Canon FB330 FM630 Service Manual

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

SERIES

OCT. 1999 JY8-1315-000

REVISION 0

SERVICEMANUAL


COPYRIGHT © 1999 CANON INC.

Printed in JapanImprimè au Japon

Use of this manual should be strictly supervised

to avoid disclosure of confidential information.


CanoScan FB330P F91-3511-200 AZA000000-F91-3521-200 MZA000000-F91-3541-200 DZA000000-F91-3551-200 EZA000000-F91-3561-200 FZA000000-F91-3571-200 LZA000000-F91-3581-200 JZA000000-F91-3589-200 RZA000000-F91-3591-200 KZA000000-

CanoScan FB630P F91-3611-100 AZB000000-F91-3631-100 CZB000000-F91-3641-100 DZB000000-F91-3651-100 EZB000000-F91-3661-100 FZB000000-F91-3671-100 LZB000000-F91-3611-200 AZC000000-F91-3621-200 MZC000000-F91-3631-200 CZC000000-F91-3641-200 DZC000000-F91-3651-200 EZC000000-F91-3661-200 FZC000000-F91-3671-200 LZC000000-F91-3681-200 JZC000000-F91-3689-200 RZC000000-F91-3691-200 KZC000000-

CanoScan FB630U F91-3831-100 CZD000000-F91-3841-100 DZD000000-F91-3861-100 FZD000000-F91-3871-100 LZD000000-

CanoScan FB636U F91-3812-100 AZE000000-F91-3842-100 DZE000000-F91-3872-100 LZE000000-F91-3882-100 JZE000000-F91-3892-100 KZE000000-

LIST OF SERIAL NUMBER


PREFACE

This service manual contains the basic information necessary for servicing the FB330P/FB630P/FB630U/FB636U image scanners.

The service manual consists of the following chapters.

Chapter 1: General DescriptionsFeatures, specifications, exterior features, installation, customer’s dailymaintenance

Chapter 2: Operation and TimingBasic operation, optical system, image processing system, control system,power supply

Chapter 3: Mechanical SystemExternals, drive system, optical system, PCB

Chapter 4: Maintenance and ServicingPeriodical replacement parts, consumable parts durability, periodicalservicing, special tools, solvents and lubricants

Chapter 5: TroubleshootingIntroduction, troubleshooting, location of electrical parts, canon scanner test

Chapter 6: Parts Catalog

Appendix: General circuit diagram, main PCB circuit diagram

The information in this service manual is subject to change as the product is improved.All relevant information in such cases will be provided by the service information bulletins.

A thorough understanding of the FB330P/FB630P/FB630U/FB636U, based on the servicemanual and service information bulletins, is vital to the serviceman in maintaining the productquality and performance, and in locating and repairing the cause of malfunctions.


CONTENTS

I. FEATURES ..................................... 1-1

II. SPECIFICATIONS ........................... 1-2

III. EXTERIOR FEATURES .................. 1-5

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

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

IV. INSTALLATION .............................. 1-7

A. Preface ..................................... 1-7

B. Installation .............................. 1-8

C. Connecting to the Host

Computer ................................ 1-9

D. Scanning a Document........... 1-12

V. CUSTOMER’S DAILY MAINTENANCE.

............................................... 1-13

CHAPTER 2 : OPERATION AND TIMING

CHAPTER 1 : GENERAL DESCRIPTIONS

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

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

B. Outline of Electrical

System..................................... 2-2

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

D. Basic Sequences of CanoScan

FB330P/FB63OP ...................... 2-6

E. Basic Sequences of CanoScan

FB630U/FB636U ................... 2-19

II. OPTICAL SYSTEM ....................... 2-26

A. Outline .................................. 2-26

B. CanoScan FB330P/FB630P

Document Scanning Sequence

............................................... 2-27

C. CanoScan FB630U/FB636U

Document Scanning Sequence

............................................... 2-28

D. Contact Image Sensor ........... 2-29

E. Scanning Unit Drive Motor

Control Circuit ...................... 2-32

III. IMAGE PROCESSING SYSTEM.... 2-33

A. Outline .................................. 2-33

B. Image Processing

Functions .............................. 2-34

IV. CONTROL SYSTEM ..................... 2-38

A. CanoScan

FB330P/FB630P ..................... 2-38

B. CanoScan

FB630U/FB636U .................... 2-40

V. POWER SUPPLY........................... 2-42

A. CanoScan

FB330P/FB630P ..................... 2-42

B. CanoScan

FB630U/FB636U .................... 2-43


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

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

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

II. TROUBLESHOOTING ..................... 5-2

A. Troubleshooting Image

Defects .................................... 5-2

B. Troubleshooting

Malfunctions ........................... 5-3

III. LOCATION OF ELECTRICAL

PARTS ............................................ 5-4

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

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

B. Canon Scanner Test for

CanoScan FB330P/FB630P ..... 5-6

C. Canon Scanner Test USB for

CanoScan FB630U/FB636U

............................................... 5-12

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 3 : MECHANICAL SYSTEM

I. EXTERNALS .................................. 3-1

A. Covers ...................................... 3-1

II. DRIVE SYSTEM.............................. 3-7

A. Scanning Unit Drive Part ........ 3-7

III. OPTICAL SYSTEM ....................... 3-11

A. Contact Image Sensor ........... 3-11

IV. PCB .............................................. 3-15

A. Main PCB ............................... 3-15

B. Button PCB ........................... 3-17

CHAPTER 6 : PARTS CATALOG

CanoScan FB330P/CanoScanFB630P

................................................. 6-1

CanoScan FB630U/CanoScan FB636U

................................................. 6-7


APPENDIX

I. GENERAL CIRCUIT DIAGRAM

(CanoScan FB330P/FB630P) ......... A-1

II. GENERAL CIRCUIT DIAGRAM

(CanoScan FB630U/FB636U) ........ A-2

III. MAIN PCB CIRCUIT DIAGRAM

(CanoScan FB330P) ...................... A-3

IV. MAIN PCB CIRCUIT DIAGRAM

(CanoScan FB630P) ...................... A-8

V. MAIN PCB CIRCUIT DIAGRAM

(CanoScan FB630U/FB636U) ...... A-13

COPYRIGHT © 1999 CANON INC. CANON CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 1

GENERAL DESCRIPTIONS

I. FEATURES....................................... 1-1

II. SPECIFICATIONS ............................ 1-2

III. EXTERIOR FEATURES .................... 1-5

IV. INSTALLATION......................... 1-7

V. CUSTOMER’S DAILY

MAINTENANCE....................... 1-13

CHAPTER 1

1 - 1COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

I. FEATURES

CanoScan FB330P (hereafter FB330P) with 300 x 600 dpi resolution, CanoScan FB630P(hereafter FB630P) and CanoScan FB630U/FB636U (hereafter FB630U/FB636U) with 600 x1200 dpi resolution are flatbed image scanners incorporating the following features.

1. High gradation and high image quality are achieved by employing a highly sensitive contactimage sensor with LIDE (LED Indirect Exposure) technology for the reading unit, and byreading each RGB color by 12 bit and outputting by 8 bit.

2. The scanner is a small size of 256.0(W) x 372.5(D) x 39.0(H) mm, and a light weight of 1.5kg by using a downsized scanning unit.

3. The scanner can easily be connected to the host computer through a parallel interface(FB330P/FB630P) or a USB interface (FB630U/FB636U).

4. The scanner can be placed vertically to scan by using an optional stand.

5. CanoScan FB630U/FB636U draws its power from USB port on the host computer requiringno AC adapter.

CHAPTER 1

1 - 2 COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

II. SPECIFICATIONS

CanoScan FB330P

MAIN UNIT· Type : Flat bed image scanner

READING UNIT· Image sensor : 2552 pixels contact image sensor· Light source : LED indirect exposure (RGB each)· Max. document size : A4 or Letter (216 x 297 mm)· Image output : RGB 8 bits per channel (input 12 bits)· Resolution : 300 x 600 dpi· Scan time : 60 sec. (color, A4, 300 dpi)

20 sec. (grayscale, A4, 300 dpi)· Resolution conversion : 75/150/300 dpi (Horizontal)

75/150/300/600 dpi (Vertical)· Cropping area : A rectangular frame can be specified.

INTERFACE· Interface : Parallel interface (IEEE-1284/ECP)/1 male and 1

femalePower terminal for AC adapter

OTHERS· Operating environment : Temperature range, 5 to 35ºC

Humidity range, 10 to 90%Air pressure range, 613 to 1013 hPa

· Power consumption : 5.0 W (during operation), 2.5 W (during standby)· Dimensions : 256.0(W) x 372.5(D) x 39.0(H) mm· Weight : 1.5 kg

CHAPTER 1


CanoScan FB630P



40 sec. (grayscale, A4, 600 dpi)· Resolution conversion : 75/150/300/600 dpi (Horizontal)

75/150/300/600/1200 dpi (Vertical)· Cropping area : A rectangular frame can be specified.

INTERFACE· Interface : Parallel interface (IEEE-1284/ECP)/1 male and 1

femalePower terminal for AC adapter




CHAPTER 1





40 sec. (grayscale, A4, 600 dpi)· Resolution conversion : 75/150/300/600 dpi (Horizontal)

75/150/300/600/1200 dpi (Vertical)· Cropping area : A rectangular frame can be specified.

INTERFACE· Interface : USB interface (B plug) x 1




Specifications are subject to change with product improvement.

CHAPTER 1


III. EXTERIOR FEATURES

CanoScan FB330P/FB630P

A. Front View

Figure 1-1

B. Rear View

Figure 1-2

III. EXTERIOR FEATURES

q Document Coverw Document Glasse Alignment Markr Lock Switch

A4LTR

B5

A4LTR

B5

1

2

3

4

q Power Terminalw PC Porte Printer Port

1

23

CHAPTER 1



A. Front View

Figure 1-3

B. Rear View

Figure 1-4

q Document Coverw Document Glasse Alignment Markr Start Buttont Lock Switch

q USB Port

A4LTR

B5

A4LTR

B5

1

2

3

54

1

CHAPTER 1


IV. INSTALLATION

A. Preface

The following installation conditions are required.

1. Ambient temperature should be between 5½C and 35½C, and humidity between 10% and 90%. Avoid locations near water faucets, boilers, humidifiers, or refrigerators.

2. Avoid locations subject to open flame, dust, or direct sunlight. If it is installed near awindow, hang a curtain to block direct sunlight.

3. The room should be well ventilated.

4. Install on a sturdy and level desk, etc.

5. Moving a scanner from a cold place to a warm place can cause condensation on the metalparts, resulting in a faulty operation. Give the scanner at least one hour to adjust to theroom temperature before unpacking.

CHAPTER 1


q Lock Switch

B. Installation

1. Unlocking the lockThe scanner is shipped with the scanning unit locked by the lock switch to prevent damage

during transport. Unlock the scanning unit to use the scanner.

1) Turn the scanner over as shown in Figure 1-5.

Figure 1-5

2) Push the lock switch in the arrow direction to unlock.

Figure 1-6

3) Return the scanner to its standard position.

Note: Always lock the scanning unit during transport.

1

CHAPTER 1


q PC Portw Parallel Cable

C. Connecting to the Host Computer

FB330P/FB630P is connected to the parallel port, FB630U/FB636U is connected to theUSB port on the host computer. This section explains how to connect the scanner to the hostcomputer using a parallel cable or a USB cable supplied with the scanner. Refer to "GettingStarted" for details. For connecting/disconnecting the host computer's cables, refer to themanual supplied with the host computer.

1. Connecting to the host computer (FB330P/FB630P)1) Turn the host computer OFF. Disconnect the printer cable if it is connected to the parallel

port on the host computer.2) Connect the parallel cable supplied with the scanner to the parallel port on the host

computer.3) Connect the other end of the parallel cable to the PC port on the scanner.

Figure 1-7

1 2

CHAPTER 1


4) Connect the printer cable if it is disconnected in 1) to the printer port on the scanner.

Figure 1-8

5) Connect the AC adapter to the power terminal on the scanner.

