P-Board Block Diagram - Panasonic TH-42PE30B Service Manual

15.5. P-Board Block Diagram

Power Supply
P
380V
L451
R451 R454
14 4
!
1
D451
R455
R452
2
R463
#
D452
R462
D454
R458
Q452
C456
Q453
10 9
R459 VCC VC
16 IDET
3 VDET
GND
7
R453
IC451
POWER
FACTOR
CONTROL
!
R406
ERU5TAJ150
15
HOT
COLD
RL401
!
D401
TV ON/OFF
!
RL403
D403
RUSH ON/OFF
!
TO PF2 PF2 P9
RL402
NEUTRAL 1 1
D402
LIVE 4 3
HOT COLD
TH-37PE30B/TH-42PE30B
P-Board Block Diagram
380V
D462
C468
IC551
400Vp D457
SUSTAIN VOLTAGE CONTROL
4
Vin
Q451 Q454
D D
DRV.REG
C466
G G =8.3V
S S
# O.V.P
START
DRIVER
R467
R468 REG
R464
LATCH
T.S.D -
+
O.S.C
-
+
R469
#
R504
POWER START
OUT 8
PROTECT CONTROL
Q455,Q456,Q457 D654
VIN- 6
MAZ30560ML
Q650,Q651
4
OVP
R551
IC552
R552
4
Vin
DRV.REG
=8.3V
Rg2
START
O.V.P
DRIVER
Rg1
REG
LATCH
OCP/FB
T.S.D
-
+
O.S.C
-
+
R556
D552
!
D404
R435 R431
C406
Q406
R436
C423
D413
MAZ32000ML
HOT
COLD
!
C563
C557
R577
HOT COLD
!
T501
D580
10
Vsus(170V)
D570
Drain D567
3 9 12
Rg2
C573
C566
Rg1 7 14
2
Source
6 15
R680
OCP/FB
1
D557
4 17
18
GND
20V
5 D581 D572
2 19
C575
D553 C554 1 20
C569
HOT COLD
R557
D571
D565 C568
R581
!
15V D582
1
C556
2
R591
IC553
3 1
! 3
T502
IC550
12Vs
D568
R563 C559 AVR 18V
1 18
C572
2 17
C564
D660
D563
3 16
C590
Drain
4 15
3
C591
D552
D573 12V
14
C650
C576
13
C570
7 12
1
8 11
R564
9 10
2
Source START CONTROL
D
R569
Q552
D558 Q552
5 D559
GND
G
D554 S
R593
C555
Vda
15V
D566
R558 R582
!
R586 C567
R588
HOT COLD
1
T401
!
2
IC557
8 9
R409 C408 3
7 10
6 11
D406
D409 STB7V
12
IC401
D410
4 13
C414
C416
IPD
3 14
3
D
C410
2 15
1 C
D407
Q405
1
S
D405 2
R408
R407
R412
D408
C412
R432 C409
! R413
C415
R414 R415
1
C413
2
IC402
R416
3
75
C574
D583
D584 R617
R626
D590
Q555
R616 R613
Q557
D595
D585 R623
MAZ30560ML
R602
R614 R627
R603 R625
R552 1
IC558
R604
2
D594
MAZ30560ML
170V LINE
1
3
R555 20V LINE
15V LINE
2 VOLTAGE
VOLTAGE
R605
DOWN DET
DOWN DET
3
Vsus Adj
POWER SOS DET
D586
R606
SOS BLINKING TIMES
LED 5 TIMES
:
15Vs
C571
15V
D574
C577
IC555
Vda
SW REG
+5V
5V(P)
Q554 D582 L554
D661 D581
1 AVR 2
IC554
5V
C581
3
15s,12Vs
12V LINE
1
VOLTAGE DOWN DET
2
R590
3
IC403
Vda Adj
+5V(STB)
R635
STB5V
STB7V
AVR
1 3
5V
1
C417
R420
+
Q404
R422
D412
D411
R421
R426
Q401
R425
R427
R628
Q403
R424
R630
Q558
R428
Q402
R631
C420
R423
KILL SOS CONTROL
TH-37PE30B/TH-42PE30B
P-Board Block Diagram
TH-37PE30B / TH-42PE30B
TO SC2
P2
Vsus
1
Vsus
2
TO SS11
P11
2 Vsus
D592
3 Vsus
D593
P5 TO PA5
7
AUDIO12V
8
AUDIO12V
4
STB_5V
TO D25
P25
1 UNR_12V
UNR_12V
2
5V(P)
5
TO SC23
P23
1
DR15V
2
DR15V
P12
TO SS12
1
Vda
2
DR15V
4
STB PS
TO D27
P27
1 RUSH ON/OFF
2 TV_ON/OFF
3
M_POWER
STB_5V
4
5 KILL_SOS
7 POWER_SOS
8 ALL_OFF