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14.3. P and PF-Board Block Diagram
TO J-BOARD
J10
PF10
1
2
TP903
TP901
TP902
T901
!
COLD
HOT
!
RL901
D903
L905
!
L901
LINE
L902
FILTER
L903
PF1
PF9
1
4
4
AC INLET
P9
3
AC PLUG
TH-50PHD6/TH-50PHW6
POWER BOARD 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
Q404
Q406
L402
14
16
T401,T406
D415
Q401
AMP
8
7
6
5
VCC
MOS
CURR
DRIVE
DET
CURR
COMP
1
2
3
4
Q420
Q407
Q421
R443
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
!
T40
DC180V
D539
!
T405
16
2
D537
12
6
!
T403
Q515
2
10
9
3
7
8
5
Q504
Q
IC501
STB5V
POWER MP
1
2
VDD
P00
2
VSS
P01
1
1
3
1
XIN
P02
X501
4NHz
3
4
1
XOUT
P03
5
P10
1
6
1
RESET
P11
7
P21
P12
1
8
P20
P13
1
9
1
D3
D0
10
D2
D1
1
59
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