Epson GT-9600 Service manual

GT-9000
EPSON
PRODUIT
EPSON France S.A.
SERVICE MANUAL
6(59,&(0$18$/
Color Imaging Scanner
EPSON GT-9600
®
SESC98003
Notice
† All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic,
mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
† All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
greatly appreciate being informed of them.
† The contents of this manual are subject to change without notice.
† All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
greatly appreciate being informed of them.
† The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:
Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their
respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 1998 SEIKO EPSON CORPORATION. Printed in Japan.
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.
DANGER
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in
performing procedures preceded by DANGER Headings.
WARNING
Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY
MAINTENANCE OR REPAIR PROCEDURES.
2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED
FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.
3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL
INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON
POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/
RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT
CONNECT IT TO THE POWER SOURCE.
3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR
REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS
ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.
5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF
SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE
EPSON WARRANTY.
About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of GT-9600. The
instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on
the preceding page.
Contents
Symbols Used in This Manual
This manual consists of six chapters and Appendix.
CHAPTER 1. PRODUCT DESCRIPTIONS
Provides a general overview and specifications of the
product.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of electrical and mechanical
operations of the product.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Provides the step-by-step procedures for
disassembling and assembling the product.
CHAPTER 4. TROUBLESHOOTING
Describes the step-by-step procedures for
the troubleshooting.
CHAPTER 5. ADJUSTMENTS
Provides Epson-approved methods for adjustment.
CHAPTER 6. MAINTENANCE
Provides preventive maintenance procedures and the
lists of Epson-approved lubricants and adhesives
required for servicing the product.
APPENDIX Provides the following additional information for
reference:
• Connector pin assignments
• Electric circuit boards components layout
• Exploded diagram
• Electrical circuit boards schematics
Various symbols are used throughout this manual either to provide
additional information on a specific topic or to warn of possible danger
present during a procedure or an action. Be aware of all symbols when
they are used, and always read WARNING, CAUTION or NOTE
messages.
Indicates an operating or maintenance procedure, practice
or condition that, if not strictly observed, could result in injury
or loss of life.
C A U T IO N
C H E C K
P O IN T
Indicates an operating or maintenance procedure, practice,
or condition that, if not strictly observed, could result in
damage to, or destruction of, equipment.
May indicate an operating or maintenance procedure,
practice or condition that is necessary to accomplish a task
efficiently. It may also provide additional information that is
related to a specific subject, or comment on the results
achieved through a previous action.
Revision Status
Revision
Rev. A
Issued Date
December 2, 1998
Description
First Release
EPSON GT-9600
Revision A
Table of Contents
Product Description
Disassembly and Assembly
Overview......................................................................................................... 3
Features .................................................................................................... 3
Disassembly and Assembly ......................................................................... 14
Bottom Plate Removal ............................................................................ 14
B035 Power Supply Board Removal ....................................................... 14
B077 MAIN Board Removal .................................................................... 15
CR Motor Removal.................................................................................. 16
Lamp Assembly Removal ....................................................................... 17
Specifications ................................................................................................. 3
General Specifications .............................................................................. 3
Electrical Specification .............................................................................. 4
Safety, EMC .............................................................................................. 4
Resistance to electric noise....................................................................... 5
Environmental Conditions ......................................................................... 5
Reliability ................................................................................................... 5
Operating Conditions................................................................................. 5
Document .................................................................................................. 5
Physical Dimension ................................................................................... 5
Interface.......................................................................................................... 6
SCSI .......................................................................................................... 6
Switch and Lamps .......................................................................................... 8
Switch........................................................................................................ 8
Error .......................................................................................................... 9
Cause and Remedy when errors happen....................................................... 9
Command Specification.................................................................................. 9
Control Code .................................................................................................. 9
Control Code ............................................................................................. 9
Function of Control Codes......................................................................... 9
Resolution Setting .......................................................................................... 9
Download color correction .............................................................................. 9
Set Threshold ................................................................................................. 9
Set Film Type ................................................................................................. 9
Adjustment
Adjustment ................................................................................................... 20
Troubleshooting
Maintenance
Appendix
Scanner Connection ..................................................................................... 26
Connector ..................................................................................................... 26
Board Component Layout ............................................................................ 28
Exploded Diagram........................................................................................ 29
Circuit Shematics ......................................................................................... 33
Main Components ........................................................................................ 10
B077 Main Board..................................................................................... 10
B077 ISN Board ...................................................................................... 10
Operating Principles
Control Circuit............................................................................................... 12
Overview of Control Circuit...................................................................... 12
1
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PRODUCT DESCRIPTION
EPSON GT-9600
Revision A
1.1 Overview
This scanner is a revised model of GT-9500 and high-resolution color
image scanner for the various use from the designer to the office user.
