10.
Circuit Diagrams and PWB Layouts
10-4-2
System Power 2
20140_501.eps
System Power 2
B02
B02
2016-5-25
C
715G7853
System Power 2
R775
10K
R743
4K7 1/16W 5%
DRAM1V5_EN
10
STBC3V3
C759
22UF 10V
Q752
LMBT3904LT1G
1
3
2
R777
100K
C751
470NF 10% 10V
For Fast boot use
+5V_STB
C765
10uF 16V
R764
10K 1%
+
C754
100UF 16V
R7
4
9
1
8
0K
+5V_STB
+5V_SW
R751
22K 1/16W 5%
R771
51K 1/16W 5%
Q702
LMBT3904LT1G
C753
NC/4.7UF 10% 10V
R752
5K6 1/16W 5%
+5V_STB to +5V_SW
+
C752
100UF 16V
NT72666 ---> 900mA
DDR3*4 ---> 800mA
C769
100N 16V
C
760
NC/
3
90pF
50V
Q701
AON4421
D
1
D
2
D
3
G
4
S
5
D
6
D
7
D
8
STBC3V3
C766
1UF 25V
U707
AP2125N-3.3TRG1
GN
D
1
VOUT
2
VIN
3
+5V_STB to DV33SB
+5V_STB
DRAM1V5
R774
3.3K 1/16W
R778
0R05 1/16W
PANEL_ON
12
R7
4
6
7K5 1/
10W
5
%
R765
0R
33K
R767
R768
PANEL
VCC
7K5
5K1
+5V
10K
2K2
NC
FB751
FB750
+12V
High
High
NC
FB
7
5
1
NC/1
2
0
R/
3
000m
A
1
2
+5V_STB
C755
1UF 25V
R773
10K
PANEL_VCC
C756
NC/4
.7
UF 6
.3
V
FB
7
5
0
120R
3
A
1
2
PWR_12V
Q753
AON4421
D
1
D
2
D
3
G
4
S
5
D
6
D
7
D
8
C767
10uF 16V
PANEL_VCC
PANEL_VCC_ON/OFF(STBC_GPIO5)
Normal:High
Standby:Low
ON OFF
R766
10K
R769
5K1 1/16W 5%
R767
27K 1/16W 5%
PWR_ON_2
4,11
R744
NC/100K 1/16W 5%
L706
1.5uH
C761
3.3NF 50V
U709
RT8079ZQW
VIN
1
VIN
2
GND
3
GND
4
AGN
D
5
FB
6
CO
MP
7
RT/
S
YN
C
8
SS/TR
9
SW
10
SW
11
SW
12
BOOT
1
3
PGOOD
14
EN
15
VI
N
16
GN
D
17
C774
100N 16V
R7
4
7
240R
1
%
R7
6
5
8
.2
K
1
%
C775
10N 50V
C7
5
7
100N
16V
C7
5
8
22
u
F 6
.3
V
C7
6
2
22
u
F 6
.3
V
C7
6
4
NC/2
2
UF
C763
100N 16V
+5V_STB to DRAM1V5