8W (during standby)

(When using FAU) : 20W max. (during operation)8W (during standby)

Dimensions (Scanner) : 286.0 (Width) x 461.0 (Depth) x 92.5 (Height) mm (FAU) : 285.0 (Width) x 410.0 (Depth) x 31.0 (Height) mmWeight (Scanner) : 3.4kg (FAU) : 1.1kg

CHAPTER 1


CanoScan D2400U

Scanner Main Unit Type : Flatbed image scanner

Scanning PartImage sensor : 10,680-pixel 6-line CCDLight source : Cold cathode fluorescent lampDocument type : Sheet, BookDocument alignment position : Right-end cornerMax. document size : A4/Letter size (216 x 297mm)Image output mode : Color16-bit for RGB each

Grayscale (256 gradations)Binary (black and white)

Optical resolution : 2400 dpi x 4800 dpiScanning time : 4.5ms/line (600 dpi or lower)

9.0ms/line (601 dpi or higher)Cropping of scan area : One rectangular area only

FAU-S13 Scanning PartFilm type : Color and monochrome, negative and positiveFilm size : 35mm sleeve (preview : 3 frames, scan : 1 frame)

35mm slide mountBrownie (Max. 120x60mm)4x5 inches

Light source : Cold cathode fluorescent lampPower source : Supplied from CanoScan D2400UScanning time : 4.5 to 162.0ms/line (automatically selected depending on

films)Cropping of scan area : One rectangular area only

Interface PartInterface : USB connector (Universal Serial Bus 1.1)

FAU connector (8-pin)Power connector (for AC adapter)

Operating PartStart button : 1 each on D2400U and FAU-S13

CHAPTER 1


OthersOperating environment : Temperature : 10 to 35 degrees

Relative humidity : 10 to 90%RHAir pressure : 613 to 1013 hPa

(When using FAU) : Temperature : 10 to 35 degreesRelative humidity : 10 to 85%RHAir pressure : 613 to 1013 hPa

Power source : 100V to 120V220V to 240V

Power consumption : 17W max. (during operation)8W (during standby)

(When using FAU) : 20W max. (during operation)8W (during standby)

Dimensions (Scanner) : 286.0 (Width) x 461.0 (Depth) x 92.5 (Height) mm (FAU) : 285.0 (Width) x 410.0 (Depth) x 31.0 (Height) mmWeight (Scanner) : 3.4kg (FAU) : 1.1kg

Specifications are subject to change without prior notice.

CHAPTER 1


q Document Coverw Document Glasse Start Button

q USB Connectorw FAU Connectore Power Connector

II. PARTS CONFIGURATION

A. Front View

Figure 1-1

B. Rear View

Figure 1-2

A4LTR

B5

A4

1

3

2

LTR

B5

1

2

3

CHAPTER 1


C. FAU Front View

q FAU Cablew Start Button

Figure 1-3

D. FAU Rear View

q Protective Cover

Figure 1-4

Film Scan

2

1

1

CHAPTER 1


III. SETTING UP THE SCANNER

A. Precautions

* Keep the scanner out of direct sunlight. Direct exposure to the sun or excessive heat maycause damage to the scanner.

* Do not install the scanner in a humid or dusty environment.* Use the supplied AC adapter only.* Place the scanner securely on an even, flat surface. Tilted or uneven surface may cause a

mechanical problem.* Keep the outer carton and packing material in case you may ship the scanner in the future.

CHAPTER 1


q Carriage Lock

B. Unlocking the Carriage Lock

Scanning unit is locked by the carriage lock to prevent a damage during transport. Unlockthe carriage lock by pushing toward the “unlock” mark to use the scanner.

Figure 1-5

Note : Ensure to lock the carriage lock during transport.

LTR

A4LTR

B5

A4

B5

1

CHAPTER 1


q USB Connectorw USB Cablee Power Connectorr AC Adapter

C. Connecting the Cables

D1230U/D2400U is connected to the USB port on the host computer. Refer to the “GettingStarted” guide supplied with the product for details. For connecting the host computer’scables, refer to the manuals for the host computer.

1. Connecting the AC Adapter Cable and USB Cable

1) Connect the AC adapter cable to the power connector on the scanner.2) Connect the square plug (B type) of the USB cable to the USB connector on the scanner,

and connect the flat plug (A type) of the USB cable to the USB port on the host computer.

Figure 1-6

1

2

4

3

CHAPTER 1


q Alignment Mark

D. Scanning a Document

1) Open the document cover.2) Place a document on the document glass, facing the image side down and aligning the upper

corner with the alignment mark.

Figure 1-7

3) Close the document cover, caring not to dislodge the document.4) Send “SCAN” command from the host computer to scan.

A4LTR

B5

A4

B5

...XY

Z

1

TRL

CHAPTER 1


q FAU

E. Connecting FAU

1. Setting Up FAU

1) Remove the document cover and unlock the carriage lock.2) Attach FAU to the scanner.

Figure 1-8

A4LTR

B5

A4

B5

1

LTR

FAU cable is connected to the FAU connector on the scanner. Refer to the “Getting Started”guide supplied with the product for details. For connecting the host computer’s cables, refer tothe manuals for the host computer.

CHAPTER 1


q FAU Cablew FAU Connector

2. Connecting FAU Cable to FAU Connector on the Scanner

1) Connect the AC adapter cable to the power connector on the scanner.2) Connect the FAU cable to the FAU connector on the scanner.

Figure 1-9

1

2

CHAPTER 1


q Protective Cover

3) Remove the protective cover.

Figure 1-10

LTR

A4LTR

B5

A4

B5

LTR

A4LTR

B5

A4

B5

1

CHAPTER 1


IV. CUSTOMER’S DAILY MAINTENANCE

Dirt on the document glass may cause an unclear image or lines on an image. Clean thedocument glass using the following steps.

1) Disconnect all cables from the scanner.2) Wipe a dirt off the document glass with a soft clean cloth dampened with water and well

wrung.3) Thoroughly wipe water off the document glass with a dry cloth.


CHAPTER 2

OPERATION AND TIMING

I. BASIC OPERATION ........................2-1

A. Functions.................................2-1

B. Electrical System .....................2-2

C. Main PCB Input and Output ...2-4

D. Document Scanning

Sequence ................................. 2-6

II. OPTICAL SYSTEM .......................... 2-7

A. Outline ..................................... 2-7

B. Lamp Lighting Circuit .............. 2-8

C. FARE (Film Automatic Retouching

and Enhancement) ................. 2-10

D. Motor Control Circuit ............ 2-12

III. IMAGE PROCESSING .................... 2-13

A. Outline ................................... 2-13

B. Image Processing ................... 2-13

IV. CONTROL SYSTEM ...................... 2-20

A. Control System Diagram ........ 2-20

B. Main PCB ............................... 2-20

V. INTERFACE ................................... 2-21

A. Outline of USB Standard ........ 2-21

B. Benefits of USB Scanner ........ 2-21

C. Signal Definitions .................. 2-22

D. Interface Connection ............. 2-22

VI. POWER SUPPLY ........................... 2-23

CHAPTER 2

2 - 1COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MAR. 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

I. BASIC OPERATION

A. Functions

The scanner functions are divided into optical system, image processing system, and controlsystem.

Figure 2-1

Lens

CCD

BGR

BGR

Optical System

FAU

DriveMotor

Scanning unitScanning

Lamp

Host

Computer

Control

SystemImage Processing System

FARE Unit

FAU Lamp

IR LED

CHAPTER 2

2 - 2 COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MAR. 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

B. Electrical System

1. Outline

The scanner is not equipped with CPU. The device driver installed in the host computerincludes a control program, which functions as CPU. Host computer sends a command to theASIC via the USB controller, the ASIC controls the whole electrical circuits and imageprocessing of the scanner. The image signals read by the CCD are converted into digital databy analog IC. The digital data is then processed by the ASIC and output to the host computervia USB interface.

Figure 2-2

ASIC

USB

Controller

Regulator

Motor

DriverFARE

Unit

Drive

Motor

CCD

PCBAnalog IC

Button PCB

AC Adapter

Host Computer

Start Button

Power LED

DRAM

HomePositionSensor

Control

Program

J2

JP9

JP1

JP8

JP2

Scanning

Lamp

Inverter

PCB

(D2400U only)

FAU

J1

CHAPTER 2


2. Functions of the Main PCB

1) Analog IC Converts the image signals (analog signals) read by the CCD into digital data. - CDS (Correlated Double Sampling) - AGC (Auto Gain Control) - 16-bit A/D converter (Analog-to-Digital Converter)

2) ASIC Performs various processings: - DRAM control - CCD timing clock creation - Line buffer control - CCD output line difference adjustment - Image processing (Binary processing, Image inversion) - Shading correction - Motor driver control

3) DRAM Stores the shading correction data when performing shading correction, and the image datawhen scanning.

4) Motor Driver Supplies power to the drive motor.

5) USB Controller Controls data transfer between the host computer and ASIC.

CHAPTER 2


C. Main PCB Input and Output

1. CanoScan D1230U

Figure 2-3

JP8-1

-2

-3

-4

Drive Motor

PowerLED

Home PositionSensor

"H" when scanning unit is inhome position

Drive motor drive signal

JP2-1-2-3

StartButton

Button PCB

VCCLEDHOTKEY0

+12VGND

"H" when power LED is ON"H" when Start button is pressed

VbusD-D+

GND

J1-1-2-3-4-5-6-7-8

XPAGNDXPAGND

FAU_DETVCC

CNXPAGNDXPAGNDXPAGND

AC Adapter

JP1-1-2-3-4-5-6-7-8-9

-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28

LAMP_GNDLAMP_GND12V_LAMP12V_LAMP+18VP+18VPC-DGNDPHI1PHI2PHI3CNC-DGNDAGNDCCD-SHBCLBCCD-SHGRBCCD-SHRVCCC-DGNDAGNDC-DGNDAGNDCCD_BAGNDCCD_GAGNDCCD_R

OUT1B

OUT1A

OUT2A

OUT2B

JP9-1-2-3-4

To FAU

To HostComputer

J2-1-2

Main PCB

Scanning Unit

CHAPTER 2


Figure 2-4

2. CanoScan D2400U

JP8-1

-2

-3

-4

Drive Motor

PowerLED

Home PositionSensor

"H" when scanning unit is inhome position

Drive motor drive signal

JP2-1-2-3

StartButton

Button PCB

VCCLEDHOTKEY0

+12VGND

"H" when power LED is ON"H" when Start button is pressed

VbusD-D+

GND

J1-1-2-3-4-5-6-7-8

AC Adapter

JP1-1-2-3-4-5-6-7-8-9

-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28

OUT1B

OUT1A

OUT2A

OUT2B

JP9-1-2-3-4

To FAU

To HostComputer

J2-1-2

Main PCB

Scanning Unit

XPAXPAGND

FAU_DETVCC

IRLEDXPAGNDXPAGNDXPAGND

LAMP_GNDLAMP_GND12V_LAMP12V_LAMP+18VP+18VPC-DGNDPHI1PHI2PHI3+12V_VAROSASIC_VAROSAGNDCCD-SHBCLBCCD-SHGRBCCD-SHRVCCC-DGNDAGNDC-DGNDAGNDCCD_BAGNDCCD_GAGNDCCD_R

