Block Diagram; Power Supply - Panasonic PT-D5600U Service Manual

14 Block Diagram

14.1. Power Supply

Power Supply
THERMOFUSE
P1
SW
FUSE
F102 LINE
FILTER
Power Cord
VOLTAGE
DETECT
Power Module
1 2
FUSE
Power FACTOR
CORRECTION
F103
RECTIFIER
FUSE
Power FACTOR
CORRECTION
F104
SMOOTHING
SWITCHING
TRANSFORMER
SMOOTHING
SWITCHING
REGULATOR
PHOTO-
SMOOTHING
ISOLATOR
/REGULATING
PHOTO-
ISOLATOR
PHOTO-
ISOLATOR
HOT COLD
CN1
Low Voltage
Power Supply
18V
CN
2A
From
CN
A-P.C.Board A5
2B
P2
DC380V
1
2
P3
1
CN1
2
CN
From
2A
A-P.C.Board A6
P5
CN
1
2B
STB 14V
(FAN)
2
To
A-P.C.Board A42
5
STB 5V
(CPU)
P4
2
1
FAIL SAFE SW
(BACK COVER)
P6
1
2.5V
3
3.3V
5
5V
To
7
A-P.C.Board A43
VOLTAGE DETECT
8
MAIN/STB
9
12V
P7
1
2.5V
2
4 To
3.3V
FM- Module FM2
6
5V
8
12V
53
PT-D5600U / PT-D5600E / PT-D5600UL / PT-D5600EL / PT-DW5000U / PT-DW5000E / PT-DW5000UL / PT-DW5000EL
Q1 L2
Igniter
Transformer
D3 C9
R10
5V
PWM Current Voltage
Control Detector Detector
CPU
D/A
Fixed Power Converter
Control
Ignition Pulse Voltage
typ.15kVo-p
Lamp Voltage
Ballast-1 Module
Vla:60~130V
Output Power
300W/240W/160W
Ballast-2 Module
*See Ballast-1 Module for the circuit.
Lamp+
Lamp-