SERIES

Transcription

SERIES

SERIES
SERVICE
MANUAL
REVISION 0
OCT. 1999
JY8-1315-000
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
COPYRIGHT © 1999 CANON INC.
Printed in Japan
Imprimè au Japon
Use of this manual should be strictly supervised
to avoid disclosure of confidential information.
LIST OF SERIAL NUMBER
CanoScan FB330P
CanoScan FB630P
CanoScan FB630U
CanoScan FB636U
F91-3511-200
F91-3521-200
F91-3541-200
F91-3551-200
F91-3561-200
F91-3571-200
F91-3581-200
F91-3589-200
F91-3591-200
F91-3611-100
F91-3631-100
F91-3641-100
F91-3651-100
F91-3661-100
F91-3671-100
F91-3611-200
F91-3621-200
F91-3631-200
F91-3641-200
F91-3651-200
F91-3661-200
F91-3671-200
F91-3681-200
F91-3689-200
F91-3691-200
F91-3831-100
F91-3841-100
F91-3861-100
F91-3871-100
F91-3812-100
F91-3842-100
F91-3872-100
F91-3882-100
F91-3892-100
AZA000000MZA000000DZA000000EZA000000FZA000000LZA000000JZA000000RZA000000KZA000000AZB000000CZB000000DZB000000EZB000000FZB000000LZB000000AZC000000MZC000000CZC000000DZC000000EZC000000FZC000000LZC000000JZC000000RZC000000KZC000000CZD000000DZD000000FZD000000LZD000000AZE000000DZE000000LZE000000JZE000000KZE000000-
CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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 Descriptions
Features, specifications, exterior features, installation, customer’s daily
maintenance
Chapter 2: Operation and Timing
Basic operation, optical system, image processing system, control system,
power supply
Chapter 3: Mechanical System
Externals, drive system, optical system, PCB
Chapter 4: Maintenance and Servicing
Periodical replacement parts, consumable parts durability, periodical
servicing, special tools, solvents and lubricants
Chapter 5: Troubleshooting
Introduction, 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 service
manual and service information bulletins, is vital to the serviceman in maintaining the product
quality and performance, and in locating and repairing the cause of malfunctions.
CONTENTS
CHAPTER 1 : GENERAL DESCRIPTIONS
I.
FEATURES ..................................... 1-1
B. Installation .............................. 1-8
II.
SPECIFICATIONS ........................... 1-2
C. Connecting to the Host
III. EXTERIOR FEATURES .................. 1-5
Computer ................................ 1-9
A. Front View ............................... 1-5
D. Scanning a Document ........... 1-12
B. Rear View ................................. 1-5
V.
IV. INSTALLATION .............................. 1-7
CUSTOMER’S DAILY MAINTENANCE.
............................................... 1-13
A. Preface ..................................... 1-7
CHAPTER 2 : OPERATION AND TIMING
I.
BASIC OPERATION ........................ 2-1
E. Scanning Unit Drive Motor
Control Circuit ...................... 2-32
A. Functions ................................ 2-1
B. Outline of Electrical
III. IMAGE PROCESSING SYSTEM .... 2-33
System ..................................... 2-2
A. Outline .................................. 2-33
C. Main PCB Input and Output ... 2-4
B. Image Processing
Functions .............................. 2-34
D. Basic Sequences of CanoScan
FB330P/FB63OP ...................... 2-6
IV. CONTROL SYSTEM ..................... 2-38
E. Basic Sequences of CanoScan
A. CanoScan
FB330P/FB630P ..................... 2-38
FB630U/FB636U ................... 2-19
II.
OPTICAL SYSTEM ....................... 2-26
B. CanoScan
A. Outline .................................. 2-26
B. CanoScan FB330P/FB630P
Document Scanning Sequence
............................................... 2-27
C. CanoScan FB630U/FB636U
Document Scanning Sequence
FB630U/FB636U .................... 2-40
V.
POWER SUPPLY ........................... 2-42
A. CanoScan
FB330P/FB630P ..................... 2-42
B. CanoScan
FB630U/FB636U .................... 2-43
............................................... 2-28
D. Contact Image Sensor ........... 2-29
CHAPTER 3 : MECHANICAL SYSTEM
I.
II.
EXTERNALS .................................. 3-1
A. Contact Image Sensor ........... 3-11
A. Covers ...................................... 3-1
IV. PCB .............................................. 3-15
DRIVE SYSTEM .............................. 3-7
A. Main PCB ............................... 3-15
A. Scanning Unit Drive Part ........ 3-7
B. Button PCB ........................... 3-17
III. OPTICAL SYSTEM ....................... 3-11
CHAPTER 4 : MAINTENANCE AND SERVICING
I.
II.
PERIODICAL REPLACEMENT
III. PERIODICAL SERVICING .............. 4-1
PARTS ............................................ 4-1
IV. SPECIAL TOOLS ............................ 4-1
CONSUMABLE PARTS
V.
SOLVENTS AND LUBRICANTS ...... 4-1
DURABILITY .................................. 4-1
CHAPTER 5 : TROUBLESHOOTING
I.
INTRODUCTION ............................. 5-1
IV. CANON SCANNER TEST ................ 5-6
A. Initial Check ............................ 5-1
A. Outline .................................... 5-6
B. Others ...................................... 5-1
B. Canon Scanner Test for
II.
TROUBLESHOOTING ..................... 5-2
CanoScan FB330P/FB630P ..... 5-6
A. Troubleshooting Image
C. Canon Scanner Test USB for
Defects .................................... 5-2
CanoScan FB630U/FB636U
B. Troubleshooting
............................................... 5-12
Malfunctions ........................... 5-3
III. LOCATION OF ELECTRICAL
PARTS ............................................ 5-4
CHAPTER 6 : PARTS CATALOG
CanoScan FB330P/CanoScanFB630P
................................................. 6-1
CanoScan FB630U/CanoScan FB636U
................................................. 6-7
APPENDIX
I.
GENERAL CIRCUIT DIAGRAM
IV. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB330P/FB630P) ......... A-1
II.
(CanoScan FB630U/FB636U) ........ A-2
(CanoScan FB630P) ...................... A-8
V.
MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB630U/FB636U) ...... A-13
III. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB330P) ...................... A-3
CHAPTER 1
GENERAL DESCRIPTIONS
I.
FEATURES ....................................... 1-1
IV.
INSTALLATION ......................... 1-7
II.
SPECIFICATIONS ............................ 1-2
V.
CUSTOMER’S DAILY
III.
EXTERIOR FEATURES .................... 1-5
MAINTENANCE ....................... 1-13
CANON CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 1
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 x
1200 dpi resolution are flatbed image scanners incorporating the following features.
1. High gradation and high image quality are achieved by employing a highly sensitive contact
image sensor with LIDE (LED Indirect Exposure) technology for the reading unit, and by
reading 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 1.5
kg 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 requiring
no AC adapter.
1-1
CHAPTER 1
II. SPECIFICATIONS
CanoScan FB330P
MAIN UNIT
· Type
: Flat bed image scanner
READING UNIT
· Image sensor
· Light source
· Max. document size
· Image output
· Resolution
· Scan time
:
:
:
:
:
:
· Resolution conversion
· Cropping area
INTERFACE
· Interface
: Parallel interface (IEEE-1284/ECP)/1 male and 1
female
Power terminal for AC adapter
OTHERS
· Operating environment
· Power consumption
· Dimensions
· Weight
1-2
2552 pixels contact image sensor
LED indirect exposure (RGB each)
A4 or Letter (216 x 297 mm)
RGB 8 bits per channel (input 12 bits)
300 x 600 dpi
60 sec. (color, A4, 300 dpi)
20 sec. (grayscale, A4, 300 dpi)
: 75/150/300 dpi (Horizontal)
75/150/300/600 dpi (Vertical)
: A rectangular frame can be specified.
: Temperature range, 5 to 35ºC
Humidity range, 10 to 90%
Air pressure range, 613 to 1013 hPa
: 5.0 W (during operation), 2.5 W (during standby)
: 256.0(W) x 372.5(D) x 39.0(H) mm
: 1.5 kg
CHAPTER 1
CanoScan FB630P
MAIN UNIT
· Type
READING UNIT
· Image sensor
· Light source
· Image output
· Resolution
· Scan time
:
:
:
:
:
:
· Cropping area
INTERFACE
· Interface
OTHERS
· Dimensions
· Weight
600 x 1200 dpi
: 75/150/300/600 dpi (Horizontal)
75/150/300/600/1200 dpi (Vertical)
: Parallel interface (IEEE-1284/ECP)/1 male and 1
female
Power terminal for AC adapter
: 256.0(W) x 372.5(D) x 39.0(H) mm
: 1.5 kg
1-3
CHAPTER 1
MAIN UNIT
· Type
READING UNIT
· Image sensor
· Light source
· Image output
· Resolution
· Scan time
:
:
:
:
:
:
· Cropping area
600 x 1200 dpi
: 75/150/300/600 dpi (Horizontal)
75/150/300/600/1200 dpi (Vertical)
INTERFACE
· Interface
: USB interface (B plug) x 1
OTHERS
· Dimensions
· Weight
: 256.0(W) x 372.5(D) x 39.0(H) mm
: 1.5 kg
Specifications are subject to change with product improvement.
1-4
CHAPTER 1
III. EXTERIOR FEATURES
CanoScan FB330P/FB630P
A. Front View
1
A4
LTR
B5
2
q
w
e
r
3
Document Cover
Document Glass
Alignment Mark
Lock Switch
B5
A4
4
LTR
Figure 1-1
B. Rear View
1
2
q Power Terminal
w PC Port
e Printer Port
3
Figure 1-2
III. EXTERIOR FEATURES
1-5
CHAPTER 1
A. Front View
1
A4
LTR
B5
2
q
w
e
r
t
3
4
Document Cover
Document Glass
Alignment Mark
Start Button
Lock Switch
B5
5
A4
LTR
Figure 1-3
B. Rear View
q USB Port
1
Figure 1-4
1-6
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 a
window, 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 metal
parts, resulting in a faulty operation. Give the scanner at least one hour to adjust to the
room temperature before unpacking.
1-7
CHAPTER 1
B. Installation
1. Unlocking the lock
The 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.
q Lock Switch
1
Figure 1-6
3) Return the scanner to its standard position.
Note: Always lock the scanning unit during transport.
