Circuit Diagrams and PWB Layouts
10.
10-14-2
System Power 2
19610_514.eps
System Power 2
B02
B02
2013 12 16
715G6080
System Power 2
R4292
34.8K 1/16W 1%
LNB_EN
15
LNB_EN
R4293
4.99K 1/16W 1%
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
U751
MP8126DF-LF-Z
TUN_LNB
12
TUN_LNB
C7
6
0
10
u
F
25V
L750
22UH
R778
33Kohm 1/16W +/-1%
C7
83
NC
/1
0
u
F
25V
TUNER_LNB
C7
8
4
2.
2
u
F
25V
R753
20K 1/10W 5%
1
2
FB
7
5
1
NC
/1
2
0
R
1
2
FB754
120R
R750
10K 1/16W 5%
R759
10K 1/16W 5%
R752
10K 1/10W 5%
1
2
FB755
120R
C750
1UF 10% 16V
C751
NC/4.7UF 10V
Q751
BC847C
DVDD3V3
1
2
FB
7
5
0
120R
R751
5.1KOHM +-5% 1/10W
PANEL_VCC
+12V
+5V_SW
PVDD
+12V_Audio
PANEL_VCC_ON/OFF
10,12
TUNER_LNB
15
GND
3,5,6,7,8,9,10,11,12,13,14,15,16
DVDD3V3
3,5,6,8,10,12,13,15,16
PVDD
8
DISEQC_OUT
15
+5V_SW
3,6,7,10,14,15
13/18V_SW
15
+12V
3,8
LNB_LINEDROP
15
1
2
ZD4103
MM3Z3V6B
TUN_LNB
D
1
D
2
D
3
G
4
S
5
D
6
D
7
D
8
Q750
SM3201PSQA-TRG
Q756
MMBT3904
R4025
NC/0R05 1/16W
+
C752
220UF 16V
13/18V_SW
L751
4.7uH
LNB_EN
LINEDROP
LO : 13V/18V
HI : 14V/19V
DISEQC_OUT
R
774
10
0K
1
/1
6W
5
%
R
7
7
5
N
C
/1
00
K
1/
16
W
5
%
1
2
D751
FB340M
LNB_LINEDROP
C777
100N 50V
R
7
7
6
1
00
K
1/
16
W
5
%
C757
470PF 50V
+
C762
100UF 16V
R765
100K 1/10W 5%
C758
47NF 16V
C771
2.2uF 25V
R760
33R 1/16W 5%
R763
NC/10K 1/16W 5%
C754
100NF
R766
4K7 1/16W 5%
C761
22NF 25V
C772
100N 16V
R767
10K 1/16W 5%
C759
220NF 16V
1
2
D750
FB340M
R777
NC/10K 1/16W 5%
1
2
Z
D
750
PJ
S
D
24C
W
R768
100K 1/16W 5%
1
2
D752
FB340M
C7
5
5
10
u
F
25V
R769
10K 1/16W 5%
1
2
Z
D
751
NC/
P
J
S
D2
4
CW
C776
10UF 16V
+12V
+12V
DVDD3V3
R770
10K 1/10W 1%
R779
39K 1/16W 5%
PANEL_VCC ON/OFF:(OPCTRL9)
Normal:High
Stand_By:Low
TUNER_LNB
PANEL_VCC_ON/OFF
GND
PANEL_VCC_ON/OFF
+12V
DVDD3V3
PVDD
+5V_SW
DISEQC_OUT
+12V
LNB POWER SUPPLY
13/18V_SW
LNB_LINEDROP