CHAPTER 2


D. Document Scanning Sequence

Figure 2-5

Table 2-1

*Standby *Scanning Unit ForwardSequence

Scan Command

Setup

Home Position

Sensor

Scanning Lamp

ON Signal

Drive Motor

Interface Signal

StandbyScanning Unit

backward

Standby

Setup

Scanning Unit

Forward

Scanning Unit

backward

Seqence

After the scanner self test is

completed until the scanner

receives a scan command from

the host computer

From the scanner receives a

scan command until it starts

scanning

After the scanner starts scanning

until whole scan area specified

by the host computer is scanned

After the scanning unit starts

moving backward until it returns

to the home position

To maintain the scanner ready

for scan

To execute calibration for setting

light exposure time, gain data and

shading data

To execute image processing

according to the command from

the host computer while scanning

and send imada data to the

host computer

RemarksOperation

The data is stored in DRAM

Purpose

To return the scanning unit to the

home position to ready for the

next scan

Home position is detected

by the home position sensor

CHAPTER 2


II. OPTICAL SYSTEM

A. Outline

The optical system consists of the scanning lamp, lens and mirrors. When scanning areflective document, the scanning lamp in the scanning unit exposes the document andfocuses the reflected light from the document on the light-sensitive device CCD (charge-coupleddevice) via the lens and mirrors.

When scanning a film, FAU lamp in the Film Adapter Unit transmits the film and focuses thetransmitted light on the CCD.

When using FARE system, infrared LED transmits a film after FAU lamp does, and FARE unitoperates to scan the film.

Figure 2-6

LTR

A4LTR

B5

A4

B5

CCD

Lens

FARE Unit

Scanning Lamp

CHAPTER 2


B. Lamp Lighting Circuit

1. Scanning Lamp Lighting Circuit

When the scanner is powered on, or the host computer sends a scan command, ASIC turnsthe scanning lamp lighting signal (LAMP) ON to light the scanning lamp. The reflected light from the document is focused on the light-sensitive device CCD (charge-coupled device) via the five mirrors, lens and FARE unit. The scanner is provided with a lamp OFF function for energy saving. A built-in timer to be setby the device driver is counted during lamp ON and turns the scanning lamp OFF when noscan command is sent for a certain period.

Figure 2-7

Host

ComputerASIC

GND

CCD

PCB GND

Inverter

PCB

Scanning Lamp

Main PCB

LAMP

CCD

Document Glass

Lens FARE Unit

Scanning Unit

CHAPTER 2


2. FAU Lamp Lighting Circuit

When the host computer sends a film scan command, ASIC turns the scanning lamp lightingsignal (LAMP) OFF then turns FAU lamp lighting signal (XPA) ON to light the FAU lamp.

The FAU lamp light is converted into a flat light source by a light guide plate, then diffused via1st diffusive film, brightness enhancement film and 2nd diffusive film. As a result, exposedlight from a transparent plate has equal light intensity which transmits a film and focuses onthe CCD in the scanning unit.

The FAU lamp also has a lamp OFF function for energy saving as in the case of the scanninglamp.

3. Infrared LED Lighting Circuit

When the host computer sends a command to light an infrared LED, ASIC turns IRLED signalON to light the infrared LED. The infrared LED light is converted into a flat light source by a light guide plate as in the caseof the FAU lamp, which transmits a film via 1st diffusive film, brightness enhancement film,2nd diffusive film and transparent plate.

Figure 2-8

Host

ComputerASIC

Main PCB

Inverter

PCB

Scanner

FAU

XPA

FAU Lamp

Scanning Unit

Light Guide Plate

Reflective Film

1st Diffusive Film

BrightnessEnhancement Film

2nd Diffusive Film

IRLED

IRLED

CHAPTER 2


C. FARE (Film Automatic Retouching and Enhancement)

1. Outline

FAU-S13 attached to D2400U employs an infrared LED in addition to the FAU lamp (coldcathode fluorescent lamp) in order to remove scratches and dirt on a film by transmitting a filmby two light sources. This system is called FARE (Film Automatic Retouching andEnhancement).

The infrared LED scans only scratches and dirt on a film as image data. This image data iscompared to the full image data scanned by the FAU lamp, and the overlapping data ofscratches and dirt is subtracted, then this area is compensated for by sampling the ambientdata. Accordingly, the image without scratches and dirt is reproduced.

Figure 2-9

LightSource

Film

Lens

CCD

(CCFL) (IR LED)

Scanned

Image

CHAPTER 2


Figure 2-10-1 Figure 2-10-2 Figure 2-10-3

2. Operation of FARE system

The frequency of the FAU lamp (cold cathode fluorescent lamp) is 380-700nm, while that ofthe infrared LED is 880nm, therefore, their light refractive indexes differ resulting in out offocus (Figure 2-10-2). As a solution, D2400U employs FARE unit between the CCD and lens, which consists of arefraction glass for changing the light refractive index and of an electromagnetic switch forchanging the position of the refraction glass. Firstly, the FAU lamp scans a film passing through the refraction glass. Secondly, theinfrared LED scans a film, at the same time, the electromagnetic switch is turned ON to movethe refraction glass to the position where the infrared LED light does not pass through (Figure2-10-3). Finally, the FAU lamp and infrared LED can scan a properly focused film.

Light source

Film

Lens

Refraction glass

(FARE Unit)

CCD

CCFL IR LED IR LED

CHAPTER 2


D. Motor Control Circuit

Control program analizes a command sent from the host computer, and sends a motor clockgeneration command to ASIC. Gate array generates four-phase motor drive pulse signals [I01,I11, I02, I12], which are sent to the drive motor via motor driver.

When the host computer sends a command to change scaling/resolution, the control programcommands the ASIC to change the frequency of the motor drive pulse signal to change thedrive motor rotating speed.

Figure 2-11

Main PCB

Drive Motor

Host Computer

ASIC MotorDriver

OUT1B

OUT1A

OUT2A

OUT2B

JP8-1

-2

-3

-4

ControlProgram

I02

I01

I11

I12

CHAPTER 2


III. IMAGE PROCESSING

A. Outline

Image processing system consists of the CCD, analog IC, and ASIC. Analog signals read bythe CCD is converted into digital data, then output to the host computer.

Figure 2-12

1. CCD 3. Calibration 4. FilterProcessing

To HostComputer

5. BinaryProcessing

6. ImageInversion

6. ImageInversion

Blue Image dataProcessing

6. ImageInversion

2. A/DConversion

Green Image dataProcessing

Red Image dataProcessing

B. Image Processing

1. CCD

The CCD is a single chip photoelectric conversion device which consists of several thousandphotosensitive devices of each several microns square, for reading RGB image signals, with abuilt-in scanning circuit. D1230U employs 3-line CCD, and D2400U employs 6-line CCD.

1) 6-line CCD 6-line CCD has two rows of staggered photosensitive devices for RGB each. The 6-line CCDtherefore can scan at 1200dpi x 2 = 2400dpi.

Figure 2-13

CHAPTER 2


1) D/A Converter D/A converter removes ununiform analog data generated by the CCD. It adjusts CCD outputto keep max. 5V of input signal to the A/D converter, to make the black level of the imageconstant.

2) A/D Converter The A/D converter converts the black-level-corrected image signal (analog signal) to a 16-bitimage data (digital signal) in the order of red, green and blue image signal.

5V is applied to the Vcc terminal and reference voltage is applied to the Vref terminal. A/Dconverter outputs “0” when input signal is 5V, and outputs “65535” when input signal isreference voltage. This converts 1 pixel signal into the image data of 65536 gradations for red,green and blue each.

Figure 2-15

A/D Converter

Output

Image Data

+5V

0 1

0 1

0 1

0 1

0 1

0 1

0 1

0 1

CCD_B

CCD_G

CCD_R

Blue Image Signal

Green Image Signal

Red Image Signal

Vcc

VrefReference Voltage

2. A/D Conversion

Output signal from the CCD is an analog signal which cannot be used as image data. So RGBoutput signal from the CCD is amplified by analog amplifier to generate analog data. Thegenerated data is converted into averaged analog signal by D/A converter, then got feedback tothe A/D converter to output constant digital data to the ASIC.

Figure 2-14

CCD

RGB

AnalogAmplifier

D/A Converter

A/D Converter Digital dataTo ASIC

Analog IC

CHAPTER 2


3. Calibration

Calibration can be performed to normalize the pixels of a linear CCD so that each pixelproduces the same digital output code from the scanner when presented with the same imagelight intensity. This intensity ranges from black (no light) to white (maximum light intensity).The CCD’s analog output may have large pixel-to-pixel variations in their output voltage whenscanning the same white image (corresponding to errors on brighter signals). If these offsetsare subtracted from each pixel, and each pixel is given the optimum gain setting to correct fordifferent efficiencies, then these errors can be eliminated.

Ideally the digital output code for any pixel would be zero for a black image, and some codenear the full scale for an image with maximum brightness. This code is called the target code.

The analog IC eliminates these global and pixel-to-pixel offset and gain errors with itsCorrelated Double Sampling, Offset D/A converter, Variable Gain Amplifier (VGA), andProgrammable Gain Amplifier (PGA).

Calibrating an analog IC-based system requires three steps:

1) Offset Calibration Takes a black image and normalizes the digital output code for each pixel at or near 0.

2) Boot-Gain/Coarse-Gain Stage Calibration Finds the optimum gain setting that places the output voltage from all pixels from x0.93 to x9adjustment range of these two stages.

3) Shading Correction from ASIC Calculates the gain required for normalizing the output from each pixel to the target code.

4. Filter Processing

When converting resolution and scaling, the image quality tends to be reduced. To preventthe image quality reduction, filter processing is performed according to the resolution. Filterprocessing includes interpolation processing and averaging.

CHAPTER 2


1) Interpolation Processing

When reading images at higher resolution, the one pixel output of the CCD is treated as twoimage data in the horizontal scanning direction, and the one line output of the CCD is treatedas two image data in the vertical scanning direction, causing a reduced image quality. Toprevent the image quality reduction, interpolation processing is performed. Figure 2-16 showsa change in image density by the interpolation processing.