1-8
CHAPTER 1
C. Connecting to the Host Computer
FB330P/FB630P is connected to the parallel port, FB630U/FB636U is connected to the
USB port on the host computer. This section explains how to connect the scanner to the host
computer using a parallel cable or a USB cable supplied with the scanner. Refer to "Getting
Started" for details. For connecting/disconnecting the host computer's cables, refer to the
manual 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.
q PC Port
w Parallel Cable
1
2
Figure 1-7
1-9
CHAPTER 1
4) Connect the printer cable if it is disconnected in 1) to the printer port on the scanner.
q Printer Port
w Printer Cable
1
2
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.
1 - 10
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.
q USB Port
w USB Cable
1
2
Figure 1-9
1 - 11
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.
q Alignment Mark
3
12
A4
LTR
B5
1
B5
A4
LTR
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.
1 - 12
CHAPTER 1
V. CUSTOMER'S DAILY MAINTENANCE
Dirt on a document glass or a document cover may cause an unclear image or lines on an
image. 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.
1 - 13
CHAPTER 2
OPERATION AND TIMING
I.
BASIC OPERATION ..................... 2-1
IV.
CONTROL SYSTEM .................... 2-38
II.
OPTICAL SYSTEM ..................... 2-26
V.
POWER SUPPLY ......................... 2-42
III.
IMAGE PROCESSING
SYSTEM ..................................... 2-33
CHAPTER 2
I. BASIC OPERATION
A. Functions
The scanner functions are divided into the three main blocks of optical system, image
processing system, and control system.
Contact image
sensor
Host computer
Scanning unit
drive motor
Optical system
Control system
Image processing system
Figure 2-1
2-1
CHAPTER 2
B. Outline of Electrical System
1. CanoScan FB330P/FB630P
Figure 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 host
computer via PC port.
Main PCB
DCS1
J2
AC adapter
CPU
Scanning unit
drive motor
M1
Buffer
RAM
To PC port
J3
Gate array
Contact
image
sensor
CS1
To printer port
Analog
IC
J5
J4
Figure 2-2
2-2
CHAPTER 2
2. CanoScan FB630U/FB636U
Figure 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 control
program, which functions as CPU.
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, then converted into USB
data by USB to EPP bridge IC and output to the host computer via USB port.
Host computer
Main PCB
USB
port
Control
USB to EPP
Bridge IC
Scanning unit
drive motor
program
J1
M1
Buffer RAM
Button PCB
Start button
Gate array
Contact
image
sensor
CS1
Analog
IC
BT1
J2
J3
Home position
sensor
HP1
Figure 2-3
2-3
CHAPTER 2
C. Main PCB Input and Output
1. CanoScan FB330P/FB630P
Main PCB
J2-1
DCS1
-2
+10.5V
GND
AC adapter
CS1
M1
J4-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
OUT
NC
AGND
VCC
VREF
SP
CLK
LED COMMON
BLED
GLED
RLED
FGND
NC
NC
NC
NC
AP
AN
Scanning unit drive motor
BP
drive signal
BN
Contact image sensor
HSTB
IF0
IF1
IF2
IF3
IF4
IF5
IF6
IF7
HACK
HXBSY
HXPERR
HXSEL
HATFD
HFALT
HINIT
HSELIN
GND
J3-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18 -25
PSTB
IF0
IF1
IF2
IF3
IF4
IF5
IF6
IF7
PACK
PXBSY
PXPERR
PXSEL
PATFD
PFALT
PINIT
PSELIN
GND
J5-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18 -25
To host
computer
To printer
Figure 2-4
2-4
CHAPTER 2
2. CanoScan FB630U/FB636U
Main PCB
Button PCB
J2-1
-2
-3
-4
HP1
Home
position
sensor
HMSEN "H" when scanning unit is in home position.
GND
VCC
BTON "L" when start button is pressed.
BT1
Start
button
CS1
M1
J3-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
LEDG
LEDR
LEDB
LED COMMON
CP
RS
+5V
CLK
DSP
D+
GND
GND
VAD
VDD
OS
GND
GND
GND
GND
AP
AN
Scanning unit drive motor drive signal
BP
BN
J1-1
-2
-3
-4
To host
computer
Figure 2-5
2-5
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
<Hardware setting>
Time required
about 0.7 seconds
Power ON
Sets CPU
Checks CPU internal
CPU internal was
checked normally?
NO
Sets CPU error flag
YES
Sets gate array
Sets analog IC
Checks buffer RAM
Buffer RAM was
checked normally?
NO
Sets CPU error flag
YES
1
Figure 2-6-1
2-6
CHAPTER 2
1
Sets CPU timer
Sets communication
gate array
Starts overvoltage detection
Starts interrupt process
Sets parameter
Checks gate array
Gate array was
checked normally?
NO
Sets CPU error flag
YES
Detects black area
Figure 2-6-2
2-7
CHAPTER 2
<Home position detection>
Time required
about 5 to 6 seconds
(Max. 15 sec. returning time
is added depending on the
position of scanning unit)
Detects black area
Overvoltage was detected?
YES
Sets error flag
NO
Sets detection mode for border
between black and white
Standby
Sets border detection value
G LED ON
NOTE: If the peak light intensity
does not reach the black
level even after checking
several lines more, the
home position detection is
in error.
Peak light intensity to CIS
reached black level?
YES
3
NO
Sets scanning unit return
Returns scanning unit
2
Figure 2-6-3
2-8
CHAPTER 2
2
NO
NO
Fixed feeding
limit was exceeded?
YES
YES
Stops scanning unit
NOTE: If the peak light intensity
does not reach the black
level even after checking
several lines more, the
home position detection is
in error.
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
YES
3
Detects border between
black and white
Sets HP return
distance (2 mm)
Scanning unit
returned 2 mm?
NO
YES
Stops scanning unit
Initializes buffer RAM control
Standby
Figure 2-6-4
2-9
CHAPTER 2
black and white
Sets detection mode for border
between black and white
G LED ON
Sets document feed distance
(max. 15 mm)
Moves scanning unit forward
reached white level?
NO
NO
Fixed feeding
limit (max. 15 mm) was
exceeded?
YES
Stops scanning unit
YES
Obtains
of data
**** 1 line
RAM*
to buffer RAM
1********
4
White level in
both ends of the obtained
data is normal?
Sets error flag
********
NO
YES
Moves
1***** 1 line
LED
G
LED**OFF
NO
Scanning unit
moved forward more
than 2 mm?
Standby
YES
4
Figure 2-6-5
2 - 10
CHAPTER 2
When CanoScan FB330P/FB630P is powered ON, the CPU in the main PCB performs
hardware setting and home position detection according to the flowchart shown in Figure 2-6.
1) Hardware setting
The 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 on
checking during standby.
When the CPU judges an overvoltage beyond preset level is input, it stops all processing except
for the communication with the host computer and sends an overvoltage detection error to the
host computer.
2) Home position detection
The 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.
Black mark area
Document glass (back side)
White mark area
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 to
detect the border between black and white. When the scanning unit reaches the white mark area
and the peak value of the light intensity to the scanning unit reaches white level, the CPU stops
the scanning unit. If not all pixels in the vertical scanning direction are white, the CPU moves
the 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 on
standby to wait for a command from the host computer.
2 - 11
CHAPTER 2
2. Calibration sequence
<Black shading data composition>
Time required
about 0.5 seconds
Standby
Black shading
data is required?
NO
YES
Returns scanning unit 1 mm
Obtains 1 line of data
to buffer RAM
NO
6 lines of data
was obtained?
YES
Moves scanning unit
forward 1 mm
Black data
was transmitted?
NO
YES
Standby
Figure 2-8-1
2 - 12
CHAPTER 2
<LED exposure control>
Standby
Time required
about 15 seconds
LED exposure
control is required?
NO
YES
black and white
Moves scanning unit
forward 2 mm
<Peak value detection>
*A
Sets exposure control mode
R LED ON
Sets LED ON period
Increases LED ON
period data
Detects peak value
to the CIS
Peak light intensity
to the CIS is higher than
the preset value?
NO
NO
LED ON
period is longer than
max. value?
YES
YES
5
Sets max. LED ON period
Figure 2-8-2
2 - 13
CHAPTER 2
5
Stores R LED ON period data
<Exposure control data fine adjustment>
Obtains 1 line of white data
Adjusts LED ON period data
Max. value in 1 line of data
is within proper range?
NO
YES
*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 unit
to the home position
Standby
Figure 2-8-3
2 - 14
CHAPTER 2
<White shading data composition>
Time required
about 3 seconds
(per command for each color)
Standby
White shading
data is required?
NO
YES
Moves scanning unit forward 4 lines
Sets specified LED
parameter to turn ON
Obtains 1 line of data to buffer RAM
Moves scanning unit
forward 6 lines
6 lines of data
was obtained?
NO
YES
LED OFF
Moves scanning unit
White data
was transmitted?
NO
YES
Standby
Figure 2-8-4
2 - 15
CHAPTER 2
Calibration is performed when CanoScan FB330P/FB630P has received calibration
command from the host computer. Calibration is to compose black shading data and white
shading data by reading and averaging the black mark and white mark on the back of the
document glass as color references for the proper color reading.
1) Black shading data composition
Black 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 control
LED 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. If
the peak value is out of the range, LED exposure time is changed. Proper LED exposure period
is set by reading 1 line of an image and checking if it is properly output comparing to the
preset value.
3) White shading data composition
White 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 12
lines of sample data is averaged to be the white shading data.
2 - 16
CHAPTER 2
3. Document scanning sequence
Standby
Document scan is
commanded?
NO
YES
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?
NO
YES
LED ON
Starts document scan
6
Figure 2-9-1
2 - 17
CHAPTER 2
6
Scan cancellation
is required?
NO
NO
Document was scanned?
YES
YES
LED OFF
Scanning unit returned
to the home position?
NO
YES
Stops scanning unit
drive motor
Image data
was transmitted?
NO
YES
Standby
Figure 2-9-2
2 - 18
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
Power ON
Tests gate array
read/write
Gate array read/write
was tested normally?
NO
Sets error flag
YES
Scanning unit is in home
position?
NO
YES
YES
NO
Returned more
than 300 mm?
NO
YES
Sets error flag
Stops scanning unit
1
Figure 2-10-1
2 - 19
CHAPTER 2
1
Tests buffer RAM
read/write
Buffer RAM read/write
was tested normally?
NO
Sets error flag
YES
LED ON
Adjusts LED ON
period for white
mark area detection
LED ON period
was adjusted normally?
NO
Sets error flag
YES
Detects white mark area
White mark area
was detected normally?
NO
Sets error flag
YES
Measures USB transmission speed
USB transmission
speed was measured
normally?
YES
NO
Sets error flag
Standby
Figure 2-10-2
2 - 20
CHAPTER 2
When CanoScan FB630U/FB636U is powered ON, it performs hardware setting, home position
detection, and USB transmission speed measurement according to the flowchart shown in Figure
2-10.