Note: Printer precautions * WPS (Windows Printing System) printer cannot be used in a daisy-chain configuration. * When a printer is daisy-chained to the scanner, turn the scanner ON to use the printer.

q Printer Portw Printer Cable

21

CHAPTER 1


2. Connecting to the host computer (FB630U/FB636U)1) Connect the flat connector (A plug) of the USB cable supplied with the scanner to the USB

port on the host computer.2) Connect the other end (B plug) of the USB cable to the USB port on the scanner.

Figure 1-9

q USB Portw USB Cable

1

2

CHAPTER 1


D. Scanning a Document

1) Open the document cover.2) Place a document on the document glass, orienting the image face down and aligning its

top edge with the alignment mark.

Figure 1-10

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

q Alignment Mark

A4LTR

B5

A4LTR

B5

123

1

CHAPTER 1


V. CUSTOMER'S DAILY MAINTENANCE

Dirt on a document glass or a document cover may cause an unclear image or lines on animage. Clean the document glass and the document cover using the following procedures.

1) Turn the host computer OFF.2) Disconnect all the cables from the scanner.3) Wipe the dirt or dust off the document cover with a soft clean cloth dampened with water

and well wrung. Wipe the document glass with a dry cloth.4) Thoroughly wipe water off the document cover with a dry cloth.


CHAPTER 2

OPERATION AND TIMING

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

II. OPTICAL SYSTEM ..................... 2-26

III. IMAGE PROCESSING

SYSTEM ..................................... 2-33

IV. CONTROL SYSTEM .................... 2-38

V. POWER SUPPLY ......................... 2-42

CHAPTER 2


Control system

Scanning unit

drive motor

Contact image

sensor

Image processing system

Optical system

Host computer

I. BASIC OPERATION

A. Functions

The scanner functions are divided into the three main blocks of optical system, imageprocessing system, and control system.

Figure 2-1

CHAPTER 2


B. Outline of Electrical System

1. CanoScan FB330P/FB630PFigure 2-2 shows the outline of electrical system of CanoScan FB330P/FB630P.Major electrical control of the scanner is performed by the main PCB.Image signals read by the contact image sensor are converted into digital data by the analog

IC. The converted image data are image-processed by the gate array and output to the hostcomputer via PC port.

Figure 2-2

J3

J5

J2

J4

DCS1

M1

CS1

Main PCB

Contactimagesensor Analog

IC

Gate array

Buffer

RAM

CPU

Scanning unitdrive motor

AC adapter

To PC port

To printer port

CHAPTER 2


2. CanoScan FB630U/FB636UFigure 2-3 shows the outline of electrical system of CanoScan FB630U/FB636U. CPU is not

equipped in the main PCB. The device driver installed in the host computer includes a controlprogram, which functions as CPU.

Image signals read by the contact image sensor are converted into digital data by the analogIC. The converted image data are image-processed by the gate array, then converted into USBdata by USB to EPP bridge IC and output to the host computer via USB port.

Figure 2-3

J2

J1

J3

M1

CS1

Main PCB

Button PCB

Start button

BT1

USB to EPPBridge IC

Gate array

Home positionsensor

HP1

Host computer

Control

program

Contactimagesensor Analog

IC

Buffer RAM


USBport

CHAPTER 2


J4-1-2-3-4-5-6-7-8-9

-10-11-12-13-14-15-16-17-18-19-20

OUTNCAGNDVCCVREFSPCLKLED COMMONBLEDGLEDRLEDFGNDNCNCNCNCAPANBPBN

HSTBIF0IF1IF2IF3IF4IF5IF6IF7

HACKHXBSY

HXPERRHXSELHATFDHFALTHINIT

HSELINGND

PSTBIF0IF1IF2IF3IF4IF5IF6IF7

PACKPXBSY

PXPERRPXSELPATFDPFALTPINIT

PSELINGND

J3-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18 -25

J5-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18 -25

J2-1

-2DCS1

CS1

+10.5V

GND

M1

Main PCB

AC adapter

Contact image sensor

Scanning unit drive motor

Scanning unit drive motordrive signal

To printer

To hostcomputer

C. Main PCB Input and Output

1. CanoScan FB330P/FB630P

Figure 2-4

CHAPTER 2


2. CanoScan FB630U/FB636U

Figure 2-5

J3-1-2-3-4-5-6-7-8-9

-10-11-12-13-14-15-16-17-18-19-20


+5VD-D+

GND

J1-1-2-3-4

To hostcomputer

Scanning unit drive motor drive signal

J2-1-2-3-4

CS1

HMSENGNDVCCBTON

M1


LEDGLEDRLEDBLED COMMONCPRSCLKSPGNDVADVDDOSGNDGNDGNDGNDAPANBPBN

"L" when start button is pressed.

"H" when scanning unit is in home position.

Button PCB

Startbutton

Homepositionsensor

HP1

BT1

Main PCB

CHAPTER 2


D. Basic Sequences of CanoScan FB330P/FB630P

The basic sequences of CanoScan FB330P/FB630P are divided into power ON sequence,calibration sequence, and document scanning sequence.

1. Power ON sequence

Figure 2-6-1

<Hardware setting>Time requiredabout 0.7 seconds

1

Power ON

Sets CPU

Checks CPU internal

Sets CPU error flag

CPU internal waschecked normally?

Sets gate array

Sets analog IC

Checks buffer RAM

Buffer RAM waschecked normally?

Sets CPU error flag

NO

YES

NO

YES

CHAPTER 2


Figure 2-6-2

1

NO

YES

Sets CPU timer

Sets communicationgate array

Starts interrupt process

Sets parameter

Checks gate array

Sets CPU error flag

Gate array waschecked normally?

Detects black area

Starts overvoltage detection

CHAPTER 2


Figure 2-6-3

<Home position detection>

Time required

about 5 to 6 seconds

(Max. 15 sec. returning time

is added depending on the

position of scanning unit)

NOTE: If the peak light intensitydoes not reach the blacklevel even after checkingseveral lines more, thehome position detection isin error. 3

2

Detects black area

YES

NO

StandbySets detection mode for border

between black and white

Sets border detection value

G LED ON

YES

NO

Peak light intensity to CIS

reached black level?

Sets scanning unit return

Returns scanning unit

Overvoltage was detected?

Sets error flag

CHAPTER 2


Figure 2-6-4

2

3



YES

Stops scanning unit

YES

Fixed feeding

limit was exceeded?

NOTE: Fixed feeding is limited to A4.

Scanning unit stops at the point

the limit is exceeded even when

black area is not detected.

NO




NO

Detects border betweenblack and white

Sets HP returndistance (2 mm)


Stops scanning unit

Scanning unit

returned 2 mm?

Initializes buffer RAM control

Standby

YES

NO

YES

NO

NOTE: If the peak light intensitydoes not reach the blacklevel even after checkingseveral lines more, thehome position detection isin error.

CHAPTER 2


Figure 2-6-5

**** RAM*1********

1*****

4

LED **

********

4


Sets detection mode for border

between black and white

NO NO

YES

Peak light intensity to CISreached white level?

Stops scanning unit

Fixed feedinglimit (max. 15 mm) was

exceeded?

White level inboth ends of the obtained

data is normal?

NO

YES

NO

YES

Scanning unitmoved forward more

than 2 mm?Standby

G LED ON

Sets document feed distance(max. 15 mm)

Moves scanning unit forward

YES

Obtains 1 line of datato buffer RAM

Moves 1 line

Sets error flag

G LED OFF

CHAPTER 2


When CanoScan FB330P/FB630P is powered ON, the CPU in the main PCB performshardware setting and home position detection according to the flowchart shown in Figure 2-6.

1) Hardware settingThe CPU, gate array, and buffer RAM in the main PCB are checked if they function normally.

Also default setting of timer and communication processing of the gate array are performed.For CanoScan FB330P/FB630P, overvoltage detection is also performed to check if an AC

adapter for other scanners is connected and overvoltage is input.The CPU is input with an AC adapter divided voltage, and starts to check the AC adapter input

voltage when the hardware setting in the power ON sequence has completed, then keeps onchecking during standby.

When the CPU judges an overvoltage beyond preset level is input, it stops all processing exceptfor the communication with the host computer and sends an overvoltage detection error to thehost computer.

2) Home position detectionThe CPU detects the home position by detecting a black area and the border between black

and white, using a black mark area and white mark area on the back of the document glass.

Figure 2-7

The CPU moves the scanning unit backward reading image signals to detect a black area.When the black area is detected, the CPU stops the scanning unit.

The CPU moves the scanning unit forward reading image signals with green LED turned ON todetect the border between black and white. When the scanning unit reaches the white mark areaand the peak value of the light intensity to the scanning unit reaches white level, the CPU stopsthe scanning unit. If not all pixels in the vertical scanning direction are white, the CPU movesthe scanning unit forward up to 2 mm until all pixels in the vertical scanning direction are white,where the CPU defines as the home position.

When the hardware setting and home position detection have completed, the scanner is onstandby to wait for a command from the host computer.

Document glass (back side) White mark area

Black mark area

CHAPTER 2


Figure 2-8-1

2. Calibration sequence

Standby

NO

YES

Returns scanning unit 1 mm


Black shadingdata is required?

<Black shading data composition>

Time required

about 0.5 seconds

Obtains 1 line of datato buffer RAM

6 lines of datawas obtained?

YES

NO

Moves scanning unitforward 1 mm

NO

YES

Black datawas transmitted?

Standby

CHAPTER 2


Figure 2-8-2

5

Standby

NO

YES

LED exposure

control is required?


Moves scanning unitforward 2 mm

<LED exposure control>

Time required

about 15 seconds

Sets exposure control mode

R LED ON

Sets LED ON period

Detects peak valueto the CIS

Increases LED ONperiod data

NONO

YES

LED ONperiod is longer than

max. value?YES

Peak light intensityto the CIS is higher than

the preset value?

Sets max. LED ON period

<Peak value detection>

*A

CHAPTER 2


Figure 2-8-3

5

Stores R LED ON period data

NO

Adjusts LED ON period data

YES

Obtains 1 line of white data

<Exposure control data fine adjustment>

Max. value in 1 line of data

is within proper range?

*B Stores R LED ON period data

Changes LED to G and

performs from *A to *B.

Stores G LED ON period data

Changes LED to B and

performs from *A to *B.

Stores B LED ON period data

LED OFF

Moves scanning unitto the home position

Standby

CHAPTER 2


Figure 2-8-4

<White shading data composition>Time requiredabout 3 seconds(per command for each color)

YES

Standby

NO

YES

White shadingdata is required?

Moves scanning unit forward 4 lines


Sets specified LEDparameter to turn ON

Moves scanning unitforward 6 lines

NO

YES

6 lines of datawas obtained?

LED OFF

Obtains 1 line of data to buffer RAM


NOWhite data

was transmitted?

Standby

CHAPTER 2


Calibration is performed when CanoScan FB330P/FB630P has received calibrationcommand from the host computer. Calibration is to compose black shading data and whiteshading data by reading and averaging the black mark and white mark on the back of thedocument glass as color references for the proper color reading.

1) Black shading data compositionBlack shading data is composed by reading and averaging total 18 lines (6 lines x 3 times) of

output from the scanning unit with the LED turned OFF.

2) LED exposure controlLED exposure period is set for proper image output. The peak value of image signal output

from each red, green and blue LED exposure is checked if it is in the range of a preset value. Ifthe peak value is out of the range, LED exposure time is changed. Proper LED exposure periodis set by reading 1 line of an image and checking if it is properly output comparing to thepreset value.

3) White shading data compositionWhite shading data is composed by reading 6 lines of each red, green and blue of the white

mark, making the highest output 4 lines as sample data. This is repeated 3 times and total 12lines of sample data is averaged to be the white shading data.

CHAPTER 2


Figure 2-9-1

3. Document scanning sequence

6

Standby

Document scan is

commanded?

Detects border between

black and white

Calculates the amount of

horizontal scanning data and

the number of vertical scan

motor pulse

Sets scan parameter and

gate array, and initializes

buffer RAM

Moves scanning unit to the

vertical scan start position

Scanning unit

moved?

LED ON

Starts document scan

NO

YES

NO

YES

CHAPTER 2


Figure 2-9-2

6

Scan cancellation

is required?

