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Slide Scanner Repair Manual Functional Description
2. Functional Description
Contents
Scanner Process Overview ............................................................................... 33
Scanner Transporter.......................................................................................... 34
Scanner Optics................................................................................................... 37
Scanner Electronics ........................................................................................... 38
Power Supply PC Board.................................................................................... 38
Main Controller PC Board Power Distribution .................................................... 40
AC Inverter PC Board........................................................................................ 41
Image Sensor PC Board.................................................................................... 42
CCD Image Sensor......................................................................................... 42
Associated Analog Signal Processing Support Circuitry.................................. 43
Main Controller PC Board.................................................................................. 43
Analog Signal Processing................................................................................ 45
Digital Signal Processing ................................................................................. 45
Primary Correction ASIC................................................................................. 45
DRAM Controller (Buffer)................................................................................ 46
Secondary Color Correction ASIC .................................................................. 47
Color Modes ................................................................................................... 48
Scanner Control .............................................................................................. 48
CCD Driver...................................................................................................... 48
Transporter Driver........................................................................................... 48
LED Indicator Driver........................................................................................ 48
Filter Wheel Driver .......................................................................................... 49
System Interface............................................................................................. 49
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