Haier L42C1180 Service Manual page 62

14) Power
From
Power
FB701
Board
C707 C708
R703 R704
0.1uF/16V
0.01uF NC/4K7 1/10W 5%
10K 1/10W 5%
CN701
1 P12V
2
3
4
5
6 C709 C710
7 + C711
8 0.1uF/16V 0.001uF
9 220uF/25V
10
11
12 P24V
CONN
33G327812D C719 C720
+ C721
12P S/T 2.5mm 0.1uF 50V 0.001uF
220uF/35V
+5VSB
L703
33 OHM
C728 C729 + C730
470uF/10V
0.1uF/16V 0.001uF
3V3_STB
R733
2.2K 1/10W 5%
R713
PWR_ON
8 PWR_ON
47K 1/10W 5%
+5VSB
R715
47K 1/10W 5%
R718
PWR_ON
Q704
47K 1/10W 5% MMBT3904
+5VSB
FB704
NC / 33 OHM
C767
L706 2.2uH
22uF/ 10V
PS_ON
R701 100R 1/10W 5%
R702 100R 1/10W 5% St andby
BL_ON_OFF 8
1 2 120OHM
BL_BR_CTRL 10
12V
24V
U703
VCC5D
G1084-33T43Uf
3 2
VIN VOUT
C722
5V 0.01uF
+5VSB
+5VSB
R707
R709 1K 1/10W 5%
10K 1/10W 5% PS_ON
R711
Q701
10K 1/10W 5% MMBT3904
Q702
MMBT3904
VCC5D
Q703
1 8
S D
2 7
S D
C746 3 6
S D
4 5
G D
0.47uF/16V
AO4449 -7A/-30V C750 C749
+
470uF 16V
R732 0.1uF/16V
0R05 1/10W 5%
R717
33K 1/10W 5%
C
B E
R740
+ C701 R741 C744
U706
100uF 25V G5692P11U 22uF 10V
ZD703 10R 1/10W 5%
1 8
VCC VIN
2 7 10K 1/10W
REF LX
NC/BZT52C6V2-7-F 3 6
GND PGND
C774 C769 4 5
FB EN
0.1uF 50V 0.1uF 50V C770
NC
VCC5D
FB702
1 2
300 OHM
C718
C723 C724
D3V3 1UF/25V
4UF7 10V 0.01uF
C717 + C713
0.01uF 220uF/10V
VCC5D
FB703
1 2
300 OHM
C731
C759 C733 + C732 R708
1UF/25V
4UF7 10V 0.1uF/16V 220uF 25V 10R 1/10W 5%
C741 C740
1UF/25V 0.1uF/16V
For Tuner
P12V
U708
G9084T43U
3
VIN VOUT
C742
0.1uF/16V
Vout = 1.25x(R1+R2)/R1
62
3V3_STB
L705 4.7uH
R742 R748
C771 C705 C772 C768 + C702
1N50V 330P 50V 0.1uF 50V 10uF 16V 220uF16V
15 OHM 1/10W 47KOHM +-1% 1/10W
R1
C773 R749
330P 50V Vout = 0.8x(R1+R2)/R2
0R05 1/10W
R750
R2
15K 1/10W 1%
+ C725 R721
U704 R735
470uF 16V 10R 1/10W 5% G5627F11U
10K 1/10W
1 8 L704
VCC VIN
2 7
REF LX
3 6 4.7uH
GND PGND
C727 C726 4 5 73G253S 46 B
FB EN
1UF/25V 0.1uF/16V C766
R1
NC/0.068uF/16V
Vout = 0.8x(R1+R2)/R2
U707 R705
G5627F11U
10K 1/10W
1 8 L701
VCC VIN
2 7
REF LX
3 6 4.7uH
GND PGND
4 5 73G253S 46 B
FB EN
R712 C735
C734 R1
1000pF
NC/0.068uF/16V 18KOHM +-1% 1/10W
Vout = 0.8x(R1+R2)/R2
R714
R2
39KOHM +-1% 1/10W
8V3 8V3
U709
AZ1117D-5.0-E1
2 3 2
INPUT OUTPUT
1
ADJ/GND
C747 + C743
R716
R1 0.22UF 25V X7R 100uF 16V
100R 1/10W 1%
R719 560R 1/10W 5%
R2
3V3_STB U702 1V8_STB
AIC1084-18PE
3 2
IN OUT
C706 + C704
0.1uF/16V 220uF/10V
D1V8
R736 C765 C761 C762 C763
+
1000pF 0.01uF 22uF 470uF 16V
1.8K OHM 1/10W 5%
R737
24K OHM +-1% 1/10W
R738
R2
20K 1/10W 1%
VCC1V1
C738 C739 + C736
0.1uF/16V 22uF 220uF 10V
12 P24V
5VT
10,12,13,15 P12V
6,7,12,13 +5VSB
4,5,6,7,11,12,13 VCC5D
C745
+
3 5VT
220uF/10V
5,6,7,8,10 3V3_STB
3,4,6,7,8,10,12,13 D3V3
8,9,10 D1V8
8,10 VCC1V1