Kenwood NXR-901 Service Manual page 196

0 10k
2
GND
oUTPUT
5.99MHz
DDS IC
IC401
V
AD9835BRUZ
22 R419
1u 3.9k
16 1
FSADJUST
CoMP
15 2
REFIN
C423
AVDD
0.01u
14 3
REFoUT
IoUT
5V
13 4
DVDD
AGND
12 5
DGND
PSEL0
R417
11 6
MCLK
PSEL1
0
10 7
SCLK
FSELECT
9 8
SDATA
FSYNC
OP AMP 8V
C538 0.1u
R537 560k
R539
3 4
IN(-) oUT
1k
2 8V
VEE
1 5
IN(+) VCC
IC501 TA75S01F-F
R536
REFERENCE
150k
SIGNAL AMP
10MHz
Q506
7.9V
3SK294-FP
C528 R534 C539
A-24
0.1u 12 82p
1.4V
2dB
ECTOR
DETECTOR
D506
HSM88AS-E
R530
100k
REFERENCE
SIGNAL AMP
Q504
RD01MUS1-T113
3dB
L507 A-20
L39-1517-05
05
R523
0n
18
R525
1
INT VCXO : 0V
OCXO or EXT Ref :
G : 2.8V
S : 0.6V
D : 8V
VCC
A-16
3 C333 R337 C334
Q307
0.01u 1.8k 0.01u 2SC4617(R)
3.1V
REFERENCE
SIGNAL AMP
C435
LPF16
0.1u
R433 R434 R423
0 0 100
C433
19.2MHz
470p
5V
Q405-407
Q407
DC SWITCH
SSM3K15TE(F)
Q406
SSM3K15TE(F)
R420
Q405 10
SSM3K15TE(F)
C555 C563
120p 47p
L510 L511
560n 680n
3.0V
C553
0.1u
3.3V
Q507,508
DC SWITCH
8V
Q507
SSM3J01F
INT VCXO : 0V
OCXO or
EXT Ref : 8V
Q508
SSM3K15TE(F)
OP AMP
C546 0.1u
R550 560k
IC502
TA75S01F-F
R552
3 4
IN(-) oUT
1k
2
VEE
C547
1 5
IN(+) VCC
0.1u
R551
150k
REFERENCE
SIGNAL AMP
Q505
C541 R544
A-21
3SK294-FP
0.1u 12 C620
82p
C337
2.5V
0.01u
BUFFER AMP
IC402
NJU6368PF1
1 6
19.2MHz
FoUT
VSS
C436 R425 R427
2 5
VDD
XT
10p 3.3k 0
C434
3 4
XT
CoNT
470p
R424
10
R422
10
FREQUENCY DIVIDER
IC503
TC7WH74FU-F
C565 R563 5 4
Q GND
0.01u 270
6 3
CLR Q
5V
7 2
PR D
8 1
VCC CK
8C1
D518,519
R561
REFERENCE
470k
SIGNAL SWITCH
S-11
D519
HSC277
D518
HSC277
C568
0.1u
C569
0.1u
D516,517
REFERENCE
SIGNAL
D517
SWITCH
HSC277
D516
HSC277
INT VCXO : 0V
OCXO or EXT Ref :
G1 : 3.3V
G2 : 3.3V
S : 1.5V
D : 7.9V
C558
0.1u
3.3V
C438 33C
0.01u
OSC-5
C439
0.1u
4 1
VCC VC
C437
3 2
oUTPUT GND
1000p
X401
L77-3096-05
19.2MHz
5V
R580
100
R570
0
LPF19
C580 C583
120p 47p
L515 L516
10MHz
C572
560n 680n
0.1u
D509
HSC119
R565
1k
C577 10p
R566 C578 10p
1k
D510
HSC119
Q509 Q510
3 4 3 4
5 5
2 2
1 6 1 6
SSM6L05FU-F
SSM6L05FU-F
Q509,510
DC SWITCH
10MHz OCXO
20.0MHz R369
0
IC403
TK71733S
3.3V
5 1
VIN
VoUT
2
GND
4 3
oN/oFF
NP/VREF
V-7
VOLTAGE REGULATOR
BUFFER AMP
IC504
NJU6368PF1
C599
1 6 47p
FoUT VSS
C592
L519
0.01u
2 5
VDD XT
330n
3 4
XT CoNT
Q518
SSM3K15TE(F)
DC SWITCH
REFERENCE
SIGNAL AMP
8V
A-25
4.4V
Q511
3.8V
2SC4617(R)
C585
0.1u
D509,510
D511,512
DC SWITCH
SURGE
PROTECTION
REF_IN
R357
220
C601
18p
L520
390n
2.1V
C598
0.1u