Figure 2-16

A (A) B (B) C (C) D

A B C D(A+B)/2 (B+C)/2 (C+D)/2

Interpolation processing

Image

Density

1 pixel

Image

Density

1 pixel

Interpolation processing

CHAPTER 2


2) Averaging

When reading images at lower resolution, the thinned data increases resulting in outputimage deterioration. Averaging is a process in which the data to be thinned and the data to beactually output are averaged and output, in order to suppress the image deterioration due tothe data thinning.

Figure 2-17

A B C D E F G H

A B C D E F G H

A B C D E F G H

A' E'

CCD

reading

data

Output

image

dataThinned data

CCD

reading

data

Output

image

data

Averaged data=(A+B+C+D)/4

CHAPTER 2


5. Binary Processing

Binary processing converts the 8-bit grayscale data into binary data in which 1 bit indicateswhite or black.

Figure 2-18

The ASIC sets parameters (slice level) in the slice level register when the host computercommands binary processing. The comparator compares the image data with the slice level,and converts the data into binary data consisting of 1 (black) or 0 (white).

Figure 2-19

255254

.

.

.129128127126

.

.

.10

11...1100...00

Binary

processing

Slice

level

Document Image data

(8 bits)

Binary data

(1 bit)

Output image

8 bit grayscale data

AComparator A>B

B

Slice level

register

From ASIC

Binary data

(1 bit)

CHAPTER 2


6. Image Inversion (negative/positive)

Image inversion is to reverse the density level of a document by inverting the color data, 8-bitgrayscale data or binary data.

Figure 2-20

ABC

Image Inversion

Document

ABC

Image Output

CHAPTER 2


IV. CONTROL SYSTEM

A. Control System Diagram

Figure 2-21

B. Main PCB

The scanner is not equipped with CPU. The device driver installed in the host computerincludes a control program, which functions as CPU. Control program sends a command to theASIC in the main PCB, the ASIC controls the whole electrical circuits and image processing ofthe scanner. Main PCB consists of ASIC, DRAM, USB controller, analog I/C and motor driver.

ASIC

+12V

Host Computer

Main PCB AC Adapter

Scanning Unit

Inverter &Scanning Lamp

Drive Motor

DRAM

USBController

MotorDriver

ControlProgram

AnalogIC

CHAPTER 2


V. INTERFACE

A. Outline of USB Standard

Since early 1997, the Universal Serial Bus (USB) has been the standard on most PCs. TheUSB standard was developed by Compaq, IBM, Intel, Microsoft, NEC, and Northern Telecom. Itresulted from an industry-wide initiative to standardize peripheral attachments to PCs, and toimprove the speed, performance and ease of use of PC peripherals.

B. Benefits of USB Scanner

1. True Plug & Play Unlike the previous generation of SCSI scanners, no add-in cards are required to setup theUSB scanners. This eliminates complex procedures, such as opening the box to install a card,or reconfiguring the system (setting DMA, IRQ, jumper cables, etc.) The USB scanners aresimply plugged in and unplugged at any time.

2. Higher Speed USB scanner is nearly 10 times faster than a standard parallel-port scanner at bandwidth 12Mbits/sec. for data transfer.

3. Multiple Devices Support USB specification can support up to 127 devices simultaneously on a computer by using“hub” terminals as additional plug-in ports.

CHAPTER 2


Signal

VBUS

D-

D+

Signal GND

Chassis GND

Pin

1

2

3

4

Shell

Chassis

123 4

C. Signal Definitions

USB uses two differential signal lines (D+ and D-) only to communicate with the hostcomputer.

Table 2-2

D. Interface Connection

USB connector has A plug for connecting to upper layer and B plug for connecting to lowerlayer.

Figure 2-22

A Plug

To Host Computer

B Plug

To Scanner

CHAPTER 2


Figure 2-23

VI. POWER SUPPLY

DC power is supplied from the supplied AC adapter. Through power regulator, four DC powersources (+3.3V, +5V, +12V and +15V) are used in the circuit. +3.3V and +5V are supplied forthe digital circuit and linear chip, +15V is for the CCD PCB, and +12V is for the motor driverand scanning lamp.

12VAC Adapter

12V to 15VStep up switching

Regulator

12V to 5VLinear

Regulator

Motor Driver

Main PCB

CCD PCB

15V to 12VLinear

RegulatorCCD

Analog IC

DriveMotor

PWM

PWM

Inverter Scanning Lamp

InverterFAU Lamp FAU

+5VRegulator

+3.3V RegulatorDigitalCircuit

IR LED


CHAPTER 3

MECHANICAL SYSTEM

I. PARTS REPLACEMENT ..................3-1

A. Precautions ..............................3-1

II. EXTERNALS ...................................3-2

A. Removing the Document

Cover ........................................ 3-2

B. Removing the Top Cover and

Document Glass ....................... 3-3

III. PCBs ............................................... 3-4

A. Removing the Main PCB........... 3-4

B. Removing the Button PCB ....... 3-6

IV. OPTICAL SYSTEM .......................... 3-9

A. Removing the Scanning Unit ... 3-9

B. Removing the Drive Motor ..... 3-15

C. Attaching the Drive Motor ..... 3-17

CHAPTER 3


I. PARTS REPLACEMENT

A. Precautions

* Disconnect the AC adapter, USB cable, and FAU cable from the scanner before replacing theparts.

* Wear anti-static gloves and grounding strap around the wrist during the work.* Follow the instructed steps. Do not remove any screw from the parts that is not to be

replaced.* Store the removed parts in a clean place and avoid missing.* Attach the parts in reverse order of the removing steps, unless otherwise specified.* After replacement, check the quantity and shape of the replaced parts.

CHAPTER 3

3 - 2 COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

q Document Coverw Main Frame

II. EXTERNALS

A. Removing the Document Cover

1) Open the document cover until it is perpendicular to the main frame, then lift to remove it.

Figure 3-1

A4LTR

B5

A4

B5

LTR

1

2

CHAPTER 3


q Screww Top Covere Document Glass

B. Removing the Top Cover and Document Glass

1) Remove two screws from the top cover, then lift the top cover and document glass to removethem.

Figure 3-2

A4

A4

LTR

LTR

B5

B5

1

2

3

CHAPTER 3


q Screww Main PCB

III. PCBs

A. Removing the Main PCB

1) Remove three screws from the bottom of the scanner to take out the main PCB.

Figure 3-3

1

2

CHAPTER 3


q Drive Motor Cablew Button PCB Cablee Scanning Unit Cable (Flat Cable)

2) Disconnect the cables for the drive motor, button PCB and scanning unit from the mainPCB.

Figure 3-4

2 1

3

CHAPTER 3


1

2

q Cable Clampw Ferrite Core

Figure 3-5

B. Removing the Button PCB

1) Remove the main PCB.2) Cut two cable clamps to remove the ferrite core.

CHAPTER 3


q Screww Cable Covere Cable Clamp

3) Remove the top cover and document glass.4) Remove two screws from the cable cover to remove it, then cut two cable clamps.

Figure 3-6

1

2

3

CHAPTER 3


q Screww Button PCB

5) Remove the screw from the button PCB to remove it.

Figure 3-7

Note: When assembling, make sure to tie the cables for the drive motor and button PCBtogether with four cable clamps, and attach the ferrite core. (See Figure 3-5 and 3-6)

1

2

CHAPTER 3


q Scanning Unitw Drive Motore Gear

IV. OPTICAL SYSTEM

A. Removing the Scanning Unit

1) Remove the main PCB.2) Remove two cable clamps to remove the ferrite core.3) Remove the top cover and document glass.4) Remove two screws from the cable cover to remove it, then cut two cable clamps.5) Rotate the gear mounted on the drive motor to move the scanning unit away from the home

position.

Figure 3-8

1

2

3

CHAPTER 3


q Screww Gear Plate 2e Springr Sliding Rod

6) Remove two screws that fix the gear plate 2 on the sliding rod to remove the gear plate 2 andspring.

Figure 3-9

Note: When fixing the gear plate 2 on the sliding rod, use the spring to adjust the drive belt tension.

1

2

3

4

CHAPTER 3


q Screww Drive Motor

7) Remove the screw that fixes the drive motor on the main frame.

Figure 3-10

1

2

CHAPTER 3


q Scanning Unitw Sliding Rod

8) Slide the sliding rod in the arrow direction, then lift with the scanning unit to remove it.

Figure 3-11

2

1

CHAPTER 3


q Scanning Unitw Drive Belt

9) Remove the drive belt from the scanning unit.

Figure 3-12

Note: Do not remove the flat cable from the scanning unit.

1

2

CHAPTER 3


q Scanning Unitw Sliding Rod

10) Pull out the sliding rod to remove the scanning unit.

Figure 3-13

1

2

CHAPTER 3


q Drive Beltw Drive Motore Gear

B. Removing the Drive Motor

1) Remove the main PCB.2) Remove the top cover and document glass.3) Remove the scanning unit.4) Pull the drive belt through the gear to remove it from the drive motor.

Figure 3-14

1

32

CHAPTER 3


Figure 3-15

q Sliding Rodw Drive Motore Screw

5) Remove the screw that fixes the drive motor on the sliding rod.

1

3

2

CHAPTER 3


Figure 3-16

2) Put the sliding rod into the drive motor and fix them with one screw.3) Pass the drive belt through the gear on the drive motor.4) Attach the scanning unit.

Note: When assembling, make sure to tie the cables for the drive motor and button PCB together with four cable clamps, and attach the ferrite core. (See Figure 3-5 and 3-6)

C. Attaching the Drive Motor

1) Apply grease (EM-50L) to the gear on the drive motor as shown by arrows caring not to applyit to the other part.


CHAPTER 4

MAINTENANCE AND SERVICING

I. PERIODICAL REPLACEMENT

PARTS ............................................4-1

II. CONSUMABLE PARTS

DURABILITY ...................................4-1

III. PERIODICAL SERVICING ..............4-1

IV. SPECIAL TOOLS ............................4-1

V. SOLVENTS AND LUBRICANTS ......4-1

CHAPTER 4


I. PERIODICAL REPLACEMENT PARTS

None

II. CONSUMABLE PARTS DURABILITY

None

III. PERIODICAL SERVICING

None

IV. SPECIAL TOOLS

None

V. SOLVENTS AND LUBRICANTS

Grease used for disassembly and reassembly of the scanner.

Name : MOLYKOTE EM-50LTool No. : TKC-0955Usage : To be applied to the gear of the motor assembly.


CHAPTER 5

TROUBLESHOOTING

I. INTRODUCTION .............................5-1

A. Initial Check ............................5-1

B. Others ......................................5-1

II. TROUBLESHOOTING

FLOWCHART .................................. 5-2

A. Power LED Failure ................... 5-2


III. PROBLEM, CAUSE AND

CORRECTIVE ACTION ...................5-4

A. Power LED Not Lighting ..........5-4


C. Scanning Unit Movement

Failure ...................................... 5-5

D. Poor Image Quality ................... 5-5

E. Acoustic Noise ......................... 5-5

IV. CANON SCANNER TEST.................. 5-6

A. Outline ..................................... 5-6

B. Operating Environment ........... 5-6

C. Functions ................................ 5-7

D. Functions Descriptions ........... 5-8

E. Error Message ........................ 5-16

CHAPTER 5


I. INTRODUCTION

A. Initial Check

Check if the operating environment conforms to the following conditions.

