Haier HL42XD1 Service Manual page 45

42 LCD TV
14) Power
R701
From
R702
Power
FB701
Board
C707 C708
R703 R704
100PF 0.01uF
NC/4.7K OHM 1/10W
NC
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
33T327812D C719 C720
+ C721
12P S/T 2.5mm 0.1uF 50V 0.001uF
220uF/35V
+5VSB
L703
33 OHM
C728 C729 + C730
0.1uF/16V 0.001uF 470uF/16V
+5VSB
FB704
1 2
NC/300 OHM
L706 2.2uH + C701 C744
100uF 16V 10UF16V
ZD703
NC/BZT52C6V2-7-F
C
B E
+5VSB
3V3_STB
R709
10K OHM 1/10W
R733
10K OHM 1/10W
R713
PWR_ON
8 PWR_ON
Q702
22K OHM 1/10W MMBT3904
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100 OHM 1/10W PS_ON 5V
100 OHM 1/10W
BL_ON_OFF 3.3V 8
1 2 120 OHM
BL_BR_CTRL 0~3.3V 10
12V
24V
VCC5D
U705
NC
2 3
5V
VIN VOUT
C715 C716
NC NC
+5VSB
R740 +5VSB 3V3_STB
U706
SC194BMLTRT
10K 1/10W 5% L705
1 10
VIN LX
2 9 4.7uH
MODE PGND
73G253S 12 K
3 8
SY NC/PWM GND
R741 4 7
EN VID1
5 6
VOUT VID0
0R05 1/10W 5%
R742 NC
+5VSB
R715
+5VSB 47K OHM 1/10W
R707 R717
1 KOHM
R718 22K OHM 1/10W
PS_ON
Q704
R711 10K OHM 1/10W MMBT3904
Q701 R720
10K OHM 1/10W MMBT3904
NC
VCC5D
FB702
1 2
300 OHM
C718
C723 C724 + C725
0.01uF/16V
4.7UF16V 0.01uF/16V 470uF 10V
C727 100pF
R721 C748
C765
10K OHM 1/10W 0.0022uF
0.022uF/25V
3V3_PLL
R739
NC
VCC5D
FB703
1 2
300 OHM
C731
C759 C733 C732
+
0.1uF/16V
4.7UF16V 0.1uF/16V 220uF 10V
C735 100pF
R706 C737
+
C767 C705 C702
C740
22uF 0.01uF/16V 100uF 16V 10K OHM 1/10W 0.0022uF
0.022uF/25V
VCC5D
Q703
1 8
S D
2 7 For Tuner
S D
C746 3 6
S D
4 5
G D
0.47uF P12V
AO4449 -7A/-30V C750 + C749
R732 0.1uF/16V 470uF 10V 3
0 OHM 1/10W
C742
0.1uF/16V
Vout = 1.25x(R1+R2)/R1
46
3V3_STB 1V8_STB VCC5D
U702
AIC1084-18PE
3 2
IN OUT
C706 + C704
C722
0.1uF/16V 220uF 10V
0.01uF
D703 LL4148
73T253S 46 B
U704 C726
SC4524BSETRT
330NF50V L704
8 1
BST SW
7 2 4.7uH
FB IN
6 3
COMP ROSC
5 4 ZD702 R734
SS/EN GND
SM340A 2.2 OHM 1/10W
R735 R1
C766
68K OHM 1/10W
220pF
Vout = 1.0x(R1+R2)/R2
R2
D701 LL4148
C734 73T253S 46 B
U707
SC4524BSETRT
330NF50V L701
8 1
BST SW
7 2 4.7uH
FB IN
6 3
COMP ROSC
5 4 ZD701 R705
SS/EN GND
SM340A 2.2 OHM 1/10W
R708 R1
C741
33K OHM 1/10W
330pF
Vout = 1.0x(R1+R2)/R2
R2
8V3 8V3
U708 U709
G9084T43U AZ1117D-5.0-E1
2 3
VIN VOUT INPUT OUTPUT
1
ADJ/GND
C747 + C743
R716
R1 0.22uF/16V 220uF/16V
100 OHM 1% 1/10W
R719
560 OHM 1/10W
R2
Haier HL42XD1
U703 D3V3
G1084-33T43Uf
3 2
VIN VOUT
C717 + C713
0.01uF/16V 220uF 10V
DDR1V8 D1V8
R743
NC
R736 C761 C762 + C763 C764
0R05 0.01uF/16V 22uF 470uF 10V NC
R737
24K OHM 1/10W
R738
30K OHM 1% 1/10W
VCC1V1
R710 C738 C739 + C736
300 OHM 1/10W 0.1uF/16V 22uF 220uF 10V
R712
2.4K OHM +-1% 1/10W
R714
20K OHM 1% 1/10W
12 P24V
7,10,12,13,15 P12V
6,7,12,13 +5VSB
5VT
4,5,6,7,8,11,12,13 VCC5D
3 5VT
2
5,6,7,8,10 3V3_STB
+ C745
3,4,6,7,8,10,12,13 D3V3
100uF/16V
8 3V3_PLL
8,10 D1V8
9 DDR1V8
8,10 VCC1V1