Power Board - Philips 160VW9FB/78 Service Manual

6.2 Power Board

715G2852-2
1
POWER
!
2 3
A
BD901 BD901
KBP208G KBP208G
C904 C904 !
!
0.22uF/275V 0.22uF/275V !
C902 C902 C901 C901
1000pF 1000pF
1000pF 1000pF
L901 L901
B
30mH 30mH !
!
C908 C908
R915 R915
100K OHM 1% 1/8W 100K OHM 1% 1/8W
0.22uF/275V 0.22uF/275V
R902 R902
!
!
680K OHM 1/4W 680K OHM 1/4W
R901 R901
R900 R900
!
680K OHM 1/4W 680K OHM 1/4W
680K OHM 1/4W 680K OHM 1/4W
C
!
VAR901 VAR901
Varistor Varistor
N.C
NR901 NR901
NTCR NTCR
!
!
t t
!
F901 F901
FUSE FUSE
D
2 1
CN901 CN901
!
SOCKET SOCKET
1
2
+ + C907 C907 R904 R904 R905 R905
100uF450V 100uF450V
300K OHM 1/4W 300K OHM 1/4W NC NC C906 C906
1500pF2KV 1500pF2KV
C938 C938
NC NC R932 R932
300K OHM 1/4W 300K OHM 1/4W R906 R906
NC NC
C911 C911 ZD906 ZD906 D901 D901
0.1uF 0.1uF RLZ22B RLZ22B FR103 FR103
+ + C903 C903
22uF/50V 22uF/50V
R933 R933
300K OHM 1/4W 300K OHM 1/4W R907 R907
NC NC
D903 D903
LL4148 LL4148
IC901 IC901
4 5
RT NC
3 6
VCC CS
R910 R910 2SK2645-54MR 2SK2645-54MR
2 7
COMP VCC
10R 1/4W 10R 1/4W
1 8
GND OUT
R938 R938
ZD905 ZD905
10K 1/8W 10K 1/8W
LD7552BPS LD7552BPS
RLZ18B RLZ18B
R912 R912
220 OHM 1/4W 220 OHM 1/4W
C909 C909
470pF/25V 470pF/25V
C928 C928
0.01uF 0.01uF
GND1 GND1
GND GND
1
2
HS2 HS2
HEAT SINK(D906_Q90G6263-3) HEAT SINK(D906_Q90G6263-3)
1
2
HS5 HS5
SHIELD(H85G0002-1) SHIELD(H85G0002-1)
HS3 HS3
1
HEAT SINK(Q901_Q90G6263-3) HEAT SINK(Q901_Q90G6263-3)
2
1
2
2
3
R918 R918
100 OHM 1/4W 100 OHM 1/4W
R919 R919
100 OHM 1/4W 100 OHM 1/4W
C912 C912
0.001uF 0.001uF
R920 R920
100 OHM 1/4W 100 OHM 1/4W
!
T901 T901
1
D906 D906
4 9 FCH10U10 FCH10U10
10
R908 R908
D907 D907 NC NC
100KOHM +-5% 2WS 100KOHM +-5% 2WS
5 7
8
D900 D900
11
R921NC R921NC
FR107 FR107 6 12
2
R922 NC R922 NC
1
R923NC R923NC
R909 R909
POWER X'FMR POWER X'FMR
5.1 OHM 1/4W 5.1 OHM 1/4W
D905 D905 31DQ06FC3 31DQ06FC3
R961 100 OHM 1/4W R961 100 OHM 1/4W
!
Q901 Q901 R962 100 OHM 1/4W R962 100 OHM 1/4W
!