* Line voltage is within ±10% of the rated value.* Ambient temperature and humidity conform to the operating environment. (Refer to

CHAPTER 1, I. SPECIFICATIONS)* The scanner is not setup near a water faucet, boiler, humidifier, open flame, or in dusty

place.* The scanner is not exposed to direct sunlight. If it is inevitable to setup in a sunny place,

hang a curtain to block direct sunlight.* The scanner is setup in a well-ventilated place.

B. Others

Moving a scanner from a cold place to a warm place can cause condensation on the metalparts, resulting in a faulty operation.

CHAPTER 5


II. TROUBLESHOOTING FLOWCHART

A. Power LED Failure

Figure 5-1

Unlock

Carriage Lock

Connect

AC Adapter

Power LED is ON ?

Connect

USB cable

No

Yes

Table 5-1

Figure 5-2

CHAPTER 5


B. Communication Failure

Figure 5-2

Scan

Communication

failed ?

Scanning Unit

failed to move ?

YesTable 5-2

YesTable 5-3

YesTable 5-4

No

Poor

image quality ?

No

Acoustic noise

generated ?

Yes

No

Table 5-5

End

No

CHAPTER 5


Possible Cause Related Parts Check Method Corrective Action

USB cable connection failure

Scanner communication failure

Scanning unit failure

USB cable

Main PCB

Scanning unit

Visual check

Trial replacement

Trial replacement

Connect the USB cable

properly

Replace the main PCB

Replace the scanning unit

Possible Cause

AC adapter is unplugged

from the outlet

AC Adapter cable is

disconnected from the scanner

AC adapter output voltage

failure

Main PCB failure

Main PCB connection failure

Related Parts

None

None

AC Adapter

Main PCB

None

Check Method

Visual check

Visual check

Output voltage

(+12V) check

Tester check

(+12V, GND)

Visual check

Corrective Action

Plug the AC adapter into

the outlet

Connect the AC adapter cable

to the power connector on the

scanner

Replace the AC adapter


Properly connect the main PCB

III. PROBLEM, CAUSE AND CORRECTIVE ACTION

D1230U/D2400U may have the following five problems.

* Power LED not lighting* Communication failure* Scanning unit movement failure* Poor image quality* Acoustic noise

A. Power LED Not Lighting

Table 5-1

B. Communication Failure

Table 5-2

CHAPTER 5


Possible Cause Releated Parts Check Method Corrective Action

Drive belt broken or worn

Gears broken or worn

Start button failure

Drive motor failure

Drive belt

Gear plate 2

Button PCB

Motor assembly

Trial replacement

Trial replacement

Trial replacement

Trial replacement

Replace the drive belt

Replace the gear plate 2

Replace the button PCB

Replace the motor assembly

Possible Cause Releated Parts Check Method Corrective Action

Scanning lamp is dark

Dirt on document glass

Main PCB failure

CCD PCB failure

Scanning unit

Document glass

Main PCB

Scanning unit

Visual check

Visual check

Trial replacement

Trial replacement


Clean the document glass



Possible Cause Related Parts Check Method Corrective Action

Motor assembly failure

Main PCB failure

Scanning unit failure

Dirt on sliding rod

Reference sheet is

improperly positioned

Motor assembly

Main PCB

Scanning unit

None

Document glass

Trial replacement

Trial replacement

Trial replacement

Visual check

Trial replacement

Replace the motor assembly



Clean the sliding rod

Replace the document glass

C. Scanning Unit Movement Failure

Table 5-3

D. Poor Image Quality

Table 5-4

E. Acoustic Noise

Table 5-5

CHAPTER 5


IV. CANON SCANNER TEST

A. Outline

Canon Scanner Test is a utility software to check if faulty operation of CanoScan D1230U/D2400U is due to the hardware or the communication with the host computer.

Windows : scnchk1.exe (English or Japanese is switched according to the language to be usedin Windows.)

Macintosh : chk12302400e (English)chk12302400j (Japanese)

B. Operating Environment

The following environment is required for operating the Canon Scanner Test.

Windows platform* CanoScan D1230U/D2400U* PC/AT Compatibles (Pentium or later)* Windows 98 OS* D1230U/D2400U Device Driver

Macintosh platform* CanoScan D1230U/D2400U* Power Macintosh* Macintosh OS (Version 8.5 or later)* D1230U/D2400U Device Driver

Note: Install D1230U/D2400U device driver before using the Canon Scanner Test.

CHAPTER 5


C. Functions

1. USB Information (Windows only)

Scanner information connected to the USB port on the PC of Windows is displayed.

2. Scanner Information

Scanner information connected to the PC is displayed.

3. Scanner Self Test

CanoScan D1230U/D2400U self test is executed.

4. Scan

An image is scanned at any resolution and saved as an image file in the folder of CanonScanner Test.

5. Film Scan

35mm sleeve negative film is scanned by FAU lamp and Infrared LED with FARE functionwhen using FAU, then saved as two image files in the folder of Canon Scanner Test. The film isset in the sleeve film holder 1 and scanned at 1200 dpi fixed. This command is for D2400U only.

Note: Calibration function is gray out and unable to click for D1230U/D2400U.

CHAPTER 5


D. Functions Descriptions

1. USB Information (Windows only)

Select “USB Information” from the “Function” menu to display as shown in Figure 5-3(Windows).

Figure 5-3

* Vendor Description : Manufacturer name of the scanner "Canon Inc."* Device Description : Product name of the scanner "CanoScan D1230U" or "CanoScan

D2400U"* Port Name : Port name of the scanner recognized by Windows* Local Name : Product name of the scanner "CanoScan D1230U" or "CanoScan

D2400U"

CHAPTER 5


2. Scanner Information

Select “Scanner information” from the “Function” menu to display as shown in Figure 5-4(Windows), Figure 5-5 (Macintosh).

Figure 5-4

Figure 5-5

* Vendor ID : Manufacturer name of the scanner "CANON"* Product ID : "IX-24015H"(CanoScan D2400U) or “IX-12145G” (CanoScan D1230U)* ROM Version : Firmware version of the control program of the scanner

CHAPTER 5


3. Scanner Self Test

Select “Scanner self test” from the “Function” menu to display as shown in Figure 5-6(Windows), Figure 5-7 (Macintosh).

Figure 5-6

Figure 5-7

CHAPTER 5


Click “OK” to start scanner self test. When it is completed normally, a dialog is displayed asshown in Figure 5-8 (Windows), Figure 5-9 (Macintosh).

Figure 5-8

Figure 5-9

When an error occurs, refer to “E. Error Message” to take a corrective action.

CHAPTER 5


Figure 5-11

4. Scan

Select “Scan” from the “Function” menu to display as shown in Figure 5-10 (Windows), Figure5-11 (Macintosh).

Figure 5-10

CHAPTER 5


* Scan countSet a number from 1 to 100.

* Resolution (dpi)When the resolution for scanning an image is selected at 150 or 300 dpi, whole

document glass area is scanned. When selected at 600, 1200, or 2400 dpi, 40mm forwardedarea from the reference sheet of the document glass is scanned.

* Image handlingWhen “Read in memory (no file)” is selected, the image is read into the memory, then

abandoned after readout. When “Save to TIFF file” is selected for handling an scanned image,the file of “img0.tif” is saved in the folder of the Canon Scanner Test. When scan count is setat 2 or more, the file of “img0.tif”, “img1.tif”, “img2.tif” ... are saved.

File space to be saved is as follows.150 dpi : 6.5 MB300 dpi : 26 MB600 dpi : 15 MB1200 dpi : 60 MB

2400 dpi : 240 MB

Note : Confirm before scanning that the available disk space on the HDD in which the Canon Scanner Test is installed exceeds above file space.

CHAPTER 5


5. Film Scan

Select “Film Scan” from the “Function” menu to display as shown in Figure 5-12 (Windows),Figure 5-13 (Macintosh).

Figure 5-12

Figure 5-13

CHAPTER 5


* Scan countSet a number from 1 to 100. When 2 or more is set and "Save to TIFF file" is selected, only

a file of specified count is saved.

* Image handlingWhen “Read in memory (no file)” is selected, the image is read into the memory, then

abandoned after readout. When “Save to TIFF file” is selected, two image files scanned byFAU lamp and infrared LED are saved. "Color24.tif" and "IR.tif" are saved in the folder of theCanon Scanner Test. IR.tif is an image of only dirt or dust on the film when FARE function isused. If FARE function does not normally operate, IR.tif image appears all black.

File space to be saved is as follows.Color24.tif (1200 dpi) : 5.6 MBIR.tif (1200 dpi) : 5.6 MB

CHAPTER 5


E. Error Message

1. “Scanner is disconnected or locked.”Cause 1 : Carriage lock is locked.Corrective action : Unlock the carriage lock.

Cause 2 : USB cable is not properly connected.Corrective action : Connect the USB cable to the host computer and the scanner properly.

Cause 3 : Scanner is not detected by the host computer.Corrective action : Refer to the “II. Troubleshooting Flowchart”.

2. “Scanner is disconnected.”Cause 1 : Scanner is not connected to the host computer.Corrective action : Refer to the “II. Troubleshooting Flowchart”.

Cause 2 : Device driver is not installed.Corrective action : Install CanoScan D1230U/D2400U device driver.

3. “Insupportable scanner is connected.”Cause : The connected scanner is not supported by the Canon Scanner Test.Corrective Action : Connect CanoScan D1230U/D2400U.

4. “Unable to find the scanner. Check if the cables are connected properly.”Cause : Scanner is not detected by the host computer.Corrective Action : Refer to the “II. Troubleshooting Flowchart”.

5. “Failed to read scanner information.”Cause : Scanner is not detected by the host computer.Corrective Action : Refer to the “II. Troubleshooting Flowchart”.

6. “Failed to create a file.” “Failed to open a file.” “Failed to close a file.” “Failed towrite-in a file.”

Cause : Canon Scanner Test is started from a CD-ROM or write-protected HDD.Corrective Action : Copy the Canon Scanner Test on a writable HDD to use.

7. “Unable to communicate with scanner. Check if scanner is powered ON or USB cable isconnected properly.”

Cause : Scanner is not detected by the host computer.Corrective Action : Refer to the “II. Troubleshooting Flowchart”.

8. “Scanner has problem.” “Failed to execute scanner self test.”Cause : Scanner is not detected by the host computer.Corrective Action : Refer to the “II. Troubleshooting Flowchart”.

