44
Slide Scanner Repair Manual Functional Description
SCSI
AOI
Programming
Communications
CSYNC LSYNC SYSCLK
RGB
Data IN
123456789012345678901234
1
2345678901234567890123
2345678901234567890123
2345678901234567890123
4
123456789012345678901234
Filter Wheel Stepper Motor
123456789012345678901234
1
2345678901234567890123
2345678901234567890123
4
123456789012345678901234
I/O
Lines
Ready (Yellow) LED
Transporter Photo-Interrupter
Filter Wheel Photo-Interrupter
Transporter Stepper Motor
Power On (Green) LED
MicroController
UC
Host
Computer
SCSI
Bus
SRAM
SRAM
DRAM
(Buffer)
Secondary
Color Correction
ASIC
Primary
Correction
ASIC
Figure 2-6. Main controller PC board (digital signal processing)
234
- Filter Set Assembly w/Stepper Motor used on original SprintScan 35.
Also used on SprintScan 35 ES up to serial no. B6xxxxxxD.
Notes: • Input
• Output
Timing
To
Sensor (CCD) Board
(HCLKS, VCLKS, RG, SEL0, SEL1)