P-Board Block Diagram - Panasonic TH-42PWD8WK Service Manual

15.3. P-Board Block Diagram

P
POWER SUPPLY
TO
AC CORD
P9
F402
L404
LIVE 4
F401
NEWTRAL
1
Q423
Q435
R455,R474
R479,R481
R483,R488
Q430,Q432
TH-37/42PWD8 SERIES
P-Board Block Diagram
L405
D401
D404
D462
R903-R906
R928-R931
Q424,Q434.Q436
IC407
POWER SUPPLY
Q433,Q441
Q415
Q414
10
T401
Q401
Q420
L403
R443
PFC
IC402
COMPARATOR(PFC)
1
3
1
3
RL403
RL402
MAIN ON/OFF
RUSH ON/OFF
9
Q431
6
Q439
3
1
2
D444
3 2 1
VIN Isen EXT
CE/SS CLK FB VSS
4
4 5 7 8
3
Q440
4
Q438
3
4
3
HOT
D417
D419
D420
9 8 4 3 2
Q404
Q406
L402
14 16
D415
8 7 6 5
VCC
IC406
MOS
CURR
DRIVE DET
POWER
CURR FACTOR
COMP
CONTROL
1 2 3 4
Q422
Q407
HOT
Q418 Q421
PFC DET
5
4
Q417
Q4O3
5
4
IC411
COMPARATOR(AC IN)
T410
15
PR501
16
18
D511 Q511 Q512
D509
14
13
D510
10
IC504
1
IC408
ERROR DET
2
2 REG 1
1
IC412
2
1
IC409
2
COLD
PR401
395V
PR402
C405
IC52
BUFF
COLD
1 4
IC404
2 3
1 4
IC403
2 3
4 1
IC401
3 2
D567
3
IC502
1
RESET
D555
Q535
STB5V DET
Q501
INV.
Q502 Q503
INV.
Q565
Q567
65