9. “Failed to allocate memory.”Cause : Scanner is not detected by the host computer.Corrective Action : Refer to the “II. Troubleshooting Flowchart”.


CHAPTER 6

PARTS CATALOG

FIGURE 001 ...................................6-2

FIGURE 100 ...................................6-4

FIGURE 200 ...................................6-6

FIGURE 300 ...................................6-8

COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON) 6 - 1

CanoScan D1230U / CanoScan D2400U


FIGURE 001 ACCESSORY

2,3

1

4,8

5

6,7


FIGURE&

KEY NO.DESCRIPTION SERIAL NUMBER/REMARKS

Q'TY

PART NUMBERRANK

001-01

02

03

04

05

06

07

08

NIC-BXDC-002

NIP-WFS0-735

NIP-WFS0-737

NIP-WFS0-738

NIP-WFS0-739

NIP-WFS0-740

NIP-WFS0-741

NIP-WFS0-742

CABLE, USB

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

1

1

1

1

1

JAPAN

USA, CAN, LA

EUR

UK, HK

AUS, SPL

MLC

KOR


FIGURE 100 D1230U

A4

A4

LTR

LTR

B5

B5

1

5

9

10

6

1312

1514

11

2

87

6

16

17

2

18

2

20

19

3

2

4

21


FIGURE&


Q'TY

PART NUMBERRANK

100-01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

NIA-YFSC-290

NIS-F300-872

NIP-N339-000

NIP-N226-900

NIA-YFSC-224

NIS-M300-882

NIA-YFSC-317

NIM-L103-700

NIB-LHTS-F18

NIM-U102-300

NIA-YFSC-223

NIS-X000-700

NIA-YFSC-268

NIP-N502-100

NIP-N400-300

NIA-YFSC-236

NIA-YFSC-316

NIP-S200-100

NIR-C201-200

NPN

NPN

DOCUMENT COVER ASSEMBLY

SCREW, M3X8, SELF-TAPPING

LOCK, CARRIAGE

COVER, TOP

PLATEN GLASS ASSEMBLY

SCREW, M3X8, BH

PLATE, GEAR 2

SPRING

BELT, DRIVE, RUBBER

SLIDING ROD

MOTOR ASSEMBLY


BUTTON PCB ASSEMBLY

BUTTON, FUNCTION

CLAMP, CABLE

CARRIAGE ASSEMBLY

MAIN PCB ASSEMBLY

COVER, CABLE

FOOT, RUBBER

FRAME, MAIN

CORE, FERRITE

1

8

1

1

1

3

1

1

1

1

1

1

1

1

4

1

1

1

4

1

1


FIGURE 200 D2400U

A4

A4

LTR

LTR

B5

B5

1

5

9

10

6

1312

1514

11

2

8

7

6

16

17

2

18

2

20

19

3

2

4

21


FIGURE&


Q'TY

PART NUMBERRANK

200-01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

20

21

NIA-YFSC-360

NIS-F300-872

NIP-N346-500

NIP-N227-100

NIA-YFSC-253

NIS-M300-882

NIA-YFSC-314

NIM-L103-700

NIB-LHTS-F18

NIM-U102-300

NIA-YFSC-251

NIS-X000-700

NIA-YFSC-268

NIP-YFSC-377

NIP-N400-300

NIA-YFSC-255

NIA-YFSC-313

NIP-S200-100

NIR-C201-200

NPN

NPN

DOCUMENT COVER ASSEMBLY


LOCK, CARRIAGE

COVER, TOP

PLATEN GLASS ASSEMBLY

SCREW, M3X8, BH

PLATE, GEAR 2

SPRING

BELT, DRIVE, RUBBER

SLIDING ROD

MOTOR ASSEMBLY


BUTTON PCB ASSEMBLY

BUTTON, FUNCTION

CLAMP, CABLE

CARRIAGE ASSEMBLY

MAIN PCB ASSEMBLY

COVER, CABLE

FOOT, RUBBER

FRAME, MAIN

CORE, FERRITE

1

8

1

1

1

3

1

1

1

1

1

1

1

1

4

1

1

1

4

1

1


FIGURE 300 FAU-S12 / FAU-S13

Film Scan

2

1


FIGURE&


Q'TY

PART NUMBERRANK

300-01

02

NIA-YFSC-331

NIA-YFSC-332

NIA-YFSC-261

FILM ADAPTOR UNIT

FILM ADAPTOR UNIT

COVER, PROTECTIVE

1

1

1

FAU-S12

FAU-S13


I. GENERAL CIRCUIT DIAGRAM

(CanoScan D1230U) ...................... A-1

II. GENERAL CIRCUIT DIAGRAM

(CanoScan D2400U) ...................... A-2

APPENDIX

III. MAIN PCB CIRCUIT DIAGRAM

(CanoScan D1230U) ...................... A-3

IV. MAIN PCB CIRCUIT DIAGRAM

(CanoScan D2400U) .................... A-10

A - 1COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)

I. GENERAL CIRCUIT DIAGRAM (CanoScan D1230U)

12

34

56

78

910

1112

1314

1516

1718

1920

2123

2425

2627

28

12

34

VbusD-D+

GND

LAMP_GNDLAMP_GND12V_LAMP12V_LAMP+18VP+18VPC-DGNDPHI1PHI2PHI3CNC-DGNDAGNDCCD-SHBCLBCCD-SHGRBCCD-SHRVCCC-DGNDAGNDC-DGNDAGNDCCD_BAGNDCCD_GAGNDCCD_R

22

XP

AG

ND

XP

AG

ND

FAU

_DE

TV

CC

CN

XP

AG

ND

XP

AG

ND

XP

AG

ND

12

3

VCCLEDHOTKEY0

12

34

OUT1BOUT1AOUT2AOUT2B

JP9

J1

JP1

Main PCB

Button PCB

JP2

DriveMotor

JP8

12

+12VGND

J2

8 7 6 5 4 3 2 1

8 7 6 5 4 3 2 1

FAU-S12

Scanning unit


II. GENERAL CIRCUIT DIAGRAM (CanoScan D2400U)

12

34

56

78

910

1112

1314

1516

1718

1920

2123

2425

2627

28

12

34

VbusD-D+

GND

LAMP_GNDLAMP_GND12V_LAMP12V_LAMP+18VP+18VPC-DGNDPHI1PHI2PHI3+12V_VAROSASIC_VAROSAGNDCCD-SHBCLBCCD-SHGRBCCD-SHRVCCC-DGNDAGNDC-DGNDAGNDCCD_BAGNDCCD_GAGNDCCD_R

22

XP

AX

PA

GN

DFA

U_D

ET

VC

CIR

LED

XP

AG

ND

XP

AG

ND

XP

AG

ND

12

3

VCCLEDHOTKEY0

12

34

OUT1BOUT1AOUT2AOUT2B

JP9

J1

JP1

Main PCB

Button PCB

JP2

DriveMotor

JP8

12

+12VGND

J2

8 7 6 5 4 3 2 1

8 7 6 5 4 3 2 1

FAU-S13

Scanning unit


III. MAIN PCB CIRCUIT DIAGRAM (CanoScan D1230U)

D5

F1

C80

C76

+T

1C

78C

77+

J2

C79

+12

V+

12V

M

PS

11

2

PS

21

2

R76

+12

V

MO

TOR

GN

DLA

MP

GN

D

PW

RG

ND

+12

VL

+12

V_V

AR

OS

C87

PS

41

2

C13

3

U12 VI

GND

VO

EL9

PS

31

2

C11

7 +

U17 VI

GND

VO

C88

C86 +

C13

2

DG

ND

AG

ND

+12

V

AV

CC

VC

C

PW

RG

ND

DG

ND

C81

C83

R52

U13

SW

_C1

SW

_E2

TC

3

GN

D4

INV

5V

CC

6IS

7D

_C8

R49

L5

R50

C89

D6

R53

C84

+C

85

C82

+

U14

A

12

14 7

R51

R74

PW

RG

ND

PW

RG

ND

PW

RG

ND

AS

IC_V

CC

PW

RG

ND

+12

V

PW

RG

ND

VC

C3V

R61

R62

C98

C10

0+

C10

1R

63

R64

U14

B

34

14 7

C10

2C

97

R60

D8

C10

3

R59

C96

+

R7

Q11

U14

C

56

14

7

C99

+

PW

RG

ND

PW

RG

ND

PW

RG

ND

+18

VP

DG

ND

+12

V

VC

C

PW

RG

ND

VC

CP

WR

GN

D

DG

ND

PW

RG

ND

R6

C18

6

Q13

L7


AS

IC

IX1

IOX

2R

ES

TN

ST

RO

BE

SY

SB

US

7G

ND

SY

SB

US

6S

YS

BU

S5

SY

SB

US

4S

YS

BU

S3

SY

SB

US

2S

YS

BU

S1

SY

SB

US

0N

AC

KB

US

YP

ER

RO

RG

ND

SE

LN

AU

TOF

DN

FAU

LTN

SE

LIN

PLL

TE

ST

MT

_HO

ME

OP

13O

P12

OP

11O

P10

OP

9O

P8

OP

7O

P6

VC

CV

AR

OS

MC

LKM

RS

TV

SM

PS

DI

SC

KG

ND

SE

N

CLMPSDOR_TGG_TGVCCB_TGPHI1PHI2GNDPHI3RBVCCCLBPENANG-TAHITICANARYIRLEDMT_STRBHOTKEY4HOTKEY3LEDHOTKEY0PLLVCCAGNDPLLCPOPLLGNDAPHASE1PHASE2VCCI01I11GNDI02I12VCCY1Y2GNDS_DBUS15S_DBUS14S_DBUS13