1) Hardware setting
Gate array and buffer RAM in the main PCB are checked if they function normally.
2) Home position detection
The 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 reading
image signals with the LED of the contact image sensor turned ON to detect the border between a
black 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, the
scanner stops the scanning unit to define there as the border between a black mark area and
white mark area. The number of steps of the scanning unit drive motor is calculated to define the
distance from the home position to the white mark area.
3) USB transmission speed measurement
The 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 host
computer to measure the USB transmission speed to define the operation clock for the contact
image sensor.
When the hardware setting, home position detection and USB transmission speed
measurement have completed, the scanner is on standby to wait for a command from the host
computer.
2 - 21
CHAPTER 2
2. Calibration sequence
Standby
Corrects black level
Black level was
corrected normally?
NO
Sets error flag
YES
Obtains 15 lines of data
Data was
obtained normally?
YES
NO
Sets error flag
Composes black
shading data
Sets black shading
data to gate array
Black shading data was
set to gate array normally?
YES
NO
Sets error flag
2
Figure 2-11-1
2 - 22
CHAPTER 2
2
Moves scanning unit
to white mark area
Scanning unit moved to
white mark area normally?
NO
Sets error flag
YES
Adjusts LED ON period
LED ON
period was adjusted
normally?
NO
Sets error flag
YES
LED ON
Obtains 9 lines of data
Data was
obtained normally?
YES
NO
Sets error flag
Composes white
shading data
LED OFF
Moves scanning unit
Standby
Figure 2-11-2
2 - 23
CHAPTER 2
Calibration is performed when CanoScan FB630U/FB636U has received calibration
command from the host computer. Calibration is to compose black shading data and white
shading data by reading and averaging the black mark and white mark on the back of the
document glass as color references for the proper color reading.
1) Black shading data composition
Black 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 composition
White 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.
2 - 24
CHAPTER 2
3. Document scanning sequence
Standby
LED ON
Moves scanning unit to the
vertical scan start position
Starts document scan
Scan cancellation
is required?
NO
YES
NO
Document
was scanned?
YES
LED OFF
NO
YES
Stops scanning
unit drive motor
Image data
was transmitted?
NO
YES
Standby
Figure 2-12
2 - 25
CHAPTER 2
II. OPTICAL SYSTEM
A. Outline
The optical system includes the functions of moving the scanning unit by the scanning unit
drive motor, exposing a document by the LED, and collecting the reflected light to the
phototransistor array. Contact image sensor is adopted for the scanning unit, which is a
module combined with the LED for light exposing, the rod lens array for light collecting, and
the phototransistor array for light receiving to read per line. The scanning unit drive motor
runs by the drive signal sent from the main PCB and drives the scanning unit via the drive
pulley and drive wire.
Sliding rod
Drive wire
Drive pulley
Figure 2-13
2 - 26
CHAPTER 2
B. CanoScan FB330P/FB630P Document Scanning Sequence
Sequence
STBY
HPDET
STUP
SCFW
SCAN
SCRTN
STBY
Scan command is received
5-6
Time required (s)
Scanning unit drive motor (M1)
LED ON signal
G LED only
Interface signal
(Data 1-8)
Scanning unit position
Home position
Document
scan area
Figure 2-14
Sequence
Purpose
STBY
(Standby)
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.
HPDET
(Home position
detection)
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.
STUP
(Setup)
To make a gate array setting,
After the home position is
detected until document scan buffer RAM initialization, etc. as
a preparation for scan.
starts.
SCFW
(Scanning unit
forward)
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.
SCAN
(Document scan)
scanning until all area
specified by the host
computer are scanned.
To perform various image
processing according to the
command from the host
computer and transmit the
image data during scan.
SCRTN
(Scanning unit
return)
moving backward until it
returns to the home position.
To return the scanning unit to
the home position to ready for
the next scan.
A4, 300 dpi, 100%, 24 bit color
:Reverse
Remarks
If the detection of the border
between black and white is failed,
the scanning unit stops there and
proceeds to the next step.
The distance to the home position
is calculated by the distance from
the detected home position to the
position the scan is completed.
Table 2-1
2 - 27
CHAPTER 2
C. CanoScan FB630U/FB636U Document Scanning Sequence
Sequence
STBY
STUP
SCFW
SCAN
SCRTN
STBY
Scan command is received
Scanning unit drive motor (M1)
LED ON signal
Home position sensor
detection signal
Interface signal
(Data1-8)
Scanning unit position
Home position
Document
scan area
A4, 600 dpi, 100%, 24 bit color
Reverse
Figure 2-15
Sequence
Purpose
STBY
(Standby)
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.
STUP
(Setup)
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.
SCFW
(Scanning unit
forward)
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.
SCAN
(Document scan)
scanning until all area
specified by the host
computer are scanned.
To perform various image
processing according to the
command from the host
computer and transmit the
image data during scan.
SCRTN
(Scanning unit
return)
After the scanning unit starts To return the scanning unit to
moving backward until it
the home position to ready for
returns to the home position. the next scan.
Remarks
Home position is determined by the
home position sensor.
Table 2-2
2 - 28
CHAPTER 2
D. Contact Image Sensor
1. Structure of the contact image sensor
Figure 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 the
light conductor section. When the LED is turned ON, the LED light is supplied to the light
conductor section which exposes a document. That is, the LED light indirectly exposes a
document 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 rod
lens array and is read as an image signal.
Reading position
Light conductor section
Rod lens array
LED
Phototransistor array
Figure 2-16
2 - 29
CHAPTER 2
Figure 2-17 shows a cross-sectional view of the contact image sensor for CanoScan
FB330P/FB630P, figure 2-18 shows for CanoScan FB630U/FB636U.
Scanning direction
Reading position
Illuminated light
Light conductor
section
Reflected light
B
G
Rod lens array
R
(Light receiver section)
Figure 2-17
Scanning direction
Reading position
Illuminated light
Light conductor
section
Light reflector
section
Reflected light
B
G
R
Rod lens array
(Light receiver section)
Figure 2-18
2 - 30
CHAPTER 2
The contact image sensor for CanoScan FB330P places 11 phototransistor arrays of 232
light 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 per
line in series.
Image signal
Image
signal
output
Phototransistor
array
Sensor
drive
circuit
Phototransistor
array
Phototransistor
array
Phototransistor
array
Rod lens array
R
G
B
LED
Figure 2-19
2. Image scanning operation
When 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 the
image signal corresponding to each red, green and blue lights. The reading cycle of 1 line is
17.1 msec.
When scanning a grayscale image, only green LED is ON and the image signal is processed.
4.2 ms
4.2 ms
4.2 ms
4.5 ms
R
G
B
SP
RLED
GLED
BLED
Image signal
output
R
G
B
Figure 2-20
2 - 31
CHAPTER 2
D. Scanning Unit Drive Motor Control Circuit
Figure 2-21 shows a block diagram of the scanning unit drive motor control circuit. The
CPU analyzes each command sent from the host computer via gate array and sets to generate
Pulse Motor Forward Clock (PMFCK) based on the scaling for the gate array. The gate array
converts 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 of
the PMFCK signals for the gate array, then changes the rotating speed of the scanning unit
drive motor.
Main PCB
CPU
PMENB
To host
computer
PMFCK
Gate array
Scanning unit
drive motor
PHAP
AP
J3-17
PHAN
AN
-18
BP
-19
BN
-20
PHBP
PHBN
Motor
driver
M1
Figure 2-21
2 - 32
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 digital
data, performs various image processing, and outputs the data to the host computer via PC
port/USB port. Shading correction and gamma correction are performed by the driver software
instead of the scanner function.
1. Contact
image
sensor
6. Packing
3. Shading
correction
2. A/D
conversion
4. Gamma
correction
5. Resolution
conversion
To host computer
Figure 2-22
2 - 33
CHAPTER 2
B. Image Processing Functions
1. Contact image sensor
The 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 blue
according to the clock signals, then outputs 1 line of image signal proportional to the light
intensity received by the phototransistor.
2. A/D conversion
Analog 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, green
image signal, and blue image signal.
3. Shading correction
When 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 the
standard density data for the image data correction. The shading correction converts the
image data from 12 bits to 10 bits each color.
4. Gamma correction
Shading-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 are
adjusted by the gamma correction. The CPU writes gamma curve specified by the host
computer into the buffer RAM before scanning a document. Image scan starts and the image
data input to the buffer RAM is converted by the gamma curve data and is output.
2 - 34
CHAPTER 2
5. Resolution conversion
1) 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 is
performed by thinning the image data of the basic resolution.
Example: To decrease the resolution to 1/2, image data is output every other pixel.
A
B
C
A
D
C
E
F
E
G
H
G
Figure 2-23
2) Resolution conversion in the vertical scanning direction
The 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 speed
to read more lines as shown in Figure 2-25.
Sampling point
Moving direction
Scanning unit
Figure 2-24
Sampling point
Moving direction
Scanning unit
Figure 2-25
2 - 35
CHAPTER 2
When decreasing the resolution, the scanning unit moves at a faster speed to read less
lines.
Sampling point
Moving direction
Scanning unit
Figure 2-26
6. Packing
Processed 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 the
writing block, the data is read from the reading block. When fixed volume has been written,
the writing switches to the reading.
Input
Buffer RAM I (for writing)
Buffer RAM II (for reading)
Output
Fixed volume has been written
Buffer RAM I (for reading)
Input
Output
Buffer RAM II (for writing)
Figure 2-27
The scanner can output 8 bits each and 10 bits each of red, green, and blue images, while
the 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 the
buffer RAM. This process is called a packing.
2 - 36
CHAPTER 2
Figure 2-28 shows the packing process; four 10 bits of pixels A, B, C, and D are divided into
higher 2 bits and lower 8 bits, then converted into five 8 bits of image data.
Lower 8 bits of
pixels A to D
LSB
MSB
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
C1
C2
C3
C4
C5
C6
C7
C8
D1
D2
D3
D4
D5
D6
D7
D8
Higher 2 bits of
pixels A to D
A9
A 10
B9
B 10
C9
C 10
D9
D 10
E1
E2
E3
E4
E5
E6
E7
E8
......
Figure 2-28
2 - 37
CHAPTER 2
IV. CONTROL SYSTEM
A. CanoScan FB330P/FB630P
1. Outline
CanoScan 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 mainly
for inputting a function check mode setting.
CPU
P5 A8~15
Control signal
P0, P2, P3,
P6, P7
P4 AD0~7
Gate Array
To host computer
Figure 2-29
2. Control Switching Between Printer And Scanner
CanoScan 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 sends
the signal to start the communication with the scanner, the control is switched between printer
and scanner.
