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P
Power Supply
380V
L451
R454
R451
14
4
!
1
D451
R455
R452
2
D452
D454
R458
C456
10
R459
VCC
16
IDET
3
VDET
R453
IC451
POWER
FACTOR
CONTROL
!
R406
ERU5TAJ150
15
RL401
!
D401
TV ON/OFF
!
RL403
D403
RUSH ON/OFF
!
PF2
P9
TO PF2
RL402
NEUTRAL
1
1
D402
LIVE
4
3
HOT
COLD
TH-37PA30E/TH-42PA30E
P-Board Block Diagram
D462
380V
C468
D457
IC551
400Vp
SUSTAIN VOLTAGE CONTROL
4
Vin
Q454
Q451
D
D
R463
#
C466
G
G
S
S
#
START
O.V.P
R467
R462
R468
REG
R464
T.S.D
Q452
Q453
R469
#
R504
9
POWER START
VC
8
OUT
PROTECT CONTROL
Q455,Q456,Q457
6
VIN-
Q650,Q651
4
OVP
GND
7
R551
IC552
R552
4
Vin
DRV.REG
=8.3V
START
O.V.P
DRIVER
REG
LATCH
T.S.D
O.S.C
-
+
R556
D552
!
D404
C406
HOT
COLD
R436
!
C563
C557
R577
HOT
!
T501
D580
10
DRV.REG
Drain
3
9
=8.3V
Rg2
DRIVER
Rg1
7
2
LATCH
Source
6
R680
OCP/FB
1
-
+
D557
O.S.C
4
-
+
GND
5
D581
2
D553
C554
1
HOT
R557
D565
!
15V
D582
D654
C556
MAZ30560ML
3
1
!
T502
IC550
R563
C559
AVR 18V
1
2
D563
3
Drain
4
3
D552
Rg2
C650
Rg1
7
OCP/FB
1
-
8
+
R564
9
2
Source
R569
D558
D559
5
GND
D554
C555
15V
D566
R558
!
HOT
!
T401
8
C408
R409
7
R435
R431
6
D406
IC401
4
IPD
3
3
D
C410
2
1
C
D407
Q405
1
S
D405
2
Q406
R408
R407
D408
C412
C409
R432
!
C423
D413
MAZ32000ML
HOT
COLD
C413
IC402
COLD
Vsus(170V)
D567
D570
12
C573
C574
C566
14
15
D583
17
D584
18
20V
D572
R616
R613
19
D585
C575
R602
MAZ30560ML
20
C569
R603
R552
1
COLD
IC558
R604
2
D571
170V LINE
1
3
C568
R555
15V LINE
2
R581
VOLTAGE
R605
1
DOWN DET
3
Vsus Adj
2
R591
POWER SOS DET
IC553
D586
R606
3
SOS BLINKING TIMES
:
12Vs
D568
18
C572
17
C564
D660
15Vs
16
C590
15
C591
D573
12V
14
C576
13
C571
C570
15V
12
D574
C577
11
Vda
10
START CONTROL
D
Q552
Q554
D661
D581
D582
Q552
IC554
G
S
R593
Vda
R582
15s,12Vs
R586
C567
12V LINE
1
VOLTAGE DOWN DET
R588
2
COLD
1
R590
3
Vda Adj
2
9
IC557
R635
3
10
STB7V
11
D409
STB7V
12
D410
13
C414
C416
14
C417
R420
15
+
Q404
R422
D412
D411
R412
R421
R413
C415
R414
R415
1
Q401
R425
2
R416
R427
3
Q403
R424
R428
Q402
C420
R423
TO SC2
P2
Vsus
1
Vsus
2
TO SS11
P11
2
Vsus
D592
3
Vsus
D593
R617
D590
R626
Q555
Q557
D595
R623
R614
R627
R625
D594
MAZ30560ML
20V LINE
VOLTAGE
DOWN DET
LED 5 TIMES
P5
TO PA5
7
AUDIO12V
8
AUDIO12V
4
STB_5V
TO D25
P25
IC555
UNR_12V
1
UNR_12V
SW REG
2
+5V
5V(P)
5
5V(P)
L554
1
AVR
2
5V
C581
3
TO SC23
P23
1
DR15V
2
DR15V
P12
TO SS12
1
IC403
Vda
2
DR15V
+5V(STB)
4
STB PS
STB5V
AVR
1
3
5V
1
TO D27
P27
1
RUSH ON/OFF
2
TV_ON/OFF
3
M_POWER
4
STB_5V
R426
5
KILL_SOS
7
POWER_SOS
8
ALL_OFF
R628
R630
Q558
R631
KILL SOS CONTROL
TH-37PA30E/TH-42PA30E
P-Board Block Diagram
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