Kenwood NX-200 Service Manual page 150

AO
NX-200
VOLTAGE REGULATOR (33M)
33M
IC404
33M
XC6204B332D
4
NC2 VOUT
5
VSS NC
6
CE VIN
D416
R548 47K
D416
33A CONTROL
DC/DC CONVERTER (15M)
IC717
1.5V
XC9235A15CM1
L719
L718
5
15M LX
4.7u
15M
4
VOUT
CE/MODE
IC406
VOLTAGE REGULATOR (33A)
IC406
XC6204B332M
4 3
NC CE
2
VSS
33A
5 1
33A VOUT VIN
3.31V
3.82V
C411
1u
5A
SB2
19
19
21
15
I2CCK
I2SDA
9
/OINT
18
19 10
15
21
23
IFADCN
18
9
150
X53-426 9/10
AP
SCHEMATIC DIAGRAM /
3.284V
3
3.82V
2
L702
1
A
3.82V
R725
10
1
VIN
2
VSS
3
A
33A
CONTROL
D417
1SS388F
R549
47k
L704
A
15
21
9
18
C701
0.1u
19 12
SCL P12
20 11
SDA P11
21 IC701 10
VCC P10
9
I/O CONTROL
GND
22 8
INT P07
23 7
A1 P06
24
A
A2
A
AQ
原理图
D405,406,IC407
DC/DC CONVERTER
L401
22u
IC407
LT1616ES6-PBF
A
VOLTAGE REGULATOR (5A)
4.99V IC708 7.5V
XC6209B502PR
5A
A
5A SW
A
15
21
9
R730
26P_RD
470
26P_TD
OPT11
OPT8
OPT7
OPT6
OPT5
OPT4
OPT3
OPT2
OPT1
A
23
AR AS
CONTROL UNIT (X53-4260-11)
L402
R438
100k
R456
470k
R439
100k
Q402
SSM6N16FE-F
A
LEVEL CONVERTER
R435
100k
R454
470k
R436
100k
Q401
SSM6N16FE-F
A
SB2 SW
Q403
7.55V
2SJ648-A
SB2
OVER
VOLTAGE
PREVENTION
Q404
SSM3K15TE(F)
R437
470
A A A
SB2 SW CONTROL
19
F701
CN710
POW 26
0.25A
OPT6
OPT6 25
OPT6
TXI 24
TXI
RXEI 23
RXEI
RXEO 22
RXEO
TXO 21
TXO
OPT2
20
OPT2
OPT7
19
OPT7
OPT11 18
OPT11
OPT8 17
OPT8
DTI 16
DTI
OPT9 15
OPT9
5V 14
C703
AGND 13
4.7u
AO 12
AO
AI 11
AI
AGND 10
L701
A DGND 9
23
A
OPT5 8
OPT5
OPT10
7
OPT10
OPT4
6
OPT4
NC 5
CN709
26P_TD 4
26P_TD
26P_RD 3
26P_RD
OPT3 2
OPT3
OPT1 1
OPT1
+B
SB1
SBC
PGND
38M
15
21
9
IFADCN