Main features of this scanner are as follow.
1.1.1 Features
† High Quality:
800 dpi, 12bit-in, 12bit-out
OD Value MAX 3.3
† High Speed:
Exposure Time
Scanning Time
7.5msec/line at 800dpi
75 Sec/A4, Full color
† Command Level: ESC/I-B8
† I/F:
SCSI
Figure 1-1. Exterior View of GT-9600
Table 1-1. Optional Items
No.
Name
B81316*
ADF(Auto Document Feeder)
B81315*
TPU (Transparency Uni)
1.2 Specifications
1.2.1 General Specifications
NOTE: * The number represented by an asterisk varies, depending
on the country.
† Product Type*
Flatbed color image scanner
† Sub-scanning device:
Movement of the Scanning Head
† Photoelectric device:
Color CCD Line Sensor
† Maximum Read Area:
8.5 x 11.7 (216 x 297 mm)
† Maximum Effective Picture Element:6800 x 9360 pixels(800dpi)
Product Description
† Scanning Resolution:
Main 800 dpi
optical
Sub Max.3200 dpi with microstep
† Output Resolution:
50 ∼ 6400 dpi (1 dpi step)
Overview
3
EPSON GT-9600
Revision A
† Scanning Speed(600 dpi, Draft Mode):
Color
7.5 msec/line
Monochrome(bi-level) 7.5 msec/line
† Color Separation:
By the color filter of CCD
† Command Level:
ESC/I-B8
† Zoom:
50% to 200% (1% step)
† Pixel depth:
1-12 bits/pixel (Input 12 bits/pixel)
† Rated Voltage:
AC100-120V/220V-240V
† Input Voltage:
AC100 -120V ±10%
AC220 -240V ±10%
† Rated Current:
0.8A(Input AC 100V)
0.4A(Input AC 220V)
† Rated Frequency Range:50-60 Hz
† Input Frequency Range: 49.5-60.5 Hz
† Gamma Correction:
CRT 2 level (A, B)
PRINTER 3 level (A, B, C)
User defined 1 level
† Color Correction:
1.2.2 Electrical Specification
Impact-Dot Printer
Thermal Printer
Ink-Jet Printer
CRT Display
† Brightness:
User defined
† Line Art:
7 Level
Fixed threshold
† Digital half-toning:
TET
AAS
† Bi-level, Quad-level:
† Power consumption:
Approx.40W
† Insulation Resistance:
10M Ohms at 500 VDC(between AC line
and chassis)
† Dielectric strength:
AC 1.5kV, 1 min
(between AC Line and chassis)
1.2.3 Safety, EMC
† Safety:
UL1950 (UL)
CSA C22.2 NO.950 (CSA)
EN60950 (VDE)
EN60950 + Nordic deviation(NEMKO)
† EMC:
FCC Part 15 Subpart B Class B
CSA C108.8 Class B
AS/NZS3548 Class B
CISPR Pub22 Class B
CNS13438 Class B
Error Diffusion 3 mode (A,B,C)
Dither(Resident) 4 mode(A, B, C, D)
Dither(User defined) 2 mode (A, B)
† Interface(Resident):
SCSI(50-pin Half pitch Connectors)
† Light Source:
White Cold cathode Fluorescent Lamp
† Option:
TPU, ADF
Product Description
† CE Marking:
Low Voltage Directive 73/23/EEC
Specifications
EN60950
4
EPSON GT-9600
Revision A
EMC Directive 89/336/EEC
1.2.8 Document
EN55022 Class B
EN61000-3-2
EN61000-3-3
EN 50082-1
EC 801-2/801-3/801-4
† Reflective type:
Documents which has a smooth surface
† Transparency type:
(With transparency unit)
Reversal film
Negative film
1.2.4 Resistance to electric noise
Panel - 10kv
Metal-7kV /150pF, 150 Ohms
1.2.5 Environmental Conditions
† Temperature
Operating: 5 °C to 35 °C
Storage: -25 °C to 60 °C
† Humidity
Operating: 10 to 80%, no condensation
Storage: 10 to 85%, no condensation
1.2.9 Physical Dimension
† Dimension
332(W) x 562(D) x 134(H) mm
† Weight
Approximately 8.5Kg
O F F
O N
O P T IO N
S C S I
ID
T E R M IN A T O R
S W
U N L O C K
L O C K
† Static electricity:
1.2.6 Reliability
† Main unit
MCBF 100000 cycle
5 6 2 m m
1.2.7 Operating Conditions
† Dust
Ordinary office or home conditions.
