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14.4. Power Block Diagram
TO J-BOARD
J10
PF10
1
2
TP903
TP901
TP902
!
T901
COLD
HOT
D903
L905
!
L901
LINE
L902
FILTER
PF1
PF9
1
4
4
AC INLET
P9
3
AC PLUG
TH-42PHD6/TH-42PHW6
POWER Block Diagram
5
6
IC902
LED DRIVE
2
L904
3
1
TP904
!
D907
3
2
IC901
1
CONTROL
!
LINE
FILTER
+
-
D902
!
FULL WAVE
RECTIFIER
PF
Line
Filter
Board
1
D401
-
+
1
NEUTRAL
LIVE
350V
D404
-
+
IC409
4
D410
D409
P
Q416
Power
Supply
Q403
Board
350V
10
9
8
4
3
2
T401
Q404
Q406
L402
14
16
D415
Q401
AMP
8
7
6
5
VCC
MOS
CURR
DRIVE
DET
CURR
COMP
1
2
3
4
Q420
Q407
1
2
Q421
R443
3
PFC
IC402
1
8
2
7
3
6
4
5
D434
RL401
T410
8
14
D511
6
15
5
2
13
D510
1
4
3
10
IC408
4
1
IC504
3
2
K
HOT
COLD
PFC
DC400V
D419
PR401
Q410
Q411
D420
DRIVE
F405
Q414
L403
IC406
Q415
POWER
FACTOR
CONTROL
1
4
IC404
2
3
1
4
IC403
2
3
STB7V
4
1
IC401
3
2
RL402
IC502
STB7V
RESET
D555
Q535
D557
Q501
Q522
Q502
Q503
R
A
7
T402
1
DC180V
D539
T405
2
16
D537
12
6
T403
Q515
10
2
9
3
7
8
5
Q504
Q514
IC501
STB5V
POWER MCA
1
VDD
P00
20
2
VSS
P01
19
1
TV ON/O
3
18
XIN
P02
X501
4NHz
3
4
XOUT
P03
17
5
P10
16
PS SOS
6
15
RESET
P11
7
P21
P12
14
8
P20
P13
13
9
12
D3
D0
ALL OF
10
D2
D1
11
58
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