NO

NO Document was scanned?

YESYES

LED OFF


NO

YES

Scanning unit returnedto the home position?

Stops scanning unitdrive motor

NO

YES

Image datawas transmitted?

Standby

CHAPTER 2


E. Basic Sequences of CanoScan FB630U/FB636U

The basic sequences of CanoScan FB630U/FB636U are divided into power ON sequence,calibration sequence, and document scanning sequence.

1. Power ON sequence

Figure 2-10-1

NO

NO

YES

YES

Scanning unit is in homeposition?

NO

YES

Returned more

than 300 mm?

Power ON

Tests gate arrayread/write

Gate array read/writewas tested normally?

NO

YESSets error flag

Sets error flag

1



Stops scanning unit

CHAPTER 2


Figure 2-10-2

Adjusts LED ONperiod for white

mark area detection

LED ON periodwas adjusted normally?

NO

YESSets error flag

1

LED ON

Detects white mark area

White mark areawas detected normally?

NO

YESSets error flag

Measures USB transmission speed

USB transmissionspeed was measured

normally?

NO

YESSets error flag

Standby

Tests buffer RAMread/write

Buffer RAM read/writewas tested normally?

NO

YESSets error flag

CHAPTER 2


When CanoScan FB630U/FB636U is powered ON, it performs hardware setting, home positiondetection, and USB transmission speed measurement according to the flowchart shown in Figure2-10.

1) Hardware settingGate array and buffer RAM in the main PCB are checked if they function normally.

2) Home position detectionThe scanner detects home position by the home position sensor on the button PCB. The home

position is in a black mark area. Then the scanner moves the scanning unit forward readingimage signals with the LED of the contact image sensor turned ON to detect the border between ablack mark area and white mark area. When the scanning unit has reached the white mark area,and the peak value of the light intensity to the scanning unit has reached a white level, thescanner stops the scanning unit to define there as the border between a black mark area andwhite mark area. The number of steps of the scanning unit drive motor is calculated to define thedistance from the home position to the white mark area.

3) USB transmission speed measurementThe scanner has 2 operation clocks for driving the contact image sensor, the operation clock is

selected by the operation speed of the host computer. The scanner sends the data to the hostcomputer to measure the USB transmission speed to define the operation clock for the contactimage sensor.

When the hardware setting, home position detection and USB transmission speedmeasurement have completed, the scanner is on standby to wait for a command from the hostcomputer.

CHAPTER 2


2. Calibration sequence

Figure 2-11-1

Standby

Black level wascorrected normally?

NO

YESSets error flag

Sets black shadingdata to gate array

NO

YESSets error flag

2

Corrects black level

Data wasobtained normally?

NO

YESSets error flag

Obtains 15 lines of data

Composes blackshading data

Black shading data wasset to gate array normally?

CHAPTER 2


Figure 2-11-2

NO

YESSets error flag

LED ONperiod was adjusted

normally?

NO

YESSets error flag

Adjusts LED ON period

Composes whiteshading data

2

Moves scanning unitto white mark area

Scanning unit moved towhite mark area normally?

LED ON

Obtains 9 lines of data

Data wasobtained normally?

NO

YESSets error flag

LED OFF


Standby

CHAPTER 2


Calibration is performed when CanoScan FB630U/FB636U has received calibrationcommand from the host computer. Calibration is to compose black shading data and whiteshading data by reading and averaging the black mark and white mark on the back of thedocument glass as color references for the proper color reading.

1) Black shading data compositionBlack shading data is composed by reading and averaging total 15 lines of output from the

scanning unit with the LED turned OFF.

2) White shading data compositionWhite shading data is composed by reading 9 lines of each red, green and blue of the white

mark, and averaging the highest 5 lines of output.

CHAPTER 2


3. Document scanning sequence

Figure 2-12

Standby

Scan cancellationis required?

NO

YES

LED ON

Moves scanning unit to thevertical scan start position

Starts document scan

Documentwas scanned?

NO

YES

LED OFF



YES

Stops scanningunit drive motor

Image datawas transmitted?

NO

NO

YES

Standby

CHAPTER 2


II. OPTICAL SYSTEM

A. Outline

The optical system includes the functions of moving the scanning unit by the scanning unitdrive motor, exposing a document by the LED, and collecting the reflected light to thephototransistor array. Contact image sensor is adopted for the scanning unit, which is amodule combined with the LED for light exposing, the rod lens array for light collecting, andthe phototransistor array for light receiving to read per line. The scanning unit drive motorruns by the drive signal sent from the main PCB and drives the scanning unit via the drivepulley and drive wire.

Figure 2-13

Sliding rod



Drive wire

Drive pulley

CHAPTER 2


B. CanoScan FB330P/FB630P Document Scanning Sequence

Figure 2-14

Table 2-1

HPDET STUP SCFW SCAN SCRTNSTBY STBY

5 - 6

G LED only

Sequence

Time required (s)

Scanning unit drive motor (M1)

LED ON signal

Interface signal

(Data 1-8)

Home position

Scan command is received

A4, 300 dpi, 100%, 24 bit color:Reverse

Scanning unit position

Document

scan area

After a power on sequence is completed until the scanner receives a scan command from the host computer.

To maintain the scanner ready for scan.

After the scanner received a scan command until the home position is detected.

To detect the border between black and white to define the home position.

If the detection of the border between black and white is failed, the scanning unit stops there and proceeds to the next step.

After the home position is detected until document scan starts.

To make a gate array setting, buffer RAM initialization, etc. as a preparation for scan.

After the scanning unit starts moving forward until it reaches the starting position of the scan area specified by the host computer.

To move the scanning unit with a uniform speed to the vertical scanning position specified by the host computer.

After the scanning unit starts scanning until all area specified by the hostcomputer are scanned.

To perform various image processing according to the command from the host computer and transmit the image data during scan.

After the scanning unit starts moving backward until it returns to the home position.

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

The distance to the home position is calculated by the distance from the detected home position to the position the scan is completed.

Sequence

STBY(Standby)

HPDET(Home position detection)

STUP(Setup)

SCFW(Scanning unit forward)

SCAN(Document scan)

SCRTN(Scanning unit return)

Purpose Remarks

CHAPTER 2


C. CanoScan FB630U/FB636U Document Scanning Sequence

Figure 2-15

Table 2-2

Sequence

LED ON signal

Scanning unit drive motor (M1)

Interface signal(Data1-8)

STUP SCFW SCAN SCRTNSTBY STBY

A4, 600 dpi, 100%, 24 bit colorReverse

Scan command is received

Scanning unit position

Home position

Document

scan area

Home position sensordetection signal

After a power on sequence is completed until the scanner receives a scan command from the host computer.

To maintain the scanner ready for scan.

After the scanner received a scan command until document scan starts.

To make a gate array setting, buffer RAM initialization, etc. as a preparation for scan.

After the scanning unit starts moving forward until it reaches the starting position of the scan area specified by the host computer.

To move the scanning unit with a uniform speed to the vertical scanning position specified by the host computer.

After the scanning unit starts scanning until all area specified by the hostcomputer are scanned.

To perform various image processing according to the command from the host computer and transmit the image data during scan.

After the scanning unit starts moving backward until it returns to the home position.

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

Home position is determined by the home position sensor.

STUP(Setup)

SCFW(Scanning unit forward)

SCAN(Document scan)

SCRTN(Scanning unit return)

STBY(Standby)

Sequence Purpose Remarks

CHAPTER 2


D. Contact Image Sensor

1. Structure of the contact image sensorFigure 2-16 shows an overview of the contact image sensor with LIDE technology. The

contact image sensor has the LED for exposing a document on the end of glass part called thelight conductor section. When the LED is turned ON, the LED light is supplied to the lightconductor section which exposes a document. That is, the LED light indirectly exposes adocument through the light conductor section. This is called LIDE (LED Indirect Exposure).The light reflected from the document is collected by the phototransistor array through the rodlens array and is read as an image signal.

Figure 2-16

LED

Light conductor section

Phototransistor array

Rod lens array

Reading position

CHAPTER 2


Figure 2-17 shows a cross-sectional view of the contact image sensor for CanoScanFB330P/FB630P, figure 2-18 shows for CanoScan FB630U/FB636U.

Figure 2-17

RG

B

Scanning direction

Reading position

Reflected light

Rod lens array

Illuminated light

Light conductorsection

Phototransistor array(Light receiver section)

Figure 2-18

Phototransistor array(Light receiver section)

Light reflectorsection

Light conductorsection

Illuminated light

Rod lens array

Reflected light

Reading position

RG

B

Scanning direction

CHAPTER 2


The contact image sensor for CanoScan FB330P places 11 phototransistor arrays of 232light phototransistors each in line, and the contact image sensor for CanoScan FB630P/FB630U/FB636U place 8 phototransistor arrays of 644 light phototransistors each in line.Each phototransistor converts the received light into an image signal and outputs the data perline in series.

Figure 2-19

2. Image scanning operationWhen the contact image sensor moves to the image scanning position, the CPU turns the SP

signal to "H" three times per line to light the LED in order of red, green and blue, and reads theimage signal corresponding to each red, green and blue lights. The reading cycle of 1 line is17.1 msec.

When scanning a grayscale image, only green LED is ON and the image signal is processed.

SP

RLED

GLED

BLED

R G B

4.2 ms 4.2 ms 4.2 ms 4.5 ms

R G BImage signaloutput

Figure 2-20

LED

R G B

Image signal

Phototransistor

array

Phototransistor

array

Phototransistor

array

Phototransistor

array

Rod lens array

Sensor

drive

circuitImage

signal

output

CHAPTER 2


D. Scanning Unit Drive Motor Control Circuit

Figure 2-21 shows a block diagram of the scanning unit drive motor control circuit. TheCPU analyzes each command sent from the host computer via gate array and sets to generatePulse Motor Forward Clock (PMFCK) based on the scaling for the gate array. The gate arrayconverts the PMFCK signals into the four phase motor drive pulse signals (PHAP, PHAN, PHBP,PHBN), which are sent to the scanning unit drive motor via the motor driver.

When the host computer changes the resolution, the CPU sets to change the frequency ofthe PMFCK signals for the gate array, then changes the rotating speed of the scanning unitdrive motor.

Figure 2-21

CPU

PHAP

PHAN

PHBP

PHBN

M1

PMENB PMFCK

AP

AN

BP

BN

J3-17

-18

-19

-20

Main PCB

Gate arrayTo host

computer


Motor

driver

CHAPTER 2


III. IMAGE PROCESSING SYSTEM

A. Outline

Figure 2-22 shows a block diagram of the main functions of the image processing system.The image processing system converts the signals read by the contact image sensor into digitaldata, performs various image processing, and outputs the data to the host computer via PCport/USB port. Shading correction and gamma correction are performed by the driver softwareinstead of the scanner function.

Figure 2-22

1. Contactimagesensor

2. A/Dconversion

5. Resolution

conversion

6. Packing To host computer

3. Shading

correction4. Gamma

correction

CHAPTER 2


B. Image Processing Functions

1. Contact image sensorThe CPU outputs clock signals based on the command from the host computer to the

contact image sensor. The contact image sensor lights the LED in order of red, green and blueaccording to the clock signals, then outputs 1 line of image signal proportional to the lightintensity received by the phototransistor.

2. A/D conversionAnalog image signals output from the contact image sensor are converted into the digital

image data of 12 bits each by A/D converter in the analog IC in order of red image signal, greenimage signal, and blue image signal.

3. Shading correctionWhen the contact image sensor reads a document of an even density, the image signal

corresponding to each pixel is not uniform for the following reasons.1) Light intensity of LED is not uniform.2) There is variation in the sensitivity of the light phototransistors.3) There is a slight output from the light phototransistors even when there is no input.These variations are corrected by the shading correction. Calibration data is used as

standard density data when scanning a document. Scanned image data is compared to thestandard density data for the image data correction. The shading correction converts theimage data from 12 bits to 10 bits each color.