Extreme dust should be avoided.
† Illumination
Operation under direct sunlight or near strong
light source is not guaranteed and should be
avoided.
1 3 4 m m
3 3 2 m m
E R R O R
R E A D Y
O P E R A T E
R E S E T
Product Description
Specifications
O P E R A T E
5
EPSON GT-9600
Revision A
1.3 Interface
SCAM(SCSI Configured Auto Matically specification) [ANSI T10/1142
rev.15]
This section explains interface of this scanner. This scanner is equipped
with SCSI as standard interface. Refer to Service Manual of GT-9500
for pin alignment.
† Electric Specification
Compliant to ANSI X3. 131-1994 (SCSI 2)
Single ended
1.3.1 SCSI
† Connector
Two 50-pin connectors (Half Pitch)
Any items not included in this specification shall be in compliance with
ANSI X3. 131-1994 (SCSI 2).
† Function: The following functions are available, which are included
in ANSI X3. 131-1994 (SCSI 2).
1. Bus free phase
2. Arbitration phase
3. Selection/Re-selection phase
4. Command phase
Note) The LUN(Logical Unit Number) is fixed at “0” in this device.
The command Link Function is not supported.
† Terminator
Internal terminator
Enable to control “active” or “inactive” by a switch. (SW=ON --Terminator available)
† SCSI ID
The SCSI ID is set with a rotary switch on the rear panel.
The switch numbers are corresponded to the available address and
can be set from 0 to 7. Factory setting ID=2.
† Command
This device use the following group “0” processor commands.
Table 1-2. Command List
Command
5. Data phase
Data in phase
Data out phase
6. Status phase
7. Message phase
Message in phase
Message out in phase
8. Attention condition
9. Reset condition
Product Description
Code
Description
Test Unit Ready
00h
Confirm for operation
Request Sense
03h
Require a Sense data*1
Receive
08h
Data transmission from Target to Initiator
Send
0Ah
Data Transmission from Initiator to Target
Inquiry
12h
Require information of SCSI devise*2
Send Diagnostic
1Dh
Send diagnostic
NOTE: *1 Only the extension sense data format is supported for
sense data returned by the Request Sense Command.
*2 The Inquiry data is as follows. (see the next page)
Interface
6
EPSON GT-9600
Revision A
† Status: All bits are defined as follows.
byte
data
0
03h
Peripheral devise type:
: 3(Processor)
1
00h
RMB
:
:0
device Type restriction:
:0
ISO Version
ECMA Version
:
:
:0
:0
ANSI Version
:
:2
AENC
:
:0
TrmI0P
:
Response data format:
:0
:2
2
3
02h
02h
Table 1-3. Status
Status Bits
Status
7
6
5
4
3
2
1
0
Good
R
R
0
0
0
0
0
R
Check
Condition
R
R
0
0
0
0
1
R
Busy
R
R
0
0
1
0
0
R
NOTE: R: means reserved bit.
