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28
LC4.6U
Circuit Diagrams and PWB Layouts
PAINEL DE PEQUENOS SINAIS: ALIMENTAÇÃO TV
Small Signal Board: TV Supply
1
2
TV-SUPPLY
A
B
+12VSW
C
D
E
+12VSW
3139 123 5867.2
1
2
LC4.6U
7.
3
4
7930
MC34063AD
8
DCOL
DCOL
I901
11V7
7 IS
IS
3930
3931
1R0
1R0
I902
5930
6
11V8
VCC
10u
VCC
2930
I903
3932
5
470u
16V
1V2
CIN_NEG
1K0
1%
2932
3933
SUP_GND
RES
3K3
1%
SUP_GND
2934
4n7
7920
L78M08CDT
5920
1
3
IN
OUT
COM
2921
2920
47u
16V
47u
2
3
4
28
5
6
1
11V7
SWC
SWC
I904
S
Q
R
2V / div DC
5us / div
I904
3910
5V5
SWE
2
IPK
SWE
I905
2K2
3
OSC
TIMC
0V7
TIMC
5931
2931
6930
REFERENCE
470p
220u
SS14
REGULATOR
SUP_GND
GND
4
SUP_GND
GND
SUP_GND
2933
470u 16V
SUP_GND
16V
5
6
7
8
9
5V3
5932
F915
10u
2935
470u
16V
I906
33V7
F912
5910
+VTUN
1m0
6910
BAV99
2911
6911
I907
22u
35V
BZX384-C33
7910
I908
TUN_GND
BC817-25
3911
2910
1K0
470p
8V
TUN_GND
TUN_GND
F913
7
8
9
2910 D8
2911 D9
2920 E4
2921 E5
2930 C3
2931 B6
2932 C4
2933 C7
2934 C4
A
2935 C8
3910 B7
3911 D7
3930 B3
3931 B4
3932 C4
3933 C4
5910 D8
5920 E3
5930 C3
5931 B7
B
5932 C8
6910 D8
6911 D9
6930 C7
7910 D7
7920 E4
7930 A5
F912 D9
F913 E9
F915 C9
I901 B4
I902 C3
+5VSW
C
I903 C4
I904 B7
I905 B6
I906 C7
I907 D8
I908 D7
D
E
+8VSW_TV
E_14710_068.eps
100804
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