LAM

PH

OT

KE

Y1

HO

TK

EY

2S

NR

AS

SN

WE

CK

EV

CC

LDQ

MU

DQ

MB

S1

BS

0S

_AB

US

0G

ND

S_A

BU

S1

S_A

BU

S2

S_A

BU

S3

S_A

BU

S4

S_A

BU

S5

S_A

BU

S6

S_A

BU

S7

S_A

BU

S8

VC

CS

_AB

US

9S

_AB

US

10S

_AB

US

11S

_DB

US

0S

_DB

US

1S

_DB

US

2G

ND

S_D

BU

S3

S_D

BU

S4

S_D

BU

S5

S_D

BU

S6

S_D

BU

S7

VC

CS

_DB

US

8S

_DB

US

9S

_DB

US

10S

_DB

US

11S

_DB

US

12

VCCNUCASNLCASNRASNOENWE

D_ABUS0GND

D_ABUS1D_ABUS2D_ABUS3D_ABUS4D_ABUS5D_ABUS6D_ABUS7

VCCD_ABUS8D_DBUS0D_DBUS1D_DBUS2D_DBUS3D_DBUS4

GNDD_DBUS5D_DBUS6D_DBUS7D_DBUS8D_DBUS9

D_DBUS10D_DBUS11

VCCD_DBUS12D_DBUS13D_DBUS14D_DBUS15SDRAMC1

SNCSGND

SNCASXPA

S_D

BU

S8

S_D

BU

S10

S_D

BU

S9

S_D

BU

S7

S_D

BU

S11

S_D

BU

S6

S_D

BU

S5

S_D

BU

S4

S_D

BU

S12

S_D

BU

S3

S_D

BU

S2

S_D

BU

S1

S_D

BU

S0

S_A

BU

S10

S_A

BU

S9

S_A

BU

S11

S_A

BU

S7

S_A

BU

S6

S_A

BU

S3

S_A

BU

S8

S_A

BU

S5

S_A

BU

S4

S_A

BU

S1

S_A

BU

S2

S_A

BU

S0

BA

0B

A1

S_n

RA

S

WE

CK

ELD

QM

UD

QM

120

119

118

117

116

115

114

113

112

111

110

109

108

107

106

105

104

103

102

101

100

099

098

097

096

095

094

093

092

091

090

089

088

087

086

085

084

083

082

081

41424344454647484950515253545556575859606162636465666768697071727374757677787980

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

SY

SB

US

6S

YS

BU

S5

SY

SB

US

4

SY

SB

US

7

SY

SB

US

0S

YS

BU

S1

SY

SB

US

2

BU

SY

SY

SB

US

3

U19

160159158157156155154153152151150149148147146145144143142141140139138137136135134133132131130129128127126125124123122121

DG

ND

nSE

LIN

OP

13O

P12

OP

11

OP

8

SC

K

CLM

PS

DO

SD

I

SE

N

OP

6

OP

10O

P9

OP

7

RP

10

1 3 5 7

RP

12

1 3 5 7

C16

1

DG

ND

LAM

P

FAU

_DE

T

R11

3

EL2

9

EL3

0

EL3

1

EL3

2

DG

ND

DG

ND

Y1Y2

S_DBUS14S_DBUS15

S_DBUS13

I12

I01

I11

I02

C17

2C

171

+

R116

EL14 DG

ND

DG

NDPHASE2

PHASE1

EL15

C17

6

TP

11 C17

5

mt_strb AS

IC_V

CCHOTKEY0

LED

C17

4

R115 ASIC_VCC

C17

3

PHI2

CLB

RB

PHI3

2 4 6 8

C16

5C

166

C16

4C

163

2 4 6 8

AS

IC_V

CC

DG

ND

DG

ND

C15

1

C16

2+

C15

3

R11

2

C15

2

EL3

3

EL3

4

EL3

5

C15

9C

160

AS

IC_V

CC

DG

ND

DG

ND

AS

IC_V

CC

AS

IC_V

CC

DG

NDnS

TR

OB

E

AS

IC_C

LK

nAC

K

nAU

TOF

D

R120

RP3

1 23 45 67 8

RP1

1 23 45 67 8

RP2

1 23 45 67 8

C15

4

C15

6

RP6

1 23 45 67 8

C15

7

R11

4

RP5

1 23 45 67 8

C15

5

EL3

7

DG

ND

AS

IC_V

CC

DG

ND

FAU

_KE

Y

T_DBUS4

T_nRAS

T_DBUS11

T_nUCAS

T_DBUS7

T_ABUS8

S_nCAS

T_DBUS14

T_nOE

T_ABUS0

T_DBUS13

T_ABUS3

T_DBUS10

T_ABUS1

T_ABUS5

XPA

T_DBUS2

T_DBUS5

T_DBUS3

T_ABUS4

T_nLCAS

T_ABUS2

T_DBUS9

T_DBUS0

T_DBUS15

T_DBUS6

T_ABUS6T_ABUS7

CLKCS

T_DBUS12

T_DBUS1

T_DBUS8

T_nWE

5

DG

ND

AS

IC_V

CC

DG

ND

EL15

EL14

PLLVCC

PLLGND

C18

4

C18

3

AS

IC_V

AR

OS

MC

LK

VS

MP

MTA

TH

OM

E

DG

ND

DG

ND

DG

ND

C18

8

C18

7

C17

8

EL

16R

77

PHI1

CCD_SHG

CCD_SHB

CCD_SHR

C16

8C

167

C17

0C

169

DG

ND

R58R65R73R75

R54

R55

R56

R57


U15

AD

D_0

AD

D_1

AD

D_2

AD

D_3

AD

D_4

AD

D_5

AD

D_6

AD

D_7

AD

D_8

AD

D_9

AD

D_1

0/A

P

BA

WRA

SC

AS

LDQ

MU

DQ

M

CLK

CK

C

DQ

0D

Q1

DQ

2D

Q3

DQ

4D

Q5

DQ

6D

Q7

DQ

8D

Q9

DQ

10D

Q11

DQ

12D

Q13

DQ

14D

Q15

VD

DV

DD

VS

SV

SS

VD

DQ

1V

DD

Q2

VD

DQ

3V

DD

Q4

VS

SQ

1V

SS

Q2

VS

SQ

3V

SS

Q4

NC

NC

/RF

U

DG

ND

S_D

BU

S2

S_D

BU

S14

S_D

BU

S8

S_A

BU

S3

S_n

CA

S

S_D

BU

S7

S_A

BU

S5

S_D

BU

S4

S_D

BU

S3

S_n

RA

S_D

BU

S0

CK

E

S_A

BU

S1

S_D

BU

S11

S_A

BU

S9

S_A

BU

S2

S_A

BU

S4

S_D

BU

S10

CLK

S_A

BU

S8

S_D

BU

S6

BA

0

S_A

BU

S6

S_D

BU

S15

S_D

BU

S1

S_A

BU

S0

S_D

BU

S9

CS

UD

QM

S_D

BU

S13

S_A

BU

S7

S_A

BU

S10

WE

S_D

BU

S12

LDQ

M

S_D

BU

S5

U7

IRA

M_A

0IR

AM

_A1

IRA

M_A

2IR

AM

_A3

IRA

M_A

4IR

AM

_A5

IRA

M_A

6IR

AM

_A7

IRA

M_A

8

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

VC

CV

CC

VC

C

VS

SV

SS

VS

SO

E

WE

RA

SD

UC

A

LCA

NC

1N

C2

NC

4N

C3

T_D

BU

S5

T_D

BU

S15

T_n

RA

S

T_D

BU

S13

T_D

BU

S8

T_D

BU

S6

T_n

OE

T_D

BU

S11

T_n

LCA

S

T_D

BU

S0

T_D

BU

S9

T_D

BU

S4

T_D

BU

S3

T_D

BU

S7

T_n

UC

AS

T_D

BU

S14

T_D

BU

S1

T_D

BU

S12

T_D

BU

S10

T_n

WE

T_D

BU

S2

T_A

BU

S0

T_A

BU

S1

T_A

BU

S2

T_A

BU

S4

T_A

BU

S6

T_A

BU

S7

T_A

BU

S8

T_A

BU

S5

T_A

BU

S3

21 22 23 24 27 28 29 30 31 32 20 19 1517 1614 36 35 34 18 33 37

2 3 5 6 8 9 11 12 39 40 42 43 45 46 48 49 1 25 26 50 7 13 38 44 4 10 41 47

16 17 18 19 22 23 24 25 26 271314282911 12 3015

2 3 4 5 7 8 9 10 31 32 33 34 36 37 38 39 1 6 20 21 35 40

DG

ND

BC

2C

42+

BC

1B

C3

VC

DG

ND

C92

C93

C70

C72

C73

+

C90

C95

+C

91

VQ

3V

DG

ND

DG

ND

VC

C3


C11

8

C10

6+

C10

8

VC

C

+3.

