Table of Contents
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TO J-BOARD
J10
PF10
1
2
5
6
IC902
LED DRIVE
TP903
TP901
2
TP902
L904
1
TP904
!
!
D907
T901
COLD
HOT
D903
3
2
IC901
1
CONTROL
!
LINE
L905
FILTER
!
L901
LINE
FILTER
L902
+
-
!
D902
FULL WAVE
RECTIFIER
PF
Line
Filter
Board
PF1
1
4
PF9
4
1
AC INLET
D401
-
+
P9
3
1
AC PLUG
NEUTRAL
LIVE
D404
-
+
D410
P
Q416
Power
Supply
Board
TH-42PHD6/TH-42PHW6
POWER Block Diagram
PFC
DC400V
350V
D419
10
9
8
4
3
2
T401
Q404
Q406
D420
3
L402
14
16
D415
F405
Q401
AMP
L403
8
7
6
5
VCC
IC406
MOS
CURR
DRIVE
DET
POWER
FACTOR
CURR
COMP
CONTROL
1
2
3
4
Q420
Q407
1
2
Q421
R443
3
PFC
IC402
1
8
2
7
3
6
4
5
D434
4
3
RL401
RL402
350V
T410
8
14
D511
IC409
STB7V
6
15
4
5
2
13
D510
1
D557
D409
4
3
10
IC408
4
1
Q403
IC504
R
3
2
K
A
HOT
COLD
HOT
PR401
Q412
Q410
Q411
DRIVE
Q413
1
7
8
10
9
T402
Q414
1
3
5
6
DC180V
D539
T405
Q415
16
2
D530
D537
12
6
Q519
T403
Q515
10
2
Q545
9
3
7
8
5
Q504
Q514
Q525
Q528
5
6
Q
CLR
IC521
Q
D
3
2
1
4
IC404
2
3
4
1
4
IC403
2
3
3
STB7V
1
IC401
Q551
2
IC501
STB5V
POWER MCA
1
VDD
P00
20
2
VSS
P01
19
1
TV ON/OFF
IC502
3
18
XIN
P02
X501
4NHz
3
4
XOUT
P03
17
RESET
5
P10
16
PS SOS
Q544
6
RESET
P11
15
D555
Q535
7
14
P21
P12
8
P20
P13
13
Q501
Q522
9
D3
D0
12
ALL OFF
10
D2
D1
11
Q502
Q503
COLD
DC85V
DC75V
D531
Q527
T404
7
5
9
D541
8
D543
13
D536
D544
12
D534
D545
11
2
14
D533
K
1
R665
R
2
Vda
A
3
DC15V
IC512
DC15V
2
DC12V
T407
IC511
DC5V D535
5
4
5VAVR
1
4
PR509
D563
Q509
Q510
Q543
1
3
Q518
IC520
6
4
Q540
Q541
7
1
2
3
PR
CK
D
Q
Q508
IC523
Q542
Q524
CK
PR
CLR
Q
1
7
6
5
Q521
Q512
D564
Q516
6
Q513
Q506
R641
IC522
Q511
Vsus
1
Q517
P30
3
FAN SOS
VCC
1
P31
3
FAN SOS
VCC
1
FAN
P32
3
FAN SOS
PR502
VCC
1
Q531
D553
P33
Q530
3
FAN SOS
VCC
1
TO SS-BOARD
P12
SS12
1
Vda
2
Vda
4
+15V
P7
1
+15V
2
+15V
TO SC-BOARD
P23
SC23
1
+15V
2
+15V
TO SS-BOARD
P11
SS11
1
Vsus
2
Vsus
1
R661
TO SC-BOARD
2
P2
SC2
Vlow
1
Vsus
3
2
Vsus
TO Z-BOARD
P5
Z5
1
+12V
2
+12V
3
5V
7
+12Vs
8
+12Vs
11
+15V
TO D-BOARD
D549
PR510
P25
D25
1
+12V
D554
2
+12V
5
5V
Q520
7
FAN CONT
8
STB7V
1
2
R608
D565
3
Csus
D505
D506
TO D-BOARD
P27
D27
2
TV ON/OFF
Q552
Q537
4
STB5V
6
FAN SOS
7
PS SOS
8
ALL OFF
Q532
TH-42PHD6/TH-42PHW6
POWER Block Diagram
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