4. Gamma correctionShading-corrected red, green and blue image data are divided uniformly into 1024

gradations according to the document density. The contrast and density of this image data areadjusted by the gamma correction. The CPU writes gamma curve specified by the hostcomputer into the buffer RAM before scanning a document. Image scan starts and the imagedata input to the buffer RAM is converted by the gamma curve data and is output.

CHAPTER 2


5. Resolution conversion1) Resolution conversion in the horizontal scanning direction

Basic resolution of CanoScan FB330P is 300 dpi, and selective at 300 dpi, 150 dpi, 75 dpi.Basic resolution of CanoScan FB630P/FB630U/FB636U is 600 dpi, and selective at 600 dpi,300 dpi, 150 dpi, 75 dpi. Resolution conversion in the horizontal scanning direction isperformed by thinning the image data of the basic resolution.

Example: To decrease the resolution to 1/2, image data is output every other pixel.

Figure 2-23

2) Resolution conversion in the vertical scanning directionThe CPU changes the scanning unit moving speed to change the resolution in the vertical

scanning direction. When increasing the resolution, the scanning unit moves at a slow speedto read more lines as shown in Figure 2-25.

Figure 2-24

Figure 2-25

A B C D E F G H

A C E G

Sampling point

Moving direction

Scanning unit

Sampling point

Moving direction

Scanning unit

CHAPTER 2


When decreasing the resolution, the scanning unit moves at a faster speed to read lesslines.

Figure 2-26

6. PackingProcessed image data is stored in the buffer RAM before sent to the host computer. The

buffer RAM is divided into the writing block and reading block. While data is written into thewriting block, the data is read from the reading block. When fixed volume has been written,the writing switches to the reading.

Figure 2-27

Sampling point

Moving direction

Scanning unit

Input Buffer RAM I (for writing)

Buffer RAM II (for reading) Output

Fixed volume has been written

Buffer RAM I (for reading) Output

Input Buffer RAM II (for writing)

The scanner can output 8 bits each and 10 bits each of red, green, and blue images, whilethe buffer RAM can be accessed only by 1 byte (8 bit) because of the hardware configuration.Therefore, when outputting by 10 bits, the data is converted into 8 bits data to write in thebuffer RAM. This process is called a packing.

CHAPTER 2


1

2

3

4

5

6

7

8

AAAAAAAA

1

2

3

4

5

6

7

8

BBBBBBBB

1

2

3

4

5

6

7

8

CCCCCCCC

1

2

3

4

5

6

7

8

DDDDDDDD

9

10

9

10

9

10

9

10

AABBCCDD

1

2

3

4

5

6

7

8

EEEEEEEE

LSB

MSB

Lower 8 bits of

pixels A to D

Higher 2 bits of

pixels A to D

......

Figure 2-28

Figure 2-28 shows the packing process; four 10 bits of pixels A, B, C, and D are divided intohigher 2 bits and lower 8 bits, then converted into five 8 bits of image data.

CHAPTER 2


Host computer Scanner Printer

IV. CONTROL SYSTEM

A. CanoScan FB330P/FB630P

1. OutlineCanoScan FB330P/FB630P control system consists of the CPU and gate array. The CPU

has 7 digital ports. P0, P2, P3, P6, and P7 are for generating control signals in the main PCB.P4 is for address bus and data bus (AD-AD7) and P5 is for address bus (A8-A15). P7 is mainlyfor inputting a function check mode setting.

Figure 2-29

2. Control Switching Between Printer And ScannerCanoScan FB330P/FB630P has two parallel ports which allow to connect in order of the

host computer, scanner and printer as shown in Figure 2-30. When the host computer sendsthe signal to start the communication with the scanner, the control is switched between printerand scanner.

Figure 2-30

The host computer sends the command to select the scanner or the printer to communicatewith.

Gate ArrayP0, P2, P3,P6, P7

AD0~7

A8~15CPU

P4

P5

To host computerControl signal

CHAPTER 2


When the host computer sends the signal to start the communication with the scanner, thescanner disconnects the control line from the host computer to the printer, meanwhile thesignal sent from the host computer to the printer is ignored.

Host

computer

Scanner

Disconnected

Printer

Figure 2-32

When the host computer sends the signal to terminate the communication with the scanner,the scanner stops the operation and disconnects the communication with the host computer.The scanner reconnects the control line from the host computer to the printer and switches itto the printer.

Host

computerScanner

Monitorsthe command

Printer

Figure 2-31

When the scanner is ON, parallel port signals are directly sent to the printer, meanwhile thescanner monitors the command sent from the host computer.

CHAPTER 2


B. CanoScan FB630U/FB636U

1. OutlineCanoScan FB630U/FB636U is not equipped with the CPU and the scanner is controlled by

the device driver installed in the host computer. The device driver includes the scanner controlprogram, which sets a command directly to the gate array register to control the scanner.

2. Outline of USBCanoScan FB630U/FB636U is connected to the host computer via USB interface.USB (Universal Serial Bus) is the next generation general-purpose input-output interface to

connect the computer peripheral devices.1) Features of USB include;* Connects peripheral devices to a computer.* Connects up to 127 devices by a tree structure.* Connects by 12 Mbps of "full speed mode" or 1.5 Mbps of "low speed mode". CanoScan

FB630U/FB636U is conforming to "full speed mode".* Supports hot plug (able to connect/disconnect with the power ON).

2) Connection to USB devicesUSB devices are connected to a host computer by a tree structure consisting of device

called "node" and "hub" which is a group of "node" as shown in Figure 2-33. The treestructure has the following conditions.* Able to connect up to 127 "node" and "hub" in total.* Limited up to 6 layers.* USB cable must be 5 meters or shorter.

Host computer

Hub 1

Hub 2

Hub 3

Hub 4

Hub 5

Node

Node

Hub 6

Node

Node

Node

Node

Node

Node

Node

Figure 2-33

CHAPTER 2


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

3) USB data transferUSB data is transferred in the following 4 data structures called "packet".* Token packet : Used to start a data transfer* Handshake packet : Used to report the status of a data transfer* Data packet : Used to send and receive data* Special packet : Used for other transfer

USB device may support multiple data transfer endpoints, so there are 4 types of datatransfer protocols.* Isochronous transfer : Allocates a data transfer time to a device. Highest priority is given but

any error is not corrected.* Interrupt transfer : Periodically transfers data within a specified waiting time. Second

priority is given.* Control transfer : Used to configure the host computer when USB device is attached/

removed.* Bulk transfer : Lowest priority is given but larger amounts of data is sequentially

transferred to a free bus.

Figure 2-34

A Plug B Plug

CHAPTER 2


V. POWER SUPPLY

A. CanoScan FB330P/FB630PAC adapter is adopted for the CanoScan FB330P/FB630P power source. The AC adapter

converts the AC power into +10.5 VDC. The output DC power is converted into +5 VDC in themain PCB. +5 VDC is used for the IC in the main PCB, the scanning unit drive motor and thecontact image sensor.

The scanner has an overvoltage detection function to check if an AC adapter for otherscanner is connected and overvoltage is input.

The CPU performs A/D conversion of an AC adapter divided voltage input to P17 port, andstarts to check when the hardware setting in the power ON sequence has completed, thenkeeps on checking during standby.

When the CPU judges an overvoltage beyond preset level is input, it stops all processingexcept for the communication with the host computer and sends an overvoltage detection errorto the host computer.

Figure 2-35

AC power

Main PCBAC adapter

AC/DCconversion

circuit


Contactimage sensor

+10.5 VDC +5 VDCconversion

circuit

CHAPTER 2


B. CanoScan FB630U/FB636UCanoScan FB630U/FB636U draws its power +5 VDC from USB interface. +5 VDC is used

for the IC in the main PCB, the scanning unit drive motor and the contact image sensor.

Figure 2-36

+5 VDC

Main PCB


Contactimage sensor

Host computer

USB port


CHAPTER 3

MECHANICAL SYSTEM

I. EXTERNALS ................................ 3-1

II. DRIVE SYSTEM ........................... 3-7

III. OPTICAL SYSTEM ..................... 3-11

IV. PCB ............................................ 3-15

CHAPTER 3


I. EXTERNALS

FB330P/FB630P model is used in the figures unless the description is specific to U model.

When cleaning, checking or repairing inside the scanner, remove the necessary covers usingthe following procedures.

A. Covers

q Document Coverw Document Glass Unite Base Frame

Figure 3-1

A4LTR

B5

A4LTR

B5

1

2

3

CHAPTER 3


1. Removing the document cover1) Pull the hinge unit of the document cover to the left, remove the right hinge unit, then warp

the document cover to remove.

q Document Coverw Hinge Unit

Figure 3-2

1

2

A4LTR

B5

A4LTR

B5

3

1

2

CHAPTER 3


2. Removing the document glass unit1) Remove the document cover.2) Unhook the hook on the front of the document glass unit, then lift the hook part.

1 2 3

A4LTR

B5

A4LTR

B5

q Hookw Hook Parte Document Glass Unit

Figure 3-3

Note: Take care not to lift the hook part excessively as it is attached to the document glass with a double-sided tape.

CHAPTER 3


3) Unhook the hook on the rear of the document glass unit, then slide the document glassunit forward.

A4LTR

B5

A4LTR

B5

1

2

q Hookw Document Glass Unit

Figure 3-4

Note: When unhooking the hook on the rear of the document glass unit, use thin item like a pin to avoid making a flaw.

CHAPTER 3


4) Lift the rear of the document glass unit, then pull backward to remove it.

A4LTR

B5

LTR

B5

A4 1

2

Figure 3-5

Note: Take care not to touch the rear side of the document glass unit (especially the spacer sliding surface on both sides) with hand to prevent dirt.

CHAPTER 3


3. Precaution when attaching the document glass unit1) Attach the document glass unit pressing toward the front of the scanner as a standard

position.

Figure 3-6

Note: Take care not to touch the rear side of the document glass unit (especially the spacer sliding surface on both sides) with hand to prevent dirt.

A4LTR

B5

A4LTR

B5

CHAPTER 3


II. DRIVE SYSTEM

A. Scanning Unit Drive Part

1. Removing the drive unit1) Remove the document cover.2) Remove the document glass unit.3) Remove the seal (to be reused), pull the drive wire backward to remove it from the base

frame through the left hole.

1

2

q Wire Stopperw Seal

Figure 3-7

Note: Take care not to damage or lose the seal to reuse it.

CHAPTER 3


4) Move the drive unit to the center.

q Drive Unitw Drive Wiree Sealr Main PCB

Figure 3-8

5) Remove the contact image sensor. (Refer to III. A. 1, step 4), 5))6) Remove the flat cable from the main PCB.7) Remove the drive unit.

1

2

2

4

CHAPTER 3


2. Precautions when attaching the drive unit1) Apply appropriate amount of grease (as indicated by the quantity of rice piece) to the

positions shown in the figure below.2) Locate the drive wire as shown in Figure 3-9.3) Reuse the seal.4) Connect the flat cable to the main PCB through a ferrite core, then take up the slack in the

flat cable.

q Grease Applying Positionsw Drive Wiree Wire Springr Ferrite Core

Figure 3-9

11

13

2

43

CHAPTER 3


3. Removing the drive wire1) Remove the document cover.2) Remove the document glass unit.3) Remove the seal.4) Pull the drive wire backward to remove it from the base frame through the left hole. (See

Figure 3-7)5) Remove the wire spring from the base frame. (See Figure 3-9)

4. Precautions when attaching the drive wire1) When the drive wire is twisted, untwist the wire naturally but not forcefully.2) Locate the drive wire as shown in Figure 3-9.

CHAPTER 3


III. OPTICAL SYSTEM

A. Contact Image Sensor

1. Removing the contact image sensor1) Remove the document cover.2) Remove the document glass unit.3) Move the drive unit to the center. (Refer to II. A. 1, step 3), 4))4) Remove 2 spacers at both ends of the contact image sensor.

A4LTR

B5

12 1

2

q Drive Unitw Spacer (FB330P Left : White, Right : Blue) (FB630P Left : Gray, Right : Black)

(FB630U Left : Green, Right : Green) (FB636U Left : Green, Right : Green)

Figure 3-10

CHAPTER 3


5) Hold up the front side of the contact image sensor to slide it to the left (See Figure 3-10,arrow q, w), remove the hinges, remove the flat cable, then remove the contact imagesensor.

q Contact Image Sensorw Hingee Flat Cabler Spring

Figure 3-11

Note: Take care not to touch the glass surface of the contact image sensor, nor lose the spring that holds the contact image sensor when removing it.

