Canon d1230sm schematic

SERIES

SERVICE MANUAL

REVISION 0

MARCH 2001

JY8-1319-000

Printed in Japan

Imprimè au Japon

Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Serial Number List

CanoScan D1230U 6683A001AA AZQ000000-

6683A003AA DZQ0000006683A004AA EZQ0000006683A005AA FZQ0000006683A006AA LZQ0000006683A007AA JZQ000000-

CanoScan D1230UF 6684A002AA CZR000000-

6684A003AA DZR0000006684A004AA EZR0000006684A008AA MZR0000006684A009AA KZR0000006684A010AA LZR000000-

FAU-S12 6687A001AA AZS000000-

6687A002AA BZS000000-

CanoScan D2400U 6785A001AA AZT000000-

6685A002AA DZT0000006685A003AA EZT000000-

CanoScan D2400UF 6685A001AA AZU000000-

6685A002AA CZU0000006685A003AA DZU0000006685A004AA EZU0000006685A005AA FZU0000006685A006AA LZU0000006685A007AA JZU0000006685A008AA MZU000000-

FAU-S13 6774A001AA AZV000000-

6774A002AA BZV000000-

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

I. SPECIFICATIONS

CanoScan D1230U

Scanner Main Unit

Type : Flatbed image scanner

Scanning Part

Image sensor : 10,550-pixel 3-line CCD Light source : Cold cathode fluorescent lamp Document type : Sheet, Book Document alignment position : Right-end corner Max. 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 dpi Scanning time : 3.60ms/line (600 dpi or lower)

7.20ms/line (601 dpi or higher)

Cropping of scan area : One rectangular area only

CHAPTER 1

FAU-S12 Scanning Part

Film type : Color and monochrome, negative and positive Film size : 35mm sleeve (preview : 3 frames, scan : 1 frame)

35mm slide mount

Brownie (Max. 120x60mm)

4x5 inches Light source : Cold cathode fluorescent lamp Power source : Supplied from CanoScan D1230U Scanning time : 3.38 to 101.2ms/line (automatically selected depending on

films) Cropping of scan area : One rectangular area only

Interface Part

Interface : USB connector (Universal Serial Bus 1.1)

FAU connector (8-pin)

Power connector (for AC adapter)

Operating Part

Start button : 1 each on D1230U and FAU-S12

1 - 1

CHAPTER 1

Others

Operating environment : Temperature : 10 to 35 degrees

Relative humidity : 10 to 90%RH Air pressure : 613 to 1013 hPa

(When using FAU) : Temperature : 10 to 35 degrees

Relative humidity : 10 to 85%RH Air pressure : 613 to 1013 hPa

Power source : 100V to 120V

220V 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) mm Weight (Scanner) : 3.4kg (FAU) : 1.1kg

1 - 2

CanoScan D2400U

Scanner Main Unit

Type : Flatbed image scanner

Scanning Part

Image sensor : 10,680-pixel 6-line CCD Light source : Cold cathode fluorescent lamp Document type : Sheet, Book Document alignment position : Right-end corner Max. 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 dpi Scanning time : 4.5ms/line (600 dpi or lower)

9.0ms/line (601 dpi or higher)

Cropping of scan area : One rectangular area only

CHAPTER 1

FAU-S13 Scanning Part

Film type : Color and monochrome, negative and positive Film size : 35mm sleeve (preview : 3 frames, scan : 1 frame)

35mm slide mount

Brownie (Max. 120x60mm)

4x5 inches Light source : Cold cathode fluorescent lamp Power source : Supplied from CanoScan D2400U Scanning time : 4.5 to 162.0ms/line (automatically selected depending on

films) Cropping of scan area : One rectangular area only

Interface Part

Interface : USB connector (Universal Serial Bus 1.1)

FAU connector (8-pin)

Power connector (for AC adapter)

Operating Part

Start button : 1 each on D2400U and FAU-S13

1 - 3

CHAPTER 1

Others

Operating environment : Temperature : 10 to 35 degrees

Relative humidity : 10 to 90%RH Air pressure : 613 to 1013 hPa

(When using FAU) : Temperature : 10 to 35 degrees

Relative humidity : 10 to 85%RH Air pressure : 613 to 1013 hPa

Power source : 100V to 120V

220V 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) mm Weight (Scanner) : 3.4kg (FAU) : 1.1kg

Specifications are subject to change without prior notice.

1 - 4

II. PARTS CONFIGURATION

A. Front View

2

q Document Cover w Document Glass e Start Button

CHAPTER 1

1

LTR

A4

B5

3

B. Rear View

q USB Connector w FAU Connector e Power Connector

B5

LTR

A4

Figure 1-1

1

2

3

Figure 1-2

1 - 5

CHAPTER 1

C. FAU Front View

q FAU Cable w Start Button

1

2

Film Scan

Figure 1-3

D. FAU Rear View

1

q Protective Cover

1 - 6

Figure 1-4

CHAPTER 1

III. SETTING UP THE SCANNER

A. Precautions

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

cause 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.

1 - 7

CHAPTER 1

B. Unlocking the Carriage Lock

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

1

LTR

A4

B5

LTR

A4

q Carriage Lock

Figure 1-5

Note : Ensure to lock the carriage lock during transport.

1 - 8

CHAPTER 1

C. Connecting the Cables

D1230U/D2400U is connected to the USB port on the host computer. Refer to the “Getting Started” guide supplied with the product for details. For connecting the host computer’s cables, 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.

q USB Connector w USB Cable e Power Connector r AC Adapter

1

2

3

4

Figure 1-6

1 - 9

CHAPTER 1

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.

LTR

A4

B5

...XYZ

B5

TRL

A4

q 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.