Host computer
Scanner
Printer
Figure 2-30
The host computer sends the command to select the scanner or the printer to communicate
with.
2 - 38
CHAPTER 2
When the scanner is ON, parallel port signals are directly sent to the printer, meanwhile the
scanner monitors the command sent from the host computer.
Host
Scanner
computer
Printer
Monitors
the command
Figure 2-31
When the host computer sends the signal to start the communication with the scanner, the
scanner disconnects the control line from the host computer to the printer, meanwhile the
signal sent from the host computer to the printer is ignored.
Host
computer
Scanner
Printer
Disconnected
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 it
to the printer.
2 - 39
CHAPTER 2
B. CanoScan FB630U/FB636U
1. Outline
CanoScan 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 control
program, which sets a command directly to the gate array register to control the scanner.
2. Outline of USB
CanoScan 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 devices
USB 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 tree
structure 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
Node
Hub 2
Node
Hub 3
Hub 6
Node
Hub 4
Node
Node
Hub 5
Node
Node
Node
Node
Figure 2-33
2 - 40
CHAPTER 2
USB connector has A plug for connecting to upper layer and B plug for connecting to lower
layer.
A Plug
B Plug
Figure 2-34
3) USB data transfer
USB 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 data
transfer 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.
2 - 41
CHAPTER 2
V. POWER SUPPLY
A. CanoScan FB330P/FB630P
AC 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 the
main PCB. +5 VDC is used for the IC in the main PCB, the scanning unit drive motor and the
contact image sensor.
The scanner has an overvoltage detection function to check if an AC adapter for other
scanner is connected and overvoltage is input.
The CPU performs A/D conversion of an AC adapter divided voltage input to P17 port, and
starts to check when the hardware setting in the power ON sequence has completed, then
keeps on checking during standby.
When the CPU judges an overvoltage beyond preset level is input, it stops all processing
except for the communication with the host computer and sends an overvoltage detection error
to the host computer.
AC adapter
Main PCB
Contact
image sensor
AC power
AC/DC
conversion
circuit
+5 VDC
conversion
circuit
+10.5 VDC
Scanning unit
drive motor
Figure 2-35
2 - 42
CHAPTER 2
B. CanoScan FB630U/FB636U
CanoScan 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.
Host computer
Main PCB
Contact
image sensor
USB port
+5 VDC
Scanning unit
drive motor
Figure 2-36
2 - 43
CHAPTER 3
MECHANICAL SYSTEM
I.
EXTERNALS ................................ 3-1
III.
OPTICAL SYSTEM ..................... 3-11
II.
DRIVE SYSTEM ........................... 3-7
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 using
the following procedures.
A. Covers
1
A4
LTR
B5
2
3
B5
A4
LTR
q Document Cover
w Document Glass Unit
e Base Frame
Figure 3-1
3-1
CHAPTER 3
1. Removing the document cover
1) Pull the hinge unit of the document cover to the left, remove the right hinge unit, then warp
the document cover to remove.
3
1
1
A4
LTR
B5
2
2
B5
A4
LTR
q Document Cover
w Hinge Unit
Figure 3-2
3-2
CHAPTER 3
2. Removing the document glass unit
1) Remove the document cover.
2) Unhook the hook on the front of the document glass unit, then lift the hook part.
A4
LTR
B5
1
2
3
B5
A4
LTR
q Hook
w Hook Part
e 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.
3-3
CHAPTER 3
3) Unhook the hook on the rear of the document glass unit, then slide the document glass
unit forward.
A4
LTR
B5
1
2
B5
A4
LTR
q Hook
w 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.
3-4
CHAPTER 3
4) Lift the rear of the document glass unit, then pull backward to remove it.
2
A4
LTR
1
B5
B5
A4
LTR
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.
3-5
CHAPTER 3
3. Precaution when attaching the document glass unit
1) Attach the document glass unit pressing toward the front of the scanner as a standard
position.
A4
LTR
B5
B5
A4
LTR
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.
3-6
CHAPTER 3
II. DRIVE SYSTEM
A. Scanning Unit Drive Part
1.
1)
2)
3)
Removing the drive unit
Remove the document cover.
Remove the document glass unit.
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 Stopper
w Seal
Figure 3-7
Note: Take care not to damage or lose the seal to reuse it.
3-7
CHAPTER 3
4) Move the drive unit to the center.
4
1
2
2
q
w
e
r
Drive Unit
Drive Wire
Seal
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.
3-8
CHAPTER 3
2. Precautions when attaching the drive unit
1) 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.
1 1
1 3
2
3
q
w
e
r
4
Grease Applying Positions
Drive Wire
Wire Spring
Ferrite Core
Figure 3-9
3-9
CHAPTER 3
3.
1)
2)
3)
4)
Removing the drive wire
Remove the seal.
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 wire
1) When the drive wire is twisted, untwist the wire naturally but not forcefully.
2) Locate the drive wire as shown in Figure 3-9.
3 - 10
CHAPTER 3
III. OPTICAL SYSTEM
A. Contact Image Sensor
1.
1)
2)
3)
4)
Removing the contact image sensor
Move the drive unit to the center. (Refer to II. A. 1, step 3), 4))
Remove 2 spacers at both ends of the contact image sensor.
2
1
2
1
B5
A4
LTR
q Drive Unit
w Spacer (FB330P
(FB630P
(FB630U
(FB636U
Left : White, Right : Blue)
Left : Gray, Right : Black)
Left : Green, Right : Green)
Left : Green, Right : Green)
Figure 3-10
3 - 11
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 image
sensor.
3
1
2
B5
A4
LTR
4
q
w
e
r
Contact Image Sensor
Hinge
Flat Cable
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.
3 - 12
CHAPTER 3
2. Precautions when attaching the contact image sensor
1) 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).
1
2
B5
A4
LTR
q Connector
w Recess under the Connector
Figure 3-12
3 - 13
CHAPTER 3
3) Align the q part on the contact image sensor with the w part on the drive unit as shown in
Figure 3-13 when attaching the contact image sensor to the drive unit.
B5
A4
LTR
2
1
Figure 3-13
3 - 14
CHAPTER 3
IV. PCB
A. Main PCB
1.
1)
2)
3)
Removing the Main PCB (FB330P/FB630P)
Remove the flat cable, 3 screws, then remove the main PCB.
2
1
3
B5
A4
LTR
q Flat Cable
w Screw
e Main PCB
Figure 3-14
3 - 15
CHAPTER 3
2.
1)
2)
3)
Removing the Main PCB (FB630U/FB636U)
Remove 2 flat cables, 3 screws, then remove the main PCB.
1
2
3
B5
A4
LTR
q Screw
w Main PCB
e Flat Cable
Figure 3-15
3. Precautions when attaching the main PCB
1) Pull the flat cable toward the drive unit to take up the slack in the flat cable after the main
PCB is attached.
3 - 16
CHAPTER 3
B. Button PCB
1.
1)
2)
3)
4)
5)
Removing the button PCB (FB630U/FB636U)
Move the drive unit to the center. (Refer to II. A. 1, step 3), 4))
Remove 2 screws to remove the button PCB.
Remove the flat cable to remove the start button, caring not to lose the button spring.
1
2
3
q Button PCB
w Flat Cable
e Screw
Figure 3-16
1
2
3
q Start Button
w Button Spring
e Button PCB
Figure 3-17
3 - 17
CHAPTER 4
MAINTENANCE AND SERVICING
I.
II.
PERIODICAL REPLACEMENT
III.
PERIODICAL SERVICING ............ 4-1
PARTS ......................................... 4-1
IV.
SPECIAL TOOLS ......................... 4-1
CONSUMABLE PARTS
V.
SOLVENTS AND LUBRICANTS .... 4-1
DURABILITY ................................ 4-1
CHAPTER 4
I. PERIODICAL REPLACEMENT PARTS
None
II. CONSUMABLE PARTS DURABILITY
None
III.PERIODICAL SERVICING
None
IV. SPECIAL TOOLS
None
V. SOLVENTS AND LUBRICANTS
Lubricants used for disassembly and reassembly of the scanner.
No.
Name
Tool No.
1
Grease
TKC-0955
Usage / Remarks
To be applied to the sliding part between the scanning
unit and sliding rod.
MOLYKOTE EM-50L
Table 4-1
4-1
CHAPTER 5
TROUBLESHOOTING
I.
INTRODUCTION ........................... 5-1
II.
TROUBLESHOOTING .................. 5-2
III.
LOCATION OF
IV.
CANON SCANNER TEST ............. 5-6
ELECTRICAL PARTS ................... 5-4
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 to
CHAPTER 1, II. SPECIFICATIONS)
3. The scanner is not installed near a water faucet, boiler, humidifier, open flame, or in dusty
place.
4. The scanner is not exposed to direct sunlight. If it is unavoidable to install in a sunny
place, 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 metal
parts, resulting in a faulty operation.
5-1
CHAPTER 5
II. TROUBLESHOOTING
Causes and corrective actions for possible image defects and malfunctions during operation
are described below.
A. Troubleshooting Image Defects
1. Image not output
Cause 1
: Faulty connection of the parallel cable/USB cable
Corrective action : Securely connect the parallel cable/USB cable.
Cause 2
: Faulty contact image sensor
Corrective action : Replace the contact image sensor.
Cause 3
: Faulty main PCB
Corrective action : Replace the main PCB.
2. Uneven image density or lines
Cause 1
: Dirt on the document cover or document glass
Corrective action : Clean the document cover or document glass.
Cause 2
: Faulty calibration data
Corrective action : Perform the calibration.
Cause 3
: External light is entering into the scanner. External light entering into
the contact image sensor can cause uneven image density.
Corrective action : Fully close the document cover. If it is impossible, cover with a sheet
etc. to prevent external light.
Cause 4
Cause 5
: Faulty main PCB
5-2
CHAPTER 5
B. Troubleshooting Malfunctions
1. Host computer not detecting the scanner
Cause 1
: Faulty installation of the device driver
Corrective 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 cable
Corrective 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.
Cause 5
: Faulty main PCB
2. Scanner not operating
Cause 1
: Lock switch is not unlocked.
Corrective action : Unlock the lock switch.
Cause 2
: Faulty connection of the flat cable
Corrective action : Securely connect the flat cable to the contact image sensor and main
PCB.
Cause 3
Cause 4
: Faulty main PCB
3. Scanning unit drive motor not running
Cause 1
: Faulty connection of the flat cable connector
Corrective action : Securely connect the flat cable connector.
Cause 2
: Faulty scanning unit drive motor
Corrective action : Replace the drive unit.
