Chapter 2
2-47
2.4.5 Power Supply
2.4.5.1 Power supply block diagram
0013-4333
F-2-35
The power supply converts AC voltages ranging from 100 V to 240 V from the AC inlet to DC voltages for driving the ICs, motor, and others.
The voltage generator circuits include the +26 V generation circuit for driving motors, fans, and sensors and a +21.5 V generator circuit for driving sensors, heads,
logic circuits, and others.
When the power is turned off, +26 V and +21.5 V are reduced to about 12 V and 9 V respectively (power save mode).
Power ON/OFF operation is controlled by the main controller PCB.
Operation panel
Transformer
DC power supply
control circuit
+21.5V
generation circuit
+26V
generation circuit
POWER ON
Rectifying circuit
Noize filter circuit
AC inlet
100V to 240V
Power supply
Main controller PCB
+5V/+3.3V
generation circuit
Содержание image Prograf iPF780 Series
Страница 1: ...Mar 27 2014 Service Manual iPF780 760 750 series iPF785...
Страница 9: ...Chapter 1 PRODUCT DESCRIPTION...
Страница 57: ...Chapter 2 TECHNICAL REFERENCE...
Страница 117: ...Chapter 3 INSTALLATION...
Страница 125: ...Chapter 4 DISASSEMBLY REASSEMBLY...
Страница 133: ...Chapter 4 4 7 3 Remove one screw 1 release two hooks 2 and then remove the output guide middle left 3 F 4 11 1 3 2 2...
Страница 175: ...Chapter 4 4 49 2 Shaft Cleaner 1 F 4 97 1 1...
Страница 176: ...Chapter 4 4 50 3 Upper Cover Hinge Catch 1 Roll Cover Slide Guide 2 F 4 98 2 1...
Страница 179: ...Chapter 5 MAINTENANCE...
Страница 186: ...Chapter 6 TROUBLESHOOTING...
Страница 212: ...Chapter 7 SERVICE MODE...
Страница 267: ...Mar 19 2014 PARTS CATALOG iPF786 785 781 780 765 760 755 750...
Страница 275: ...STAND UNIT ST 33 STAND UNIT ST 34 100V Q51 1767 000 230 KOR Q51 1768 000 Q51 2560 000 Q51 2800 000...
Страница 299: ...2 23 FIGURE 09 CUTTER UNIT J12 J7 J11 J31 J34 J33 A A 10 8 1 502 7 5 13 13 9 11 8 501 6 12 2 3 4 14 14 14 15 503...
Страница 301: ...2 25 FIGURE 10 PLATEN GUIDE UNIT 1 3 6 2 8 4 5 10 10 10 9 9 11...
Страница 326: ......