1

1 - 10

CHAPTER 1

E. Connecting FAU

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 to the manuals for the host computer.

1. Setting Up FAU

1) Remove the document cover and unlock the carriage lock.

2) Attach FAU to the scanner.

1

LTR

A4

B5

LTR

A4

q FAU

Figure 1-8

1 - 11

CHAPTER 1

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.

1

q FAU Cable w FAU Connector

2

Figure 1-9

1 - 12

3) Remove the protective cover.

1

CHAPTER 1

B5

LTR

A4

q Protective Cover

LTR

A4

B5

LTR

A4

LTR

A4

B5

Figure 1-10

1 - 13

CHAPTER 1

IV. CUSTOMER’S DAILY MAINTENANCE

Dirt on the document glass may cause an unclear image or lines on an image. Clean the document 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.

1 - 14

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

I. BASIC OPERATION

A. Functions

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

FAU

FAU Lamp

IR LED

Host Computer

Control System

Scanning

Lamp

B G R

CCD

BGR

Scanning unit

Lens

FARE Unit

Image Processing System

Optical System

Drive Motor

Figure 2-1

2 - 1

CHAPTER 2

B. Electrical System

1. Outline

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

Host Computer

Control Program

JP9

AC Adapter

Scanning

Lamp

Inverter

PCB

CCD PCB

FARE

Unit

(D2400U only)

J2

JP1

Regulator

Analog IC

USB

Controller

ASIC

Home Position Sensor

DRAM

Motor Driver

J1

JP2

JP8

FAU

Button PCB

Start Button Power LED

Drive Motor

2 - 2

Figure 2-2

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

CHAPTER 2

3) DRAM

Stores the shading correction data when performing shading correction, and the image data when scanning.

4) Motor Driver

Supplies power to the drive motor.

5) USB Controller

Controls data transfer between the host computer and ASIC.

2 - 3

CHAPTER 2

C. Main PCB Input and Output

1. CanoScan D1230U

AC Adapter

Scanning Unit

J2-1

JP1-1

-10

-11

-12

-13

-14

-15

-16

-17

-18

-19

-20

-21

-22

-23

-24

-25

-26

-27

-28

-2

-3

-4

-5

-6

-7

-8

-9

+12V GND

LAMP_GND LAMP_GND 12V_LAMP 12V_LAMP +18VP +18VP C-DGND PHI1 PHI2 PHI3 CN C-DGND AGND CCD-SHB CLB CCD-SHG RB CCD-SHR VCC C-DGND AGND C-DGND AGND CCD_B AGND CCD_G AGND CCD_R

Main PCB

XPAGND XPAGND

FAU_DET

VCC

CN XPAGND XPAGND XPAGND

Vbus

D+

GND

J1-1

-2

-3

-4

-5

To FAU

-6

-7

-8

JP9-1

To Host

-2

D-

Computer

-3

-4

Start

Button

Button PCB

Home Position

Sensor

Powe r

LED

Drive Motor

JP2-1

-2

-3

JP8-1

-2

-3

-4

Figure 2-3

VCC LED HOTKEY0

OUT1B OUT1A OUT2A OUT2B

"H" when power LEDis ON "H" when Star t button is pressed

"H" when scanning unitis in home position

Drive motor drive signal

2 - 4

2. CanoScan D2400U

CHAPTER 2

Scanning Unit

AC Adapter

J2-1

JP1-1

-10

-11

-12

-13

-14

-15

-16

-17

-18

-19

-20

-21

-22

-23

-24

-25

-26

-27

-28

-2

-3

-4

-5

-6

-7

-8

-9

+12V GND

LAMP_GND LAMP_GND 12V_LAMP 12V_LAMP +18VP +18VP C-DGND PHI1 PHI2 PHI3 +12V_VAROS ASIC_VAROS AGND CCD-SHB CLB CCD-SHG RB CCD-SHR VCC C-DGND AGND C-DGND AGND CCD_B AGND CCD_G AGND CCD_R

Main PCB

XPA

XPAGND

FAU_DET

VCC

IRLED XPAGND XPAGND XPAGND

Vbus

D+

GND

J1-1

-2

-3

-4

-5

To FAU

-6

-7

-8

JP9-1

D-

To Host

-2 Computer

-3

-4

Start

Button

Button PCB

Home Position

Sensor

Power

LED

Drive Motor

JP2-1

JP8-1

-2

-3

-2

-3

-4

VCC LED HOTKEY0

OUT1B OUT1A OUT2A OUT2B

Figure 2-4

"H" when power LEDis ON "H" when Star t button is pressed

"H" when scanning unitis in home position

Drive motor drive signal

2 - 5

CHAPTER 2

D. Document Scanning Sequence

Scan Command

Home Position Sensor

Scanning Lamp ON Signal

Drive Motor

Interface Signal

Seqence

*Standby *Scanning Unit ForwardSequence

Operation

Setup

Figure 2-5

Purpose

Scanning Unit backward

Standby

Remarks

Standby

Setup

Scanning Unit Forward

Scanning Unit backward

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

To return the scanning unit to the home position t o ready for the next scan

Table 2-1

The data is stored in DRAM

Home position i s detected by the home position sensor

2 - 6

CHAPTER 2

II. OPTICAL SYSTEM

A. Outline

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

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

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

Scanning Lamp

Lens

CCD

FARE Unit

B5

LTR

A4

B5

LTR

A4

Figure 2-6

2 - 7

Canon d1230sm schematic

Serial Number List

CONTENTS

CHAPTER 1

I. SPECIFICATIONS

II. PARTS CONFIGURATION

III. SETTING UP THE SCANNER

IV. CUSTOMER’S DAILY MAINTENANCE

CHAPTER 2

I. BASIC OPERATION

II. OPTICAL SYSTEM