Haier LE43B7600A, Service Manual

Page: 48 / 66

48
10. Schematic Diagram
10.1 Main Board
715G7492M0D000004K
LDO
C7
08
10
0N
F
2
5
V
B
NC
+5V_Normal => +1.5V_DDR
R7
1
0
18
K
O
H
M
+
-1%
1/
10
W
L700
4.7uH 32mOHM 5.5A
!!! 惠ㄏノ 5A  DC/DC
+ C731
100UF 16V
+5V_Standy => +5V_Normal
R762
NC/10K 1%
EN_U701
R761
NC/10K 1%
CN700
CONN
2
4
6
8
10
12
1
3
5
7
9
11
ZD700
BZX84B6V8
1
3
(Component change)
盢 L701 2.2uH(  腹 :373G253S364D00)
э  3.3uH  腹 :373G253S364D00)
FB700
300R 4A
1 2
CN700 パ 14pin 传  12pin 夹非て connector.
C
7
27
10
0N
F
2
5
V
C
7
28
2
2u
F
6.
3V
C
709
100
N
F
25
V
+3.3V_Normal
R763
NC/10K 1%
C726
10
0N
F
2
5
V
VDDC
C724
22
uF
6.
3V
C725
N
C
/22
uF
+ C722
N
C
/10
0U
F
1
6
V
R706
9.1K 1%
C723
22
uF
6.
3V
VDDC_VSENSE
U702
G5719TBIU
VIN
4
EN
1
LX
3
VFB
6
GN
D
2
NC
5
R784
10K
+5V_Normal
R
705
N
C
/10
0K1
/1
6
W
R716
10K 1%
DVDD3V3
R712
0 OHM +-5% 1/8W
R711
0 OHM +-5% 1/8W
C715 NC/22P 50V
L702 2.2UH
R783
43K 1%
L706
2.2uH
R
786
10
K +
-1%
1/
16
W
R785
2.7K 1%
R760
5K6 1/16W 5%
+12V_Normal
R757
10K
C736
10u
F
25V
C735
10u
F
25V
R704
10K 1%
C
7
21
10
N
5
0V
埃 FB708
+3.3V_Normal
箇 ň USB 筿方  拈
R741 124K 1%
C769
10UF 25V
C751
10UF 25V
C762 22P 50V
C759
100NF 25V
U706
TPS54528DDAR
EN
1
VFB
2
VREG5
3
SS
4
GND
5 SW
6 VBST
7
VIN
8 E-Pad
9
R739
22.1K 1%
C768
10N 50V
C752
100NF 25V
C753
10UF 25V
C765
100NF 25V
C761
10N 50V
R740
1K 1/16W 1%
R755
1K 1/16W 1%
R737
NC/100K1/16W
C754
100NF 25V L703
3.3UH
C774
22UF 10V
+5V_USB
VIN_U707
U705
TPS54528DDAR
EN
1
VFB
2
VREG5
3
SS
4
GND
5
SW
6
VBST
7 VIN
8 E-Pad
9
C776
22UF 10V
FB707
120R 6A
1 2
C756
22UF 10V
+12V_Normal
C758
22UF 10V
+5V_Standby
C757
22UF 10V
C772
1UF 10% 16V
FB701
120R 6A
1 2
+12V_Normal
C760
1UF 10% 16V
R754 124K 1%
C773 22P 50V
+12V_Normal => +5V_Standby
Vout=0.765x (1+125.1K/22.1K) = 5.09V
C770
10UF 25V
R753
NC/100K1/16W
L704
3.3UH
C771
1UF 10% 16V
FB702
120R 6A
1 2
VDDC_VSENSE
C767
100NF 25V
C766
100NF 25V
R756
22.1K 1%
C775
22UF 10V
+3.3V_Normal
C729
2.2UF 16V
EN_U703
9/16 э

