Epson Perfection 610 - Manual (Page 18)

EPSON Perfection 610 Rev. B
Operating Principles Engine Mechanism 18
2.1.3 Power Supply Circuit
Power supply circuit board in this scanner generates direct current necessary
for driving the controller board and scanner engine.
See Table 2-1 and Table 2-2 for the power supply circuit board specifications
and the protection circuits for each output voltage/current, respectively. Figure
2-5 shows the power supply circuit diagram.
Table 2-1. Power Supply Circuit Board Specifications for Each Destination
Table 2-2. Protection Circuits for Output Voltages/Currents
*: Recovers within 5 minutes.
NOTE: If any of the outputs is shut down, all the other outputs are also shut down.
Specification Unit Part No. Fuse
100 -120 VAC Range 2031592 2.5 A / 125 VAC
220 -240 VAC Range 2031593 T2.5AH / 250 VAC
Output
Voltage
Output
Current
Over Current Protection Over Voltage Protection
5 VDC 1.2A • The current is held 1A or less by the
fold-back characteristic.
• Recovers automatically*.
• Shut down.
• To restore, turn the scanner off and
then back on.
• The protection circuit becomes active
when the voltage rises to 5.5 - 7.5
VDC.
12 VDC 0.2A • The current is held 0.5 or less by the
fold-back characteristic of the
generator.
• Recovers automatically*.
• Shut down.
• To restore, turn the scanner power off
and then back on.
• The protection circuit becomes active
when the voltage rises to 14 -17 VDC.
24 VDC 0.7A • Shut down.
• To restore, turn the scanner power off
and then back on.
• Shut down.
• To restore, turn the scanner power off
and then back on.
• The protection circuit becomes active
when the voltage rises to 28 -33 VDC.