Power Board Main Power - Philips 32PFL1409/93 Service Manual

Circuit Diagrams and PWB Layouts

Power Board Main Power, 42"

CN903 C5 C907 A4 C908 A4 C910 A1 C911 A4 C912 A4 C913 A4
FB902 A1 IC902 B1 IC903 D3 IC909 C3 L905 B4 L906 A4 Q901 B2
R921 B2 R922 B5 R923 B5 R924 B1 R925 B1 R926 B2 R927 C2
1
A03 Main Power
B1+
B+
1 2
FB902 FB902
BEAD BEAD R904 R904
4.7 OHM 1W 4.7 OHM 1W
A
C943 C943
0.1NF2KV 0.1NF2KV
R916 R916
4K7 1/4W 5% 4K7 1/4W 5%
R919 R919
B
10K OHM 1/4W 10K OHM 1/4W
1 8
BNO OVP
2 7
COMP VCC
3 6
(-)LATCH OUT
R924 R924
4 5
CS GND
3.6K OHM 1/8W 3.6K OHM 1/8W C922 C922
0.047uF 0.047uF IC902 IC902
R925 R925 LD7523A LD7523A
51K 1/8W 5% 51K 1/8W 5%
C923 C923
220pF 220pF
C
R930 R930
1M 1/4W 5% 1M 1/4W 5% Q904 Q904
KTA1273-Y- AT/ P KTA1273-Y- AT/ P
R935 R935
R931 R931 1K 1/8W 5% 1K 1/8W 5%
1M 1/4W 5% 1M 1/4W 5%
R936 R936 R938 R938
1M 1/4W 5% 1M 1/4W 5% 10K 1/8W 5% 10K 1/8W 5%
Q903 Q903
DTC144WKA DTC144WKA
D
R941 R941 C926 C926
1uF 1uF
1
TPH1.1A LA 10.
C914 B2 C915 B2 C916 B3 C917 B4 C918 B5 C919 B4 C920 B4
Q903 D1 Q904 C1 R904 A1 R905 A2 R906 A2 R907 A3 R908 A3
R928 C2 R929 C3 R930 C1 R931 C1 R932 C3 R933 C4 R934 C4
2
T902 T902
POWER X'FMR POWER X'FMR
6 11
12
R905 R905 R906 R906
9
100K OHM 1/4W 100K OHM 1/4W 100K OHM 1/4W 100K OHM 1/4W
5 10
C910 C910
7
2200PF2KV 2200PF2KV
R909 R909 R910 R910
4 8
100K OHM 1/4W 100K OHM 1/4W 100K OHM 1/4W 100K OHM 1/4W
D902 D902
SARS01-V1 SARS01-V1
D903 D903
JUMPER JUMPER
C915 C915 + +
0.1uF 0.1uF C914 C914
10uF/50V 10uF/50V
Q901 Q901
STP10NK70ZFP STP10NK70ZFP
R921 R921
22 OHM 1/4W +-5% 22 OHM 1/4W +-5%
R926 R926
10K 1/8W 5% 10K 1/8W 5%
R927 R927
1K OHM 1/4W 1K OHM 1/4W R928 R928
0.27OHM 2W 0.27OHM 2W
VCC1
C924 C924
0.01uF 0.01uF
2
EN 39
C921 B4 C922 B1 C923 C1 C924 C3 C925 C3 C926 D1 C943 A1
R909 A2 R910 A2 R911 A4 R912 B5 R913 A5 R914 A5 R915 A5
R935 C1 R936 D1 R937 C3 R938 D1 R940 D4 R941 D1 R985 A3
3
1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W
R907 R907 R908 R908
1206 1NF K 500V X7R 1206 1NF K 500V X7R
C907 C907
R985 R985 R986 R986
C908 C908
1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W 1.5 KOHM +-5% 1/4W
1206 1NF K 500V X7R 1206 1NF K 500V X7R
D907 D907
FMX-12SL FMX-12SL
2
D904 D904
FME-210B FME-210B
2
R917 R917 R918 R918 C916 C916 C917 C917
22R 1/4W 5% 22R 1/4W 5% 22R 1/4W 5% 22R 1/4W 5% 0.0022uF 0.0022uF 0.0022uF 0.0022uF
R929 R929
470 OHM 1/4W 470 OHM 1/4W
IC909 IC909
EL817MA EL817MA
R932 R932
3.9K OHM 1/8W 3.9K OHM 1/8W
R937 R937
10K 1/8W 5% 10K 1/8W 5%
C925 C925
0.33uF/50V 0.33uF/50V
IC903 IC903
KIA431A-AT/P KIA431A-AT/P
3
2009-Dec-18
D902 A1 D903 A2 D904 B3 D907 A3
R916 B1 R917 B3 R918 B3 R919 B1
R986 A3 T902 A2
4
L906 L906
3.5uH 3.5uH
+ + + +
C911 C911 C912 C912 C913 C913
0.1uF 0.1uF
1000uF 35V 1000uF 35V 470uF 35V 470uF 35V
R911 R911
NC NC
L905 L905
3.5uH 3.5uH C918 C918
0.1uF 0.1uF
+ + + + + +
C919 C919 C920 C920 C921 C921
1000uF 25V 1000uF 25V 1000uF 25V 1000uF 25V 470uF 25V 470uF 25V
ON/OFF
PDIM
R933 R933 R934 R934 12V
24V
PS_ON
5V
R940 R940
2K OHM 1% 1/8W 2K OHM 1% 1/8W
4
5
A03
A
24V
R913 R913 R914 R914 R915 R915
NC NC NC NC NC NC
R912 R912
NC NC
12V
B
R922 R922 R923 R923
NC NC NC NC
C
CN903 CN903
1
2
3
4
5
6
7
8
9
10
11
12
D
5
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