Philips LC4.5E Service Manual page 28

Circuit Diagrams and PWB Layouts
TV Supply
1 2
TV-SUPPLY
A6
A
B
+12VSW
C
D
E +12VSW
3139 123 6072.1
1 2
LC4.5E AA 7.
3 4
7930
MC34063AD
8
DCOL
DCOL
I901
11V7 7 IS
IS
3930 3931
1R0 1R0
I902
5930
11V8 6
VCC
10u VCC
2930
I903
3932
5
470u 16V 1V2 CIN_NEG
1K0 1%
2932 3933
SUP_GND
3K3 1%
RES
SUP_GND 2934
4n7
7920
L78M08CDT
5920
1 3
IN OUT
2920 COM
47u 16V
47u 16V
2
3 4
28
5 6
1 11V7
SWC
SWC
S Q
R
I904
3910
5V5
SWE 2
IPK
SWE
I905
2K2
TIMC 3
OSC
TIMC 0V7
5931
2931 6930
REFERENCE
470p 220u
SS14
REGULATOR
SUP_GND
GND 4
SUP_GND
GND
SUP_GND
2933
470u 16V
SUP_GND
2921
5 6
7 8 9
5932 F915
10u
2935
470u 16V
I906
F912
5910
1m0 6910
BAV99
2911
6911
I907
22u 35V BZX384-C33
7910
I908 TUN_GND
BC817-25
3911
2910
1K0 470p
TUN_GND
TUN_GND F913
7 8 9
2910 D8
2911 D9
A6
2920 E4
2921 E5
2930 C3
2931 B6
2932 C4
A 2933 C7
2934 C4
2935 C8
3910 B7
3911 D7
3930 B3
3931 B4
3932 C4
3933 C4
5910 D8
5920 E3
5930 C3
B
5931 B7
5932 C8
6910 D8
6911 D9
6930 C7
7910 D7
7920 E4
7930 A5
F912 D9
F913 E9
F915 C9
+5VSW
I901 B4
C
I902 C3
I903 C4
I904 B7
I905 B6
I906 C7
I907 D8
I908 D7
+VTUN
D
+8VSW_TV
E
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