Kenwood TK-3301 Service Manual page 37

A B C D
TK-3301
PC BOARD
1
TX-RX UNIT (X57-7772-70)
2
Component side view (J79-0250-09)
3
F301
TXD
RXD
C303
4
A1 A4
A2
BATT+
A3 A5
1 8
5
CP301
THDET
4 5
R309
MDSW
R310
C331
6
C318
CN302
RESET 80
1
CN303
R317
MODE
7
R319
VOX
C337
8
20
L304
21
QTI
C414
9
R2
R21
GND
SB
10
11
Ref. No. Address Ref. No. Address
IC1 9G Q1
IC101 4N Q107
12
IC301 6B Q108
IC303 6H Q109
IC305 5C Q301
IC306 7D Q302
IC309 7O Q303
13
14
E F G
B
GND
5R
A6
AFMUTE
W/N
R201
C212
AFCONT
5C
61
60
PTT
R316
MOD Q1
LD
41
40 11 10
C3
R3
CP303
5M
20 1
Ref. No. Address Ref. No. Address
8H Q304 6I Q316 8O
3M Q305 7B D101 4M
3M Q306 8B D303 8S
4M Q312 8P D304 8S
6P Q313 7P
6P Q314 8O
5I Q315 8O
H I J K
GND
PCTV
MIC301
+ –
5T
C321
5
1
IC303
Q304
3
4
C310
R324
C45
R26 R30
R27
C44
LV
5M
(CV)
R12
R17 R20
+ + +
+
L M N O
PC BOARD
TX-RX UNIT (X57-7772-70)
Component side view (J79-0250-09)
Q108
G
L302
D
R135 C154
S
C325
Q107
R302
Q109 R303
C304
C136
SP–
R120
R123
R126
C395
C400
R381
6
10
C397
SP+
R389 Q316
R387
G
D
C404
OPTDET S
MICIN MIC
C409
CP304
R385 C415
SPO
R388
TXD C405
PTT/RXD
SPI
AE NC
P Q R S
TK-3301
J79-0250-09
L116
C315
C313
ANT
C311
C307
C305
CN301
Q301
Q302
C396
5
1
R378
R377
R307 D303
R383
R308 D304
+
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Foil side
1
2
3
4
5
6
7
8
9
10
11
12
13
14