FilmScan 200
Rev. A
2-10
2.3 CONTROL CIRCUIT
The scanner's control circuit is consists of two boards.
2.3.1 Control Circuit Outline
The scanner CPU is an 16-bit, single chip M37720S1AFP, which operates at 14.74 MHz. To simplify the
circuitry, the circuits for correcting the image data signals are collected into ASIC E02A14 and M6415.
Figure 2-14 is a block diagram of the control circuitry.
Scanner
Head
CCD
Lamp
Image
Data
AMP
A/D
Con-
verter
(IC2)
1M PSRAM
(IC5, 6)
GA
E02A14
(IC4)
CCD and
Lamp
Control
1M
ROM
(IC11)
1M
RAM
(IC10)
Motor
Driver
(IC13, 26)
Preview Motor,
Main Scan Motor
CPU
HD6413003
(IC8)
APS Holder
(Option)
M64154
(IC16)
Parallel
I/F
SCSI
Figure 2-14. Control Circuit Block Diagram
Summary of Contents for FILMSCAN 200
Page 1: ...EPSON FILM SCANNER FilmScan 200 SERVICE MANUAL SEIKO EPSON CORPORATION 4007375 ...
Page 5: ...v REVISION SHEET Revision Issued Data Contents Rev A FEBRUARY 28 1997 First issue ...
Page 8: ...EPSON SEIKO EPSON CORPORATION ...
Page 75: ...CHAPTER 4 ADJUSTMENT No adjustment is required in this product ...
Page 85: ...CHAPTER 6 MAINTENENCE 6 1 MAINTENENCE 6 1 6 2 LUBRICATION 6 1 ...
Page 86: ...APPENDIX A 1 CONNECTOR PIN ASSIGNMENTS 1 A 2 EXPLOED DIAGRAM 8 ...
Page 88: ...FilmScan 200 Rev A A 2 Figure A 2 Cable Connection SCSI Model ...
Page 95: ...APPENDIX Rev A A 9 Figure A 4 FilmScan 200 Bi D Model Exploded Diagram 2 2 ...
Page 96: ...FilmScan 200 Rev A A 10 Figure A 5 FilmScan 200 SCSI Model Exploded Diagram 1 2 ...
Page 97: ...APPENDIX Rev A A 11 Figure A 6 FilmScan 200 SCSI Model Exploded Diagram 2 2 ...
Page 98: ...FilmScan 200 Rev A A 12 Figure A 7 APS Holder option Exploded Diagram ...
Page 100: ...FilmScan 200 Rev A 6 2 Shaft 1 G 36 1 G 36 Figure 6 1 Lubrication Points ...