Philips 26MD257B/37 Service Manual page 155

Power Board Schematic Diagram(42")
1 2 3
A
FB924
SG1
1 2
BEAD
GS41-201MA
3
N
2
E
1
L
20174
CN904 L913
8mH 4.0A
B
T5AH-250V
F901
FB925
SG2
NTCR
1 2 1 2
GS41-201MA BEAD
TH902
C
C916
330N 25V
D
CN902
24V
BC847C
1
12V
2
3
4
5
6
7
8
9
STANDBY
10
11
64841 11P 2.5mm Bright_adj
E
24V
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 INV-ON/OFF 9
10 10
11 11
12 12
CN903 CN905
64842 12P 2.5MM 64842 12P 2.5MM
F
G
H
1 2 3
4 5
FB922 BEAD
SG3
1 2
HEATSINK
GS41-201MA
R960 HBD901
220K 1/4W
BD901
GBU8J-E3/45
4 1
R961 C926
180K 1/4W C935 C938 1.5NF/1KV
L912
2.2uF 450V 1uF 450V
HEATSINK
8mH 4.0A
HD901
FB923
L914
BEAD
HJC-S5032
CN906 12 2
10 3
R959
1
220K 1/4W 2
SG4 5
CONN
R918
GS41-201MA
14 7
13 8
47K
C913
R972
1N 50V
8K2 1/8W
C920
620R 1/8W
R973
0.1uF/25V
D915
IC902
BAV103
1 8
FB Vcc
R964
2 7 1
Comp Driver
2R2 1/6W R952
3 6 100R 1/8W
Mult GND
R929
4 5
CS ZCD
47K 1/8W
SG6961
R932
330R 1/6W
470P 50V D920 BAV21
C962 R980 3K3 1/8W
Q916
R981
C961
47K 1/8W
330N 25V
IC904
C922
TEA1507P
0.1uF/25V
1 8
VCC Drain
2 7
GND NC
3 6
Ctrl Driver
R923
4 5
Demag Sense
330R 1/8W
R953
D906
330K
LL4148
R958
330K
R950
560K 1/8W
BZX79-B18
ZD908
1
L916 47U
C957
10uF 25V IC907 D918 BAV21
TEA1507P
1 8
VCC Drain
2 7
GND NC
3 6
Ctrl Driver
4 5
Demag Sense
R933
1K
R978
330K
4 5
7.Circuit Diagrams and PWB Layouts
6 7 8
FB905
3.5*4.7
C900
1500pF / 250V
T905
EER-42
3
D925 12
UF1007 11
10
4
BYV27/200
R930
1
1K 1/8W
9
8
2 7
6
35R W5RH2.5X3X1.0
HEATSINK
FB914
1
HQ901
5 FB915 1
35R W5RH2.5X3X1.0
1
Q901
FB917
D914 R963
STW18NK80Z
1
2R2 1/6W
BAV103
R942
33
Q912
R975
BC857C
4.7K
D911
RGP10D
C947
6.8uF 50V
L915 47U
R948 1.5K 1/8W
Q915
R976
BC847C
47
HEATSINK
HD927
D927
1500PF 500V 3 SP1060
C945
ZD906
10 2
P4KE250A-E3
11
FB920
4
35R W5RH2.5X3X1.0
2
R951
1 2
1K 1/8W
1 1 2 C940
0.01uF 100V
D924
8
UF1007
9 FB919
2 35R W5RH2.5X3X1.0
D908
5
ER-28-3(12P)
RGP10D T904
R935 47?
6
R965
1
2R2 1/4W D919 BAV103 IC911
TCET1103G
R914
330
R943
4K7 1/8W
R934
R974 3K3 1/8W
0R3 1/4W
1uF/25V
C919
IC913
TL431ACZ-AP
6 7 8
9 10
HEATSINK
HD922
D926
STPS40H100CW
D922
1
2
3
C956
2
0.022uF 100V
2
0.01uF 100V
2
C939
35R W5RH2.5X3X1.0 L910 24V
2u4H
C954
47uF 35V
IC910
TCET1103G
R938
4.7K
R936
100K
C946
IC909
2uF2 50V
TCET1103G
3
R928 IC912
TL431ACZ-AP
12K 1/8W
R946 4.7K
STANDBY
L911 12V
2u3H
C955
2200UF 16V
R947
47K
C960
C924
470P 50V 330N 25V
3
9 10
53
TPM1.0U LA
11
A
B
C
D
E
F
G
H
11