Kenwood TK-2102G Service Manual page 33

Vhf fm transceiver
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P
TX-RX UNIT(X57-6020-10)
5T
DC SW
Q106
APC
APC
2SK1824-A
VOLTAGE
LIMITER
B
5R
APC
R222
C243
L204
0
2p
0.75u
BPF TUNING
R341
100k
5MS
B
APC
TXD
PTT
C327
0.1u
DC SW
Q305
2SA1362-F(GR)
R327
0
C334
220p
DC SW
Q304
DTC144EE
AFCO
SB
TO AF AMP
Note : The components marked with a dot (
Q
SCHEMATIC DIAGRAM
C131
L110
L111
3T
4T
1000p
R:0V
T:7.3V
R:0V
T:1.7V
5T
R136
150k(D)
C134
100p
R133
150k(D)
R134
R137
R138
150k(D)
150k(D)
150k(D)
5T
T:5.0V
Q108
DTC114EE
DC SW
R213
R232
0
47
Q203
3SK318
MIXER
RF AMP
BPF TUNING
R233
100k
R:150MHz 1.0V
175MHz 2.8V
IC302
TA7368FG
R:3.4V
1
10
NC1
PoUT
2
9
VCC
PW-GND
3
8
NC2
PRE-GND
4
7
C330
VIN
PHASE
5
6
100p
RIPPLE
NF
R332
C332
150
10u6.3
AUDIO POWER AMP
R333
C331
470k
R:7.5V
R:7.1V
C333
0.47u
0.47u
) are parts of layer 1.
R
D101,104
ANTENNA SW
D104
C140
HSC277
10p
D101
C137
L114
HSC277
1000p
5T
T:0.8V
R:0.1V
D102,103
ANTENNA SW
APC
IC100
NJM2904V-ZB
1
8
V+
2
7
3
6
R142
4
5
1M
GND
R145
180k
L211
C262
C254
C257
33n
1000p
1.5p
1.5p
D203-205
BPF TUNING
5MS
B
TXD
PTT
REVERSE
PROTECTION
T:4.8V
AUDIO MUTE SW
R:3.4V
Q307
R536
2SK1588-AZ
C337
1k
100u6.3
R537
100
R538
100
DC SW
Q306
DTC144EE
S
TK-2102G
C144
C147
9p
10p
L115
L117
ANT
6T
5T
R123
0
R144
330
DC SW
Q109
DTA144EE
APC
R240
C261
0
15p
7.5V
F500
L501
3.0A
R539
0
J500
PTT
MIC
5MS
AFG
TXD
NC
SP
MIC500
C532
470p
X57-602 4/4
T
1
2
3
4
5
6
7
33

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