Kenwood NXR-901 Service Manual page 192

900mhz digital base-repeater ocxo unit kxk-3 m3
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E
T
: 1.5V
C124
R : 0V
4p
8V
C169
C171
C120
A-2
L33
2p
3p
9p
Q10
1.5n
C170
C172
2SC5337
3p
3p
RF AMP
5C4
C320
Q306
REFERENCE
18p
5V
SIGNAL AMP
A-17
L305
1.1V
C323
390n
C330
68p
Q306
2SC4617(R)
0.01u
0.5V
X301
L77-3068-05
20.0MHz
OSC-4
R327
R329
1
VC
0
10k
2
GND
oUTPUT
8T2
T
: 8V
R
: 0V
L34
L79-1953-05
C125
C129
C130
R83
R89
47p
47p
10p
0
0
T
: 0.7V
R : 0V
No ATT
CHK1.0B
CN201
VS2
SHIFT
REGISTER
IC701
BU4094BCFV
8
9
VSS
QS
R707 100k
7
10
Q4
Q'S
R708 100k
6
11
Q3
Q8
R703 100k
5
12
Q2
Q7
R705 100k
4
13
Q1
Q6
3
14
CLK
Q5
2
15
DATA
OE
1
16
STRB
VDD
5V
R706
470k
5C2
20.0MHz
L307
1u
5V
5V
4
VCC
A-16
3
C333
R337
C334
Q307
0.01u
1.8k
0.01u
2SC4617(R)
3.1V
REFERENCE
SIGNAL AMP
F
T
: 8V
R
: 0V
C134
R96
R98
3p
220
22
L38
3.6n
RF AMP
8V
A-1
Q11
L35
RD01MUS1-T113
VS1
1.5n
CN203
CHK1.0B
T
: 2.2V
R
: 0V
R95
C137
IC8 NJM2904E-ZB
12k
0.022u
5
B+IN
GND
R97
6
B-IN
A+IN
470k
C133
7
BoUT
A-IN
1u
8
V-
AoUT
CN202
CHK1.0B
R92
D_PC
56k
T
: 8V
R
: 0V
VOLTAGE
REFERENCE
IC702
3
VIN
5V
1.6V
R341
R342
C338
Q308
2SC4617(R)
220
10
0.01u
20.0MHz
REFERENCE
SIGNAL AMP
C337
2.5V
0.01u
8T1
C142
L50
L51
6.8n
6.8n
47p
T
: 0.1V
D7
R
: 0V
HSM88AS-E
DETECTOR
4
3
2
1
OP AMP
R713 1k
1
SCLK
AGND4
R714 1k
2
DIN
VDRIVE
R715 1k
3
CS
DoUT
4
5V
AGND1
AGND3
5
AVDD1
VIN0
AD1582
6
AVDD2
VIN1
1
7
VoUT
REFIN
VIN2
2.5V
8
AGND2
VIN3
9
VIN7
VIN4
10
VIN6
VIN5
IC703
AD7908BRU
ADC
LPF10
C345
C347
18p
47p
5V
L309
L310
A-15
C341
C350
390n
330n
68p
0.01u
1.6V
1.2V
REFERENCE
SIGNAL AMP
20.0MHz
G
DC SWITCH
GND SPRING
S-1
CN130
Q14
E23-1330-
SSM3J01F
L39
8T1
10u
R107
470k
Q13
CN811
SSM3K15TE(F)
TRG
OUTPUT
INDICATOR
DC SWITCH
8AD_EN
SDo1
2DA_EN
SCLK1
20
L701
19
CoNT_5.0V
R718 10
1u
SDo1
R717
18
SDI1
R719 10
1k
SCLK1
17
R720 10
2DA_CE
16
CVT
PA_BIAS
15
PA_CURR
14
FAN_CURR
PWR_CONT
13
FWD_PWR
12
RFL_PWR
11
IC704
LM50BIM3/NOPB
5V
2
1
Vo
+VS
TEMPERATURE SENSOR
FAN_CONT2
FAN_CONT
TEMP_RST
20.0MHz
L314
10u
LPF9
C357
C359
18p
47p
L312
L313
C353
R356
390n
330n
A-14
68p
0
Q309
R360
2SC4617(R)
1.2V
R369
0
220
R357
220

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