Table 1-4. Message
Message
Code
Direction
Completion of ATN
Command Complete
00h
In
--
Extended Messages
01h
In/Out
--
Save Data Pointer
02h
In
--
4
23h
5
00h
6
00h
Restore Pointer
03h
In
--
7
00h
Disconnect
04h
In
--
Initiator Detect Error
05h
Out
Yes
Abort
06h
Out
Yes
Message Reject
07h
In/Out
Yes(Out)
No Operation
08h
Out
Yes
Message Parity Error
09h
Out
Yes
Bus Device Reset
0Ch
Out
Yes
80h-FFh
In/Out
No(Out)
Vender unique parameter byte:
’EPSON’, 20h, 20h, 20h
’SCANNER’, 20h, ’xxxxxxxx’, 20h, ’****’,
00h, 00h, 00h, FFh]
Note: ’****’
ROM version
Identify
NOTE: Out: Target → Initiator
In: Initiator → Target
Product Description
Interface
7
EPSON GT-9600
Revision A
1.4 Switch and Lamps
Table 1-5. Extended Message
Extended
Message
Code
Message
length
(Byte)
Message
Direction
Completion
of ATN
01H
5
Synchronous
Data Transfer
Request
In/Out
Yes(out)
4
Write Data
Transfer
Request
03H
Since the basic components of this scanner is same as the GT-9500,
only changed parts are explained here.
R E A D Y L E D
L E D
O P E R A T E L E D
L O C K
U N L O C K
In/Out
E R R O R
Yes(out)
O P T IO N
T E R M IN A T O R
S W
S C S I
ID
O N
E R R O R
R E A D Y
O P E R A T E
R E S E T
O P E R A T E
O F F
NOTE: Out: Target → Initiator
In: Initiator → Target
S C S I ID
T e r m in a to r S e ttin g
S w itc h
S C S I ID S w itc h
B a c k
R E S E T S w itc h
O P E R A T E S w itc h
F ro n t
Figure 1-2. Switch and LED Lamps
1.4.1 Switch
SCSI ID rotary switch:
0-7: SCSI-ID (factory setting 2)
*: The carriage moves to carriage lock position when power is turned
on.
Other:Reserved
Product Description
Switch and Lamps
8
EPSON GT-9600
Revision A
1.4.2 Error
1.6 Control Code
1.4.2.1 Cause and Remedy when errors happen
Since the basic components of this scanner is same as the GT-9500,
only newly added or changed codes are listed here.
Fatal Errors
[Remedy]
1.6.1 Control Code
Remove the causes and turn back on the power.
Send ESC @ code.
Table 1-6. Newly Added Codes
Classification
Send Bus Device Reset Message of SCSI.
Image Processing
Assert RST signal of SCSI.
Support, other
Function
Code
Download color correction
ESC m d1...d9
Set Threshold
ESC t i
Set Film Type
ESC N i
1.5 Command Specification
1.6.2 Function of Control Codes
Refer to the Service Manual of GT-9500.
1.6.2.1 Resolution Setting
By this command, the resolution can be set from 50 dpi to 400dpi.
1.6.2.2 Download color correction
By this command, color correction can be set.
1.6.2.3 Set Threshold
Controls the threshold values
1.6.2.4 Set Film Type
Sets the color balance when reading the target by using TPU.
Product Description
Command Specification
9
EPSON GT-9600
Revision A
1.7 Main Components
† B077 Main Board: Main Control Board
† B077 ISN Board: Sensor Circuit Board
† B035 PSB Board: Power Supply Board
† Scanner Head (Carriage Assembly)
† Carriage Mechanism
† Housing
† Document Cover
Since the basic components of this scanner is same as the GT-9500,
only changed parts are explained here.
1.7.1 B077 Main Board
The main control circuit, B077 Main Board controls various parts by 16bit CPU M8S/2350 Clock Frequency 20 MHz. Also, gate array and
memory for image processing and motor drive circuit for moving the
scanner head are also mounted on this board.
1.7.2 B077 ISN Board
This board converts the signal(Analog signal) read by Color CCD
sensor into the digital and sends it to the Main Board.
