71
SCHEMATIC DIAGRAM
NX-720H(G)/720H
X57-823 5/10
TX-RX UNIT (X57-8230-10)
U
W
V
X
Y
-t
SDO0
SCK0
50R
/EVCS
TV2
TV1
SPAF
MP
/IGN
SB
RXD2
INAMT
PA
GPSC
33A_2
PAAF
MM2
RXAF2
33A_2
M
M
MIC2
MIC2
.
J701
.
C801
47u
25
SSM3J15FS
.
Q706
2SA1832(GR)F
.
Q703
.
D704
DA3S101F
SSM3J15FS
.
Q705
2SC4738(GR)F
.
Q704
KTC4075E(Y,GR)
.
Q702
.
TH701
ERTJ0EV104H
D705
EMZ6.8N
D706
EMZ6.8N
.
IC711
BU7462NUX
1
2
3
4
VSS
5
6
7
8
VDD
.
IC713
TC7W53FK(F)
1
CoMMoN
2
INH
3
VEE
4
GND
5
6
7
8
A
CH1
CH0
VCC
.
D701
DA2S101
.
IC712
R2A20178NP
1
VIN2
2
VDD
3
LD
4
CLK
5
DI
6
VIN3
7
VoUT3
8
VoUT4
9
VIN4
10
VIN5
11
VoUT5
12
VoUT6
13
VIN6
14
VDAREF1
15
VDAREF2
16
RESET
17
GND
VIN7
18
1
9
VoUT7
20
VoUT8
21
VIN8
22
VIN1
23
VoUT1
24
VoUT2
C803
16
330u
C804
330u
16
IC714
OUT1
POWERGND
OUT2
VCC
FILTER
P_P
STB
IN2
PREGND
IN1
1
2
3
4
5
6
7
8
9
10
.
D703
DA3S101F
.
CP701
100X4
1
2
3
4
8
7
6
5
.
D512
DB2S310
CN710
.
D513
DB2S310
.
D601
DB2S310
.
Q708
LTC014EEBFS8
.
IC703
BU7462NUX
1
2
3
4
VSS
5
6
7
8
VDD
.
D702
1SS422
.
R818
3.3k
.
R813
1k
.
R787
12k
.
R775
5.6k
.
R803
4.7k
.
R785
0
.
R777
10k
.
R806
1k
.
R804
4.7k
.
R805
1k
.
R800
100k
.
R816
12k
.
R778
27k
.
R76
9
680k
.
R73
9
330k
100k
.
R74
9
.
R750
3
9
k
.
R752
3
9
0k
.
R755
220k
.
R710
56k
.
R705
68k
.
R703
56k
.
R786
56k
.
R801
1k
.
R820
2.2k
.
R814
3
9
0
.
R746
10k
.
R743
470
.
R742
3.3k
.
R821
0
.
R81
9
2.2k
.
R823
12k
.
R7
9
6
0
.
R7
9
7
0
R822
0
.
R745
100k
.
R756
1k
.
R751
100k
.
R748
100k
.
R824
3.3k
.
R638
1k
.
R637
1k
.
R831
68k
.
R832
68k
.
R833
100
.
R834
1k
.
R837
5.6k
.
R838
3.3k
CN720
D_RXD2
.
R810
12k
R811
10k
.
C802
1000p
.
C7
9
6
1u
.
C782
0.1u
.
C766
4.7u
.
C753
0.1u
.
C752
0.1u
.
C767
4.7u
.
C774
0.1u
.
C765
22p
.
C770
0.1u
.
C738
0.1u
.
C740
1000p
.
C778
1u
10
.
C77
9
100p
.
C775
100p
C788
4.7u
.
C704
1u 10
.
C712
180p
.
C777
0.1u
.
C786
0.1u
.
C7
9
8
0.22u
.
C7
9
0
10u 10
.
C7
9
1
10u 10
.
C732
1000p
.
C73
9
1u
.
C741
0.22u
.
C744
0.22u
.
C7
9
7
0.22u
.
C784
10u
C805
1000p
.
C747
220p
.
C743
47p
.
C74
9
1000p
.
C806
1u
C811
1000p
.
C812
10u 10
.
C813
10u
.
C771
1200p
.
C780
100p
.
C810
4.7u
.
C82
9
10u
.
R845
100
.
Q70
9
SSM6N37FE
.
R846
22k
.
C830
0.1u
.
R847
22k
.
C831
0.1u
.
C833
1000p
.
C832
1000p
.
F701
EXT.SP
MI1
MI2
ASQ
+ -
+
-
MIC SUM
DEO
AFO
DI
+-
+
-
G_RXD2
MIC
ME
SP+
SP-
MIC SUM
AMP/LPF(DI)
RX SUM
AMP/LPF(RX AF)
D/A Converter
MIC/RX
Selector(BINT)
Noise AMP
MIC AGC
Q703,704
Mute(MI1)
Mute(MI2)
AF Mute Switch
Q708,70
9
Reverse
Current Prevention
D512
,
513
Line Protection
Reverse
Current Prevention
Noise Detector
AF Detector
D703,704
Line Protection
D705,706
DATAI
DATO
SP2
MIC
MRSW
AF AMP
.
R7
99
.
R7
9
8
17
18
1
9
20
MI2
2.5A
.
C735
10u
DI
B-BUS
B-BUS
.
R741
47
33A_2
B-BUS
2.7V
1.44V
1.44V
AC
Bias
AC
Bias
6.3V
6.5V
3.3V
R:4.75V
T:0V
Summary of Contents for Nexedge NX-720H
Page 83: ...NX 720H G 720H 83 MEMO ...