Schematic Diagram - Kenwood TK-2170 Service Manual

AJ
TX-RX UNIT (X57-7000-XX) (A/4)
TX DRIVE AMP
Q603
RD01MUS1
C617 L604
R616 C618
47n
0 1000p
39p
T:2.1V(Hi)
1.7V(Lo)
R:0V
APC
5T
APC VOLTAGE SW
R618
Q605
100 DTC114EE
B
DSW
APCSW
PC
5R
C748
R761
0
1000p
BPF
WIDE
NARROW
RSSI
ASQL
5R
5C
T:4.1V
R:0V
TX/RX VCO
DC SW
Q504
SSM6P05FU(F)
T:0V
R:4.1V C568 C570
4.9V
T:0V T:5V
0.01u
0.01u
R:5V R:0V
RX
TX
2nd_Lo
Note : The components marked with a dot (
AK

SCHEMATIC DIAGRAM

RF FINAL AMP
Q604
RD07MVS1
R626 C625 L607
0 12n
1000p
T:2.0V(Hi)
1.7V(Lo)
R628
3.9k
APC
VOLTAGE
LIMITER
T:0V
L712
R:5V
D703,704
RF BPF TUNING
R741
C750 C755 C757
3p(B) 4p(B) 47
8p(B)
RF BUFFER AMP
Q506
2SC5488
D701
DAN235E
4.2V
L519
RIPPLE FILTER
Q505
2SC4617(S)
D514
RIPPLE FILTER
STABILIZATION
DIODE
• ) are parts of layer 1.
AL
SURGE
ABSORBER
L610 L612 C670
L613
6T 3T
3T
68p
SURGE
ABSORBER
7.25V
7.4V
T:5V
R:0V
T:0V
R:4.9V
T:0V
T:0V
R:5V
R:3.2V
Q705
C768 R751
R750
3SK294(F)
0
15 8p(B)
RF AMP
D705,706
RF BPF TUNING
R704
C710
330k
47p
C705 L702
Q701
2SC4649(N,P)
100n
22p
2ND LOCAL
TRIPLER
CF701
L72-1010-05
1 OSCIN
D702
2 OSCOUT
DAN235E
C708
3 MIXOUT
WIDE
0.1u
CF702 4 VCC
L72-1012-05
C709 5 IFIN
C713
0.1u 6 DEC
0.1u 7 FILOUT
NARROW
R711
8 FILIN
D701,702
470k
CERAMIC
FILTER
W/N SW
R713
330k
NARROW
AM
TK-2170
D604
L616 L618
L617
D604,605
7T 7T 6T
HVC131
ANT SW
D605 C679 C681 C683
C676
HVC131 1000p 10p 11p 10p
L615
R647
8T
0
T:1.5V
R:0V
R634
R633
330k(D) 10k
IC601
C641
TA75W01FUF
100p 5 4
IN2+ VEE
R630 6 3
IN2- IN1+
100k(D)
7 2
OUT-B IN1-
8 1
VCC OUT1
R631
100k(D)
COMPARATOR (APC)
C651
0.1u
APC DC SW
Q607
DTC114EE
APC MUTE SW
R636
SSM3K15TE(F)
R637
0
10k
C772 C773
3p(B)
4p(B)
C777
10p(B)
T:4.9V
R:4.9V
FM IF SYSTEM
IC701 T:0V
TA31136FNG
R:4.4V
2SC4649(N,P)
16 C724
MIXIN
15
33p
GND
14
R760
N-REC
13
0
N-DET
12
CD701
RSSI L79-1474-05
11 C719
IFOUT
10
82p
QUAD
9 R717
2.7k
AFOUT
C714 R715
39p 3.3k
Q702
R716
DTA144EE
3.3k
W/N SW /RX
W:0V
N:5V
X57-700 (A/4) 2/2
AN
1
ANT
D606,608
2
ANT SW
APC
MUTE SW
Q608
DTA144EE
T:0V
R:7.4V
R639
150k
3
Q609
L717
C779
56n
33p
4
5
R726
220k
IF AMP
Q703
T:0V
R:0.7V
6
R759
0
7
63