Cause 3
: Faulty main PCB
4. LED of the contact image sensor not lighting
Cause 1
: Faulty connection of the connector
Corrective action : Securely connect the flat cable.
Cause 2
5-3
CHAPTER 5
III. LOCATION OF ELECTRICAL PARTS
CanoScan FB330P/FB630P
1
2
3
q Main PCB
w Contact Image Sensor
e Scanning Unit Drive Motor
Figure 5-1
5-4
CHAPTER 5
1
2
3
4
5
q
w
e
r
t
Main PCB
Contact Image Sensor
Home Position Sensor
Start Button
Scanning Unit Drive Motor
Figure 5-2
5-5
CHAPTER 5
IV. CANON SCANNER TEST
A. Outline
Canon Scanner Test is utility software to check if faulty scanner operation is due to
hardware or communication with a host computer.
CanoScan FB330P/FB630P : Scnfbp.exe
CanoScan FB630U/FB636U : ScanTestU.exe
B. Canon Scanner Test for CanoScan FB330P/FB630P
1. Operating environment
1) CanoScan FB330P/FB630P
2) PC/AT Compatibles (Pentium or faster is recommended.)
3) Windows95/98/NT Operating System
4) Scanner Device Driver
Note: Install the scanner device driver before using the Canon Scanner Test.
2. Functions
Canon Scanner Test has the following functions.
1) Scanner Information
Product ID, ROM version, etc. are shown when the scanner is properly communicated with
the host computer.
2) Calibration
Calibration for the scanner is performed.
3) Save Test Data
Contact image sensor output is tested and saved as text data "test_dat.txt" in the same
folder with the Canon Scanner Test.
4) Scan
Any image is scanned and saved as image file in the same folder with the Canon Scanner
Test.
5-6
CHAPTER 5
3. Functions descriptions
Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-3.
Figure 5-3
· LPT No.
· P1284 Mode
· Product ID
· ROM Version
: Parallel Port No. where the scanner is connected.
: Communication status between the scanner and host computer. Hardware
ECP(DMA), Hardware ECP, Software ECP, or Nibble.
: Product name of the scanner connected.
: Firmware version within the scanner.
5-7
CHAPTER 5
2) Calibration
Select "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 in
Figure 5-5 is displayed.
Figure 5-5
5-8
CHAPTER 5
3) Save Test Data
Select "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" to
close the function.
Figure 5-7
5-9
CHAPTER 5
4) Scan
Select "Scan" from the "Function" menu to display a dialog as shown in Figure 5-8.
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 (no
file)" is selected, scanned image is read into the memory, then abandoned
after readout. When "Save to TIFF file" is selected, the file of "img0.tif" is set
up in the same folder with the Canon Scanner Test.
File space to be created is as follows.
75 dpi : Approx. 1.6 MByte
600 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.
5 - 10
CHAPTER 5
4. Error Message
Error messages which may occur during Canon Scanner Test, the cause and corrective
actions are described below.
1) When Canon Scanner Test is started, "A required .DLL file, SIFBP2.DLL, was not
found" 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" is
displayed.
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 cable
Corrective Action : Check the flat cable connector. If it has no problem, replace the drive
unit.
Cause 2
Corrective 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 adapter
Corrective Action : Replace the AC adapter.
Cause 3
: Faulty main PCB
Corrective 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.
5 - 11
CHAPTER 5
C. Canon Scanner Test USB for CanoScan FB630U/FB636U
1. Operating environment
Windows environment
1) CanoScan FB630U/FB636U
2) PC/AT Compatibles (Pentium or faster is recommended.)
3) Windows98 Operating System
Macintosh environment
1) CanoScan FB630U/FB636U
2) Power Macintosh
3) Macintosh OS (Version 8.5 or later)
Note: Install the scanner device driver before using the Canon Scanner Test USB.
2. Functions
Canon Scanner Test USB has the following functions.
1) USB Information (Windows only)
Scanner information recognized by Windows.
Product ID, ROM version, etc. are shown when the scanner is properly communicated with
the host computer.
3) Self Test
Scanner self test is performed.
4) Save Test Data
Contact 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) Scan
Any 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.
5 - 12
CHAPTER 5
3. Functions descriptions
1) USB Information
Select "Scanner Information" from the "Function" menu to display as shown in Figure 5-9.
Figure 5-9
·
·
·
·
·
Device Internal Name
Vendor Descrition
Device Description
Port Name
Local Name
:
:
:
:
:
Serial No. of the imaging device recognized by Windows.
Manufacturer name (Canon) of the scanner connected.
Product name of the scanner connected.
Port name of the scanner recognized by Windows.
Product name of the scanner connected.
5 - 13
CHAPTER 5
Select "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
· Product ID
· ROM Version
5 - 14
: Manufacturer name (Canon) of the scanner connected.
: Product name of the scanner connected.
: Scanner controller version.
CHAPTER 5
3) Self Test
Select "Self Test" from the "Function" menu to display a dialog as shown in Figure 5-12
Figure 5-12
Figure 5-13
5 - 15
CHAPTER 5
Click "OK" to perform Self Test. When it has completed normally, a dialog as shown in
Figure 5-14 or Figure 5-15 is displayed.
Figure 5-14
Figure 5-15
5 - 16
CHAPTER 5
4) Save Test Data
Select "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
5 - 17
CHAPTER 5
Click "OK" to save test data. When test data has been saved, a dialog as shown in Figure 518 (Windows) or Figure 5-19 (Macintosh) is displayed.
Figure 5-18
Figure 5-19
5 - 18
CHAPTER 5
5) Scan
Select "Scan" from the "Function" menu to display a dialog as shown in Figure 5-20
Figure 5-20
5 - 19
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 abandoned
after readout. When "Save to TIFF file" is selected, the file of "img0.tif" is set
up in the same folder with the Canon Scanner Test USB.
File space to be created is as follows.
600 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.
5 - 20
CHAPTER 5
6) Start Button Test
When the start button is pressed during the Canon Scanner Test USB, a dialog as shown in
Figure 5-22 is displayed.
Figure 5-22
5 - 21
CHAPTER 5
4. Error Message
Error messages which may occur during Canon Scanner Test USB, the cause and
corrective 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.
Cause 2
2) Scanner Information is not displayed or "Command Inquiry : Scan Head Positioning
Error Occurs" is displayd.
Cause 1
: Lock switch is locked.
Corrective action : Unlock the lock switch.
Cause 2
Cause 3
: Faulty flat cable
Corrective Action : Check the flat cable connector. If it has no problem, replace the drive
unit.
Cause 4
Corrective Action : Replace the contact image sensor.
Cause 5
: Faulty main PCB
Corrective 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 PCB
Corrective 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.
5 - 22
CHAPTER 6
PARTS CATALOG
CanoScan FB330P/CanoScan FB630P
..................................................... 6-1
..................................................... 6-7
CanoScan FB330P/CanoScan FB630P
6-1
FIGURE P01
ACCESSORY
1
2
3
4
5
6
7
6-2
R
A
N
K
Q'
T
Y
FIGURE
&
KEY NO.
PART NUMBER
P01-01
104-0095-0SP
1
CABLE, INTERFACE
02
003-2119-0SP
1
ADAPTOR, AC
JAPAN
003-2120-0SP
1
ADAPTOR, AC
CANADA, LA, HK
003-2121-0SP
1
ADAPTOR, AC
EUR, SINGAPORE, LA
003-2122-0SP
1
ADAPTOR, AC
UK
003-2123-0SP
1
ADAPTOR, AC
AUSTRALIA
03
003-2147-0SP
1
ADAPTOR, AC
ARG, CHINA
04
104-0141-0SP
1
POWER CORD
ARG
05
104-0140-0SP
1
POWER CORD
CHINA
06
002-0632-0SP
1
STAND ASSEMBLY
07
003-7204-0SP
1
TAPE
DESCRIPTION
SERIAL NUMBER/REMARKS
6-3
FIGURE P10
FB330P/FB630P MAIN BODY
1
A4
LTR
B5
2
3
4
3
5
7
14
5
12
6
13
8
9
15
10
B5
11
6-4
A4
LTR
R
A
N
K
Q'
T
Y
FIGURE
&
KEY NO.
PART NUMBER
P10-01
002-0619-0SP
1
DOCUMENT COVER ASSEMBLY
02
002-0624-0SP
1
PLATEN GLASS ASSEMBLY
03
052-0129-0SP
1
SPACER SET
FB330P
052-0126-0SP
1
SPACER SET
FB630P
060-0096-0SP
1
CONTACT IMAGE SENSOR
FB330P
060-0097-0SP
1
FB630P
05
071-0021-0SP
2
SPRING
06
002-0666-0SP
1
SENSOR DRIVE ASSEMBLY
07
NPN
1
SLIDING ROD
08
057-0016-0SP
1
WIRE, DRIVE
09
053-0088-0SP
1
HOOK
10
NPN
1
BASE FRAME
11
053-0085-0SP
1
LOCK, CARRIAGE
12
077-0503-0SP
2
SCREW, M3X5, SELF-TAPP
13
077-0812-0SP
1
14
002-0623-0SP
1
MAIN PCB ASSEMBLY
FB330P
002-0628-0SP
1
MAIN PCB ASSEMBLY
FB630P
084-0167-0SP
1
SEAL
04
15
DESCRIPTION
6-5
6-6
6-7
FIGURE U01
ACCESSORY
1
2
3
6-8
R
A
N
K
Q'
T
Y
FIGURE
&
KEY NO.
PART NUMBER
U01-01
104-0119-0SP
1
CABLE, USB
FB630U
104-0138-0SP
1
CABLE, USB
FB636U
02
002-0632-0SP
1
STAND ASSEMBLY
03
003-7204-0SP
1
TAPE
DESCRIPTION
6-9
FIGURE U10
FB630U MAIN BODY
1
A4
LTR
B5
2
3
4
3
18
5
5
6
15
7
12
8
14
9
19
13
16
17
B5
A4
LTR
10
11
6 - 10
R
A
N
K
Q'
T
Y
FIGURE
&
KEY NO.
PART NUMBER
U10-01
002-0619-0SP
1
02
002-0624-0SP
1
03
052-0130-0SP
1
SPACER SET
04
060-0100-0SP
1
05
071-0021-0SP
2
SPRING
06
002-0667-0SP
1
07
NPN
1
SLIDING ROD
08
057-0016-0SP
1
WIRE, DRIVE
09
053-0088-0SP
1
HOOK
10
NPN
1
BASE FRAME
11
053-0085-0SP
1
LOCK, CARRIAGE
12
077-0503-0SP
3
13
077-0620-0SP
2
14
004-0313-0SP
1
MAIN PCB ASSEMBLY
15
084-0167-0SP
1
SEAL
16
004-0315-0SP
1
BUTTON PCB ASSEMBLY
17
053-0089-0SP
1
BUTTON, FUNCTION
18
104-0133-0SP
1
CABLE, FLAT (BUTTON)
19
071-0022-0SP
2
SPRING, BUTTON
DESCRIPTION
6 - 11
FIGURE U20
FB636U MAIN BODY
1
A4
LTR
B5
2
3
4
3
18
5
6
7
12
14
15
8
9
19
13
16
17
B5
A4
LTR
10
11
6 - 12
R
A
N
K
Q'
T
Y
FIGURE
&
KEY NO.