A4LTR

B5

1 2

3

4

CHAPTER 3


2. Precautions when attaching the contact image sensor1) Take care not to touch the glass surface of the contact image sensor.2) Attach the flat cable, U-fold and push it in the recess under the connector as shown in

Figure 3-12 (FB330P/FB630P).

q Connectorw Recess under the Connector

Figure 3-12

A4LTR

B5

1

2

CHAPTER 3


3) Align the q part on the contact image sensor with the w part on the drive unit as shown inFigure 3-13 when attaching the contact image sensor to the drive unit.

Figure 3-13

A4LTR

B5

1

2

CHAPTER 3


IV. PCB

A. Main PCB

1. Removing the Main PCB (FB330P/FB630P)1) Remove the document cover.2) Remove the document glass unit.3) Remove the flat cable, 3 screws, then remove the main PCB.

q Flat Cablew Screwe Main PCB

Figure 3-14

A4LTR

B5

1

3

2

CHAPTER 3


2. Removing the Main PCB (FB630U/FB636U)1) Remove the document cover.2) Remove the document glass unit.3) Remove 2 flat cables, 3 screws, then remove the main PCB.

q Screww Main PCBe Flat Cable

Figure 3-15

3. Precautions when attaching the main PCB1) Pull the flat cable toward the drive unit to take up the slack in the flat cable after the main

PCB is attached.

A4LTR

B5

3

1

2

CHAPTER 3


B. Button PCB

1. Removing the button PCB (FB630U/FB636U)1) Remove the document cover.2) Remove the document glass unit.3) Move the drive unit to the center. (Refer to II. A. 1, step 3), 4))4) Remove 2 screws to remove the button PCB.5) Remove the flat cable to remove the start button, caring not to lose the button spring.

q Button PCBw Flat Cablee Screw

Figure 3-16

q Start Buttonw Button Springe Button PCB

Figure 3-17

21 3

1 2 3


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


No.

1 Grease TKC-0955To be applied to the sliding part between the scanningunit and sliding rod.MOLYKOTE EM-50L

Name Tool No. Usage / Remarks

I. PERIODICAL REPLACEMENT PARTS

None

II. CONSUMABLE PARTS DURABILITY

None

III.PERIODICAL SERVICING

None

IV. SPECIAL TOOLS

None

V. SOLVENTS AND LUBRICANTS

Lubricants used for disassembly and reassembly of the scanner.

Table 4-1


CHAPTER 5

TROUBLESHOOTING

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

II. TROUBLESHOOTING .................. 5-2

III. LOCATION OF

ELECTRICAL PARTS ................... 5-4

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

CHAPTER 5


I. INTRODUCTION

A. Initial Check

Check if the operating environment conforms to the following conditions.

1. Line voltage is within ±10% of the rated value.

2. Ambient temperature and humidity conform to the operating environment. (Refer toCHAPTER 1, II. SPECIFICATIONS)

3. The scanner is not installed near a water faucet, boiler, humidifier, open flame, or in dustyplace.

4. The scanner is not exposed to direct sunlight. If it is unavoidable to install in a sunnyplace, hang a curtain to block direct sunlight.

5. The scanner is installed 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

Causes and corrective actions for possible image defects and malfunctions during operationare described below.

A. Troubleshooting Image Defects

1. Image not outputCause 1 : Faulty connection of the parallel cable/USB cableCorrective action : Securely connect the parallel cable/USB cable.

Cause 2 : Faulty contact image sensorCorrective action : Replace the contact image sensor.

Cause 3 : Faulty main PCBCorrective action : Replace the main PCB.

2. Uneven image density or linesCause 1 : Dirt on the document cover or document glassCorrective action : Clean the document cover or document glass.

Cause 2 : Faulty calibration dataCorrective action : Perform the calibration.

Cause 3 : External light is entering into the scanner. External light entering intothe contact image sensor can cause uneven image density.

Corrective action : Fully close the document cover. If it is impossible, cover with a sheetetc. to prevent external light.



CHAPTER 5


B. Troubleshooting Malfunctions

1. Host computer not detecting the scannerCause 1 : Faulty installation of the device driverCorrective action : Reinstall the device driver.

Cause 2 : The scanner is not powered ON. (FB330P/FB630P)Corrective action : Securely connect the AC adapter to the scanner.

Cause 3 : Faulty connection of the parallel cable/USB cableCorrective action : Securely connect the parallel cable/USB cable to the scanner and host

computer.

Cause 4 : Faulty parallel port setting of the host computer (FB330P/FB630P)Corrective action : Reset the host computer's parallel port setting of transmission method

(ECP, EPP, Bidirectional, or Standard) and I/O port address.


2. Scanner not operatingCause 1 : Lock switch is not unlocked.Corrective action : Unlock the lock switch.

Cause 2 : Faulty connection of the flat cableCorrective action : Securely connect the flat cable to the contact image sensor and main

PCB.



3. Scanning unit drive motor not runningCause 1 : Faulty connection of the flat cable connectorCorrective action : Securely connect the flat cable connector.

Cause 2 : Faulty scanning unit drive motorCorrective action : Replace the drive unit.


4. LED of the contact image sensor not lightingCause 1 : Faulty connection of the connectorCorrective action : Securely connect the flat cable.


CHAPTER 5


III. LOCATION OF ELECTRICAL PARTS

CanoScan FB330P/FB630P

q Main PCBw Contact Image Sensore Scanning Unit Drive Motor

Figure 5-1

1

2

3

CHAPTER 5



q Main PCBw Contact Image Sensore Home Position Sensorr Start Buttont Scanning Unit Drive Motor

Figure 5-2

1

2

5

3

4

CHAPTER 5


IV. CANON SCANNER TEST

A. Outline

Canon Scanner Test is utility software to check if faulty scanner operation is due tohardware or communication with a host computer.

CanoScan FB330P/FB630P : Scnfbp.exeCanoScan FB630U/FB636U : ScanTestU.exe

B. Canon Scanner Test for CanoScan FB330P/FB630P

1. Operating environment1) CanoScan FB330P/FB630P2) PC/AT Compatibles (Pentium or faster is recommended.)3) Windows95/98/NT Operating System4) Scanner Device Driver

Note: Install the scanner device driver before using the Canon Scanner Test.

2. FunctionsCanon Scanner Test has the following functions.

1) Scanner InformationProduct ID, ROM version, etc. are shown when the scanner is properly communicated with

the host computer.

2) CalibrationCalibration for the scanner is performed.

3) Save Test DataContact image sensor output is tested and saved as text data "test_dat.txt" in the same

folder with the Canon Scanner Test.

4) ScanAny image is scanned and saved as image file in the same folder with the Canon Scanner

Test.

CHAPTER 5


3. Functions descriptions1) Scanner Information

Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-3.

Figure 5-3

· LPT No. : Parallel Port No. where the scanner is connected.· P1284 Mode : Communication status between the scanner and host computer. Hardware

ECP(DMA), Hardware ECP, Software ECP, or Nibble.· Product ID : Product name of the scanner connected.· ROM Version : Firmware version within the scanner.

CHAPTER 5


2) CalibrationSelect "Calibration" from the "Function" menu to display a dialog as shown in Figure 5-4.

Figure 5-4

Click "OK" to perform calibration. When it has completed normally, a dialog as shown inFigure 5-5 is displayed.

Figure 5-5

CHAPTER 5


3) Save Test DataSelect "Save Test Data" from the "Function" menu to display a dialog as shown in Figure 5-6.

Figure 5-6

When test data has been saved, a dialog as shown in Figure 5-7 is displayed. Click "OK" toclose the function.

Figure 5-7

CHAPTER 5


Figure 5-8

· Resolution : Set a resolution for the image to be scanned. FB330P is selectable at 75/150/300 dpi, FB620P is selectable at 75/150/300/600 dpi.

· How to Scan : Set a processing method of the scanned image. When "Read in memory (nofile)" is selected, scanned image is read into the memory, then abandonedafter readout. When "Save to TIFF file" is selected, the file of "img0.tif" is setup in the same folder with the Canon Scanner Test.

File space to be created is as follows. 75 dpi : Approx. 1.6 MByte150 dpi : Approx. 6.5 MByte300 dpi : Approx. 26.2 MByte600 dpi : Approx. 105 MByte

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

4) ScanSelect "Scan" from the "Function" menu to display a dialog as shown in Figure 5-8.

CHAPTER 5


4. Error Message

Error messages which may occur during Canon Scanner Test, the cause and correctiveactions are described below.

1) When Canon Scanner Test is started, "A required .DLL file, SIFBP2.DLL, was notfound" is displayed.

Cause : Device driver for the scanner is not installed in the host computer.Corrective action : Install the device driver.

2) When Canon Scanner Test is executed, "Parallel port is used by other applications" isdisplayed.

Cause 1 : Scanner is not detected by the host computer.Corrective action : Properly detect the scanner by the host computer.

Cause 2 : Device drive occupies the parallel port.Corrective action : Delete the device driver that uses the parallel port.

3) When Canon Scanner Test is executed, "Lamp Error" is displayed.Cause 1 : Faulty flat cableCorrective Action : Check the flat cable connector. If it has no problem, replace the drive

unit.

Cause 2 : Faulty contact image sensorCorrective Action : Replace the contact image sensor.

4) When Canon Scanner Test is executed, "Overvoltage Error" is displayed.Cause 1 : Non-conforming AC adapter is used.Corrective Action : Use the AC adapter supplied to the scanner.

Cause 2 : Faulty AC adapterCorrective Action : Replace the AC adapter.

Cause 3 : Faulty main PCBCorrective Action : Replace the main PCB.

5) "File Open Error" is displayed.Cause : Canon Scanner Test is started from a CD-ROM or write-protect HDD.Corrective Action : Copy the Canon Scanner Test on a writable HDD to use.

CHAPTER 5


C. Canon Scanner Test USB for CanoScan FB630U/FB636U

1. Operating environment

Windows environment1) CanoScan FB630U/FB636U2) PC/AT Compatibles (Pentium or faster is recommended.)3) Windows98 Operating System4) Scanner Device Driver

Macintosh environment1) CanoScan FB630U/FB636U2) Power Macintosh3) Macintosh OS (Version 8.5 or later)4) Scanner Device Driver

Note: Install the scanner device driver before using the Canon Scanner Test USB.

2. FunctionsCanon Scanner Test USB has the following functions.

1) USB Information (Windows only)Scanner information recognized by Windows.

2) Scanner InformationProduct ID, ROM version, etc. are shown when the scanner is properly communicated with

the host computer.

3) Self TestScanner self test is performed.

4) Save Test DataContact image sensor output is tested and saved as text data "test_dat2.txt" and

"test_dat4.txt" in the same folder with the Canon Scanner Test USB.

5) ScanAny image is scanned and saved as image file in the same folder with the Canon Scanner

Test USB.

6) Start Button Check (Windows only)Operation of the Start Button on the front of the scanner is checked.

CHAPTER 5


3. Functions descriptions1) USB Information

Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-9.

Figure 5-9

· Device Internal Name : Serial No. of the imaging device recognized by Windows.· Vendor Descrition : Manufacturer name (Canon) of the scanner connected.· Device Description : Product name of the scanner connected.· Port Name : Port name of the scanner recognized by Windows.· Local Name : Product name of the scanner connected.

CHAPTER 5


2) Scanner InformationSelect "Scanner Information" from the "Function" menu to display as shown in Figure 5-10

(Windows) or Figure 5-11 (Macintosh).

Figure 5-10

Figure 5-11

· Vendor ID : Manufacturer name (Canon) of the scanner connected.· Product ID : Product name of the scanner connected.· ROM Version : Scanner controller version.

CHAPTER 5


3) Self TestSelect "Self Test" from the "Function" menu to display a dialog as shown in Figure 5-12


Figure 5-12

Figure 5-13

CHAPTER 5


Click "OK" to perform Self Test. When it has completed normally, a dialog as shown inFigure 5-14 or Figure 5-15 is displayed.

