Circuit Diagrams and PWB Layouts
10.
10-3-2
System Power 2
20000_502.eps
System Power 2
B02
B02
2015-08-06
715G7030
System Power 2
LNB_EN
C778
NC/100N 50V
LNB_LINEDROP
17
LNB_LINEDROP
13V/18V_SW
15
13/18V_SW
R751
5.1KOHM +-5% 1/10W
C776
NC/10UF 16V
FB755
120R
1
2
C759
NC/220NF 16V
R752
10K 1/10W 5%
R
776
N
C
/100K 1/
16W
5
%
R763
NC/10K 1/16W 5%
D750
NC/FB340M
1
2
C7
8
4
NC/2
.2
u
F
25V
+
C752
220UF 16V
C777
NC/100N 50V
R770
NC/10K 1/10W 1%
C754
NC/0.1uF 25V
R
774
N
C
/100K 1/
16W
5
%
INS997
NC/10K 1/16W 5%
R766
NC/4K7 1/16W 5%
C750
1UF 10% 16V
U751
NC/MP8126DF-LF-Z
SGND
1
BY PASS
2
VDD
3
COMP
4
EN
5
LINEDROP
6
POK
7
TCAP
10
ILIMIT
11
VOUT
12
VBOOST
13
BST
14
SW
15
PGND
16
13V/18V
8
EXTM
9
EP
17
R750
5K1 1/16W 5%
Q751
BC847N3
+
C762
NC/220UF 16V
C757
NC/470PF 50V
R768
NC/100K 1/16W 5%
C751
NC/4.7UF 10V
R
775
N
C
/100K 1/
16W
5
%
Z
D
750
NC/P
J
S
D2
4
CW
1
2
R778
NC/33Kohm 1/16W +/-1%
Q756
NC/MMBT3904
Q750
AON4421
D
1
D
2
D
3
G
4
S
5
D
6
D
7
D
8
R771
NC/0R05 1/16W
R765
NC/100K 1/10W 5%
L751
NC/1uH
ZD4103
NC/MM3Z3V6B
1
2
C
755
NC/1
0
u
F
25V
C7
83
NC/1
0
u
F
25V
L750
NC/22uH
FB754
120R
1
2
D752
NC/FB340M
1
2
C
760
NC/1
0
u
F
25V
R753
6K8 1/10W 5%
C758
NC/47NF 16V
R4293
NC/4.99K 1/16W 1%
R779
NC/39K 1/16W 5%
C772
NC/100N 16V
R769
NC/10K 1/16W 5%
R759
10K 1/16W 5%
D751
NC/FB340M
1
2
R760
NC/33R 1/16W 5%
C761
NC/22NF 25V
R4292
NC/34.8K 1/16W
Z
D
751
NC/P
J
S
D2
4
CW
1
2
R767
10K 1/16W 5%
C771
NC/2.2uF 25V
+12V
PANEL_VCC
PVDD
+12V_AU
+12V
+12V
+12V
DVDD3V3
DVDD3V3
GND
5,7,8,9,10,11,12,13,14,15,16,17,18,19
PANEL_VCC_ON/OFF
13
TUNER_LNB
15
DISEQC_OUT
15
PVDD
12
TUNER_LNB
LNB_LINEDROP
17
TUN_LNB
17
LNB_EN
15
R7
7
2
NC/2
.2
K
1
/4
W
+
C770
NC/220UF 16V
TUN_LNB
TUN_LNB
R7
7
3
N
C
/2.
2K 1/
4W
13/18V_SW
LNB_EN
LINEDROP
LO : 13V/18V
HI : 14V/19V
DISEQC_OUT
LNB_LINEDROP
Panel VCC=12V
ESD & Surge
Protect
Add for Unicable
PANEL_VCC ON/OFF:(OPCTRL9)
Normal:High
Stand_By:Low
TUNER_LNB
PANEL_VCC_ON/OFF
GND
PANEL_VCC_ON/OFF
Audio VCC= +12V
PVDD
DISEQC_OUT
LNB POWER SUPPLY
LNB_LINEDROP