Tx-Rx Unit (X57-7010-Xx)(A/4) - Kenwood TK-3170 Service Manual

AE
TK-3170/3173

TX-RX UNIT (X57-7010-XX)(A/4)

R923
B
0
F901
F53-0324-05
L901
BATT
2.5A
VOLTAGE
LIMITER
BATT
CN901
E40-6420-05
1
GND
C926 470p
2
RX
C925 470p
3
TX
C924 470p
4
MOD
5
C923 470p
TCXO
6
5MS
C921 0.022u
7
UL
8
PCLK
9
PDAT
10
PLE
C917 0.1u
11
THM
12
BPF
13
ASQL
14
RSSI
15
DETAF
16
WIDE
17
NARROW
18
5R
19
5C
20
5C
21
5T
22
5T
23
R903 1k
APCSW
C906 0.01u
24
DSW
25
PC
26
GND
62
X57-701 (A/4) 1/2
AF
SCHEMATIC DIAGRAM
RF AMP
(COMMON)
Q507
2SC5488
L522 C579
47n
4p(B)
RX
LOCAL
SW
C728
0.01u
R916 1k
R915 1k
R914 1k
R913 1k
4.9V
R506
150k
10 16
DGND DVDD
9 17
DGND DVDD
PLL SYSTEM
C501
R501 8 18
REFin IC501
VP
0
0.01u 7 19
ADF4111BCP7
AVDD Rset
6 20
R503
AVDD CP
47
L501
R507
4.7u
100
L506
220n
C515
470p
AG
PRE-DRIVE AMP
Q601
R603 R604 2SC5488
TX RF SW
33k
1k
C601 L604
D516
18n
HSC277 470p
L707
18n
C739
2p(B)
XF701
L71-0617-25
49.95MHz
L706
R727 R728 C732
270n T:0V
680 100 0.01u
R:4.8V
R731
T:0V
R:0.45V
2.2k
C738
12p
T:0V
R522
R:5V
22
C522 C533
5p
1.5p
R518
R521
100 100
D502,503
D501,517
F-IN FILTER
FAST
SHIFT SW
LOCK UP
DIODE
D517
CV
D505,507
MA2S077
FREQUENCY
D501
CONTROL
TX VCO
MA2S077
L503 L505
R515 R516 D507
R511 R512
220n
0 0
560 0
1SV325F
R550
T:0V
0
R:4.1V
D509,511
Q503
FREQUENCY
RX VCO
CONTROL
OSCILLATOR
RX VCO
D511 C548 L513 C558
22n
1SV325F 6p(B)
47p
Q503
2SK508NV(K52)
AH AI
PRE-DRIVE AMP
Q602
2SK3077F
C609 C611
R609
33
5p
470p
T:0.5V(Hi)
0.45V(Lo)
T:5V
R:0V
R733
0
C743
BPF
1p
C747
MIXER
Q704
T:0V 470p
3SK318
T:0V
C745
R:1.8V
R:1.8V
470p
L511
4.9V
12n
C544
R527
Q501
220k
1.5p
0.85V
2SC5488
L523
C575
47n
2p
F-IN AMP
T:4.1V
R:0V
C541 L512
C555
18n
22p
4p(B)
Q502
2SK508NV(K52)
D513
Q502
R523
TX VCO TX VCO
47k
MODULATOR OSCILLATOR
R531
22
C567
0.5p(B)
APC
5T
DSW
B
APCSW
PC
5R
R738
0
BPF
WIDE
NARROW
RSSI
ASQL
5R
5C
C566
0.5p(B)
RX
TX
2nd_Lo