R935 100 OHM 1/4W R935 100 OHM 1/4W
FB901 FB901
BEAD BEAD
R914 R914 R925 R925
0.47 OHM +-5% 2WS 0.47 OHM +-5% 2WS IC902 IC902 1K 1/8W 1K 1/8W
PC123X2YFZOF PC123X2YFZOF
C924 C924
0.1uF 0.1uF R926 R926
1K 1/10W 1% 1K 1/10W 1%
IC903 IC903
AZ431AZ-AE1 AZ431AZ-AE1
C900 C900
3300pF 250V 3300pF 250V
C925 C925
NC NC
BD901 A1 CN901 D1 CN902 C5 C900 C3
C903 B2 C904 A1 C906 A2 C907 A1
C910 A4 C911 B2 C912 A3 C915 B5
C921 A4 C922 A4 C924 C3 C925 C3
C930 A5 C931 D5 C932 A5 C938 A2
D900 A2 D901 B2 D903 B2 D905 B3
D915 C4 D916 C4 FB901 B2 F901 D1
F905 B5 GND1 C2 HS2 D2 HS3 D2
IC902 C3 IC903 C3 L901 B1 L903 B4
NR901 D1 Q901 B2 Q903 A5 Q904 B4
R902 C1 R904 A2 R905 A2 R906 A2
R909 B2 R910 B2 R912 B2 R914 C2
R919 A3 R920 A3 R921 A3 R922 B3
R925 C3 R926 C3 R927 C4 R930 C4
R935 B3 R938 B2 R939 A5 R940 B5
R946 A5 R947 B4 R948 A4 R952 B4
T901 A3 VAR901 C1 ZD902 A5 ZD905 B2
3
4
L904 L904
1.0uH 1.0uH
+ + C922 C922
C917 C917
+ + + + C918 C918 470UF/25V 470UF/25V
680uF25V 680uF25V
680uF25V 680uF25V
3
L905 L905
NC NC
ZD923 ZD923
NC NC
C921 C921
+ +
NC NC R948 R948
C910 C910 C939 C939 NC NC
+ +
NC NC NC NC R947 R947
NC NC
Q904 Q904 R952 R952
NC NC NC NC
L903 L903
1.0uH 1.0uH
C929 C929 + + C940 C940
1000uF25V 1000uF25V
0.001uF 0.001uF
R924 R924
150R 1/8W 150R 1/8W
ZD922 ZD922 ZD921 ZD921
RLZ5.1B RLZ5.1B RLZ13B RLZ13B
R927 R927
3.6K OHM 1% 1/10W 3.6K OHM 1% 1/10W
D916 D916
LL4148 LL4148 D915 D915
LL4148 LL4148
R942 R942
1K 1/10W 1% 1K 1/10W 1%
R930 R930
2.43K OHM 1% 1/10W 2.43K OHM 1% 1/10W
C901 B1 C902 B1
C908 B1 C909 C2
C917 A4 C918 A4
C928 C2 C929 B4
C939 B4 C940 B4
D906 A3 D907 A3
F902 B5 F903 B5
HS5 D2 IC901 B2
L904 A4 L905 A4
R900 C1 R901 C1
R907 B2 R908 A2
R915 B1 R918 A3
R923 B3 R924 B4
R932 A2 R933 B2
R942 C4 R943 A5
R961 B3 R962 B3
ZD906 B2 ZD921 B4
4
21
HUDSON 9
5
+12V
ZD902 ZD902
C930 C930
RLZ13B RLZ13B
R946 R946
150 OHM 2W 150 OHM 2W 0.1uF 0.1uF
R943 R943
A
Q903 Q903 470R 1/8W 470R 1/8W
PMBS3904 PMBS3904
C932 C932 R939 R939
1K 1/8W 1K 1/8W
0.001uF 0.001uF
F902 F902
+5V1
NC NC
F903 F903
B
+5V
3.15A 250V 3.15A 250V
+ +
C915 C915
470uF/16V 470uF/16V F905 F905
0 OHM 1/4W(NC) 0 OHM 1/4W(NC)
R940 R940
33K 1/10W 33K 1/10W
C
CN902 CN902
1
VOL
2
3
MUTE
4
+5V
5
DIM
6
ON/OFF
7
C931 C931
8
0.1uF 0.1uF
9
10
CONN CONN
D
5