Main Power Supply (42") (A2) - Philips 32PFL5604/78 Service Manual

Circuit Diagrams and PWB Layouts
Main Power Supply (42")
8 7
A2
Power Supply Unit (42")
F
R902
4R7
Z54
I
+24V/2A
C908 R925
100R
1U
Q920
2N7002
AGND
HDR2
E
R909
100R
Q915
2N7002
LDR2
R905
100R
Z57
I
Q913
2N7002
HDR1
D
R906
100R
Z58
I
Z63
I Q914
2N7002
C903 LDR1
0.47U
AGND
U901
1
LX2
C
C907 2
HDR2 AGND
1U HDR2
I
Z64
3
BST2
AGND
LDR1 4
Z65
I
LDR1
5
LDR2
Z66
I LDR2
2
6
R977
RW977
3 GNDA
75K 2K
1
7
AGND
RPT
R957
75K R956
8
(56K For AUO) 47K
B CT
I
Z68
C917A
9
C917
SYNC
220P 47P
R934
33K 10
LCT
AGND AGND
11
Z69
I
PDIM
DIM
R882
12
1K
C924
R930 VSEN_POL
R928
NC
0.01U
10K
OZ9926A
AGND AGND AGND
R915
2K2
Z70
I
A R924
C920
100K
0.022U
AGND
AGND
8 7
TCM3.2L LA 10.
6
R912
100R Z92
I
C
Q908
B R911
BT3904
10K
E Z61 Z91
Z55
I I
I
6 5
GND1
ND
E
7 4
Q911 VCC
BT3906
B
8 3
DRAIN
C
9 2
GND R923
NP
Z95
NS 100R
I
AGND 10 1
VC+
T901
!
C911
C
Q907 1U
B R910
BT3904
10K
E
Z56 Z62
I I
E
Q910
BT3906
B
C
AGND
R913
Z98
100R
I
C
Q905
B
BT3904
E
Z60
I
R914
E 10K
Q909
BT3906
B
Z99
I
6 5
C GND1
ND
7 4
VCC
AGND
8 3
DRAIN
9 2
GND
NP R922
NS 100R Z102
I
10 1
VC+
C
Q906
B C910
BT3904
T902
1U
!
E
Z59
I
R917
10K
E
Q912
BT3906
B
C
AGND
24
LX1
23
Z72
AGND
I
HDR1 HDR1
22
BST1 Z74
VREF
I
C914
21 1U
VREF C909
0.47U
20
AGND
VIN
AGND
19
ENA
18
Z75 C923
I
ADIM
0.1U
R969 R932
17 47K
56K
(39K For AUO)
UVLS
AGND
C922
16
0.01U
OVPT
AGND
Z76
I
TIMER
15
R962
750K C915A C915
SSTCMP 0.47U
1U
14
D909
4148WS
ISEN
AGND AGND
13
Z83
I
RW978
R958
C918 R931 1K8 470R
C916
Z71 10K
4700P 0.047U (2k4 For AUO)
I
R978
1K8
AGND AGND
AGND
6
EN 44
5 4
R941
0R
VBUS
D904
R948
4148WS
Z93
Z94 10R
I I
!
E T904
B
Q916
Q901
BT3906
SK3561
R949
C
1K
2
Q902
SK3561
D903
R947
4148WS
Z96 10R Z97
I I
E
1
Q919
B
R946 BT3906
C
1K
PGND
2
D907
R951
4148WS
Z101
Z100 10R
I
I
Q904
E
Q917 SK3561
BT3906
B
1
R950 C
1K
0.47U
!
C912 T903
Q903
D908
SK3561
R952
4148WS
Z103 Z104
10R
I I
E
Q918
BT3906 Y3
B
R953 1
C
1K
2
HOT
PGND
COLD
R901
56R
+24V/2A
BL_ON
Z82
I
D905
R927
4148WS
4K7 Z78
Z77
I
Z79
I
R903
C 4K7
B
E Q923
BT3904
D902
AGND
4148WS
4
5
2009-Jun-19
3 2
3
4
Z84
I
Z86
I
C913
R942
3 470P
Z85
I 100R
Z88
I
AGND
4
R975 R973
200R 200R
R938 R935
200R 200R
R939
R937
200R 200R
R944
10K
R940
R936
200R
200R
R916 R920
200R 200R
AGND
R921
R919
220R
220R
R971
R970
200R
200R
R974 R972
Z90
200R 200R
I
R960 R963
200R
200R
R964
2K2
R959
R961
200R 200R
D901
4148WS
AGND
AGND
D913
BAV70L
1 2
C921
3
1000P
AGND
I
VREF
C927
R968
4700P
47K
E
Z80
I
Q924 Z81
I
BT3906 B
Q922
R967
C
BT3904 R966
10K C
4K7
B R976
4K7
R918
E
4K7
AGND
AGND
AGND
3 2
1
F
P901
2
Z24
1
I
C901
33P
Z87
I
E
C906
0.022U
C905
0.022U
C902
33P
P902
2
Z23
I
1
D916
BAV70L
D
1
2
3
R945
10K
Z89
AGND
R954
100R
C
B
A
1
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