Product Description
Main Components
10
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OPERATING PRINCIPLES
EPSON GT-9600
Revision A
2.1 Control Circuit
Table 2-1. Functions of Major Elements
Since the basic component of GT-9600 is same as GT-9500, only
particular items exclusively for GT-9600 are explained here.
Elements
Location
Function
IC5
This CPU controls this scanner
and is driven by clock frequency
20 MHz. Also, CPU control light
source and timing for motor
drive. EEPROM and EPROM are
connected to CPU.
MERCURY GA
IC12
This gate array has following
functions.
• Shading Correction
• Gamma Correction
• CCD Sensor Control
• A/D Convertor Control
• Color Correction
• Zoom
• Set Digital Half -Toning
• AAS (Auto area
segmentation)
• CPU Support
Memory Control
Light quantity Control
• Generates Power On, Reset
signals
• Generates Clock signal
Six 1Mbit SRAM and two
128Mbit DRAM are connected to
this gate array.
A64154FP
IC6
SCSI Controller
A3956SLB
IC26, 27
2.1.1 Overview of Control Circuit
H8S/2350 CPU
B077 Main Control Circuit in this scanner uses “16-bit one chip CPU
H8S/2350” as CPU by clock frequency 20Mhz.
B 0 7 7 IS N B o a rd
( C o lo r C C D , A m p .,A /D
In v e rto r fo r
lig h t s o u r c e
L ig h t S o u r c e
C o n tro l
H P S e n s o r
C P U
H 8 S /2 3 5 0
(IC 5 )
C R
M o to r
S C S
C o n
M 6 4
(IC 2
I
tr o lle r
1 5 4 F P
1 )
S C S I
Im a g e D a ta
C o n tro l
G a te A rra y
M E R C U R Y
(IC 1 2 )
B u s L in e
M o to r C o n tr o lle r
A 3 9 5 6 S L B X 2
(IC 2 6 , 2 7 )
C C D
C o n v e rto r)
1 M b it
S R A M
(IC 1 5 , 1 6 ,
1 9 , 2 0 , 2 2 , 2 3 )
1 M b it
D R A M
(IC 8 , 1 8 )
1 M b it
P R O M
(IC 6 )
2 5 6 K b it
S R A M
(IC 7 )
Carriage Motor Driver
O p tio n
C o n n e c to r
Figure 2-1. Block Diagram of Control Circuit
Operating Principles
Control Circuit
12
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DISASSEMBLY AND ASSEMBLY
EPSON GT-9600
Revision A
3.1 Disassembly and Assembly
3.1.2 B035 Power Supply Board Removal
This section explains disassembly procedure of GT-9600. Since the
components of GT-9500 and GT-9600 are basically same, items only
for GT-9600 are explained here.
3.1.1 Bottom Plate Removal
1. Remove “Bottom Plate”. (See “Bottom Plate Removal” on page -14)
2. Disconnect harness from the connectors on the B035 power supply
board.
3. Remove 5 screws (CBB, 3x12) securing B035 power supply board
to “Housing, Lower”.
1. Remove 17 screws(CBB, 3x12) and 2 screws(CBS, 3x6) securing
“Bottom Plate” to “Housing, Lower”.
4. Remove B035 power supply board from “Housing, Lower”.
2. Remove “Bottom Plate” from “Housing, Lower”.
Power Supply
Cable
CBB(3x12)
CBB (3x12)
CBS
(3x6)
Harness to
B077Main Board
Housing Lower
Harness to the
LED Board
Figure 3-2. B035 Power Supply Board Removal
CBB(3x12)
Figure 3-1. Bottom Plate Removal
Disassembly and Assembly
Disassembly and Assembly
14
EPSON GT-9600
Revision A
3.1.3 B077 MAIN Board Removal
1. Remove Bottom plate. ( See “Bottom Plate Removal” on page -14)
CBS(M3x6)
2. Remove one screw(CBB, 3x12) securing FFC earth plate to
“Housing, Lower”, and remove FFC earth plate.
3. Remove harness from the connectors(CN1, CN2, CN3 and CN4) on
the B077 Main Board.
