Block Diagram; Power Supply - Panasonic PT-FW300NTU Service Manual

12 Block Diagram

12.1. Power Supply

Power Supply
MAIN
F9101
POWER K4
LINE
D9101
FILTER
THERMOFUSE
SW9101 K5
K2-P.C.Board
K3
K1 K2
K1-P.C.Board
AC IN ~
Power Cord
COLD HOT
Q3
L det
1
Lamp ON/OFF
2
A-P.C.Board
3
A4
PHOTO-
ST1
4
ISOLATORS
Power Control
6
Vla ckeck
7
ST2
5
4 2
Q-Module
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P1
POWER
LINE
RECTIFIER
FACTOR
FILTER
CORRECTION
P2
DC380 V
1
3 Q107
4 15 V
15 V AVR
B1
1
Q9603 Q9614
D D
3
S S
G G
4
STEP-DOWN CHOPPER
B4
B/Q-Module
Q2
Q1
(CONTROLLER)
PT-FW300NTU / PT-FW300NTE / PT-FW300NTEA / PT-FW300U / PT-FW300E / PT-FW300EA / PT-F300NTU / PT-F300NTE / PT-F300NTEA / PT-F300U / PT-F300E / PT-F300EA
HOT COLD
Q206
SWITCHING
TRANSFORMER
Q205
SWITCHING
REGULATOR
IC202
PHOTOISOLATOR
SW
PHOTOISOLATOR
D
D9604
S Q9606 Q9610
G
Q9604
D9605
IGNITER
BLOCK
D
D9606
S Q9607 Q9611
G
15 V
Q9605
D9607
IC9603
HALF BRIDGE
DRIVER
(MASTER)
B3
53
P3
+17 V 6
INTERLOCK
SWITCH
Q207
12
SW
13
STB 3.4 V
2
FAN 14 V
IC201
FAN 14 V 1
+6 V 7
3.4 V 9
8
3.4 V
Q204
PWON 15
15 8 9 7 1 2 13 12 6
Q202 Q203
SW
P-Module
MAIN/
STBY
DIRECT POWER OFF
D
D9608
S
G
Q9608
D9609
1 3
LAMP
B5
D
B6
D9611
1 3
S
G
Q9609
D9612
+
IC9602
Z-P.C.Board
HALF BRIDGE
DRIVER
(SLAVE)
B-Module
A6
STB 17 V
STB 3.3 V
FAN 14 V
6 V
3.3 V
FAN 4-13.5 V
( for )
Exhaust
Fan
A-P.C.Board
A5
Z1