Kenwood 144MHz FM TRANSCEIVER K2E Service Manual page 48

A B C D
TH-K2AT/K2E/K2ET
1
TX-RX UNIT (X57-674X-XX) (A/3) Component side view (J72-0883-09 A/3)
0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3
2
+
3
R24
LV 1
+
R30
Q4
+
C38
C37
C26
4 +
C27
8
R21
C42
R36
+
C41
5
C57
C271
6
R131
Q23
C189 C188
C272
7
L46
C54 C56
C55 R38
L45
C186 R90
R351
8
C166
C190
1 16
R127
C116
9
IC3 C182
C161
C176
8 9
R118
R135 C174
C170
C173
R117
10
C175 Q22
R123
C171
11
Ref. No. Address Ref. No. Address Ref. No. Address
IC1 4D IC17 9J
12
IC2 8F Q4 4C
IC3 9B Q6 3E
IC6 6M Q12 5J
IC9 9P Q13 7F
IC10 6P Q14 9E
13
IC11 6Q Q15 5E
IC15 7P Q20 10E
44
14
E F G
PC BOARD
C24 R19
Q6
R20
R18
D70
16
IC1
CN9
9
R231
C40
R34
Q15
C66 +
C128
R33
R144
R143
C126 C70
R137
VR6
TH3
R149
DCS BAL
VR1
R145
Q13
FREQ
S
D
G
C114
C195 +
D14
C125
R82
R74
5 4
IC2
8 1
D15
C108
C117
R76
Q34
+
G
C106
R212
D
S D31
C115
R116 C168
Q21
R215
R216
Ref. No. Address Ref. No. Address Ref. No. Address
Q21 10D Q36 10E Q56 7L D26
Q22 10D Q37 8L Q57 8Q D31
Q23 6B Q38 7K Q59 8J D34
Q24 8D Q41 9Q D7 4B D40
Q27 6H Q47 7S D14 8E D41
Q31 6L Q51 4H D15 9D D60
Q34 9F Q53 9Q D16 4D D62
Q35 10F Q55 5P D25 6K D63
H I J K
CN6
C310
D62
D63
D64
R252
D65
SET
R224
S
G Q12 D
S
S
R203
D Q27
C78
G
C247
R151 R152
R153
TH1 C118
C510
B
Q37
C213 +
E
R264
R261
R260
R166
R165
R171
C320
R170
J2
R167
DC IN
C212 C203
R324 C204
Ref. No. Address
7L D64 4H
9F D65 4H
7L D69 3G
7S D70 3H
7S D71 3H
3H D72 3G
3H D80 10G
3H
L M N O
PC BOARD
TX-RX UNIT (X57-674X-XX) (A/3) Component side view (J72-0883-09 A/3)
0-11 : K,K2 0-21 : M,M2 2-71 : E 2-72 : E3
POWER
R246 R248 1 COM0
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
R207
SEG6
+
SEG7
+
C253
SEG8
SEG9
C249
SEG10
Q31
G
SEG11
D
S
SEG12
C248 SEG13
Q56
R204 SEG14
C252
G
SEG15
D
SEG16
S
SEG17
C250
SEG18
SEG19
R202
SEG20
C
SEG21
SEG22
+
C246
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
J3 SEG30
MIC
36 SEG31
J4
SP
J72-0883-09 (A/3)
P Q R
TH-K2AT/K2E/K2ET
LCD
ANT
Q55
S
D
G
C304 R242
3 2
R227
IC10
4 1
R226
R237
+
C291
1 8
C290
IC15
4 5
R236
R238
C360
R244
C300
L63
Q41
4 3
Q53
C309
5 1
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Foil side
S
1
2
3
4
5
6
7
8
9
10
11
12
13
45
14