Panasonic PT-LB20NTU

11 Block Diagram
11.1. Power Supply
Power Supply
3
4
1
B1
B4
Q2
STEP-DOWN CHOPPER
Power Cord
AC IN
K1
K2
F9101
Z101
TH101
1
4
P3
5
7
8
12
PHOTOISOLATOR
15 V AVR
HALF BRIDGE
DRIVER
(SLAVE)
SWITCHING
TRANSFORMER
RECTIFIER
SWITCHING
REGULATOR
PHOTOISOLATOR
POWER
FACTOR
CORRECTION
LAMP
D9608
Q9608
D9609
Q9610
Q204
Q205
Q9611
Q9606
Q107
Q9607
IC9602IC9603
D9611
Q9609
D9612
MAIN/STB
3.4 V
DC380 V
THERMOFUSE
Power Control
ST1
Lamp ON/OFF
L det
3.4 V
+6 V
FAN 14 V
STB 3.4 V
+17 V
11
3
4
1
P2
P1
HALF BRIDGE
DRIVER
(MASTER)
PHOTO-
ISOLATORS
D9604
Q9604
Q9614Q9603
D9605
D9606
D
S
D
S
G
Q9605
D9607
B3
B5
B6
Q1
D
S
G
3
5
1
4
2
Q3
LINE
FILTER
LINE
FILTERS
15 V
15 V
3
IGNITER
BLOCK
MC202
INTERLOCK
SWITCH
G
D
S
G
D
S
D
S
G
G
IC102
A-P.C.Board
A6
K-P.C.Board
B-Module
B/Q-Module
P-Module
Q-Module
(CONTROLLER)
HOT COLD
HOT COLD
A-P.C.Board
A4
PT-LB20NTU / PT-LB20NTE / PT-LB20NTEA / PT-LB20U / PT-LB20E / PT-LB20EA / PT-LB20SU / PT-LB20SE / PT-LB20SEA / PT-LB20VU / PT-LB20VE / PT-LB20VEA
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