A3 Size Color Flat Bed Scanner GT-30000
Revision A
OPERATING PRINCIPLES
Electrical Circuit Operations
27
PBA-MAIN BOARD
PBA-ISN BOARD
PBA-CONNECT BOARD
This relay board connects the PBA-MAIN board with the PBA-ISN, PBA-
PANEL, PWS-POWER, PBA-LAMP boards and mechanism.
PBA-PANEL BOARD
This board has a power switch (push-lock), start switch and LED indicators
(READY, ERROR).
PWS-POWER BOARD
Since the power supply circuit board PWS-POWER for this scanner meets the
universal specification requirements, it can be used with rated voltage from
100V to 240V AC.
NOTE:
1) Power on current: 25 A (O-Peak) or less. However, maximum
input should be 264 V AC or less.
2) Leakage current: 0.25 mA or less
(110 V AC, 50 Hz, maximum load)
3.5 mA or less
(140 V AC, 60 Hz, maximum load)
3.5 mA or less
(264 V AC, 60 Hz, maximum load)
Table 2-1.
Name
Location
Description
CPU
HD6412352F20
IC1
The CPU that controls this entire operation
of this board and operates at 20 MHz.
Voltage = 5.0V
ASIC
µ
PU65949SI-079-F6
IC2
The image processor that controls the
functions and operating described below:.
Operating frequency
External:
48 MHz
Internal:
120 MHz
(CCD driver assembly)
30 MHz
(other than CCD driver
assembly)
Voltage:
3.3V
Control functions
CCD control
Line correction processing
Buffer memory
Image processing
MB86606
IC3
The SCSI interface processor operates at
40MHz. Voltage = 5.0V.
BH9595FP-Y
IC30/31
Terminator control
Table 2-2.
Name
Location
Description
CCD sensor
µ
PD3728D
IC9
Color CCD line sensor outline:
Effective pixel = 7020 pixels x 3 colors
Bi-D scanning rate =
Max. 10 million pixels/second
Table 2-3.
Name
Location
Description
STK672-080
IC1
Motor drive control
Summary of Contents for GT-30000 Series
Page 9: ...C H A P T E R 1 PRODUCTOUTLINE ...
Page 22: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 29: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 37: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 55: ...C H A P T E R 5 ADJUSTMENTS ...
Page 65: ...C H A P T E R 6 MAINTENANCE ...
Page 67: ...C H A P T E R 7 APPENDIX ...
Page 82: ...Model ES 9000H GT 30000 Board PBA MAIN Rev 1 Sheet 1 3 ...
Page 83: ...Model ES 9000H GT 30000 Board PBA MAIN Rev 1 Sheet 2 3 ...
Page 84: ...Model ES 9000H GT 30000 Board PBA MAIN Rev 1 Sheet 3 3 ...
Page 85: ...Model ES 9000H GT 30000 Board PWS POWER Rev A Sheet 1 1 ...
Page 86: ...Model ES 9000H GT 30000 Board PBA Connect Rev 1 Sheet 1 1 ...