Kenwood FM Transceiver TK-481 Service Manual page 43

A B C D
TK-480/481
PC BOARD VIEWS
1
DISPLAY UNIT (X54-3210-XX) -10 : K -11 : K2 Foil side view
2
3
4
J72-0517-22
5
6
7
8
9
10
11
12
13
43
14
E F G H
CN300
CP300 R306
AM
R325
SB
R324 Q301
5M
1 6
C340 R331
R314
3 4
R332
1
C318
Q310
G
D
S
IC300
8
Q305
C E
B
+
CP303 CP302
R319
D304
R336
Q307
R317
E
R320
C308
C
B
R321
I J K L
CN303
R301
R311 R312
L309
D320
MSW
L308
16
9
SP+
L301
SP–
L300
Q309
L303
R337
R326 +
CS C323
C324
CN304
C325
C321
C322
44
M N O P
J72-0517-22
R300 D321
R302
EMC
R304
CN301
R303
R305
+ C302
SSW
R338 C331 C328
ME
PTT
R340
R341
+MIC
+
MIC
–
Ref No. Address Ref No. Address Ref No. Address
IC300 7I Q306 11H D304 10H
IC301 8G Q307 11H D315 9G
Q300 5P Q308 7H D316 9G
Q301 6H Q309 9J D317 9F
Q302 11R Q310 7G D318 9F
Q303 10R D300 6M D319 5L
Q304 9H D302 9G D320 6I
Q305 9H D303 9I D321 4P
Q R S
S300
AUX
R310
Q303
C305
R307
Q302
Component side
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Foil side