Kenwood NXR-700 Service Manual page 130

K
NXR-700
13.2V
8V #1'
T:7.84V
R:0V
C221
R224 R226
1k 0
1000p
.
Q203
CN203
RD01MUS1-T113
L205
CHK1.0B
56n
RF DRIVER AMP
T:1.38V
.
.
R:0V
R223 C224 IC201
NJM2904E-ZB
12k
0.1u
.
5
B+IN
GND
.
R225
6
B-IN
C220 A+IN
470k
7
BoUT
0.1u A-IN
8
. V-
AoUT
.
CN202
CHK1.0B
R229 56k
T:7.84V
D_PC
R:0V
D_oN
R887 1k
R888 1k
R889 1k
5V
VOLTAGE
REFERENCE
.
IC801 AD1582
3
VIN VoUT
1
2
CVT-REF
CVT-MOD
.
D_oN
IC703
. 9
QS
8 VSS
R719
. 100k 10
Q'S
Q1
7 Q4
R720
100k 11
Q8
6 Q3
Q7 12
5 Q2
13
Q6
4 Q1
14
Q5
3 CLK
15
OE
2 DATA
16
VDD
1 STRB
. 470k
BU4094BCFV
R715
SHIFT-REGISTER
<--19.2MHz
5V #2
.
DAC
IC701
BH2220FVM
1 AO1
LD
8
2 AO2
CLK
7
3 AO3
D_PC DI
6
5V 4 Vcc
GND
5
CVT-REF
8V #2
128
X56-311 (A/3) 3/6
L
SCHEMATIC DIAGRAM
L208 C230
68n
12p
VS1
DETECTOR
T:0.27V
R:0V DC SW
D201 Q205
L812
HSM88AS-E SSM3J01F
10u
APC AMP
4
.
3
CN811
TRG
2
1
R281
0
8AD_EN
SDo1
.
SCLK1
IC803
.
1
SCLK
AGND4 20
L801
2
DIN
CoNT_5.0V
VDRIVE 19
1u
R891
3
CS
SDI1
DoUT 18
1k
4 AGND1
AGND3 17
5
AVDD1
CVT
VIN0 16
6
AVDD2
PA_CURR
VIN1 15
7
REFIN
FAN_CURR
VIN2 14
8
AGND2
FWD_PWR
VIN3 13
9
VIN7
RFL_PWR
VIN4 12
TEMPERATURE
10
VIN6
SENSOR
VIN5 11
1
2
AD7908BRU
Vo +VS
ADC
3
.
IC804
LM50BIM3/NOPB
FAN_CONT2
FAN_CONT
TEMP_RST
.
10
SR_OE
R721
5V
.
C710
0.1u
EEPROM
IC702
S24CS02AFJTBG 5V
1
A0
VCC 8
.
R711
2
A1
WP 7
. R712
3 A2
SCL 6
R713
4
GND
SDA 5
Q701
SSM3K15TE(F)
.
R709
DC SW
470k
M
VOLTAGE
REGULATOR
IC808
8V NJM7808FA-ZB
8V #1
IN
OUT
R235 .
470k
D202
B30-2230-05
DC SW
PLL
Q204
INDICATOR
SSM3K15TE(F)
.
.
DAC
R804 10
2DA_EN
IC802
AD5312BRM
5V
10
. 1
LDAC
GND
9 .
10 R805 2
. VDD
SDo1
DIN
R801
10 . R806 8 3
VREFB
SCLK1
SCLK
1k
7
10 R807 4
VREFA
2DA_CE
SYNC
6
VoUTA 5
PWR_PRT
VoUTB
PWR_CONT
5V #2
<--19.2MHz
100k
4.7k
4.7k
WP
8V #2
N O
TX UNIT (X56-3112-72) (A/3)
3-STATE BUFFER
.
IC805
TC7SET126FU-F
3
4 oUTY
GND
2
INA
5 1
VCC
G
.
3-STATE BUFFER
IC806
TC7SET126FU-F
3
4 oUTY
GND
2
INA
5 1
VCC
G
.
IC807
VOLTAGE
5V NJM78M05DL1AZB
REGULATOR
5V #1
3 8V #1
1
oUT IN
2
IC407
NJU6368PF1
6 1 R506
FoUT
VSS
C510 100
5
2
VDD
XT
0.1u C502
4
3
XT
CoNT
0.1u
BUFFER AMP
.
REF_CV
CN401
CHK1.5B
IC401
1.67V
BU7261G
R401
4 OUT
IN- 3
0
VSS 2
C401 5
VDD
IN+ 1
0.01u
C405
OP-AMP
470p
5V #3
INT VCXO:5V
OCXO or EXT Ref:0V
D602
HSC277
D608
<--5.99MHz
HSC277
C497
0.1u
R610
R518
R508
100k
100k
0
DC SW
D402
Q601
HSM88AS-E
SSM3J01F
DETECTOR
.
DC SW
Q602
CN402
SSM3K15TE(F)
CHK1.5B
C610 .
INT VCXO:0V
REF_LV
OCXO or EXT Ref:5V
C485
0.1u
R871
0.1u
100k
D601 C498
HSC277 <--10MHz 120p
L418
D607 C490
R509
0 0.1u 560n
HSC277
RF SW
13.2V
SCLK0
SDo0
8V #1
8V #2
5V #2
<--19.2MHz
C503
47p
L419
680n
WP
8V #2