Power Board - Philips 170CW8FB/00 Service Manual

26 HUDSON 8

6.2 Power Board

715G2545-2
1 2
POWER
BD901
!
KBP208G
3 2
A
C907
+
100uF/450V
!
L902
1 2
4 3
!
7.0mH C905
0.1uF
B
C902 C901
0.001uF/250V
0.001uF/250V
! !
R915
100K 1/8W
L901
2 3
C
!
1 4
4.0mH
!
C903
0.47uF/275V
! ! !
R900 R902 R901
D
680K 1/4W 680K 1/4W 680K 1/4W
!
VAR901
N.C
Varistor
NR901
!
NTCR
F901
!
t
FUSE T3.15A/250VAC
E
2 1
CN901
!
SOCKET
F
1 2
3 4
R904 R905 R908
300K 1/4W NC C906
1500pF/2KV 100K 2W
C938 R932
1500pF/1KV 300K 1/4W D900
R906 FR107
NC
ZD906 D901 R909
RLZ22B FR103 5.1 1/4W
+ C908
22uF/50V
R933
300K 1/4W R907
NC
D903 1N4148W
!
IC901
4 5
RT NC
3 6 R910 Q901
VCC CS
10 1/4W 2SK2645-54MR
2 7
COMP VCC
1 8
GND OUT
R938
ZD905
10K 1/8W
LD7552BPS
RLZ18B
FB901
BEAD
R912
220 1/4W
R914
0.47 2W
C928 C909
0.01uF 470pF/25V
GND1
GND
1
2
FG
HS2
HEAT SINK(D906)
1
2
HS3
HEAT SINK(Q901)
1
2
3 4
5 6
100 1/4W R918
100 1/4W R919
C912
0.001uF
100 1/4W R920 C917
C918
+ +
680uF25V 680uF25V
!
1 3
T901
D906
4 9
SP10100
R935 100 1/4W
5 7 3 1
D905
C929 NC
6 11 R961 100 1/4W 0.001uF
4
10
R962 100 1/4W +
C939
6
1000uF/16V
1 8
D907
3 12
31DQ06FC3
POWER X'FMR
R925
IC903 1K 1/8W
!
PC123X2YFZOF
C924
0.1uF
R926
1K 1/10W 1%
IC904
KIA431A-AT/P
C925
NC
C921
3300PF/250V
+5V
DIM
ON/OFF
5 6
7 8
L904 R941 R945
1K 1/4W 1K 1/4W
1.1uH
C922
470uF/25V + ZD902
R944 RLZ13B
R946
1K 1/4W
1K 1/4W R943
1K 1/8W
Q903
ZD901
PMBS3904
NC
C932 R939
NC
1000pF
L903
1.1uH
+ C940
1000uF/16V
+
C915
470uF/16V
R940
33K 1/10W
R924
ZD922
150R 1/8W
ZD921
RLZ5.1B
RLZ13B
R927
3.6K 1% 1/10W
D916
D915
1N4148W
1N4148W
R942
1K 1/10W 1%
R930
CN902
2.43K 1% 1/10W
1
2
3
4
5
6
7
8
9
C916
10
0.1uF
CONNECTOR
VOL
MUTE
7 8
9 10
+12V
C930
0.1uF
A
F903
+5V
JUMPER
BD901 A1 CN901 E1
B
CN902 C8 C901 B2
C902 B1 C903 C1
C905 B3 C906 A4
C907 A2 C908 B4
C909 C3 C912 A6
C915 B8 C916 D7
C917 A7 C918 A7
C921 D5 C922 A7
C924 C6 C925 C6
C928 C3 C929 B6
C930 A9 C932 A8
C938 A3 C939 B7
C940 B7 D900 B4
D901 B4 D903 B4
D905 A6 D906 A6
D907 B6 D915 C8
D916 C8 FB901 C4 C
F901 E2 F903 B9
GND1 D4 HS2 D4
HS3 E4 IC901 B3
IC903 C5 IC904 C5
L901 C1 L902 B1
L903 B7 L904 A7
NR901 D1 Q901 B4
Q903 A8 R900 D1
R901 D2 R902 D1
R904 A3 R905 A3
R906 B3 R907 B3
R908 A4 R909 B4
R910 B4 R912 C4
R914 C4 R915 C2
R918 A6 R919 A6
R920 A6 R924 B7
D
R925 B6 R926 C6
R927 B8 R930 C8
R932 A3 R933 B3
R935 A6 R938 C4
R939 A8 R940 B9
R941 A8 R942 C8
R943 A8 R944 A8
R945 A8 R946 A7
R961 B6 R962 B6
SG901 B1 SG902 B2
T901 A5 VAR901 D1
ZD901 A9 ZD902 A8
ZD905 C4 ZD906 B3
ZD921 B8 ZD922 B8
E
F
9 10