Figure 5-14

Figure 5-15

CHAPTER 5


4) Save Test DataSelect "Save Test Data" from the "Function" menu to display a dialog as shown in Figure 5-16

(Windows) or 5-17 (Macintosh).

Figure 5-16

Figure 5-17

CHAPTER 5


Click "OK" to save test data. When test data has been saved, a dialog as shown in Figure 5-18 (Windows) or Figure 5-19 (Macintosh) is displayed.

Figure 5-18

Figure 5-19

CHAPTER 5


5) ScanSelect "Scan" from the "Function" menu to display a dialog as shown in Figure 5-20


Figure 5-20

CHAPTER 5


Figure 5-21

· Resolution : Set a resolution for the image to be scanned.· How to Scan : Set a processing method of the scanned image. When "Read in memory (no

file)" is selected, scanned image is read into the memory, then abandonedafter readout. When "Save to TIFF file" is selected, the file of "img0.tif" is setup in the same folder with the Canon Scanner Test USB.

File space to be created is as follows. 75 dpi : Approx. 1.6 MByte150 dpi : Approx. 6.5 MByte300 dpi : Approx. 26.2 MByte600 dpi : Approx. 105 MByte

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

CHAPTER 5


6) Start Button TestWhen the start button is pressed during the Canon Scanner Test USB, a dialog as shown in

Figure 5-22 is displayed.

Figure 5-22

CHAPTER 5


4. Error Message

Error messages which may occur during Canon Scanner Test USB, the cause andcorrective actions are described below.

1) When Canon Scanner Test USB is started, "Could not find USB scanner" is displayed.Cause 1 : Device driver for the scanner is not installed in the host computer.Corrective action : Install the device driver.


2) Scanner Information is not displayed or "Command Inquiry : Scan Head PositioningError Occurs" is displayd.

Cause 1 : Lock switch is locked.Corrective action : Unlock the lock switch.


Cause 3 : Faulty flat cableCorrective Action : Check the flat cable connector. If it has no problem, replace the drive

unit.

Cause 4 : Faulty contact image sensorCorrective Action : Replace the contact image sensor.

Cause 5 : Faulty main PCBCorrective Action : Replace the main PCB.

3) When the start button is pressed, information is not displayed.Cause 1 : Canon Scanner Test USB for Macintosh is executed.Corrective Action : Canon Scanner Test USB for Macintosh does not have the start button

test function.

Cause 2 : Faulty button PCBCorrective Action : Check the connector. If it has no problem, replace the button PCB.

4) "File Open Error" is displayed.Cause : Canon Scanner Test USB is started from a CD-ROM or write-protect

HDD.Corrective Action : Copy the Canon Scanner Test USB on a writable HDD to use.


CHAPTER 6

PARTS CATALOG

CanoScan FB330P/CanoScan FB630P

..................................................... 6-1


..................................................... 6-7

COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 6 - 1

CanoScan FB330P/CanoScan FB630P


ACCESSORYFIGURE P01

1

2

3

4

5

6

7


FIGURE&

KEY NO.DESCRIPTION SERIAL NUMBER/REMARKS

Q'TY

PART NUMBERRANK

P01-01

02

03

04

05

06

07

104-0095-0SP

003-2119-0SP

003-2120-0SP

003-2121-0SP

003-2122-0SP

003-2123-0SP

003-2147-0SP

104-0141-0SP

104-0140-0SP

002-0632-0SP

003-7204-0SP

CABLE, INTERFACE

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

ADAPTOR, AC

POWER CORD

POWER CORD

STAND ASSEMBLY

TAPE

1

1

1

1

1

1

1

1

1

1

1

JAPAN

CANADA, LA, HK

EUR, SINGAPORE, LA

UK

AUSTRALIA

ARG, CHINA

ARG

CHINA


1

2

3

3

4

5

65

7

8

9

10

11

1213

15

14

A4LTR

B5

A4LTR

B5

FB330P/FB630P MAIN BODYFIGURE P10


FIGURE&


Q'TY

PART NUMBERRANK

P10-01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

002-0619-0SP

002-0624-0SP

052-0129-0SP

052-0126-0SP

060-0096-0SP

060-0097-0SP

071-0021-0SP

002-0666-0SP

NPN

057-0016-0SP

053-0088-0SP

NPN

053-0085-0SP

077-0503-0SP

077-0812-0SP

002-0623-0SP

002-0628-0SP

084-0167-0SP

DOCUMENT COVER ASSEMBLY

PLATEN GLASS ASSEMBLY

SPACER SET

SPACER SET

CONTACT IMAGE SENSOR


SPRING

SENSOR DRIVE ASSEMBLY

SLIDING ROD

WIRE, DRIVE

HOOK

BASE FRAME

LOCK, CARRIAGE

SCREW, M3X5, SELF-TAPP


MAIN PCB ASSEMBLY

MAIN PCB ASSEMBLY

SEAL

1

1

1

1

1

1

2

1

1

1

1

1

1

2

1

1

1

1

FB330P

FB630P

FB330P

FB630P

FB330P

FB630P





ACCESSORYFIGURE U01

2

1

3


FIGURE&


Q'TY

PART NUMBERRANK

U01-01

02

03

104-0119-0SP

104-0138-0SP

002-0632-0SP

003-7204-0SP

CABLE, USB

CABLE, USB

STAND ASSEMBLY

TAPE

1

1

1

1

FB630U

FB636U


FB630U MAIN BODYFIGURE U10

A4LTR

B5

1

3

4

5

6

7

8

10

11

12

13

19

17

18

2

9

16

1514

A4LTR

B5

3

5


FIGURE&


Q'TY

PART NUMBERRANK

U10-01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

002-0619-0SP

002-0624-0SP

052-0130-0SP

060-0100-0SP

071-0021-0SP

002-0667-0SP

NPN

057-0016-0SP

053-0088-0SP

NPN

053-0085-0SP

077-0503-0SP

077-0620-0SP

004-0313-0SP

084-0167-0SP

004-0315-0SP

053-0089-0SP

104-0133-0SP

071-0022-0SP



SPACER SET


SPRING


SLIDING ROD

WIRE, DRIVE

HOOK

BASE FRAME

LOCK, CARRIAGE



MAIN PCB ASSEMBLY

SEAL

BUTTON PCB ASSEMBLY

BUTTON, FUNCTION

CABLE, FLAT (BUTTON)

SPRING, BUTTON

1

1

1

1

2

1

1

1

1

1

1

3

2

1

1

1

1

1

2


FB636U MAIN BODYFIGURE U20

A4LTR

B5

A4LTR

B5

8

12

13

1415

19

17

18

1

3

4

5

6

7

10

11

9

16

2

3


FIGURE&


Q'TY

PART NUMBERRANK

U20-01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

17

18

19

002-0669-0SP

002-0668-0SP

052-0130-0SP

003-5206-0SP

071-0021-0SP

002-0667-0SP

NPN

057-0016-0SP

053-0088-0SP

NPN

053-0099-0SP

077-0503-0SP

077-0620-0SP

004-0313-0SP

084-0168-0SP

004-0315-0SP

053-0089-0SP

104-0133-0SP

071-0022-0SP



SPACER SET


SPRING


SLIDING ROD

WIRE, DRIVE

HOOK

BASE FRAME

LOCK, CARRIAGE



MAIN PCB ASSEMBLY

SEAL

BUTTON PCB ASSEMBLY

BUTTON, FUNCTION

CABLE, FLAT (BUTTON)

SPRING, BUTTON

1

1

1

1

2

1

1

1

1

1

1

3

2

1

1

1

1

1

2


I. GENERAL CIRCUIT DIAGRAM

(CanoScan FB330P/FB630P) ......... A-1

II. GENERAL CIRCUIT DIAGRAM

(CanoScan FB630U/FB636U) ........ A-2

III. MAIN PCB CIRCUIT DIAGRAM

(CanoScan FB330P) ...................... A-3

APPENDIX

IV. MAIN PCB CIRCUIT DIAGRAM

(CanoScan FB630P) ...................... A-8

V. MAIN PCB CIRCUIT DIAGRAM

(CanoScan FB630U/FB636U) ...... A-13

A - 1COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

I. GENERAL CIRCUIT DIAGRAM (CanoScan FB330P/FB630P)

123456789

1011121314151617181920

VOUTNCAGNDVCCVREFSPCLKLED COMMONBLEDGLEDRLEDFGNDNCNCNCNCAPANBPBN

12

+10.5VGND

M1

J2

J4

CS1

J3 J5

1 HSTB

2 IF0

3 IF1

4 IF2

5 IF3

6 IF4

7 IF5

8 IF6

910

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

IF7

HACK

HXBSY

HXPERR

HXSEL

HATFD

HFALT

HAINTT

HSELIN

GND

GND

GND

GND

GND

GND

GND

GND

GND

GNDGND

GND

GND

GND

GND

GND

8

910

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

1

2

3

4

5

6

7

IF0

IF1

IF2

IF3

IF4

IF5

IF6

IF7

PSTB

PACK

PXBSY

PSPERR

PXSEL

PATFD

PFALT

PAINTT

PSELIN

J3

J5


Main PCB

Contactimage sensor

A - 2 COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

II. GENERAL CIRCUIT DIAGRAM (CanoScan FB630U/FB636U)

123456789

1011121314151617

VobNCAGNDVcisVrefTRPH1VccBGRGNDGNDPA+PA-PB+PB-

1234

HMSENGNDVCCBTON

1234

+5VD-D+GNDM1

J1

J2

J3

CS1


Main PCB

Contactimage sensor

Button PCB


III. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB330P)(1/5)

(+Volt)J2

132

1

2

3

4

L1

C7

C6

C14

C15

C5

Q2

C10 C8 C49

-+5R

+5M

VCC

1 3

2G

I OFBI

2

S1

G

I O

+

26

139

3

1

714

8

411

51210

PHAPPHANPHBPPHBN

APANBPBN

U1

IN1IN2IN3IN4

VS1VS2

GNDGND

VCONT VCC

OUT1OUT2OUT3OUT4

1 3Q1

++


(2/5)

BUFA0BUFA1BUFA2BUFA3BUFA4BUFA5BUFA6BUFA7BUFA8BUFA9BUFA10BUFA11BUFA12BUFA13BUFA14BUFA15BUFA16

A0 VO0VO1VO2VO3VO4VO5VO6VO7

VCC

E2

WEG

E1

A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16

GN

D16

U7

121110

98765

27262325

428

331

2

1314151718192021

32

30

292422

VOC

BFWENBFOEN

BFCEN

BUFA0BUFA1BUFA2BUFA3



BUFA12BUFA13BUFA14BUFA15BUFA16BFWENBFOEN

C38

C48

123456789

10111213141516171819202122232425262728293031323334353637383940

C47

VDDBFD7BFD6BFD5BFD4BFD3BFD2BFD1BFD0BUFA0BUFA1BUFA2BUFA3AVDDAGNDBUFA4BUFA5BUFA6BUFA7VDDVSSBUFA8BUFA9BUFA10BUFA11AVDDAVSSBUFA12BUFA13BUFA14BUFA15BUFA16BFWENBFOENTSTFLGTESTMDTESTCSNXIFDIRXIFENVDD

