Epson GT-9000 Service Manual Download

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EPSON GT-9600

Revision A

Appendix

Circuit Shematics

7.5 Circuit Shematics

Following pages show the electric circuits of this scanner.

B077 Main Board

B077ISN Board

Summary of Contents for GT-9000

Page 1: ...EPSON EPSON EPSON France S A SERVICE MANUAL GT 9000 PRODUIT ...

Page 2: ...EPSON GT 9600 Color Imaging Scanner SESC98003 6 59 0 18 ...

Page 3: ...ject 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 CORPORA...

Page 4: ... 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 P...

Page 5: ...ved 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 Symbols Used in This Manual Various symbols are used throughout this manual either to provide additional information on a specific topic or to wa...

Page 6: ...Revision Status Revision Issued Date Description Rev A December 2 1998 First Release ...

Page 7: ... 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 Main Components 10 B077 Main Board 10 B077 ISN Board 10 Operating Principles Control Circuit 12 Overview of Control Circuit 12 Disassembly and Assembly Disassembly and Assembly 14 Bottom Plate Removal 14 B035 Power Supply Board Removal 14 B077 MAIN Board Remov...

Page 8: ... 3 7 5 PRODUCT DESCRIPTION ...

Page 9: ...l ESC I B8 I F SCSI Table 1 1 Optional Items NOTE The number represented by an asterisk varies depending on the country Figure 1 1 Exterior View of GT 9600 1 2 Specifications 1 2 1 General Specifications 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 Pi...

Page 10: ...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 1 2 2 Electrical Specification 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 Power consumption ...

Page 11: ...y Main unit MCBF 100000 cycle 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 2 8 Document Reflective type Documents which has a smooth surface Transparency type With transparency unit Reversal film Negative film 1 2 9 Physical Dimensi...

Page 12: ...to Matically specification ANSI T10 1142 rev 15 Electric Specification Compliant to ANSI X3 131 1994 SCSI 2 Single ended Connector Two 50 pin connectors Half Pitch 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 an...

Page 13: ...ned as follows Table 1 3 Status NOTE R means reserved bit Table 1 4 Message NOTE Out Target Initiator In Initiator Target 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 Message Code Direction Completion of ATN Command Complete 00h In Extended Messages 01h In Out Save Data Pointer 02h In Restore Pointer 03h In Disconnect 04h In Initiator...

Page 14: ...o carriage lock position when power is turned on Other Reserved Extended Message Code Message length Byte Message Direction Completion of ATN 01H 5 Synchronous Data Transfer Request In Out Yes out 03H 4 Write Data Transfer Request In Out Yes out U N L O C K L O C K O N O F F O P T I O N T E R M I N A T O R S W S C S I I D R E S E T O P E R A T E E R R O R R E A D Y O P E R A T E R E A D Y L E D E ...

Page 15: ...s same as the GT 9500 only newly added or changed codes are listed here 1 6 1 Control Code Table 1 6 Newly Added Codes 1 6 2 Function of Control Codes 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 t...

Page 16: ...nents 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 16 bit 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 An...

Page 17: ... 3 7 5 OPERATING PRINCIPLES ...

Page 18: ...o n t r o l C C D C o n t r o l I m a g e D a t a 1 M b i t P R O M I C 6 C R M o t o r O p t i o n C o n n e c t o r G a t e A r r a y M E R C U R Y I C 1 2 B u s L i n e 1 M b i t S R A M I C 1 5 1 6 1 9 2 0 2 2 2 3 1 M b i t D R A M I C 8 1 8 2 5 6 K b i t S R A M I C 7 Elements Location Function H8S 2350 CPU IC5 This CPU controls this scanner and is driven by clock frequency 20 MHz Also CPU co...

Page 19: ... 3 7 5 DISASSEMBLYANDASSEMBLY ...

Page 20: ...om Plate to Housing Lower 2 Remove Bottom Plate from Housing Lower Figure 3 1 Bottom Plate Removal 3 1 2 B035 Power Supply Board 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 4 Remove B035 power supply board from Housing Lower Figu...

Page 21: ...e FFC earth plate 3 Remove harness from the connectors CN1 CN2 CN3 and CN4 on the B077 Main 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 7 Remove Interface Cover from B077 Main Board Figure 3 3 B077Main Board Removal Figure 3 4 Interface Cover Removal CBB 3x12 CBS ...

Page 22: ...scanner Also remove one screw CB 3x6 securing CR Motor Assembly earth plate and motor from the back of scanner Figure 3 5 Screws at the Circuit Board Side Removal 5 Remove carriage assembly Refer to Service Manual of GT 9500 6 Remove 3 screws CBB 3x12 securing Center Rail to Housing Lower and one screw CBS M3x6 securing Center Rail to CR Motor Frame 7 Remove 2 screws CBS M3x6 securing Earth Plate ...

Page 23: ...move Timing Belt B 10 Remove 3 Shaft Damper CR and remove CR Motor from Motor Frame Figure 3 7 CR Motor Assembly Removal 3 1 5 Lamp Assembly Removal 1 Remove carriage assembly Refer to Service Manual of GT 9500 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...

Page 24: ...nd Assembly 18 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 Figure 3 9 Lamp Assembly Removal CB 3x6 Lamp Assembly ...

Page 25: ... 3 7 5 ADJUSTMENT ...

Page 26: ...EPSON GT 9600 Revision A Adjustment Adjustment 20 4 1 Adjustment Origin Adjustment required for GT 9500 is not necessary for GT 9600 ...

Page 27: ... 3 7 5 TROUBLESHOOTING ...

Page 28: ...EPSON GT 9600 Revision A Troubleshooting 22 Refer to Service Manual of GT 9500 ...

Page 29: ... 3 7 5 MAINTENANCE ...

Page 30: ...EPSON GT 9600 Revision A Maintenance 24 Refer to Service Manual of GT 9500 ...

Page 31: ... 3 7 5 APPENDIX ...

Page 32: ...xplained here Table 7 1 Connector C N 1 C N 2 C N 3 C N 4 C N 5 C N 6 C N 7 C N 1 C N 2 C N 3 B 0 7 7 M a i n C i r c u i t B o a r d A C I N B 0 3 5 P o w e r S u p p l y C i r c u i t B o a r d O p t i o n S C S I S C S I L E D B o a r d S c a n n e r H e a d I n v e r t o r C i r c u i t B o a r d L i g h t S o u r c e L a m p B 0 7 7 I S N C C D B o a r d C R M o t o r H P S e n s o r Board Na...

Page 33: ...2 CLP O ADC CLP Signal 23 WR O ADC Serial Data Latch Signal 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 Pin No Signal Name I O Description 1 12 GND GND 13 Not Used 14 25 GND GND 26 33 SD0 7 I O SCSI Data Line 0 7 34 SDP I O Parity Line for SCSI Data 35 37 GND GND 38 TERMPWR I O Terminal Power Supply 5VDC 39 40 GND GND 41 ATN I At...

Page 34: ...EPSON GT 9600 Revision A Appendix Board Component Layout 28 7 3 Board Component Layout Figure 7 2 B077 Main Board Component Layout Figure 7 3 B077 Main Board Component Layout Soldered Side ...

Page 35: ...EPSON GT 9600 Revision A Appendix Exploded Diagram 29 7 4 Exploded Diagram Following pages show exploded diagram of GT 9600 Exploded Diagram 1 Exploded Diagram 2 Exploded Diagram 3 ...

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Page 39: ...EPSON GT 9600 Revision A Appendix Circuit Shematics 33 7 5 Circuit Shematics Following pages show the electric circuits of this scanner B077 Main Board B077ISN Board ...

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