B077Main Board
4. Remove 2 screws(CBS, M 3x6) securing “B077 Main Board” to
“Shield Plate, Rear”.
5. Remove “B077 Main Board”.
6. Remove 4 screws (CP, M2.5 X 8) securing “Interface Cover” and
“B077 Main Board”.
CBB
(3x12)
FFC Earth
Plate
7. Remove “Interface Cover” from B077 Main Board.
Figure 3-3. B077Main Board Removal
CP(M2.5 x 8)
Figure 3-4. Interface Cover Removal
Disassembly and Assembly
Disassembly and Assembly
15
EPSON GT-9600
Revision A
3.1.4 CR Motor Removal
5. Remove carriage assembly. (Refer to Service Manual of GT-9500)
1. Remove “Housing, Upper”. (Refer to Service Manual of GT-9500)
2. Remove Bottom plate. (See “Bottom Plate Removal” on page -14)
6. Remove 3 screws(CBB, 3x12) securing “Center Rail” to “Housing,
Lower”, and one screw (CBS, M3x6) securing “Center Rail” to “CR
Motor Frame”.
3. Remove B077 Main Board. (See “B077 MAIN Board Removal” on
page -15)
7. Remove 2 screws(CBS, M3x6) securing “Earth Plate, Front” and
“Frame, Front”, and remove “Center Rail”.
4. Remove 5 screws(CBS, M3x6) securing “Center Rail” and “Shield
Board” from the back of scanner. Also, remove one screw(CB, 3x6)
securing “CR Motor Assembly”, earth plate, and motor from the
back of scanner.
Housing, Lower
Earth
Plate,
Front
Center Rail
CB(3x6)
Frame,
Front
CBS(M3x6)
CBB(3x12)
CBS(M3x6)
Figure 3-6. Center Rail Removal
Figure 3-5. Screws at the Circuit Board Side Removal
Disassembly and Assembly
Disassembly and Assembly
16
EPSON GT-9600
Revision A
8. Remove one screw(CBB, 3x12) securing the motor, and remove the
motor.
3.1.5 Lamp Assembly Removal
1. Remove carriage assembly. (Refer to Service Manual of GT-9500)
9. Loosen a screw(CBS, M3x6) securing the “Tension Lever
Assembly” to “Motor Frame”, move “Lever Assembly, Tension” to
the arrowed direction, releasing the tension of the timing belt of CR
motor. Then, remove “Timing Belt B”.
10. Remove 3 “Shaft, Damper, CR” and remove “CR Motor” from “Motor
Frame”.
CBS(M3x6)
CBB(3x12)
2. Remove 2 screws(CB, M3x6) securing “Cover, Rear, Carriage” to
“Carriage Assembly”, and remove “Cover, Rear, Carriage”.
3. Remove 3 screws (CB, M 3x6) securing “Cover, Carriage” to
“Carriage Assembly”, and remove “Cover, Carriage”.
One screw(CB, M3x8) under “Cover,
Rear, Carriage”.
CR Motor Assembly
Figure 3-7. CR Motor Assembly Removal
CB(M3x6)
Figure 3-8. Carriage Cover Removal
Disassembly and Assembly
Disassembly and Assembly
17
EPSON GT-9600
Revision A
4. Remove 2 screws(CB, 3x6) securing “Invertor Board” to “Carriage
Assembly”. Lift up “Invertor Board” and remove the harness of
“Lamp Assembly” from the connector on the “Invertor Board”.
5. Remove “Lamp Assembly”.
CB(3x6)
Lamp Assembly
Figure 3-9. Lamp Assembly Removal
Disassembly and Assembly
Disassembly and Assembly
18
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ADJUSTMENT
EPSON GT-9600
Revision A
4.1 Adjustment
Origin Adjustment required for GT-9500 is not necessary for GT-9600.
Adjustment
Adjustment
20
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TROUBLESHOOTING
EPSON GT-9600
Revision A
Refer to Service Manual of GT-9500.
Troubleshooting
22
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MAINTENANCE
EPSON GT-9600
Revision A
Refer to Service Manual of GT-9500.