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

VS

SV

SS

PA

CK

PX

BS

YP

XP

ER

RP

XS

EL

PFA

LTA

VD

DA

VS

SP

ST

BP

AT

FD

PIN

ITP

SE

LIN

AV

DD

AV

SS

HA

CK

HX

BS

YH

XP

ER

RH

XS

EL

HFA

LTH

ST

BH

AT

FD

HIN

ITH

SE

LIN

AV

DD

AV

SS

IFD

0IF

D1

IFD

2A

VD

DA

VS

SIF

D3

IFD

4IF

D5

AV

DD

AV

SS

IFD

6IF

D7

VS

SV

SS

PACKPXBSYPXPERRPXSELPFALT

HACKHXBSYHXPERRHXSELHFALT

PSTB

IFD0IFD1IFD2IFD3IFD4IFD5IFD6IFD7

HATFDHSTB

HINITHSELIN

PATFDPINIT

PSELIN

C34

I16MRESETN

LSYNGPMFCK

XINTRDNWRNASTB

BAD0BAD1BAD2BAD3BAD4

BAD5BAD6BAD7HA8HA9HA10HA11HA12HA13HA14HA15ACCL

BUFSELDMAWRPMENBHBSYINUPBSYUPACK

OHSYNC

C24

AD10AD11AD12AD13AD14AD15AD16AD17AD18AD19AD110AD111

TP8

R31

R32

SHCLK

ADCLK

BLEDONGLEDONRLEDONORSCKOTRCKOCPCK

PHBNPHBPPHANPHAP

CP3Check Pad

R16B4T

C27

BITBIT Y1

VCC

C20

R4

FB21 2 3 4

U4A U4B

I16M

C21

VCC

12011911811711611511411311211111010910810710610510410310210110099989796959493929190898887868584838281

VDDAVSSI16M

IRESETIHSYNC

OHSYNCLSYNCPMFCK

XINTRDNWRNASTBAVSSAVDDBAD0BAD1BAD2BAD3BAD4

VSSVDD

BAD5BAD6BAD7

HA8HA9

HA10HA11HA12HA13HA14HA15ACCL


VDD

C28

C50

160

159

158

157

156

155

154

153

152

151

150

149

148

147

146

145

144

143

142

141

140

139

138

137

136

135

134

133

132

131

120

129

128

127

126

125

124

123

122

121

VS

SV

SS

AR

CP

SH

CLK

AD

CLK

AD

I11

AD

I10

AD

19A

D18

AD

17A

D16

AD

15A

D14

AD

13A

D12

AD

11A

D10

AV

SS

AV

DD

BLE

DG

LED

ON

RLE

DO

NO

RS

CK

OT

RC

KO

CP

CK

CS

CLK

AV

SS

AV

DD

PH

BN

PH

BP

PH

AN

PH

AP

AV

SS

AV

DD

B8T

B4T

B2T

B1T

VS

SV

SS

C30

U5

C25


(3/5)

1234

8765

RA3

1234

8765

RA6

HA15HA14HA13HA12HA11HA10HA9HA8

ACCLADCEN

DMAWRBUFSEL

PMENB


123456789

10111213141516

48474645444342414039383736353433

BAD0BAD1BAD2BAD3BAD4BAD5BAD6BAD7

R35

VCC

C26

SDCLKBFCEN

SDIOSDCLK

BFCEN

ASTBASTBWRNRDN

WRNRDN

VCC

R33

R34

VCC

C18

VCC

R3

TP7TP6

TP5TP3

TP4TP2

TP1

+5M

R5

U4FU4F

D1

C22

101312 11

RESETN

C12

C13

For Function Checker

R36

VCC

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

XINTPMFCKLSYNC

OHSYNC

XINTPMFCKLSYNC

OHSYNC

CP1Check Pad

U2 R13

R12C23

U4D U4CB4T

8 9 6 5


P50/A8P51/A9P52/A10P53/A11P54/A12P55/A13P56/A14P57/A15VSS0VDD0P30P31P32P33P34/S131P35/SO32

P71/TI01P70/TI00/TO0

P03/INTP3/ADTRGP02/INTP2P01/INTP1P00/INTP0

VSS1X1X2IC

XT1XT2

RESETAVDD

AVREFP10/AN10

P36

/SC

K31

P20

/SI3

0P

21/S

O30

P22

/SC

K30

P23

/RxD

0P

24/T

xD0

P25

/AS

CK

0V

DD

IA

VS

SP

17/A

N17

P16

/AN

16P

15/A

N15

P14

/AN

14P

13/A

N13

P12

/AN

12P

11/A

N11

P47

/AD

7P

46/A

D6

P45

/AD

5P

44/A

D4

P43

/AD

3P

42/A

D2

P41

/AD

1P

40/A

D0

P67

/AS

TB

P66

/WA

ITP

65/W

RP

64/R

DP

75/B

UZ

P74

/PC

LP

73/T

I51/

TO51

P72

/TI5

0/T

O50

SDIO


(4/5)

ADI5ADI4ADI3ADI2ADI1ADI0

ADI11ADCLK

ADI10ADI9ADI8ADI7ADI6

ADI11ADCLK



C29

VCC

VCC

R25

R26R27

SDCLK SDCLK

ADCENSDIO

SDIOADCEN

131415161718192021222324

VD6VD7VD8VD9

VD10VD11

ADCLKBD0BD1BD2BD3BD4

SBSWBRESETBTESTAVSS2AVDD1VWHT+VWHT-VREF2VREF1CN0AVSS1

121110987654321

484746454443424140393837

252627282930313233343536

DV

DD

DV

SS

BD

5B

D6

BD

7B

D8

CK

SH

CK

SL

AV

SS

0C

N2

AV

DD

0C

N1

PV

SS

PV

DD

VD

5V

D4

VD

3V

D2

VD

1V

D0

WR

BR

DB

CS

BO

EB

RESETN RESETN

C42C43

C45

C51

C41

C44C46

U6

VCC

C33

C39

+5R

+

SHCLK

OCPCKORSCKBITOTRCK

FD3

R22 R21

R19

C53 C32

C52

VCC

J4

+5R

BNBPANAP

BNBPANAP

CIS OUT

C

E R14

B

C

E

B

C

E

B

C

E

B

C

E

B

C

E

B

Q10

Q4

Q9

Q3

Q5

R8

R11

Q6

GLEDONGLEDON

RLEDONRLEDON

BLEDONBLEDON

R18

U3A

R17

U3B

R15

U3C

VCC

VCC

VCC

VCC

VEE

VCC

VEE

VCC

VEE

3

2

411

411

411

5

6

10

9

C19

1214

13

1

7

8

R6

R7

VCC

VEE

VCC

VCC

U3D

+

-

+

-

+

-

+

-

11

4

2019181716151413121110987654321


(5/5)

1234

8765

RA5

1 2 3 4

8 7 6 5

RA7

VCC

C17

C16

C11

C9

HINITHSELIN

HSTBHATFD

R9HFALT

1 2 3 4

8 7 6 5

RA4

VCC

1 2 3 4

8 7 6 5

RA2

1 2 3 4

8 7 6 5

RA1R2

1234

8765

RA10

IFD0IFD1IFD2IFD3

1234

8765

RA9

IFD4IFD5IFD6IFD7

1234

8765

RA11

HXPERRHXSEL

HBSYIN

HACKHXBSY

UPACK

E

CBE

Q8

1234

8765

RA13

1 2 3 4

8 7 6 5

RA12

R24

VCC

C31

PINITPSELIN

PSTBPATFD

R23PFALT

VCC

1 2 3 4

8 7 6 5

RA15

1234

8765

RA14

PXPERRPXSEL

PACKPXBSY

Q7

CB

VCC

C40

C35

C36

C37

14

15

16

17

18

19

20

21

22

23

24

25

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

1

2

3

4

5

6

7

8

9

10

11

12

13

J5

J3

UPBSY


IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630P)(1/5)

(+Volt)J2

132

1

2

3

4

L1

C7

C6

C14

C15

C5

Q2

C10 C8 C49

-+5R

+5M

VCC

1 3

2G

I OFBI

2

S1

G

I O

+

26

139

3

1

714

8

411

51210

PHAPPHANPHBPPHBN

APANBPBN

U1

IN1IN2IN3IN4

VS1VS2

GNDGND

VCONT VCC

OUT1OUT2OUT3OUT4

1 3Q1

++


(2/5)

BUFA0BUFA1BUFA2BUFA3BUFA4BUFA5BUFA6BUFA7BUFA8BUFA9BUFA10BUFA11BUFA12BUFA13BUFA14BUFA15BUFA16

A0 VO0VO1VO2VO3VO4VO5VO6VO7

VCC

E2

WEG

E1

A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16

GN

D16

U7

121110

98765

27262325

428

331

2

1314151718192021

32

30

292422

VOC

BFWENBFOEN

BFCEN




BUFA12BUFA13BUFA14BUFA15BUFA16BFWENBFOEN

C38

C48

123456789

10111213141516171819202122232425262728293031323334353637383940

C47

VDDBFD7BFD6BFD5BFD4BFD3BFD2BFD1BFD0BUFA0BUFA1BUFA2BUFA3AVDDAGNDBUFA4BUFA5BUFA6BUFA7VDDVSSBUFA8BUFA9BUFA10BUFA11AVDDAVSSBUFA12BUFA13BUFA14BUFA15BUFA16BFWENBFOENTSTFLGTESTMDTESTCSNXIFDIRXIFENVDD

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

VS

SV

SS

PA

CK

PX

BS

YP

XP

ER

RP

XS

EL

PFA

LTA

VD

DA

VS

SP

ST

BP

AT

FD

PIN

ITP

SE

LIN

AV

DD

AV

SS

HA

CK

HX

BS

YH

XP

ER

RH

XS

EL

HFA

LTH

ST

BH

AT

FD

HIN

ITH

SE

LIN

AV

DD

AV

SS

IFD

0IF

D1

IFD

2A

VD

DA

VS

SIF

D3

IFD

4IF

D5

AV

DD

AV

SS

IFD

6IF

D7

VS

SV

SS

PACKPXBSYPXPERRPXSELPFALT

HACKHXBSYHXPERRHXSELHFALT

PSTB

IFD0IFD1IFD2IFD3IFD4IFD5IFD6IFD7

HATFDHSTB

HINITHSELIN

PATFDPINIT

PSELIN

C34

I16MRESETN

LSYNGPMFCK

XINTRDNWRNASTB

BAD0BAD1BAD2BAD3BAD4

BAD5BAD6BAD7HA8HA9HA10HA11HA12HA13HA14HA15ACCL


OHSYNC

C24

AD10AD11AD12AD13AD14AD15AD16AD17AD18AD19AD110AD111

TP8

R31

R32

SHCLK

ADCLK

BLEDONGLEDONRLEDONORSCKOTRCKOCPCK

PHBNPHBPPHANPHAP

CP3Check Pad

R16B4T

C27

BITBIT Y1

VCC

C20

R4

FB21 2 3 4

U4A U4B

I16M

C21

VCC

12011911811711611511411311211111010910810710610510410310210110099989796959493929190898887868584838281

VDDAVSSI16M

IRESETIHSYNC

OHSYNCLSYNCPMFCK

XINTRDNWRNASTBAVSSAVDDBAD0BAD1BAD2BAD3BAD4

VSSVDD

BAD5BAD6BAD7

HA8HA9

HA10HA11HA12HA13HA14HA15ACCL


VDD

C28

C50

160

159

158

157

156

155

154

153

152

151

150

149

148

147

146

145

144

143

142

141

140

139

138

137

136

135

134

133

132

131

120

129

128

127

126

125

124

123

122

121

VS

SV

SS

AR

CP

SH

CLK

AD

CLK

AD

I11

AD

I10

AD

19A

D18

AD

17A

D16

AD

15A

D14

AD

13A

D12

AD

11A

D10

AV

SS

AV

DD

BLE

DG

LED

ON

RLE

DO

NO

RS

CK

OT

RC

KO

CP

CK

CS

CLK

AV

SS

AV

DD

PH

BN

PH

BP

PH

AN

PH

AP

AV

SS

AV

DD

B8T

B4T

B2T

B1T

VS

SV

SS

C30

U5

C25


(3/5)

