EPSON Perfection 3200 Photo
Revision A
Operating Principles
Power Supply Circuit
19
2.2 Power Supply Circuit
Power supply circuit in this scanner generates direct current DC power
necessary for driving the controller board and scanner engine. Table below
shows each power supply circuit for different destinations.
Table 2-1. Power Supply Circuit Board for Destination
Figure 2-5 shows diagram of power supply circuit.
Output from the power supply circuit is performed by closing or opening the No.
4 pin of CN102 connector. When opening, as it is shown in the Table below,
each output voltage becomes active. Also, each output voltage has over
current protection and over voltage protection circuit.
Table 2-2. Output and Protection Function
NOTE:
1. If a part of output is shut down, all the other output are also shut
down.
2. Off time required to recover is maximum 5 minutes.
Specification
Unit Part No.
Fuse
100-120 VAC Range
2027705
2.5 A/125 VAC
220-240 VAC Range
2027704
T2.5AH/250 VAC
Output
Voltage
Output
Current
Over Current Protection
(Current value to activate)
Over voltage Protection
(Voltage value to activate)
5 VDC
1.2A
Fold-back characteristic.
Automatic Recovery.
(Less than 1A)
Shut down. Turn off the
power and back on to
recover. (5.5 -7.5 VDC)
12 VDC
0.2A
Constant current limiting.
Automatic Recovery.
(less than 0.5 A)
Shut down. Turn off the
power and back on to
recover. (14 -17 VDC)
24 VDC
0.7A
Shut down. Turn off the
power and back on to
recover.
Shut down. Turn off the
power and back on to
recover. (28 -33 VDC)
Содержание Perfection 3200 Photo
Страница 1: ...EPSON Perfection3200Photo Color Image Scanner SESC02 003 SERVICE MANUAL ...
Страница 5: ...Revision Status Revision Issued Date Description A November 18 2002 First Release ...
Страница 8: ...C H A P T E R 1 PRODUCT DESCRIPTION ...
Страница 21: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 29: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 36: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 58: ...C H A P T E R 5 ADJUSTMENT ...
Страница 61: ...C H A P T E R 6 MAINTENANCE ...
Страница 64: ...C H A P T E R 7 APPENDIX ...
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