Block Diagram; Power Supply - Panasonic PT-D3500U Service Manual

14 Block Diagram

14.1. Power Supply

Power Supply
THERMOFUSE
PA2
SW
FUSE
F101
LINE
FILTER
Power Cord
PA-Module
VOLTAGE
DETECT
PB-Module
4 1
PA1 PB1
2 2
Power FACTOR
RECTIFIER
CORRECTION
1 1
SMOOTHING
SWITCHING
TRANSFORMER
SWITCHING
REGULATOR
PHOTO-
SMOOTHING
ISOLATOR
/REGULATING
PHOTO-
ISOLATOR
PHOTO-
ISOLATOR
HOT COLD
PB3
DC380V
1
CN1
2
Low Voltage
Power Supply
CN
2A
18V
From CN
A-P.C.Board A5 2B
Ballast Module
PB4
1
2
FAIL SAFE SW
(BACK COVER)
PB5
1
14V
3
STB 5V
5
2.5V
To
7
A-P.C.Board A43
3.3V
9
5V
11 11
12V
13
VOLTAGE DETECT
14
MAIN/STB
PB6
1
2.5V
2
4
To
3.3V
FM-Module FM2
6
5V
8
12V
53
Q1 L2
Igniter
Transformer
D3 C9
R10
PWM Current Voltage
Control Detector Detector
5V CPU
D/A
Converter
Fixed Power
Control
Ignition Pulse Voltage
typ.15kVo-p
Lamp Voltage
Vla:60~130V
Output Power
300W/240W/160W
PT-D3500U / PT-D3500E
Lamp+
Lamp-