P-Board Block Diagram - Panasonic TH-42PM50U Service Manual

13.3. P-Board Block Diagram

P POWER SUPPLY
TO
AC CORD
P9
F402
L404 L405
LIVE 4
F401
NEWTRAL 1
D401
- +
D404
- +
D462
R903-R906
Q423
R928-R931
Q424,Q434.Q436
Q435
DC-DC CONVERTER
R455,R474
R479,R481
R483,R488
Q433,Q441
Q430,Q432
Q415
Q414
TH-42PM50U
P-Board Block Diagram
D417
350V
PR401
D419
D420
10 9 8 4 3 2
T401
Q404
Q406
L402
14 16
D415
Q401
8 7 6 5
VCC
IC406
MOS
CURR
DRIVE DET
POWER
CURR FACTOR
COMP
CONTROL
L403
1 2 3 4
Q420 Q422
Q407
HOT
Q418 Q421
R443
PFC
IC402
COMPARATOR
1 5
3 4
Q417
IC411
COMPARATOR
Q403
1 5
RL403
RL402
3 4
T410
15
9 PR501
16
18
D511 Q511
Q512
Q431 D509
IC407
6 14
Q439
13
3
D510
1
2 10
3 2 1 D444
IC408
IC504
4 5 7 8 4 1
PHOTO STB 5V
COUPLER
3 2
2 REG 1
Q440
IC412
4 1
Q438
PHOTO
COUPLER
3 2
IC409
4 1
PHOTO
COUPLER
3 2
HOT
COLD
HOT COLD
D539
13
14
T404 D531
1
Q412 9
3
2
Q408
4
15
D534
7
8
11
6
PR402 Q413
5
Q409
2 1
10 9 6 5
C405 T402
2 3 4
T407
6 5 4 D568
D530
16 15 13 12
IC520
Ex.I/O
2 4 6
Q516 Q510
COLD
1 4
IC404
Q520,Q517
PHOTO
2 3
COUPLER
IC509
1 4
IC403 Q507
Q506
AC-DC CONVERTER
PHOTO
2 3
COUPLER
6 T601
9
8 7 5
VCC GD ZCD
INV VFF CB 5 4 3
4 1
IC401
1 3 4
PHOTO
COUPLER
3 2
IC505 PHOTO
R671
COUPLER 4 1
Csus
3 2
IC501
POWER MCA
D567
VDD Q561
1 P30 24
2 VSS P31 23 Q559
3
IC502
3 XIN P00 22
X501
4NHz
1
4 XOUT P01 21
RESET
P02
5 20
6 RESET P03 19
D555
Q535
7 P21 P10 18
P11
8 P20 17
Q501
9 P12 16
D5
Q550
10 D4 P13 15
Q551
11 D3 D0 14
Q502 Q503
12 D1 13
D2
Q518
Q560
Q565
Q564
Q567
Q562
59
Q527
DC75V
D532
D542 D544 D545
2 1
D536 3
IC512
AVR DC75V
1
R665
2
Vda
3
DC15V
D535
DC12V PR509
D521
1
R661
Q509
2
Vlow
Q541
3
Q508
PR601
IC506
Q505
SHUNT REGULATOR
3 1
REG
R628
Vsus
Q530 Q536
Q525
Q552
Q537
Q538
Q557
IC507 PR503
Q544
Q554
1 5
REG
Q553
REGULATOR
Q519
Q558
IC503
2 1
STB 14V
TH-42PM50U
P-Board Block Diagram
TH-42PM50U
TO
P12
SS12
1
Vda
+15V
2
5 STB12V
4 STB_PS
TO
P23
SC23
1 +15V
2 +15V
TO
P11
SS11
2
Vsus
3 Vsus
TO
P2
SC2
1
Vsus
2 Vsus
TO
P5
PB5
1 +12V
2 +12V
4 +15V
6 +12Vs
7 +12Vs
8 +12Vs
NO
P30
USE
1
+15V
4 +5V
5 FAN CONT
3 FAN SOS
TO
P25
D25
1 12V
2 12V
3 FAN CONT
7 +5V
9 +5V
10 STB5V
13 F STBY ON
14 FAN SOS
15 ECO_ON
PANEL MAIN ON
17
16 PS SOS
18 ALL OFF
TO
P10
PA10
1 F STB 14V
2 F STB 14V
3
F STB 14V