67
SCHEMATIC DIAGRAM
NX-720H(G)/720H
X57-823 1/10
A
B
C
D
E
1
2
3
4
5
6
7
D
D
D
BLVL
SBC
/BINT
GPSC
TXC
RXC
/OVRB
50CS
80T
33GPS
33M
80ANT
80T
50C
+B
50MC
15M
50R
SB
33A
/SAVE
33A_2
50M
80C
SBC2
SBC2
SBC2
DSW
2SA1
9
55A-F
.
Q404
D401
DZ2J180(M)
.
F401
.
IC402
XC6118C23CMR
1
VoUT
2
VSS
3
VIN
4
5
VSEN
CD
2SA1
9
55A-F
Q410
.
D404
DA2S101
IC405
LT1616ES6-PBF
1
BooST
2
GND
3
FB
4
5
6
SHDN
VIN
SW
L405
C452
16
4.7u
FK330301
Q407
C440
47u
25
D406
DB22306
L404
IC1
TA7808F-NQ
3
GND
1
IN
2
OUT
IC401
XC620
9
B332M-G
1
VIN
2
VSS
3
CE
4
NC
5
VoUT
IC406
XC620
9
B332M-G
1
VIN
2
VSS
3
CE
4
5
NC
VoUT
IC407
NJM2878F4-33
1
2
CoNTRoL
GND
4
VIN
3
VoUT
.
IC404
XC620
9
B502P-G
1
2
3
NC
VSS
CE
4
VIN
5
VoUT
.
Q411
LTC014EEBFS8
Q401
LTC014EEBFS8
IC408
XC6205B152P-G
1
2
3
NC
VSS
CE
4
VIN
5
VoUT
CN411
CN414
CN421
2SA1
9
55A-F
.
Q402
.
Q405
LTC014EEBFS8
.
Q412
LTC014EEBFS8
.
Q417
EMD5
CN423
+B
.
C401
470u
25
.
D410
22ZR-10D
.
D411
DSA3A1
SB
CN422
CN417
CN418
Q403
MTM
9
81400BF
6
1
2
3
5
4
7
8
Q40
9
EM6M1
4
6
1
2
3
5
D407
RB520SM-30
D403
RB520SM-30
.
Q408
EMD5
.
F502
R405
10k
R407
4.7k
.
R421
4.7k
R401
470
.
R414
10k
R406
10k
.
R681 0
.
R677
0
.
R403
270k
.
R404
100k
R424
10k
R423
4.7k
R402
10k
.
R67
9
0
.
R408
680k
.
R40
9
100k
R417
100k
R425
120k
R426
18k
R427
22k
R428
1k
R422
470k
.
R678
0
.
R680
0
R418
0
R438
10
.
R43
9
470k
R412
10
R413
10
.
R41
9
2.7k
.
R415
10k
.
R441 2.7k
.
R682
0
R683
0
C405
0.01u
.
C432
C417 100p
C413
100p
.
C43
9
0.1u
C433
25
C434
4.7u
4.7u
25
C451
10u
10
.
C428
0.1u
C442
0.01u
C443
1u
25
C455
2.2u
16
C453
0.01u
.
C424
100p
C457
100p
C430
4.7u 25
C461
1u
C446
0.01u
C438
0.1u
.
C647
0.01u
C450
10u
10
C40
9
0.01u
C423
100p
.
C458
100p
.
C460
100p
.
C648
0.1u
C437
4.7u
C416
0.01u
C448
0.01u
C436
0.01u
C435
2.2u
16
C44
9
1u
25
.
C475
1u
25
.
C441
2.2u
16
.
C476
0.1u
.
C477
0.1u
C454
2.2u
16
C445
0.01u
C456
0.01u
C447
1u
25
.
C411
0.1u
.
C422
1000p
.
C427
0.047u
.
C403
470p
100p
.
C431
.
C42
9
470p
C471
100p
.
C472
1000p
Q418
LTC014EEBFS8
.
F503
80T
50C
22uH
Digital GND
33A_2
TX-RX UNIT(X57-8230-10)
0.1u
AVR(80C)
AVR(33M)
Voltage Detector(BINT)
AVR(50C)
DC/DC Converter(50M)
AVR(33A)
AVR(33GPS)
AVR(15M)
AVR(15M)
DC Switch
(Over DC Supply
Protection)
DC Switch
(80ANT)
DC Switch(SB)
DC Switch(80T)
DC Switch(80ANT)
DC Switch(50MC)
DC Switch(50CS)
DC Switch(33A_2)
DC Switch(50MC)
DC Switch(80T)
DC Switch(80ANT)
DC Switch(50R)
DC Switch(SB)
Over DC
Supply
Protection
Reverse
Current Prevention
D403,404
Discharge
DC/DC
Converter
DC/DC
Converter(50M)
Surge
Protection
Reverse
Current
Prevention
+B
D407
D406
SBC2
B-BUS
-B
13.6V
BATTERY
CN41
9
2.5A
250mA
50R
33GPS
5A
D405
DB2S310
R411
47k
C420
1u
25
0.01u
C425
R410
4.7
0.01u
C408
C410
2.2u
16
R:13.6V
T:13.0V
5.02V
4.9
8
V
2.3V
3.31V
3.32V
7.9V
5.0V
4.99V
3.32V
3.3V
1.5V
3.3V
R:4.59V
T:3.45V
R:13.6V
T(50W):13.0V
T( 5W ):5W
R:0.0V
T:7.
8
V
R:4.75V
T:0.0V
6.77V:Rx
6.5V:Tx
~6.7V
3.26V
3.30V
4.
8
9V
R:3.3V
T:0.0V
R:0.0V
T:7.
8
V
R:3.3V
T:0.0V
R:0.0V
T:3.3V
1.7V
4.43V
3.27V
Содержание Nexedge NX-720H
Страница 83: ...NX 720H G 720H 83 MEMO ...