Kenwood TK-480, TK-481 PC BOARD VIEWS TK-480/481

SRQPONMLKJIHGFEDCBA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN300
R306
D320 Q301
R314
R318
Q308
R325
R324
CP300
C340R331
R332
C318
L302
C312
R315
C307
Q310
C343
AM
SB 5M
1
3
4
6
1
34
6
G
S
D
1
24
SB
ME
LG
AUX
NC
AM
GND
KI1
DT
RXD
PF
AE
MIC
LBL
LR
PTT
CS
5M
KI2
KRS
TXD
CK
NC
AF IC301
16
1 8
9
D317
D318
D315
D316
D302
CP301
CP303CP302
C309
C304
R316 R308
Q304
Q305
C313
+
C341 C342
D304
R317
C308
Q306
Q307
C310
R320
R321
E
C
B
B
CE
C311 R309
D303
R313
L301
L300
SP+
SP–
R319
R336
R326
L306
TH300
R327
L307
R333 R328
C321
C314
+
Q309
L303
1
89
16
IC300
L305
L304 C333 C344
CN303
1
4
MON
LAMP
PTT
GND
GND
CS
SID
VCI
LEDK
VCC
SCLK
SOD
LEDA
NC
CN304
1
10
CS
R337
C323
C324
C325
C322
C315
+MIC
D319
R301
C339
R339 C332
R312 R311
L309
L308 MSW
D300
R340
R341
PTTR338
C331
C328
CN301
1
14
SP+
MSW
ME
PF
E
TXD
NC
SSW
SP–
EMC
PTT
NC
5M
RXD
R300
R302
D321
R303
R304
R305
Q300
C326 C335
C327
EMC
SSW
ME
C302 +
C301
AUX
S300
Q303
Q302
R310
C305
R307
C338
S301
MON S302
PTT S303
LAMP
J72-0517-22
C330
C337C329
C336
C316
C317
CN302
1
2
SP–
SP+
LCD ASSY
C369#
D310
D308
0
8
5
2
B
D306 D305
A
D307
D309
*
741
S
+
–MIC300
D301
J72-0517-22
PC BOARD VIEWS TK-480/481
45 46
DISPLAY UNIT (X54-3210-XX) -10 : K -11 : K2 Component side view + Foil side
Component side
Foil side
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Connect 1 and 4
Ref No. Address
 IC300 7K
 IC301 8N
 Q300 5D
 Q301 6L
 Q302 11B
 Q303 10B
 Q304 9L
 Q305 9L
Ref No. Address
 Q306 11L
 Q307 11L
 Q308 7L
 Q309 9J
 Q310 7M
 D300 6G
 D301 10A
 D302 9M
Ref No. Address
 D303 9K
 D304 10L
 D305 9K
 D306 6K
 D307 9N
 D308 7N
 D309 9Q
 D310 7Q
Ref No. Address
 D315 9M
 D316 9M
 D317 9N
 D318 9N
 D319 5H
 D320 6K
 D321 4D