Kenwood TK-3202 Service Manual page 38

K
TK-3202/3206
TX-RX UNIT (X57-6890-XX)
RF AMP
T:4.81V
C107
R103 *
47k
Q101
2SK3077
Q100
2SC4619
RF AMP
R453
22k
TH_DET
DCSW
B
5T
APCSW
OSCIN
SP1
RX LO1
SP2
5R
5C
MOD
RX_W/N
TX_W/N
DTRLOADN
STD
10
DTRLOADN
TCLK/DTRDO
TCLK/DTRDO
11
TDATA/DTRCLK
TDATA/DTRCLK
12
DI/O
DI/O
R306 13
IC301
RDF/FD
RDF/FD
AQUA
1k
14
SCLK
SCLK
AUDIO PROCESSOR
15
DIR
DIR
16
XOUT
XIN
EXTLIMIN
C309 C313
82p
120p
R310 R313
C311
390k 100k
AMP3O
1u
C310
R311
12k
0.068u
PCTV
TXD
MIC_MUTE
QT/DQT_IN
RXAFO
BUSY
RSSI
SB
PTT
AF_CONT
OPTDET
5M
X57-689 3/4
L
SCHEMATIC DIAGRAM
T:4.96V
L104
C112 L103
R112 R111
8.2n
8.2n
7p 0 0
T:4.96V
APC SW
Q104
DTC114EE
APC PROTECT
APC SW
Q105
2SK879(Y)
R:7.61V
T:7.39V
R316 C320
120k 0.01u
R319
56k
C312
12p
C315 R322
1u 180k
R323
56k
32
AGND
R324
31 R329
RXIN
30
100k 82k
RXINO
29 R325
FILTERO
C328 100k
28
EXPOUT
27
390p
RXAFIN
26 C322
R321
RXAF
0.015u
220k
R326
C325 0
0.1u
C326 C331
R331
1000p 150k 0.1u
R330
3.3k
C316
R314
10k 0.1u
M
C118
*
TX DRIVE AMP * R120
R:7.61V
T:1.36V T:7.26V C123
Q102
33p * L107
2SK2596
(G)
T:2.5V(H)
1.97V(L)
R126
2.2k
R135
150k
(D)
C140 IC101
TA75W01FU
100p
1
OUT1
VCC
R130 2
IN1- OUT-B
150k
3
(D) IN1+ IN2-
4
VEE
R131 IN2+
150k
(D)
COMPARATOR
(APC)
R134
150k (D)
Q107
DTC114EE
APC SW
R:5.01V
T:0V
C210
R208
82k
W/N SW/TX 470p
FM IF
Q301
SYSTEM
DTA114EE
IC201
TA31136FN
C329
R210
3.3k
1u
W/N SW/RX
Q202
DTA144EE
W:0.015V
N:4.94V
RXAFO RXAFI
C330
R446
0
1u
DETECTOR
MICO MICI
D302
R445
RB706F-40
R318
C317
0
1.2k
0.1u
N O
* C120 TX FINAL AMP
Q103
* R123
2SK3476
APC SW
Q109
DTA144EE
C146
8
7
1000p
6
APC SW
5
Q108
2SK1824
R141
100k
MCF
XF201
L71-0619-05
38.85 MHz
C231
IN R219
oUT
2 1
560
0.01u
CF201
L72-0973-05
C213
0.1u
R:4.74V
C219
R216
120k
33p
IF AMP
Q203
2SC4649(N,P)
R211
3.3k
ISOLATION
MIC AGC
D303
Q302
DAN222
2SC4919
R328
10k
R332 C333
15k
0.1u
R360
0
PCTV
5T
RX LO1
5R
PCTV
SP2
TXD
SB
PTT
AF_CONT
OPTDET
5M