Tv-Supply - Philips LC4.1U AA Service Manual

Circuit Diagrams and PWB Layouts
TV & Scaler Board: TV Supply
1 2

TV-SUPPLY

A
F903
*EMC
2936
1n0
1910
F904
1
P_GND
2 F905
3
4
I913
5
6
7
F906
8
B F907
9
F908
10
F909
11
F910
12
*EMC *EMC
*EMC *EMC *EMC
2937 2938 2939 2940 2941
1n0 1n0 1n0 1n0 1n0
C
+12VSW
D
E
+12VSW
F
3139 123 5833.3
1 2
LC4.1U AA 7.
3 4
AUD_SUP
(3V3) 3V3
+3V3STBY
(3V3) 3V3
+3V3STBY
(0V) 14V5
+12VSW
A2,A3,A4
(0V) 3V3 POWER_DOWN
(0V3) 3V2
A2
(3V3) 3V3 STANDBY
(0V) 3V3
BACK_LIGHT_ADJ1 A7
*EMC
7930
2942 LAMP_ON_OFF A7
MC34063AD
1n0
BACK_LIGHT_ADJ2
A7 9V7 8
F902 DCOL
I901
(0V7) 0V6
DCOL
I911
14V4 7 IS
IS
3935 3930 3931 3934
1R0 1R0 1R0 1R0
5930
I902 6
14V4
VCC
10u VCC
2930
I912
470u 16V 3932
1V2 5
CIN_NEG
1K0 1%
SUP_GND 3933
SUP_GND
3K3 1%
2934
4n7
7920
L78M08CDT
I908
5920
7V9
14V3 1 3
IN OUT
2921
COM
2920
16V 47u
16V 47u
2
3 4
EN 27
5 6
3936
1K0
3937
150R
14V
I910
SWC 1 9V7
SWC
S Q
I904
R
3910
SUP_GND
SWE 2
IPK
SWE
2K2
3
TIMC
OSC
0V7
TIMC
I905
5931
2931
6930
REFERENCE
470p 220u
SS14
REGULATOR
SUP_GND
SUP_GND
GND 4
GND
SUP_GND
2933
470u 16V
SUP_GND
F903 = 0V DC
I906
F905 = 3V3 DC
F906 = 14V3 DC
F907 = 3V3 DC
F911 = 33V DC
0V3
F912 = 8V1 DC
F913 = 5V4 DC
5 6
7 8 9
14V4
7936
BC636
0V5
5932 F913
+5VSW
5V4
10u
RES
2935 2943
1m0 16V
470u 10V
I909
5910 F911
1m0
+VTUN
33V5
6910
BAV99
2911
6911
I907
35V 22u
BZX384-C33
5V3
7910
BC817-25
SUP_GND SUP_GND
3911
2910
1K0
470p
F912
SUP_GND
+8VSW_TV
7 8 9
1910 A1
2910 E8
2911 E9
2920 F3
2921 F4
2930 D3
2931 C6
2933 D6
A
2934 D4
2935 D8
2936 A2
2937 B1
2938 B2
2939 B2
2940 B2
2941 B2
2942 B2
2943 D8
3910 C7
3911 E7
B
3930 C3
3931 C3
3932 D4
3933 D4
3934 C4
3935 C3
3936 B7
3937 B6
5910 E7
5920 F3
5930 C2
C 5931 C6
5932 D8
6910 E8
6911 E9
6930 C7
7910 E7
7920 F4
7930 B4
7936 B7
F902 C3
F903 A2
F904 A1
D
F905 B2
F906 B2
F907 B2
F908 B2
F909 B2
F910 B2
F911 E9
F912 F9
F913 D9
I901 C4
I902 C3
I904 C7
E
I905 C6
I906 E7
I907 E7
I908 F3
I909 D7
I910 B7
I911 C4
I912 D4
I913 B1
F
E_14520_011.eps
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