PART NUMBER
U20-01
002-0669-0SP
1
02
002-0668-0SP
1
03
052-0130-0SP
1
SPACER SET
04
003-5206-0SP
1
05
071-0021-0SP
2
SPRING
06
002-0667-0SP
1
07
NPN
1
SLIDING ROD
08
057-0016-0SP
1
WIRE, DRIVE
09
053-0088-0SP
1
HOOK
10
NPN
1
BASE FRAME
11
053-0099-0SP
1
LOCK, CARRIAGE
12
077-0503-0SP
3
13
077-0620-0SP
2
14
004-0313-0SP
1
MAIN PCB ASSEMBLY
15
084-0168-0SP
1
SEAL
16
004-0315-0SP
1
BUTTON PCB ASSEMBLY
17
053-0089-0SP
1
BUTTON, FUNCTION
18
104-0133-0SP
1
CABLE, FLAT (BUTTON)
19
071-0022-0SP
2
SPRING, BUTTON
DESCRIPTION
6 - 13
APPENDIX
I.
IV. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB330P/FB630P) ......... A-1
II.
(CanoScan FB630U/FB636U) ........ A-2
(CanoScan FB630P) ...................... A-8
V.
MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB630U/FB636U) ...... A-13
III. MAIN PCB CIRCUIT DIAGRAM
(CanoScan FB330P) ...................... A-3
I. GENERAL CIRCUIT DIAGRAM (CanoScan FB330P/FB630P)
J4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CS1
Contact
image sensor
VOUT
NC
AGND
VCC
VREF
SP
CLK
LED COMMON
BLED
GLED
RLED
FGND
NC
NC
NC
NC
AP
AN
BP
BN
J3
J3
J5
Main PCB
M1
Scanning unit
drive motor
1
HSTB
1
PSTB
2
IF0
2
IF0
3
IF1
3
IF1
4
IF2
4
IF2
5
IF3
5
IF3
6
IF4
6
IF4
7
IF5
7
IF5
8
IF6
8
IF6
IF7
9
10 HACK
9 IF7
10 PACK
11 HXBSY
11 PXBSY
12 HXPERR
12 PSPERR
13 HXSEL
13 PXSEL
14 HATFD
14 PATFD
15 HFALT
15 PFALT
16 HAINTT
16 PAINTT
17 HSELIN
17 PSELIN
18 GND
18 GND
19 GND
19 GND
J2
1
2
+10.5V
GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
J5
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
A-1
II. GENERAL CIRCUIT DIAGRAM (CanoScan FB630U/FB636U)
J3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CS1
Vob
NC
AGND
Vcis
Vref
TR
PH1
Vcc
B
G
R
GND
GND
PA+
PAPB+
PBJ1
Main PCB
1
2
3
4
M1
Contact
image sensor
+5V
DD+
GND
Scanning unit
drive motor
J2
1
2
3
4
HMSEN
GND
VCC
BTON
Button PCB
A-2
III. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB330P)
(1/5)
-+5R
VCC
Q2
1
O
FBI
3
1
3
2
4
G
L1
1 (+Volt)
3
2
C7
C10
+
+
C8
C49
2
J2
I
S1
+5M
Q1
I
O
3
G
1
C6
2
C5
U1
PHAP
PHAN
PHBP
PHBN
2
6
13
9
8
4
11
IN1
IN2
IN3
IN4
OUT1
OUT2
OUT3
OUT4
VCONT VCC
VS1
VS2
GND
GND
3
5
12
10
AP
AN
BP
BN
1
7
14
C14
+
C15
A-3
(2/5)
TP8
R31
SHCLK
R32
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
GND
U7
BUFA0
BUFA1
BUFA2
BUFA3
BUFA4
BUFA5
BUFA6
BUFA7
BUFA8
BUFA9
BUFA10
BUFA11
BUFA12
BUFA13
BUFA14
BUFA15
BUFA16
VO0
VO1
VO2
VO3
VO4
VO5
VO6
VO7
13
14
15
17
18
19
20
21
VCC
32
E2
30
WE
G
E1
29
24
22
BLEDON
GLEDON
RLEDON
ORSCK
OTRCK
OCPCK
R4
PHBN
PHBP
PHAN
PHAP
1
ADCLK
U4A
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD110
AD111
VOC
U4B
2
4
FB2
I16M
R16
B4T
CP3
Check Pad
C21
C27
C28
BIT
Y1
BIT
VCC
BFWEN
BFOEN
BFCEN
VCC
C24
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
C48
C20
VSS
VSS
ARCP
SHCLK
ADCLK
ADI11
ADI10
AD19
AD18
AD17
AD16
AD15
AD14
AD13
AD12
AD11
AD10
AVSS
AVDD
BLED
GLEDON
RLEDON
ORSCK
OTRCK
OCPCK
CSCLK
AVSS
AVDD
PHBN
PHBP
PHAN
PHAP
AVSS
AVDD
B8T
B4T
B2T
B1T
VSS
VSS
16
C50
BUFA0
BUFA1
BUFA2
BUFA3
BUFA4
BUFA5
BUFA6
BUFA7
C38
BUFA8
BUFA9
BUFA10
BUFA11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VDD
AVSS
I16M
IRESET
IHSYNC
OHSYNC
LSYNC
PMFCK
XINT
RDN
WRN
ASTB
AVSS
AVDD
BAD0
BAD1
BAD2
BAD3
BAD4
VSS
VDD
BAD5
BAD6
BAD7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
ACCL
BUFSEL
DMAWR
PMENB
HBSYIN
UPBSY
UPACK
VDD
VDD
BFD7
BFD6
BFD5
BFD4
BFD3
BFD2
BFD1
BFD0
BUFA0
BUFA1
BUFA2
BUFA3
AVDD
AGND
BUFA4
BUFA5
BUFA6
BUFA7
VDD
VSS
BUFA8
BUFA9
BUFA10
BUFA11
AVDD
AVSS
BUFA12
BUFA13
BUFA14
BUFA15
BUFA16
BFWEN
BFOEN
TSTFLG
TESTMD
TESTCSN
XIFDIR
XIFEN
VDD
C47
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
VSS
VSS
PACK
PXBSY
PXPERR
PXSEL
PFALT
AVDD
AVSS
PSTB
PATFD
PINIT
PSELIN
AVDD
AVSS
HACK
HXBSY
HXPERR
HXSEL
HFALT
HSTB
HATFD
HINIT
HSELIN
AVDD
AVSS
IFD0
IFD1
IFD2
AVDD
AVSS
IFD3
IFD4
IFD5
AVDD
AVSS
IFD6
IFD7
VSS
VSS
BUFA12
BUFA13
BUFA14
BUFA15
BUFA16
BFWEN
BFOEN
PACK
PXBSY
PXPERR
PXSEL
PFALT
C34
HACK
HXBSY
HXPERR
HXSEL
HFALT
PSTB
PATFD
PINIT
PSELIN
A-4
3
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
I16M
RESETN
OHSYNC
LSYNG
PMFCK
XINT
RDN
WRN
ASTB
BAD0
BAD1
BAD2
BAD3
BAD4
BAD5
BAD6
BAD7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
ACCL
BUFSEL
DMAWR
PMENB
HBSYIN
UPBSY
UPACK
C25
C30
U5
IFD0
IFD1
IFD2
IFD3
IFD4
IFD5
IFD6
IFD7
HSTB
HATFD
HINIT
HSELIN
(3/5)
VCC
ASTB
WRN
RDN
C18
R3
ASTB
WRN
RDN
TP7
TP6
TP5
RA6
1
2
3
4
TP3
8
7
6
5
TP4
For Function Checker
TP2
TP1
RA3
BAD0
BAD1
BAD2
BAD3
BAD4
BAD5
BAD6
BAD7
C26
ACCL
ADCEN
DMAWR
BUFSEL
R36
CP1
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
Check Pad
R13
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P47/AD7
P46/AD6
P45/AD5
P44/AD4
P43/AD3
P42/AD2
P41/AD1
P40/AD0
P67/ASTB
P66/WAIT
P65/WR
P64/RD
P75/BUZ
P74/PCL
P73/TI51/TO51
P72/TI50/T
U2
P50/A8
P51/A9
P52/A10
P53/A11
P54/A12
P55/A13
P56/A14
P57/A15
VSS0
VDD0
P30
P31
P32
P33
P34/S131
P35/SO32
C23
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P71/TI01
P70/TI00/TO0
P03/INTP3/ADTRG
P02/INTP2
P01/INTP1
P00/INTP0
VSS1
X1
X2
IC
XT1
XT2
RESET
AVDD
AVREF
P10/AN10
XINT
PMFCK
LSYNC
OHSYNC
8
U4D
9
6
U4C
5
B4T
R12
XINT
PMFCK
LSYNC
OHSYNC
O50
R35
8
7
6
5
C13
RESETN
C12
P36/SCK31
P20/SI30
P21/SO30
P22/SCK30
P23/RxD0
P24/TxD0
P25/ASCK0
VDDI
AVSS
P17/AN17
P16/AN16
P15/AN15
P14/AN14
P13/AN13
P12/AN12
P11/AN11
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
VCC
1
2
3
4
VCC
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
HA15
HA14
HA13
HA12
HA11
HA10
HA9
HA8
BAD0
BAD1
BAD2
BAD3
BAD4
BAD5
BAD6
BAD7
+5M
PMENB
R5
VCC
12
U4F
13
10
U4F
D1
11
C22
R33
R34
SDIO
SDCLK
BFCEN
SDIO
SDCLK
BFCEN
A-5
11
(4/5)
R7
3
VCC
2
VEE
+
1
-
R18
B
C
Q6
U3A
R6
E
R14
VCC
VCC
C
Q10
B
11
BLEDON
5
6
7
R17
B
C
Q4
U3B
4
E
CIS OUT
C
Q9
B
RLEDON
R22
RLEDON
OTRCK
BIT
ORSCK
OCPCK
11
E
9
VEE
+
