EPSON GT-7000
Chapter 2
Operating Principles
Rev. A
16
2.1.3 Power Supply Circuit
Power supply circuit in this scanner generates direct current 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
Note1)
If a part of out is shut down, all the other output are also shut
down.
Note2)
Off time required to recover is maximum 5 minutes.
Specification
Unit Part No.
Fuse
100-120 VAC Range
2027699
2.5 A/125 VAC
220-240 VAC Range
2027700
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 GT-7000 Photo
Страница 1: ...EPSON EPSON EPSON France S A GT 7000 SERVICE MANUAL ...
Страница 2: ...6 59 0 18 RORU PDJH 6FDQQHU EPSON GT 7000 4009736 ...
Страница 9: ... PRODUCTDESCRIPTION ...
Страница 20: ... OPERATINGPRINCIPLES ...
Страница 28: ... TROUBLESHOOTING ...
Страница 34: ... DISASSEMBLYANDASSEMBLY ...
Страница 54: ... ADJUSTMENT ...
Страница 56: ... MAINTENANCE ...
Страница 58: ...EPSON GT 7000 Chapter 6 Maintenance Rev A 51 Figure 6 1 Lubrication Points G 2 6 G 2 6 ...
Страница 59: ... APPENDIX ...
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