Kenwood TK-3202L Service Manual page 31

K
TK-3202L
TX-RX UNIT (X57-6890-XX)
RF AMP
Q101
T:4.81V T:4.96V
2SK3077F
C107
* R103 *
Q100
2SC4619(P,Q)
RF AMP
R453
22k
DCSW
B
5T
APCSW
OSCIN
SP1
RX LO1
SP2
5R
5C
TH_DET
MOD
RX_W/N
TX_W/N
DTRLOADN
STD
EXTLIMIN
10
TCLK/DTRDO
DTRLoADN
TCLK/DTRDo
11
TDATA/DTRCLK
TDATA/DTRCLK
12
DI/O
DI/o
IC301
R306 13
RDF/FD
AQUA-L
RDF/FD
1k 14
SCLK
SCLK AUDIO PROCESSOR
15
DIR
DIR
16
XoUT
3.6864MHz CLK
XIN
C313
C309
82p
120p
R310 R313
C311
390k 100k
AMP3O
1u
C310
R311
0.068u 12k
RXD/PTT
TXD
PCTV
MIC_MUTE
QT/DQT_IN
BUSY
RSSI
AF_CONT
OPTDET
PTT
5M
SB
X57-689 3/4
L
SCHEMATIC DIAGRAM
L103 L104
C112 R111
R112
8.2n
8.2n
0 0
7p
T:4.96V
APC SW
Q104
DTC114EE
APC PROTECT
APC SW
Q105
2SK879(Y)F
R:7.61V
T:7.39V
C320
R316
120k
0.01u
R319
56k
C312
12p
C315 R322
1u 180k
R323
32 56k
AGND
31 R324 R329
RXIN
30 100k 82k
RXINo
29 R325
FILTERo
C328 100k
28
EXPoUT
27
390p
RXAFIN
C322
26 R321
RXAF
220k 0.015u
R326
C325 0
0.1u
C331
C326
R331
150k
1000p 0.1u
R330
3.3k
R314 C316
10k
0.1u
M
R120
TX DRIVE AMP *
R:7.61V
T:1.36V T:7.26V
Q102
L107
C123 *
2SK2596
33p
T:2.5V(H)
1.97V(L)
R126
2.2k
R135
150k
(D)
C140 IC101
TA75W01FUF
100p
1
oUT1 VCC
R130
2
IN1- oUT-B
150k
3
(D) IN1+ IN2-
4
R131 VEE IN2+
150k
(D)
COMPARATOR
(APC)
R134
150k (D)
APC SW
Q107
DTC114EE
R:5.01V
T:0V
R208 C210
82k 470p
W/N SW/TX
FM IF
Q301
SYSTEM
DTA114EE
IC201
TA31136FNG
R210
C329
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
MIC_MUTE
N O
TX FINAL AMP
Q103
R123 2SK3476-F
0
APC SW
Q109
DTA144EE
8 C146
7 1000p
6
APC SW
5
Q108
R141 2SK1824-A
100k
MCF
XF201
L71-0619-05
38.85 MHz
C231 R219
IN
oUT
2 1
560
0.01u
CF201
L72-0973-05
450 kHz
C213
0.1u
R:4.74V
C219 R216
33p 120k
IF AMP
Q203
2SC4649(N,P)
R211
3.3k
ISOLATION
MIC AGC
D303
Q302
DAN222
2SC4919
R328
10k
C333
R332
15k
0.1u
R360
0
PCTV
BUSY
RSSI
PCTV
5T
RX LO1
5R
PCTV
SP2
RXD/PTT
TXD
AF_CONT
OPTDET
PTT
5M
SB