8
-
R15
B
R21
FD3
R19
C
Q3
U3C
E
4
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R11
VCC
VCC
10
BN
BP
AN
AP
BN
BP
AN
AP
E
+
VCC
J4
VEE
-
+5R
BLEDON
R8
VCC
C52
VCC
C
Q5
B
GLEDON
SHCLK
GLEDON
C53
C32
E
VCC
4
11
+5R
C19
VEE
12
13
+
C39
14
-
U3D
4
C33
VCC
36
35
34
33
32
31
30
29
28
27
26
25
VCC
C41
U6
+
37
38
39
40
41
42
43
44
45
46
47
48
C46
C44
C45
C43
C42
RESETN
AVSS1
CN0
VREF1
VREF2
VWHTVWHT+
AVDD1
AVSS2
TEST
RESETB
SWB
SB
BD4
BD3
BD2
BD1
BD0
ADCLK
VD11
VD10
VD9
VD8
VD7
VD6
OEB
CSB
RDB
WRB
VD0
VD1
VD2
VD3
VD4
VD5
PVDD
PVSS
RESETN
CN1
AVDD0
CN2
AVSS0
CKSL
CKSH
BD8
BD7
BD6
BD5
DVSS
DVDD
C51
VCC
SDCLK
R25
ADCLK
ADI11
ADI10
ADI9
ADI8
ADI7
ADI6
VCC
C29
SDCLK
ADCEN
ADCEN
SDIO
SDIO
ADI5
ADI4
ADI3
ADI2
ADI1
ADI0
A-6
ADCLK
ADI11
ADI10
ADI9
ADI8
ADI7
ADI6
R26
1
2
3
4
5
6
7
8
9
10
11
12
R27
24
23
22
21
20
19
18
17
16
15
14
13
ADI5
ADI4
ADI3
ADI2
ADI1
ADI0
(5/5)
VCC
RA4
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
VCC
RA2
RA7
RA1
R2
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
VCC
R9
HFALT
J3
1
14
RA10
IFD0
IFD1
IFD2
IFD3
Q7
1
2
3
4
2
8
7
6
5
RA5
15
16
4
17
HSTB
HATFD
HINIT
HSELIN
5
E
18
RA9
UPACK
B
8
7
6
5
1
2
3
4
3
C
E
UPBSY
IFD4
IFD5
IFD6
IFD7
6
8
7
6
5
1
2
3
4
19
C17
7
20
C16
8
21
Q8
C11
9
B
1
2
3
4
HACK
HXBSY
HXPERR
HXSEL
22
RA11
C
C9
10
8
7
6
5
23
11
24
12
25
13
HBSYIN
VCC
8
7
6
5
8
7
6
5
VCC
RA12
RA15
1
2
3
4
R24
1
2
3
4
R23
PFALT
C31
J5
1
14
2
RA13
15
3
16
4
17
5
1
2
3
4
8
7
6
5
PSTB
PATFD
PINIT
PSELIN
18
6
19
7
20
8
21
9
22
RA14
1
2
3
4
PACK
PXBSY
PXPERR
PXSEL
8
7
6
5
10
23
11
24
12
25
13
C37
C36
C35
C40
A-7
IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630P)
(1/5)
-+5R
VCC
Q2
1
O
FBI
3
1
3
2
4
G
L1
1 (+Volt)
3
2
C7
C10
+
+
C8
C49
2
J2
I
S1
+5M
Q1
I
O
3
G
1
C6
2
C5
U1
PHAP
PHAN
PHBP
PHBN
2
6
13
9
8
4
11
A-8
IN1
IN2
IN3
IN4
OUT1
OUT2
OUT3
OUT4
VCONT VCC
VS1
VS2
GND
GND
3
5
12
10
AP
AN
BP
BN
1
7
14
C14
+
C15
(2/5)
TP8
R31
SHCLK
R32
U7
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
VO0
VO1
VO2
VO3
VO4
VO5
VO6
VO7
GND
BUFA0
BUFA1
BUFA2
BUFA3
BUFA4
BUFA5
BUFA6
BUFA7
BUFA8
BUFA9
BUFA10
BUFA11
BUFA12
BUFA13
BUFA14
BUFA15
BUFA16
E2
30
WE
G
E1
29
24
22
PHBN
PHBP
PHAN
PHAP
1
U4A
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD110
AD111
VOC
32
R4
ADCLK
13
14
15
17
18
19
20
21
VCC
BLEDON
GLEDON
RLEDON
ORSCK
OTRCK
OCPCK
U4B
2
4
FB2
I16M
R16
B4T
CP3
Check Pad
C21
C27
C28
BIT
Y1
BIT
VCC
BFWEN
BFOEN
BFCEN
VCC
C24
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
C48
C20
VSS
VSS
ARCP
SHCLK
ADCLK
ADI11
ADI10
AD19
AD18
AD17
AD16
AD15
AD14
AD13
AD12
AD11
AD10
AVSS
AVDD
BLED
GLEDON
RLEDON
ORSCK
OTRCK
OCPCK
CSCLK
AVSS
AVDD
PHBN
PHBP
PHAN
PHAP
AVSS
AVDD
B8T
B4T
B2T
B1T
VSS
VSS
16
C50
BUFA0
BUFA1
BUFA2
BUFA3
BUFA4
BUFA5
BUFA6
BUFA7
C38
BUFA8
BUFA9
BUFA10
BUFA11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
VDD
AVSS
I16M
IRESET
IHSYNC
OHSYNC
LSYNC
PMFCK
XINT
RDN
WRN
ASTB
AVSS
AVDD
BAD0
BAD1
BAD2
BAD3
BAD4
VSS
VDD
BAD5
BAD6
BAD7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
ACCL
BUFSEL
DMAWR
PMENB
HBSYIN
UPBSY
UPACK
VDD
VDD
BFD7
BFD6
BFD5
BFD4
BFD3
BFD2
BFD1
BFD0
BUFA0
BUFA1
BUFA2
BUFA3
AVDD
AGND
BUFA4
BUFA5
BUFA6
BUFA7
VDD
VSS
BUFA8
BUFA9
BUFA10
BUFA11
AVDD
AVSS
BUFA12
BUFA13
BUFA14
BUFA15
BUFA16
BFWEN
BFOEN
TSTFLG
TESTMD
TESTCSN
XIFDIR
XIFEN
VDD
C47
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
VSS
VSS
PACK
PXBSY
PXPERR
PXSEL
PFALT
AVDD
AVSS
PSTB
PATFD
PINIT
PSELIN
AVDD
AVSS
HACK
HXBSY
HXPERR
HXSEL
HFALT
HSTB
HATFD
HINIT
HSELIN
AVDD
AVSS
IFD0
IFD1
IFD2
AVDD
AVSS
IFD3
IFD4
IFD5
AVDD
AVSS
IFD6
IFD7
VSS
VSS
BUFA12
BUFA13
BUFA14
BUFA15
BUFA16
BFWEN
BFOEN
PACK
PXBSY
PXPERR
PXSEL
PFALT
C34
HACK
HXBSY
HXPERR
HXSEL
HFALT
PSTB
PATFD
PINIT
PSELIN
3
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
I16M
RESETN
OHSYNC
LSYNG
PMFCK
XINT
RDN
WRN
ASTB
BAD0
BAD1
BAD2
BAD3
BAD4
BAD5
BAD6
BAD7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
ACCL
BUFSEL
DMAWR
PMENB
HBSYIN
UPBSY
UPACK
C25
C30
U5
IFD0
IFD1
IFD2
IFD3
IFD4
IFD5
IFD6
IFD7
HSTB
HATFD
HINIT
HSELIN
A-9
(3/5)
VCC
ASTB
WRN
RDN
C18
R3
ASTB
WRN
RDN
TP7
TP6
TP5
RA6
1
2
3
4
TP3
8
7
6
5
TP4
For Function Checker
TP2
TP1
RA3
BAD0
BAD1
BAD2
BAD3
BAD4
BAD5
BAD6
BAD7
C26
ACCL
ADCEN
DMAWR
BUFSEL
R36
CP1
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
Check Pad
R13
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P47/AD7
P46/AD6
P45/AD5
P44/AD4
P43/AD3
P42/AD2
P41/AD1
P40/AD0
P67/ASTB
P66/WAIT
P65/WR
P64/RD
P75/BUZ
P74/PCL
P73/TI51/TO51
P72/TI50/T
U2
P50/A8
P51/A9
P52/A10
P53/A11
P54/A12
P55/A13
P56/A14
P57/A15
VSS0
VDD0
P30
P31
P32
P33
P34/S131
P35/SO32
C23
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
P71/TI01
P70/TI00/TO0
P03/INTP3/ADTRG
P02/INTP2
P01/INTP1
P00/INTP0
VSS1
X1
X2
IC
XT1
XT2
RESET
AVDD
AVREF
P10/AN10
XINT
PMFCK
LSYNC
OHSYNC
8
U4D
9
6
U4C
5
B4T
R12
XINT
PMFCK
LSYNC
OHSYNC
O50
R35
8
7
6
5
C13
RESETN
C12
P36/SCK31
P20/SI30
P21/SO30
P22/SCK30
P23/RxD0
P24/TxD0
P25/ASCK0
VDDI
AVSS
P17/AN17
P16/AN16
P15/AN15
P14/AN14
P13/AN13
P12/AN12
P11/AN11
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
VCC
1
2
3
4
VCC
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
HA15
HA14
HA13
HA12
HA11
HA10
HA9
HA8
BAD0
BAD1
BAD2
BAD3
BAD4
BAD5
BAD6
BAD7
+5M
PMENB
R5
VCC
12
U4F
13
10
U4F
D1
11
C22
R33
R34
SDIO
SDCLK
BFCEN
A - 10
SDIO
SDCLK
BFCEN
11
(4/5)
R7
3
VCC
2
VEE
+
1
-
R18
B
C
Q6
U3A
R6
E
R14
VCC
VCC
C
Q10
B
11
BLEDON
5
6
+
7
R17
B
J4
C
Q4
U3B
4
E
CIS OUT
C
Q9
B
RLEDON
R22
RLEDON
OTRCK
BIT
ORSCK
OCPCK
11
E
9
VEE
+
8
-
R15
B
R21
FD3
R19
C
Q3
U3C
E
4
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R11
VCC
VCC
10
VCC
BN
BP
AN
AP
BN
BP
AN
AP
E
VEE
-
+5R
BLEDON
R8
VCC
C52
VCC
C
Q5
B
GLEDON
SHCLK
GLEDON
C53
C32
E
VCC
4
11
+5R
C19
VEE
12
13
+
C39
14
-
U3D
4
C33
VCC
36
35
34
33
32
31
30
29
28
27