パ +12V_Normal э  +3.3V_Normal
R707
0R05 OHM
U701
TPS54328DDAR
EN
1
VFB
2
VREG5
3
SS
4
GND
5
SW
6 VBST
7 VIN
8
E-PAD
9
R738
NC/100K1/16W
C
7
20
1U
F
1
0%
16
V
C716
100NF 25V
R
7
45
N
C
/1
00K
1/
16
W
C764
NC
R730
NC/4.7K1/16W
Reserved for
power Enable
use
STR_GPIO 5
R715 150K
C702
1N 50V
R721 10
0
R
1/
16
W
1
%
﹍筿溃玂靡 IC pin  1.24V
C730
220NF 25V
R723
6.2K 1/16W 1%
R765
NC/4.7K1/16W
+3.3V_Standby
VDDC_CPU_VSENSE
R1
C742
100N
F
2
5
V
+1.5V_DDR
DDR_PWR_FB
VDDC_CPU
R724
47K +-1% 1/16W
R751
0R05 OHM
R700 33 OHM 1/16W
R732
0R05 OHM
R2
Vout = 0.6*(1+R1/R2)==>1.50V
Q704
NC
C700
NC/100N 50V
Q700
AO4449 -7A/-30V
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
C732
100NF 25V
+5V_Standby
+5V_Normal
U700
AP1117E33L-13-77
A
D
J(
G
ND)
1
VOUT
2
VIN
3
4
4
Q702
MMBT3904
R713
47K
3.5A(MAX)
R708
NC/1.2K 1/4W
PS_ON
+3.3V_Standby
C739
22
u
F
6.
3V
PS_ON
C746
10uF 16V
C745
100NF 25V
E
EN_U704
C
704
2.
2u
F
6.
3V
C748
10uF 16V
0603
DIM R701 33 OHM 1/16W
+3.3V_Standby
BL_ON
DDR_PWR_FB
R728
4.7K 1/16W
+ C737
NC/
10
0
U
F 1
6
V
Q705
MMBT3904
R720
NC/10K
+3.3V_Normal
PWR-ON/OFF 5,10
R749
33 OHM 1/16W
BRI_ADJ 5
M_SDA 5,7,13,15,16
Q703
MMBT3904
C755
1UF 10% 16V
DIM
R736
22 OHM 1/16W
C718
100N 50V
Vout=0.765x (1+125.1K/22.1K) = 5.09V
C743 1U
F
1
0
%
16
V
+5V_Standby
C744
10uF 16V
R764
NC/10K 1%
+
C717
100UF 25V
C733
100NF 25V
R729 4.7K 1/16W
Vout = 0.6*(1+R1/R2)=3.3V
R743
NC/2.2K1/16W
R1
+5V_Normal =>
+3.+3.3V_Normal
+5V_Standby
綼  DC-DC
0603
綼  DC-DC
0603
+3.3V_Normal
R733
33K 1%
R2
R752
22K 1%
C749
100NF 25V
C
703
10
0N
F
2
5
V
VBL_CTRL 5
C738
22
u
F
6.
3V
+3.3V_Standby
R725
1K 1/10W
R734
0R05 OHM
R735
22K 1%
R722
10
0
R
1/
16
W
1
%
C
C7
07
1U
F
1
0
%
16
V
C763
100NF 25V
C740
NC/
22
u
F
R727
2.2K1/16W
FB2
+5V_Standby
+12V_Normal => +5VUSB
0.5A(MAX)
Q701
MMBT3904
R714
0R05 OHM
R703 NC/33 OHM 1/16W
FB705
NC/300R 4A
1 2
R742
2.2K1/16W
R702 33 OHM 1/16W
R1
BL_ON
C7
06
10
U
F
25
V
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME
称 爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹 A
Custom
4 16 Thursday , April 02, 2015
< 称爹 >
19. POWER I
筿  綼  DCDC, 庇稰絬 , 环瞒 耑方
C747
22P 50V
M_SCL 5,7,13,15,16
C750
10uF 16V
(Component change)
盢 R743 パ 2.2K (  腹 :061G0402222 JY) э  NC
+12V_Normal
+12V_Normal
FB703
300R 4A
1 2
FB706
300R 4A
1 2
+24_Audio
+24_Audio
EN_U701
R746
NC/0R05 1/16W
C701
100N 50V
R788
22K 1%
(Schematic change)
盢 R752 パ 4.7K(  腹 :061G0402472 JF)
э  22K(  腹 :061G04022202FT)
穝糤 R788 22K(  腹 :061G04022202FT)
EN_U704
R750
NC
R718
4.7K 1/16W
C734
33P 50V
EN_U703
R744
NC/4.7K1/16W
R731
NC/0R05 OHM
U704
SY 8009BABC
EN
1
GND
2
LX
3
IN
4
NC
5 FB
6
3D_EN 5
C705
10
0N
F
25
V
R2
PS_ON
C719
1N 50V
FB704
300R 4A
1 2
+5V_Standby
Vout=1.1V*(1+R1/R2)
R709
NC/1.2K 1/4W
C741
100N
F
2
5
V
+5V_Standy => +3.3V_Standby
+5V_Normal
R719
0R05 OHM
U703
MSH6000A
EN
1
VFB
2
5V
3
SDA
4
SCL
5
LX
6
BST
7
PVDD
8
PowerPAD
9
USB_PW_EN 5,10
+3.3V_Standby
VDDC_CPU_VSENSE
R726
3.3K 1/16W
R747
0R05 OHM
R717
NC/ 0R05
500 mA.
Addr 0xC0
ぶ惠ㄏノ 500mA DC/DC!!
High : Power On
Low: Power Off
4000 mA
Vout=0.765*( 9.1K+18K)/18K =>1.15V
ノ SY8008B 蠢
0603
Connetor
L701 3.3uH
0603
500 mA