CHAPTER 3 THEORY OF OPERATION
3-20
1.6
Power Supply
1.6.1 Low-voltage power supply
The power supply uses a switching regulation system to generate the regulated DC power
(+5V and +24V), which are converted from the AC line.
The regulated output and the production code of each power supply are listed below;
Regulated Output
Production Code
+5V / 1.6 A
+24V / 2.15 A
100V: MPW1555
200V: MPW1455
For the circuit diagram of the low-voltage power supply PCB, see
Appendix 20 or 21
.
Heater
Circuit
Thermal
Fuse
Lightning
Surge
Absorber
Feedback
Line
Filter
Fuse
Rectifier
Oscillator
24V
Regulation
Circuit
24V
5V
Lamp
(Heater)
(Engin Circuit)
Fuse
5V
Regulation
Circuit
Fig. 3-25
Summary of Contents for HL-1470N
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Page 61: ...CHAPTER 3 THEORY OF OPERATION 3 11 Two 32 Mbits ROMs x 16 bit are fitted Fig 3 11 HL 1470N ...
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Page 223: ...Appendix 15 Engine PCB Circuit Diagram CODE LJ88009001 B512136 CIR A XX NAME ...
Page 224: ...Appendix 16 Network Board Circuit Diagram HL 1470N CODE LJ8107000 B512058CIR A 29 NAME ...
Page 227: ...CODE NAME Appendix 19 High voltage Power Supply PCB Circuit Diagram ZLe MPH3212 ...
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