26
25
VCC
C41
U6
+
37
38
39
40
41
42
43
44
45
46
47
48
C46
C44
C45
C43
C42
RESETN
AVSS1
CN0
VREF1
VREF2
VWHTVWHT+
AVDD1
AVSS2
TEST
RESETB
SWB
SB
BD4
BD3
BD2
BD1
BD0
ADCLK
VD11
VD10
VD9
VD8
VD7
VD6
OEB
CSB
RDB
WRB
VD0
VD1
VD2
VD3
VD4
VD5
PVDD
PVSS
RESETN
CN1
AVDD0
CN2
AVSS0
CKSL
CKSH
BD8
BD7
BD6
BD5
DVSS
DVDD
C51
VCC
SDCLK
R25
ADCLK
ADI11
ADI10
ADI9
ADI8
ADI7
ADI6
VCC
C29
SDCLK
ADCEN
ADCEN
SDIO
SDIO
ADI5
ADI4
ADI3
ADI2
ADI1
ADI0
ADCLK
ADI11
ADI10
ADI9
ADI8
ADI7
ADI6
R26
1
2
3
4
5
6
7
8
9
10
11
12
R27
24
23
22
21
20
19
18
17
16
15
14
13
ADI5
ADI4
ADI3
ADI2
ADI1
ADI0
A - 11
(5/5)
VCC
RA4
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
VCC
RA2
RA7
RA1
R2
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
VCC
R9
HFALT
J3
1
14
RA10
IFD0
IFD1
IFD2
IFD3
Q7
1
2
3
4
2
8
7
6
5
RA5
15
16
4
17
HSTB
HATFD
HINIT
HSELIN
5
E
18
RA9
UPACK
B
8
7
6
5
1
2
3
4
3
C
E
UPBSY
IFD4
IFD5
IFD6
IFD7
6
8
7
6
5
1
2
3
4
19
C17
7
20
C16
8
21
Q8
C11
9
B
1
2
3
4
HACK
HXBSY
HXPERR
HXSEL
22
RA11
C
C9
10
8
7
6
5
23
11
24
12
25
13
HBSYIN
VCC
8
7
6
5
8
7
6
5
VCC
RA12
RA15
1
2
3
4
R24
1
2
3
4
R23
PFALT
C31
J5
1
14
2
RA13
15
3
16
4
17
5
1
2
3
4
8
7
6
5
PSTB
PATFD
PINIT
PSELIN
18
6
19
7
20
8
21
9
22
RA14
1
2
3
4
PACK
PXBSY
PXPERR
PXSEL
8
7
6
5
10
23
11
24
12
25
13
C37
C36
C35
C40
A - 12
V. MAIN PCB CIRCUIT DIAGRAM (CanoScan FB630U/FB636U)
VOS
(1/3)
TP3
VIS
TP1
C77
VOB
C56
C59
TP4
TR
R61
REN
GEN
BEN
TR
C70
TP2
TP
C62
C69
C61
C68
C58
C67
C57
R60
PH1
C75
C76
65
66
67
89
90
86
87
83
84
82
85
88
91
100
99
98
97
96
95
94
C64 C66 C72 C79
LAMP R
LAMP G
LAMP B
VREF HI FORCE
VREF HI SENSE
VREF MID FORCE
VREF MID SENSE
VREF LO FORCE
VREF LO SENSE
29
24
22
CLOCK IN
CLOCK OUT
MA+
MAMB+
MB-
SENA
SENB
HMSEN
C53
(MOTOR GND)
61
62
63
64
R48
VCC
R51
R50
R49
57
58
R56
R47
SELECT
PE
BUSY
ACT
D7
D6
D5
D4
D3
SELECT IN
D2
INIT
D1
ERROR
DO
AUTOFEED
STROBE
TRISTATE
LATCH
CKO
C45
BUSY
PD7
PD6
PD5
PD4
PD3
PD2
PD7
PD6
PD5
PD4
PD3
-SLIN
PD2
-INIT
PD1
PD1
PD0
PD0
-AUFD
-STB
54
56
68
TEST
BIAS
53
52
51
50
49
48
47
46
43
42
41
40
39
38
37
36
35
76
7
20
45
70
6
19
44
69
CMODE
55
RD
WR
VD I/O
VD I/O
VD I/O
VD I/O
33
34
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
SUBSTRATE
[A0..A16]
1
2
3
4
5
8
9
10
11
12
13
14
15
16
17
18
21
22
71
R31
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
VA
AGND
VA
AGND
WE
G
E1
8
7
6
5
1
2
3
4
72
73
74
75
77
78
79
R52
80
81
92
93
R63
E2
PSENSE#1
PSENSE#2
MISCI/0#1
MISCI/0#2
C65
30
RA6
A
A
B
B
SENSE A
SENSE B
SENSE GND
32
VD INT SRAM
DGND INT SRAM
5
6
7
8
VCC
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
59
60
4
3
2
1
VCC
23
24
25
26
27
28
29
30
13
14
15
17
18
19
20
21
VD
DGND
RA3
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
31
32
5
6
7
8
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
DGND I/O
DGND I/O
DGND I/O
DGND I/O
RA4
4
3
2
1
5
6
7
8
4
3
2
1
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
16
A16
RA5
U8
5
6
7
8
4
3
2
1
GND
RA7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
VBANDGAP
CP2
CP1
RS
iÍ2
iÍ1
TR2
TR1
OS R
OS G
OS B
U10
VCC
VCC
VCIS
VCC
C31
C55
C50
C44
C51
C43
C48
C63
C54
C60
C74
VCIS
C78
C80
C86
R65
C71
A - 13
(2/3)
14
U4C
VCC
5
BUSY
+5VD
R28
6
9
U4D
VCC
14
+5VD
R27
8
R14
C15
R32
-STB
C29
R38
-AUFD
R37
-SLIN
C18
3
4
25
26
27
IOR#/WR#
IOW#/WAIT#
CLKOUT
URST
OSCSEL
RSTYPE
MODE
DSTRB#
ASTRB#
RA1
8
7
6
5
8
7
6
5
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
INT#
GD0
GD1
GD2
GD3
GD4
GD5
GD6
GD7
1
2
3
4
1
2
3
4
RA2
D0
D1
D2
D3
D4
D5
D6
D7
GX1
24
23
1
14
2
3
GD+
GD-
U4B
VCC
14
VCC
U4A
4
16
17
VCP
D+
D-
9
18
31
R23
39
40
DSTRB#
ASTRB#
28
-WAKEUP
29
30
33
34
35
36
37
38
GP101
GP102
GP103
15
V33
-WAKEUP
R35
R34
GP105
GP106
GP107
(BUTTON)
GP103
(SUSPEND)
(UNCONFIG)
GP105
GP103
VCC
VCC
VCC
+5VD
R40
R39
-INIT
C33
R45
GP107
R43
21
22
20
NC
NC
NC
+5VD
R21
R15
URST
V33
X1
X2
C28
C21
CS#/GP101
EOP#/GP102
DACK#/GP103
DRQ/GP104
AO/GP105
A1/GP106
A2/GP107
A3/INIT#
CK48
R36
+5VD
5
6
7
8
11
12
13
14
1
2
C19
R44
10
19
32
GND
GND
GND
+5VD
14
WR#
WAIT#
+5VD
C46
R11
U5
C35 C36 C37 C38 C39 C40 C41 C42
C47
U4E
L3
C17
C34
C20
11
Y1
VBUS
+ C5
R3
C4
R25
C23
U4F
J1
C26
1
2
3
4
R5
R4
13
VCC
C14
10
+5VD
L1
14
C16
VCC
R30
R29
12
+5VD
R13
+5VD
V33
R9
C27
GD+
C13
G
R20
C12
5
D Q8
+5VD
S
1
-CKON
4
2
+5VD
R22
(SUSPEND)
+5VD
Q
Q
5
B
C
R6
R42
C32
6
S1
G1
S2
G2
R19
E
C
1
B
Q2
11
CLK
PRE
D
CLR
CK48
VCC
Q
Q
GP107
1
4
S
CK0
Q4
B
G
12
8
7
6
5
R7
Q5
(BUTTON)
GP103
9
D1
D1
D2
D2
Q1
+5VD
5
10
14
D
PRE
3
+5VD
U7B
D
CLR
R8
+5VD
VCC
U7A
2
1
2
3
4
4
14
R33
C25
GP105
VP1
U1
+5VD
E
S
C
DQ9
G
-CKON
E
R24
2
8
U3
-WAKEUP
13
+5VD
R16
GP107
Q7
D
D Q6
G
G
GD+
S
S
A - 14
(3/3)
VPI
1.2
VCC
R12
+
R10
8
7
6
5
R17
VPI
C3
C8
D/C
IPK/2
VIN
C/1
1
2
3
4
S/C
OUT
T/C
GND
C9
D1
C11
C6
VCIS
Q3
R26
R1
+
2
+
C1
C2
VIN
VOUT
C10
R2
+
C24
C81
C22
R66
1
R18
R71
3
VSS
+
C7
U2
VCIS
R90
11
C84
12
C85
R74
U12D
VEE
VPI
+
13
R46
R88
14
VCIS
-
+
C83
C87
C30 +
C90
4
R67
R82
VCC
U9
1
2
3
4
5
R72
C73
J3
R64
VCIS
TR
VCC
R83
PH1
MA+
MA-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
VOB
C89
PA+
PAPB+
PB-
MA+
MA-
VCC
IN4
IN3
IN1
IN2
OUT4
OUT3
OUT1
OUT2
GND
10
9
8
7
6
(A+)
(A-)
R59
R55
PA+
PA-
R58
R62
PBPB+
R54
R41
SENA
C49
U11
MBMB+
1
2
3
4
5
MBMB+
VCC
IN4
IN3
IN1
IN2
OUT4
OUT3
OUT1
OUT2
GND
R53
10
9
8
7
6
(B-)
(B+)
R57
SENB
11
C52
U12A
VEE
CQ13
R73
3
VCIS
R69
2
B
+
1
R85
-
4
E
R79
VCC
VCC
VCIS
CQ12
C88
R78
B
11
REN
VCC
U12B
VEE
E
CQ14
R76
5
VCIS
R70
6
7
R86
1
2
3
4
E
4
R84
HMSEN
J2
B
+
HMSEN
R80
VCC
VCIS
CQ10
B
+5VD
11
GEN
U12C
E
R89
R68
D2
VEE
CQ15
R77
10
VCIS
R75
9
B
+
8
GP103
R87
C82
(BUTTON)
-
4
E
R81
VCC
VCIS
CQ11
B
BEN
E
A - 15
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)
The printing paper contains
70% waste paper
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.

SERIES

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