3V

DG

ND

DG

ND

DG

ND

AS

IC_C

LK

C10

7

R66 D

GN

D

R11

9 C10

9C

110

nST

RO

B

SY

SB

US

0

SY

SB

US

3S

YS

BU

S2

SY

SB

US

5

SY

SB

US

1

SY

SB

US

7

BU

S

SY

SB

US

4

SY

SB

US

6

R70

R71

+

C11

3+

R72

D-

D+

SY

SB

US

7

SY

SB

US

1

SY

SB

US

3S

YS

BU

S2

SY

SB

US

4

SY

SB

US

0

nST

RO

BE

D+

SY

SB

US

5

D-

BU

SY

SY

SB

US

6

DG

ND

DG

ND

U16

CLK

OU

TU

RS

TIO

R#/

WR

#IO

W#/

WA

IT#

D0

D1

D2

D3

VC

CG

ND

D4

D5

D6

D7

VC

PD

+D

-V

CG

ND

NC

O

AS

TR

B#

DS

TR

B#

A3/

INIT

#A

2/G

PIO

7A

1/G

PIO

6A

0/G

PIO

5D

RQ

/GP

IO4

DA

CK

#/G

PIO

3G

ND

VC

CE

OP

#/G

PIO

2C

S#/

GP

IO1

INT

#M

OD

ER

ST

YP

EO

SC

SE

LX

1X

2N

C2

NC

1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

R65

GP

IO4

FAU

_KE

Y

GP

IO3

nAU

TOF

D

nAC

KH

OT

KE

Y0

nSE

LIN

Y1

C1

11

R6

9R

68

C1

12

C1

05

C1

04

+

UX

2U

X1

DG

ND

DG

ND

VC

C

nAU

TOF

D

FAU

_KE

Y

nAC

K

nSE

LIN

HO

TK

EY

0

ER1

C11

4C

115

ER20

ER3

C11

6

JPU

SB

CO

NN

EC

TOR

TY

PE

B1 2 3 4

FG

R20

R21

ER2

DG

ND

DG

ND


C51

R31

C52

C53

C54

R29

R27

C59

U9

OU

T1A

1

OU

T2A

2

SE

NS

E2

3

CO

MP

_IN

24

OU

T2B

5

GN

D6

GN

D7

I02

817

GN

D18

GN

D19

I01

20

OU

T1B

21

JP8

1 2 3 4

MO

TOR

GN

D

MO

TOR

GN

D

MO

TOR

GN

D I02

C65

R32

I12

9

PH

AS

E2

10

VR

EF

211

RC

114

VR

EF

115

PH

AS

E1

16

I11

CO

MP

_IN

122

SE

NS

E1

23

LOA

DS

UP

PLY

24

RC

212

LOG

ICS

UP

PLY

13

R39

C63

C66

C62

MO

TOR

GN

D

DG

ND

DG

ND

VC

C

MO

TOR

GN

DI1

1

I01

PH

AS

E1

I12

PH

AS

E2

C55

+

R34

C56

R35

C61

+

ER

4E

R5

R28

ER

6

R30

C58

R33

C60

C57

EL1

1

+12

VM

MO

TOR

GN

D

DG

ND

+12

V

DG

ND

C64

Q9

R40

R38

R36

DG

ND

DG

ND

R37

R41

Q10

DG

ND

DG

ND

DG

ND Y1

Y2


R11

0

J1

1 2 3 4 5 6 7 8 FG

PS

51

2

C18

EL1

0

Q5

R13

D4

D10

L3

D9

C17

D3

R11

C16

+

D7

R10

XPA

GN

D

XPA

GN

D

AS

IC_V

CC

XPA

GN

D

XPA

GN

DX

PAG

ND

FAU

_DE

T

C9

+

R22

C12

+

C11

C10

EL5

C13

R9

Q7

C-D

GN

D

+18

VP

XPA

GN

D

VC

C

XPA

GN

D

C-D

GN

D

AS

IC_V

CC

PH

I2

CC

D_B

CC

D_G

CC

D_R

FAU

_KE

Y

+12

VL

C5

+

EL2 EL4

EL3

JP1

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

C8

LAM

PG

ND

C-D

GN

D

LAM

PG

ND

LAM

PG

ND

LAM

PG

ND

AG

ND

LAM

P

CC

D_S

HR

CLB

RB

C14

+

D2

L2C7

R4

C15

Q3

Q4

C6

+

R8

R5

+12

VL

LAM

PG

ND

LAM

PG

NDLA

MP

GN

D

LAM

PG

ND

Q6

R17

R14

D13

R18

EL7

D14

EL1

3

C21

JP2

123

D11

D12

Q8

XPA

GN

DX

PAG

ND

PW

RG

ND

AS

IC_V

CC

VC

C

DG

ND

DG

ND

DG

ND

Q12

C19

R19

C20

DG

ND

AS

IC_V

CC

XPA

MTA

TH

OM

E

PH

I1

CC

D_S

HG

PH

I3

CC

D_S

HB

HO

TK

EY

0

LED

EL1

2

EL6

R16

EL8

R15

S1

VC

C

DG

ND

DG

ND

DG

ND

VC

C

1 2

3 4

EL1

DG

NDC17

9

DG

NDEL1

9

AS

IC_V

AR

OS

+12

V_V

AR

OS

C-D

GN

D

C18

2

EL1

7E

L18


C39

C40

ER

7

C31

+

ER

8

C32

ER

9

C38

+

C26

C27

+

C28

C23

C29

+

C30

C22

C33

C34

ER

17

C37

C25

+

AG

ND

AG

ND

AG

ND

AV

CC

DG

ND

CC

D_R

CC

D_G

CC

D_B

SE

N

SD

O

SD

C24

+

AV

CC

EL3

8

C36

U6 VA

13

OS

R5

VR

EF

-8

VR

efM

id2

OS

G7

VR

EF

6

OS

9

AG

ND

14

AG

ND

211

CLM

P18

VS

MP

17

MC

LK16

SC

LK15

SD

I13

/SE

N12

SD

O14

VD

20

DG

ND

19

VB

andG

ap1

VA

10

D7

28

D6

27

D5

26

D4

25

D3

24

D2

23

D1

22

D0

21C

35+

DG

ND

AS

IC_V

CC

CLM

P

VS

MP

MC

LK

SC

OP

11

OP

13O

P12

OP

10O

P9

OP

8O

P7

OP

6


IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan D2400U)

D5

F1

C80

C76

+T

1C

78C

77+

J2

C79

+12

V+

12V

M

PS

11

2

PS

21

2

R76

+12

V

MO

TOR

GN

DLA

MP

GN

D

PW

RG

ND

+12

VL

+12

V_V

AR

OS

C87

C18

6

PS

41

2

C13

3

U12 VI

GND

VO

EL9

PS

31

2

C11

7 +

U17 VI

GND

VO

C88

C86 +

C13

2

DG

ND

AG

ND

+12

V

AV

CC

VC

C

PW

RG

ND

DG

ND

C81

C83

R52

U13

SW

_C1

SW

_E2

TC

3

GN

D4

INV

5V

CC

6IS

7D

_C8

R49

L5

R50

C89

D6

R53

C84

+C

85

C82

+

U14

A

12

14 7

R51

R74

PW

RG

ND

PW

RG

ND

PW

RG

ND

AS

IC_V

CC

PW

RG

ND

+12

V

PW

RG

ND

VC

C3V

R61

R62

C98

C10

0+

C10

1R

63

R64

U14

B

34

14 7

C10

2C

97

R60

D8

C10

3

R59

C96

+

L7

Q11

U14

C

56

14

7

C99

+

PW

RG

ND

PW

RG

ND

PW

RG

ND

+18

VP

DG

ND

+12

V

VC

C

PW

RG

ND

VC

C

DG

ND

PW

RG

ND

R6

R7

Q13

PW

RG

ND


AS

IC

IX1

IOX

2R

ES

TN

ST

RO

BE

SY

SB

US

7G

ND

SY

SB

US

6S

YS

BU

S5

SY

SB

US

4S

YS

BU

S3

SY

SB

US

2S

YS

BU

S1

SY

SB

US

0N

AC

KB

US

YP

ER

RO

RG

ND

SE

LN

AU

TOF

DN

FAU

LTN

SE

LIN

PLL

TE

ST

MT

_HO

ME

OP

13O

P12

OP

11O

P10

OP

9O

P8

OP

7O

P6

VC

CV

AR

OS

MC

LKM

RS

TV

SM

PS

DI

SC

KG

ND

SE

N

CLMPSDOR_TGG_TGVCCB_TGPHI1PHI2GNDPHI3RBVCCCLBPENANG-TAHITICANARYIRLEDMT_STRBHOTKEY4HOTKEY3LEDHOTKEY0PLLVCCAGNDPLLCPOPLLGNDAPHASE1PHASE2VCCI01I11GNDI02I12VCCY1Y2GNDS_DBUS15S_DBUS14S_DBUS13

LAM

PH

OT

KE

Y1

HO

TK

EY

2S

NR

AS

SN

WE

CK

EV

CC

LDQ

MU

DQ

MB

S1

BS

0S

_AB

US

0G

ND

S_A

BU

S1

S_A

BU

S2

S_A

BU

S3

S_A

BU

S4

S_A

BU

S5

S_A

BU

S6

S_A

BU

S7

S_A

BU

S8

VC

CS

_AB

US

9S

_AB

US

10S

_AB

US

11S

_DB

US

0S

_DB

US

1S

_DB

US

2G

ND

S_D

BU

S3

S_D

BU

S4

S_D

BU

S5

S_D

BU

S6

S_D

BU

S7

VC

CS

_DB

US

8S

_DB

US

9S

_DB

US

10S

_DB

US

11S

_DB

US

12VCC

NUCASNLCASNRASNOENWE

D_ABUS0GND

D_ABUS1D_ABUS2D_ABUS3D_ABUS4D_ABUS5D_ABUS6D_ABUS7

VCCD_ABUS8D_DBUS0D_DBUS1D_DBUS2D_DBUS3D_DBUS4

GNDD_DBUS5D_DBUS6D_DBUS7D_DBUS8D_DBUS9

D_DBUS10D_DBUS11

VCCD_DBUS12D_DBUS13D_DBUS14D_DBUS15SDRAMC1

SNCSGND

SNCASXPA

S_D

BU

S8

S_D

BU

S10

S_D

BU

S9

S_D

BU

S7

S_D

BU

S11

S_D

BU

S6

S_D

BU

S5

S_D

BU

S4

S_D

BU

S12

S_D

BU

S3

S_D

BU

S2

S_D

BU

S1

S_D

BU

S0

S_A

BU

S10

S_A

BU

S9

S_A

BU

S11

S_A

BU

S7

S_A

BU

S6

S_A

BU

S3

S_A

BU

S8

S_A

BU

S5

S_A

BU

S4

S_A

BU

S1

S_A

BU

S2

S_A

BU

S0

BA

0B

A1

S_n

RA

S

WE

CK

ELD

QM

UD

QM

120

119

118

117

116

115

114

113

112

111

110

109

108

107

106

105

104

103

102

101

100

099

098

097

096

095

094

093

092

091

090

089

088

087

086

085

084

083

082

081

41424344454647484950515253545556575859606162636465666768697071727374757677787980

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

SY

SB

US

6S

YS

BU

S5

SY

SB

US

4

SY

SB

US

7

SY

SB

US

0S

YS

BU

S1

SY

SB

US

2

BU

SY

SY

SB

US

3

U19

160159158157156155154153152151150149148147146145144143142141140139138137136135134133132131130129128127126125124123122121