Maintenance
24
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APPENDIX
EPSON GT-9600
Revision A
7.1 Scanner Connection
7.2 Connector
A C IN
O p tio n
S C S I
S C S I
C N 1
C N 7
C N 6
C N 5
Table 7-1. Connector
B 0 3 5
P o w e r S u p p ly
C ir c u it B o a r d
C N 2
This section explains the connectors connected to the circuit boards
and their locations. Table 7-2 and 7-3 show signal name of each
connector and its description. Also, since the basic component of GT9500 and GT-9600 are same, items only for GT-9600 are explained
here.
Board Name
B 0 7 7 M a in C ir c u it B o a r d
C N 3
C N 1
C N 3
C N 4
C N 2
B077 Main Board
In v e rto r
C ir c u it B o a r d
L ig h t S o u r c e
L a m p
L E D B o a rd
B 0 7 7 IS N
(C C D )
B o a rd
S c a n n e r H e a d
C R
M o to r
Connector
Pin Number
Content
CN 1
39
Scanner Head
CN 2
3
HP Sensor
CN 3
12
B077 PSB Power supply
Board
CN 4
4
CR Motor
CN 5
50
SCSI
CN 6
50
SCSI
CN 7
15
Option
H P
S e n s o r
Figure 7-1. Internal Connection
Appendix
Scanner Connection
26
EPSON GT-9600
Revision A
Table 7-2. Connector Pin
Table 7-3. Connector Pin
Pin. No.
Signal Name
I/O
Pin. No.
Signal Name
I/O
1-2
+24
--
+24 VDC
1-12
GND
--
GND
3
LAMP
O
Lamp Control Signal
13
--
--
Not Used
4-5
PGND
---
GND
14-25
GND
---
GND
6
--
O
Not Used
26-33
SD0-7
I/O
SCSI Data Line 0-7
7
GND
O
GND
34
SDP
I/O
Parity Line for SCSI Data
8-9
+12
O
+12 VDC
35-37
GND
--
10
GND
O
GND
38
TERMPWR
I/O
11-12
+5
O
+5VDC
39-40
GND
--
GND
13
SHB
O
Shutter control for CCD blue sensor
41
/ATN
I
Attention Signal of SCSI
14
SHG
O
Shutter control for CCD green sensor
42
GND
--
GND
15
SHR
O
Shutter control for CCD red sensor
43
/BSY
I/O
16
RST
O
Reset
44
/ACK
I
ACKNOWLEDGE signal of ACSI
17
CK1
O
Clock 1
45
/RST
I
RESET signal of ACSI
18
TG
O
CCD Shift Pulse
46
/MSG
O
MESSAGE signal of ACSI
19
ADCK
O
ADC Clock
47
/SEL
I/O
SELECT signal of SCSI
20-21
CDS1-2
O
ADC CDS signal
48
/CD
O
CONTROL DATA signal of SCSI
22
CLP
O
ADC CLP Signal
49
/REQ
O
REQUEST signal of SCSI
23
WR
O
ADC Serial Data Latch Signal
50
/IO
O
INPUT/OUTPUT signal of SCSI
24
SD
O
ADC Serial Data
25
SCK
O
ADC Serial Data Clock
26
GND
---
GND
27-38
AD 0-11
I
Video Data Bit 0-11
39
GND
--
GND
Appendix
Description
Connector
Description
GND
Terminal Power Supply (+5VDC)
BUSY signal of SCSI
27
EPSON GT-9600
Revision A
7.3 Board Component Layout
Figure 7-3. B077 Main Board Component Layout(Soldered Side)
Figure 7-2. B077 Main Board Component Layout
Appendix
Board Component Layout
28
EPSON GT-9600
Revision A
7.4 Exploded Diagram
Following pages show exploded diagram of GT-9600.
† Exploded Diagram 1
† Exploded Diagram 2
† Exploded Diagram 3
Appendix
Exploded Diagram
29
EPSON GT-9600
Revision A
7.5 Circuit Shematics
Following pages show the electric circuits of this scanner.
† B077 Main Board
† B077ISN Board
Appendix
Circuit Shematics
33