Philips 32HF7445/93 Service Manual page 36

Circuit Diagrams and PWB Layouts
Display Supply Panel
1 2 3
POWER BOARD
P
A
R904
2 1
Jump
S900
N 1 2
L904 spotgap
C8B-R6H_NC
FB900
R903 BEAD
240K_1206
CN901
2
C900
470pF/250V
R902
V AR901
varistor C908 C909
270K_1206
SOCKET 0.47uF/275V 0.47uF/275V
L
B L901 C901
470pF/250V
LS-PH04C-003LF
F901
FUSE 4A250V R901
FB901
L905
270K_1206
BEAD
C8B-R6H_NC
NR901
S901
1 2
SCK101R55 spotgap
R905
1 2
Jump
CN900 F901_1
Hole Hole
C
+24V +12V
+24V +12V C925 C923
CN913
0.1uF 0.1uF
1
1
2
2
3
3
4
4
5 BRIGHT -ADJ
5 C918
INVER T ER-ON-OFF
6
6
7 2 1
7
8
8 R970 1K BEAD
9 High : Normal 0.0022uF/400V
9
10 ST ANDBY_IN ST ANDBY
10
Low : Standby
11
11
R931
1 2 12V_ON/OFF
W AFER 2.5MM 11 P
C919
0?
2 1
D
BEAD_NC
0.0022uF/400V_NC
+24V_INV
CN915
1 C917
1
2 0.1uF
2
3
3
4
4
5
5
BRIGHT -ADJ
6
6
7 INVER T ER-ON-OFF INVER T ER-ON-OFF
7
8
8
9
9 C916 0.1uF
10 C915
10 R916
11 0.1uF_NC
11 100K_NC
12
12
W AFER 2.5MM 12P 64842
2
E
+24V
IC970
LA5779L-E
1
IN
C975 C974 C970 C971
5
ON/OFF
220u/35V 220u/35V_NC
0.1uF 0.1uF
R947
R988 R961
ST ANDBY_INV 2 1 1 2 1 2
Jump Jump
Jump wire_NC
R975
100K_NC
R948
12V_ON/OFF
Jump wire
F
G
H
1 2 3
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TPT1.1HA LA 7.
4 5
D901 STTH5L06FP
HBD901
2
Heatsink
HD901
2 Heatsink
6 10
R907
2 1 4
9
Jump_NC
2 8
S902
L903
FB903 430uH 0R19 LS-PH04D-001LF
spotgap
BD901
C905
ZBF094T -T125S-A R927
GBU6J
820K_1206
2.2uF 450V
1 4
R928
C920
L910 820K_1206
560PF
C906
2.2uF/450V_NC
R929 C927
820K_1206 1uF/50V
1 1mH
R919
FB905
FB904 R906
IC920
Jump_NC 0?_NC
1 2 1 8
VSEN VCC
Jump
S903 2 7
COMP DR V
R930
3 6
spotgap 16K MUL T G N D
4 5
CS ZCD
C930
22nF C921 UCC28051
5mH_NC
2.2uF
L909
2 1
C922
R922
10nF
R921
CN902 1K
CONN_NC 6.2K? 1 /8W
C931
390pF
R918
0?
FB918
FB919
HIC970
Heatsink
+12V
L970
2 1 2
OUT
35uH
R976
20R_NC
R973 C972
1000uF/16V C973
4 D970 1K_NC ZD973
FB
SB240 0.1uF
RLZ13B_NC
C976
1nF_50V
R971 19.6K_1%
C977 560pF
R972
2.2K_1%
VCC
R944 R945
0R_NC 10K_NC
1
Q937
2N3906_NC
ZD936
RLZ18B_NC
ZCD
4 5
36
6 7 8
FB902
BEAD
NR902
1 2
SCK101R55_NC
R910
330K_1%
V AR902 C907 C902
D923
2.2nF/500V
varistor_NC 120uF/450V
R91 1
1N4148_NC 330K_1%
R923
3k_NC
R912
330K_1%
R913
620? _1%
HQ901
2
Heatsink
R914
5.6K_1%
R924
33K
R926 R925 Q901
STP20NM60N
1
47?
10?_1/4W
R917 R932
22K 7.5K
D926
1N4148
C924
R920
22pF
0.15R/1W
R943
0R_NC
Q993
2N3904 R942 R941
2 3
220R 1M_NC
Q936 D957
R939 2N3906 P6KE120
3 2
10K C959
ZD935 2n2/500V
D959
RLZ15B R936
P6KE120
10K
R940
D935
R937
18R
RGP10D
1K_DIP
D958
ZD934 C934
UF1007
33uF 50 V
RLZ18B_NC
D934
R938
R959
200K_NC 18R
RGP10D
D954 1N4148_NC
R957
ZCD
R934
130K_1/4W
C955 80TL26T909
33R
R951 1uF/50V
C950
22K_NC
C953
22pF C954 ZD937
0.33uF/50V
IC950 1 Q990 33uF_50V
RLZ18B_NC
1 8
2N3904_NC
ZCD HV
2 7
FB NC
VCC VCC VCC VCC VCC VCC VCC VCC
3 6 R956
C951 220pF CS VDD
Q902
10?_NC
STP10NK80ZFP C949
4 5 1
GND OUT
C952 220pF 560p/1KV_NC
F A5541N R954
D953 1N4148 10?
R955
C956 2 1 ZD938
0.33uF/50V 22K
RLZ27B
R953
R958
150?
ZD939
RLZ18B_NC 4.7K_NC
R952
1K_1/4W D951
RGP10D
R950
0.33R/1W
D950
RGP10D
IC990
TCET1 103
IC991
TCET1 103
6 7 8
9 10 11
P
FB963
BEAD
FB960
BEAD
C961
1 2
FB961
BEAD 22nF/250V
FB962
BEAD
C960
HD960
2 1 2
Heatsink
3nF/100V_NC
A1
K
A2
D961 +24VF
SP10150-T O220
L966
A1
3 16 K 1 2
15 A2
15uH
14 D960
6 SP10150-T O220
ZD964
C965 C966 C964
RLZ27B_NC
1 1000UF 35 V 1000UF 35 V 1000UF 35V
13
12
2 11 L983
1 2
+24V_INV
7 9
10uH
8 10
T901
LS
R992
+24V
0R
R991 ZD991
C991
RLZ18B_NC
4.7K 0.1uF
+24VF
+24V +12V
R990
2.2K
ZD965 ZD966
RLZ27B RLZ13B
C997 R998
220P_NC 20K_1%
C995 220P_50V_NC
R965 R966
100? 100?
C996
R995
1K
0.47uF
D955 1N4148
IC995
TL431
R979 R996
4.7K_1% 4.7K_1%
R974 R967
Q992
1 1 2 ST ANDBY_IN
+24VF 2N7002
10K 1K
C988 R968
0.1uF
100K?
ST ANDBY_INV
Q988
2N7002 ST ANDBY
1
C987 R994
0.1uF
100K?
H_17010_042.eps
190907
9 10 11
A
B
C
+24V
D
E
F
G
H