DG

ND

nSE

LIN

OP

13O

P12

OP

11

OP

8

AS

IC_V

AR

OS

MC

LK

VS

MP

SC

K

CLM

PS

DO

SD

I

SE

N

OP

6

OP

10O

P9

OP

7

MTA

TH

OM

E

RP

10

1 3 5 7

RP

12

1 3 5 7

C16

1

DG

ND

LAM

P

FAU

_DE

T

R11

3

EL2

9

EL3

0

EL3

1

EL3

2

DG

ND

DG

ND

Y1Y2

S_DBUS14S_DBUS15

S_DBUS13

I12

I01

I11

I02

C17

2C

171

+

R116

EL14 DG

ND

DG

NDPHASE2

PHASE1

EL15

C17

6

TP

11 C17

5

mt_strb AS

IC_V

CCHOTKEY0

LED

C17

4

R117

C17

3

PHI1

CCD_SHG

CCD_SHB

CCD_SHR

PHI2

CLB

RB

PHI3

C16

8

2 4 6 8

C16

5

C16

7

C16

6

C17

0

C16

4

C16

9

C16

3

2 4 6 8

AS

IC_V

CC

DG

ND

DG

ND

C15

1

C16

2+

C15

3

R11

2

C15

2

EL3

3

EL3

4

EL3

5

C15

9C

160

AS

IC_V

CC

DG

ND

DG

ND

AS

IC_V

CC

AS

IC_V

CC

DG

NDnS

TR

OB

E

AS

IC_C

LK

nAC

K

nAU

TOF

D

R120

RP3

1 23 45 67 8

RP1

1 23 45 67 8

RP2

1 23 45 67 8

C15

4

C15

6

RP6

1 23 45 67 8

C15

7

R11

4

RP5

1 23 45 67 8

C15

5

EL3

7

DG

ND

AS

IC_V

CC

DG

ND

FAU

_KE

Y

T_DBUS4

T_nRAS

T_DBUS11

T_nUCAS

T_DBUS7

T_ABUS8

S_nCAS

T_DBUS14

T_nOE

T_ABUS0

T_DBUS13

T_ABUS3

T_DBUS10

T_ABUS1

T_ABUS5

XPA

T_DBUS2

T_DBUS5

T_DBUS3

T_ABUS4

T_nLCAS

T_ABUS2

T_DBUS9

T_DBUS0

T_DBUS15

T_DBUS6

T_ABUS6T_ABUS7

CLKCS

T_DBUS12

T_DBUS1

T_DBUS8

T_nWE

IRLLED

DG

ND

DG

ND

DG

ND

DG

ND

C18

8

C18

7

C17

8

RL1

6R

77

DG

ND

DG

ND

R58R65R73R75

R54

R55

R56

R57

AS

IC_V

CC

DG

ND

EL15

EL14

PLLVCC

PLLGND

C18

4

C18

3


U8

AD

D_1

24

AD

D_2

25

AD

D_3

26

AD

D_4

29

AD

D_5

30

AD

D_6

31

AD

D_7

32

AD

D_8

33

AD

D_9

34

AD

D_0

23

AD

D_1

135

AD

D_1

0/A

P22

DQ

0D

Q1

DQ

2D

Q3

DQ

4D

Q5

DQ

6D

Q7

DQ

8D

Q9

DQ

10D

Q11

DQ

12D

Q13

DQ

14D

Q15

BA

020

BA

121

NC

136

NC

240

RA

S18

CA

S17

LDQ

M15

CS

19

UD

QM

39

CLK

38

CK

E37

WE

16

VD

DV

DD

VD

D

VS

SV

SS

VS

S

VD

DQ

VD

DQ

VD

DQ

VS

SQ

VS

SQ

VS

SQ

VD

DQ

VS

SQ

DG

ND

BA

0B

A1

LDQ

M

S_n

CA

SS

_nR

AS

UD

QM CS

CK

EW

E

CLK

S_A

BU

S6

S_A

BU

S11

S_A

BU

S4

S_A

BU

S8

S_A

BU

S7

S_A

BU

S9

S_A

BU

S10

S_A

BU

S3

S_A

BU

S0

S_A

BU

S5

S_A

BU

S2

S_A

BU

S1

2 4 5 7 8 10 11 13 42 44 45 47 48 50 51 53 1 14 27 28 41 54 9 43 49 6 12 463 52

C43

C44

C46

+

C45

C48

C49

C50

C41

+

C47

DG

ND

VC

C3V

DG

ND

VC

C3V

S_D

BU

S7

S_D

BU

S8

S_D

BU

S6

S_D

BU

S4

S_D

BU

S11

S_D

BU

S1

S_D

BU

S10

S_D

BU

S15

S_D

BU

S13

S_D

BU

S5

S_D

BU

S0

S_D

BU

S14

S_D

BU

S9

S_D

BU

S2

S_D

BU

S12

S_D

BU

S3

U7

IRA

M_A

0IR

AM

_A1

IRA

M_A

2IR

AM

_A3

IRA

M_A

4IR

AM

_A5

IRA

M_A

6IR

AM

_A7

IRA

M_A

8

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

VC

C1

VC

C2

VC

C3

VS

S1

VS

S2

VS

S3

OE

WE

RA

SD

UC

AS

LCA

S

NC

1N

C2

NC

4N

C3

BC

2C

42+

BC

1B

C3

VC

C

DG

ND

DG

ND

T_D

BU

S5

T_D

BU

S15

T_n

RA

S

T_D

BU

S13

T_D

BU

S8

T_D

BU

S6

T_n

OE

T_D

BU

S11

T_n

LCA

S

T_D

BU

S0

T_D

BU

S9

T_D

BU

S4

T_D

BU

S3

T_D

BU

S7

T_n

UC

AS

T_D

BU

S14

T_D

BU

S1

T_D

BU

S12

T_D

BU

S10

T_n

WE

T_D

BU

S2

T_A

BU

S0

T_A

BU

S1

T_A

BU

S2

T_A

BU

S4

T_A

BU

S6

T_A

BU

S7

T_A

BU

S8

T_A

BU

S5

T_A

BU

S3

16 17 18 19 22 23 24 25 26

2 3 4 5 7 8 9 10 31 32 33 34 36 37 38 39 1 6 20 21 35 40271314282911 12 3015


DG

ND

C11

8

C10

6+

C10

8

VC

C

+3.

3V

DG

ND

DG

ND

DG

ND

AS

IC_C

LK

C10

7

R66 D

GN

D

R11

9 C10

9C

110

nST

RO

BE S

YS

BU

S0

SY

SB

US

3S

YS

BU

S2

SY

SB

US

5

SY

SB

US

1

SY

SB

US

7

BU

SY

SY

SB

US

4

SY

SB

US

6

R70

R71

+

C11

3+

R72

D-

D+

SY

SB

US

7

SY

SB

US

1

SY

SB

US

3S

YS

BU

S2

SY

SB

US

4

SY

SB

US

0

nST

RO

BE

D+

SY

SB

US

5

D-

BU

SY

SY

SB

US

6

DG

ND

DG

ND

U16

CLK

OU

TU

RS

TIO

R#/

WR

#IO

W#/

WA

IT#

D0

D1

D2

D3

VC

CG

ND

D4

D5

D6

D7

VC

PD

+D

-V

CC

GN

DN

CO

AS

TR

B#

DS

TR

B#

A3/

INIT

#A

2/G

PIO

7A

1/G

PIO

6A

0/G

PIO

5D

RQ

/GP

IO4

DA

CK

#/G

PIO

3G

ND

VC

CE

OP

#/G

PIO

2C

S#/

GP

IO1

INT

#M

OD

ER

ST

YP

EO

SC

SE

LX

1X

2N

C2

NC

1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

R65

GP

IO4

FAU

_KE

GP

IO3

nAU

TOF

D

nAC

KH

OT

KE

Y0

nSE

LIN

Y

C11

1

R69

R68

C11

2

C10

5C

104

+

UX

2U

X1

DG

ND

DG

ND

nAU

TOF

D

FAU

_KE

Y

nAC

K

nSE

LIN

HO

TK

EY

0

ER1

C11

4C

115

ER20

ER3

C11

6

JP9

US

BC

ON

NE

CTO

RT

YP

EB

1 2 3 4

FG

R20

R21

ER2

DG

ND

DG

ND


C51

R31

C52

C53

C54

R29

R27

C59

U9

OU

T1A

1

OU

T2A

2

SE

NS

E2

3

CO

MP

_IN

24

OU

T2B

5

GN

D6

GN

D7

I02

817

GN

D18

GN

D19

I01

20

OU

T1B

21

JP8

1 2 3 4

MO

TOR

GN

D

MO

TOR

GN

D

MO

TOR

GN

D I02

C65

R32

I12

9

PH

AS

E2

10

VR

EF

211

RC

114

VR

EF

115

PH

AS

E1

16

I11

CO

MP

_IN

122

SE

NS

E1

23

LOA

DS

UP

PLY

24

RC

212

LOG

ICS

UP

PLY

13

R39

C63

C66

C62

MO

TOR

GN

D

DG

ND

DG

ND

VC

C

MO

TOR

GN

DI1

1

I01

PH

AS

E1

I12

PH

AS

E2

C55

+

R34

C56

R35

C61

+

ER

4E

R5

R28

ER

6

R30

C58

R33

C60

C57

EL1

1

+12

VM

MO

TOR

GN

D

DG

ND

+12

V

DG

ND

C64

Q9

R40

R38

R36

DG

ND

DG

ND

R37

R41

Q10

DG

ND

DG

ND

DG

ND Y1

Y2


R11

0J1

C3

R22

D4

D10

Q7

R13

EL1

0

C4

+D

9

C18

L1

D7

D1 +

12V

L

XPA

GN

D

XPA

GN

D

XPA

GN

D

AS

IC_V

CC

XPA

GN

DX

PAG

ND

AS

IC_V

CC

FAU

_DE

T

FAU

_K

EY

C9

Q1

C11

Q2

C2

R2

C1

+

R1

R3

C-D

GN

D

+12

VL

VC

C

XPA

GN

DX

PAG

ND

PH

I2

IRLE

D+

EL2

EL4

C10

EL5

JP1

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

LAM

PG

ND

+18

VP

LAM

PG

ND

C-D

GN

DA

GN

D

CLB

RB

C14

+

C5

+

D2

L2C7

R4

C15

Q3

Q4

C6

+

R8

R5

C8

TRA

CE,T1

+12

VL

LAM

PG

ND

LAM

PG

ND

LAM

PG

ND

LAM

PG

ND

LAM

PG

ND

LAM

P

1 2 3 4 5 6 7 8 FG

PS

51

2

Q6

L3

C17

D3

C16

+

AS

IC_V

CC

XPA

GN

D

XPA

GN

DP

WR

GN

D

XPA

GN

D

XPA

GN

D

Q5

C12

+

R11

C13

R9

R10

XPA

GN

DX

PAG

ND

XPA

CC

D_B

CC

D_G

CC

D_R

EL1

EL1

2

EL3

EL6

EL8

LAM

PG

ND

C-D

GN

D

CC

D_S

HR

PH

I1

CC

D_S

HG

PH

I3

CC

D_S

HB

R16

R15

S1

C20

VC

C

DG

ND

DG

ND

DG

ND

VC

C

MTA

TH

OM

E1 2

3 4

Q12

R17

R14

R18

EL7

EL1

3

C21

R19

D12

Q8

AS

IC_V

CC

VC

C

DG

ND

DG

ND

HO

TK

EY

0

LED

D13

D14

JP2

123

D11

DG

ND

DG

ND

DG

ND

C17

9

DG

ND

AS

IC_V

AR

OS

+12

V_V

AR

OS

C-D

GN

D

C18

2

EL1

7E

L18

EL1

9


C39

C40

ER

7

C31

+

ER

8

C32

ER

9

C38

+

C26

C27

+

C28

C23

C29

+

C30

C22

C33

C34

ER

17

C37

C25

+

AG

ND

AG

ND

AG

ND

AV

C

DG

ND

CC

D_R

CC

D_G

CC

D_B

SE

N

SD

O

SD

C24

+

AV

CC

EL3

8

C36

U6 VA

13

OS

R5

VR

EF

8

VR

efM

id2

OS

G7

VR

EF

6

OS

B9

AG

ND

14

AG

ND

211

CLM

P18

VS

MP

17

MC

LK16

SC

LK15

SD

I13

/SE

N12

SD

O14

VD

20

DG

ND

19

VB

andG

ap1

VA

210

D7

28

D6

27

D5

26

D4

25

D3

24

D2

23

D1

22

D0

21

C35 +

DG

ND

AS

IC_V

CC

CLM

P

VS

MP

MC

LK

SC

K

OP

11

OP

13O

P12

OP

10O

P9

OP

8O

P7

OP

6

COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)PRINTED IN JAPAN (IMPRIME AU JAPON) 0301M0.04-1 CANON INC.

Date post:	30-Dec-2015
Category:	Documents
Upload:	doru-razvan
View:	29 times
Download:	0 times

Canon-Canoscan D-1230 Service Manual

Documents