1234

8765

RA3

1234

8765

RA6


ACCLADCEN

DMAWRBUFSEL

PMENB


123456789

10111213141516

48474645444342414039383736353433


R35

VCC

C26

SDCLKBFCEN

SDIOSDCLK

BFCEN

ASTBASTBWRNRDN

WRNRDN

VCC

R33

R34

VCC

C18

VCC

R3

TP7TP6

TP5TP3

TP4TP2

TP1

+5M

R5

U4FU4F

D1

C22

101312 11

RESETN

C12

C13

For Function Checker

R36

VCC

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

XINTPMFCKLSYNC

OHSYNC

XINTPMFCKLSYNC

OHSYNC

CP1Check Pad

U2 R13

R12C23

U4D U4CB4T

8 9 6 5


P50/A8P51/A9P52/A10P53/A11P54/A12P55/A13P56/A14P57/A15VSS0VDD0P30P31P32P33P34/S131P35/SO32

P71/TI01P70/TI00/TO0

P03/INTP3/ADTRGP02/INTP2P01/INTP1P00/INTP0

VSS1X1X2IC

XT1XT2

RESETAVDD

AVREFP10/AN10

P36

/SC

K31

P20

/SI3

0P

21/S

O30

P22

/SC

K30

P23

/RxD

0P

24/T

xD0

P25

/AS

CK

0V

DD

IA

VS

SP

17/A

N17

P16

/AN

16P

15/A

N15

P14

/AN

14P

13/A

N13

P12

/AN

12P

11/A

N11

P47

/AD

7P

46/A

D6

P45

/AD

5P

44/A

D4

P43

/AD

3P

42/A

D2

P41

/AD

1P

40/A

D0

P67

/AS

TB

P66

/WA

ITP

65/W

RP

64/R

DP

75/B

UZ

P74

/PC

LP

73/T

I51/

TO51

P72

/TI5

0/T

O50

SDIO


(4/5)


ADI11ADCLK


ADI11ADCLK



C29

VCC

VCC

R25

R26R27

SDCLK SDCLK

ADCENSDIO

SDIOADCEN

131415161718192021222324

VD6VD7VD8VD9

VD10VD11

ADCLKBD0BD1BD2BD3BD4

SBSWBRESETBTESTAVSS2AVDD1VWHT+VWHT-VREF2VREF1CN0AVSS1

121110987654321

484746454443424140393837

252627282930313233343536

DV

DD

DV

SS

BD

5B

D6

BD

7B

D8

CK

SH

CK

SL

AV

SS

0C

N2

AV

DD

0C

N1

PV

SS

PV

DD

VD

5V

D4

VD

3V

D2

VD

1V

D0

WR

BR

DB

CS

BO

EB

RESETN RESETN

C42C43

C45

C51

C41

C44C46

U6

VCC

C33

C39

+5R

+

SHCLK

OCPCKORSCKBITOTRCK

FD3

R22 R21

R19

C53 C32

C52

VCC

J4

+5R

BNBPANAP

BNBPANAP

CIS OUT

C

E R14

B

C

E

B

C

E

B

C

E

B

C

E

B

C

E

B

Q10

Q4

Q9

Q3

Q5

R8

R11

Q6

GLEDONGLEDON

RLEDONRLEDON

BLEDONBLEDON

R18

U3A

R17

U3B

R15

U3C

VCC

VCC

VCC

VCC

VEE

VCC

VEE

VCC

VEE

3

2

411

411

411

5

6

10

9

C19

1214

13

1

7

8

R6

R7

VCC

VEE

VCC

VCC

U3D

+

-

+

-

+

-

+

-

11

4

2019181716151413121110987654321


(5/5)

1234

8765

RA5

1 2 3 4

8 7 6 5

RA7

VCC

C17

C16

C11

C9

HINITHSELIN

HSTBHATFD

R9HFALT

1 2 3 4

8 7 6 5

RA4

VCC

1 2 3 4

8 7 6 5

RA2

1 2 3 4

8 7 6 5

RA1R2

1234

8765

RA10

IFD0IFD1IFD2IFD3

1234

8765

RA9

IFD4IFD5IFD6IFD7

1234

8765

RA11

HXPERRHXSEL

HBSYIN

HACKHXBSY

UPACK

E

CBE

Q8

1234

8765

RA13

1 2 3 4

8 7 6 5

RA12

R24

VCC

C31

PINITPSELIN

PSTBPATFD

R23PFALT

VCC

1 2 3 4

8 7 6 5

RA15

1234

8765

RA14

PXPERRPXSEL

PACKPXBSY

Q7

CB

VCC

C40

C35

C36

C37

14

15

16

17

18

19

20

21

22

23

24

25

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

1

2

3

4

5

6

7

8

9

10

11

12

13

J5

J3

UPBSY


V. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630U/FB636U)

OS

RO

SG

OS

B

VB

AN

DG

AP

VR

EF

LOF

OR

CE

VR

EF

LOS

EN

SE

VR

EF

MID

FO

RC

EV

RE

FM

IDS

EN

SE

VR

EF

HIF

OR

CE

VR

EF

HIS

EN

SE

LAM

PR

LAM

PG

LAM

PB

A0A1A2A3A4

A5A6A7A8A9

A10A11A12A13A14A15

A16

A0A1A2A3A4

A5A6A7A8A9

A10A11A12A13A14

A15A16

A0A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16

A0A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16A17

1234589

1011121314151617182122

I/O0I/O1I/O2I/O3I/O4I/O5I/O6I/O7

4321

5678

4321

5678

4321

4321

5678

5678

121110

9

8765

27

262325

428

331

2

RA4

RA5

RA3

RA7 U8

R63

VCC

GN

D16

E2

R31

WEG

E1

1314151718192021

32

30

2324252627282930

DB0DB1DB2DB3DB4DB5DB6DB7

292422

[A0..A16]

VCC

C65

3334

RDWR

VCC

C31

C55 C50 C44 C51C54

R65

C43 C48 C63 C60C74

VCIS

VCC

C78

C80

C86

C71

6 19 44 69

VD

I/OV

DI/O

VD

I/OV

DI/O

VD

DG

ND

VD

INT

SR

AM

DG

ND

INT

SR

AM

VA

AG

ND

VA

AG

ND

SU

BS

TR

AT

E

BIA

S

TE

ST

DG

ND

I/OD

GN

DI/O

DG

ND

I/OD

GN

DI/O

7 20 45 70 80 81 92 93 71 55 7631 32 59 60

72737475777879

1234

8765

C64 C66 C72 C79

RA6

SENASENB

MA+MA-MB+MB-

HMSEN

C53

R48

R56

R52

VCC

(MOTOR GND)

CKO

R51R50R49

R47

C45

61626364

5758

5352515049484746434241403938373635

PD7PD6PD5PD4

PD3

PD2

PD1

PD0

BUSY

-SLIN

-INIT

-AUFD-STB

PD7PD6PD5PD4PD3

PD2

PD1

PD0

5456

68

AABB

SENSE ASENSE B

SENSE GND

PSENSE#1PSENSE#2MISCI/0#1MISCI/0#2

CLOCK INCLOCK OUT

SELECTPE

BUSYACT

D7D6D5D4D3

SELECT IND2

INITD1

ERRORDO

AUTOFEEDSTROBE

TRISTATELATCH

CMODE

VOB

TR

PH1

VOS TP3VIS TP1

TP4

TP2TP

TRR61

C77

C56

C59

R60

C76

C75

C70 C62 C69 C61 C68 C58 C67 C57

RENGENBEN

100

99 98 97 96 95 94 85 88 91 82 83 84 86 87 89 90 65 66 67

CP

2C

P1

RS iÍ2 iÍ1

TR

2T

R1

U10

VCC

VCIS

(1/3)


RA2

RA1

+5VD

BUSY

R32

+5VD

+5VD

+5VD

U4C

C21

U4D

14

U4A

14

U4B

14

VC

C

VC

C

14

5 6

VC

C

VC

CR28 R27

C29C15

+5VD

9 8

C35 C36 C37 C38 C39 C40 C41 C42

PD0PD1PD2PD3PD4PD5PD6PD7

87658765

12341234

1 2 3 4

R23

L3

C14 C23 C26

-CKONG

DQ9

G

D Q8

SS

CK48

12

11

GP107

13

14 10 U7B

+5VD

9

8

VC

C

CK0

GD0GD1GD2GD3GD4GD5GD6GD7

GX1

GD+GD-

5678

11121314

2423

1617

91831

+5VD

CK48

R21R15

R30

C16C17 C20

C34

R25

V33R9 GD+

R5

R4

C13 C12

+

VBUS L1

C5C4 R3

J1

1234

R13

R20

WR#WAIT#

34

252627

U5

IOR#/WR#IOW#/WAIT#

OSCSELRSTYPEMODE

D0D1D2D3D4D5D6D7

X1X2

D+D-

VCCVCCVCC

CLKOUTURST

DSTRB#ASTRB#

INT#

CS#/GP101EOP#/GP102

DACK#/GP103DRQ/GP104

AO/GP105A1/GP106A2/GP107

A3/INIT#

VCP

NCNCNC

GNDGNDGND

12

3940

28

2930333435363738

15

212220

101932

V33

C19

V33

URST

DSTRB#ASTRB#

-WAKEUP

GP101GP102GP103

GP105GP106GP107

(BUTTON)

(SUSPEND)(UNCONFIG)

GP103

GP105

GP103

-WAKEUP

R35

R34

R14

R38

R37

-STB

-AUFD

-SLIN

C18 C47 C46

+5VDR40

-INIT

C33

R39

R45

R43

R44

GP107

+5VD

10

14V

CC

11

12

14V

CC

13

R11

GD+

+5VDR16

Q7

D G

S

D Q6

S

G

-WAKEUP

41

2

+5VD

2

3

+5VD

14 4

VC

C

DP

RE

CLR

Q

Q

U7A

5

6

1

5D Q5

U3

S

G

GP103 (BUTTON)

R8+5VD

C25

+5VD

R42

1

2

5

+5VDC27

+5VD

4 -CKON

C32

GP107

+5VD

R6B

C

R22

+5VD

Q1

E

1234

U1

S1G1S2G2

D1D1D2D2

8765

VP1

E C

B

Q4

R24E

Q2

CB

R7

R19

R33

GP105 (SUSPEND)

U4F

U4E

R29

Y1

D

CLK

Q

Q

PR

EC

LR

C28

R36

(2/3)


VCCR83

C89

CQ12

+

-

TR

PH1

VPI

C3C6

8765

1234

R10

R17

+

1.2

U2

C11D1

R1

C10

2 3

1

Q3

VIN VOUT

VS

SC2R2

C1+ +C24 C22

R71

R66C81

VCIS

+

C7 C8 C9+

D/CIPK/2VINC/1

S/COUTT/C

GND

R26

R18

VPI VCCR12

VCIS

C84 R90

C85

VEEU12D

R88

R67

C83

VCIS

VOB

C87 C90

R72

R82

J3

+

R64

VCC

VCIS

14

C73

411

12

13R74

1234567891011121314151617

PA+PA-PB+PB-

VCISR73

2

31 R85

B

E

B

E

411 VEE

U12A

VCC

VCIS

CQ13

R79

VCISR76

R70 6

57 R86

B

E

B

E

411 VEE

U12B

VCC

VCIS

CQ14

CQ10

GEN

VCISR77

R75 9

108 R87

B

E

B

E

411 VEE

U12C

VCC

VCIS

CQ15

CQ11

BEN

R81

R80

REN

R69

VPIR46

C30 +

U9

12345

VCCIN4IN3IN1IN2

OUT4OUT3OUT1OUT2GND

109876

MA+MA-

MA+MA-

MB-MB+

MB-MB+

(A+)(A-)

R59R55

PA+PA-

U11

12345

VCCIN4IN3IN1IN2

OUT4OUT3OUT1OUT2GND

109876

(B-)(B+)

R58R62

PB-PB+

R41

C49

SENAR54

R53

C52

SENBR57

C88

HMSENHMSEN

VCC

R78

R84VCC

J2

1234

R89

+5VD

R68 D2

C82 (BUTTON)

GP103

+

-

+

-

+

-

(3/3)

COPYRIGHT 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

REVISION 0 (OCT. 1999)

Prepared by

NEW BUSINESS TECHNICAL SUPPORT DEPT.

NEW BUSINESS QUALITY ASSURANCE DIV.

QUALITY ENGINEERING CENTER

CANON INC.

30-2, Shimomaruko 3-Chome, Ohta-ku, Tokyo 146-8501, Japan

COPYRIGHT 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)PRINTED IN JAPAN (IMPRIME AU JAPON) 1099MI0.3 CANON INC.

The printing paper contains

70% waste paper

Canon FB330 FM630 Service Manual

Documents

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consumable parts durability

general circuit diagram

contact image sensor