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A B C D E F G H I J K L M N O P Q R S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN300
R306
D320
Q301
R314
R318
Q308
R325
R324
CP300
C340
R331
R332
C318
L302
C312
R315
C307
Q310
C343
AM
SB
5M
1
3 4
6
1
3 4
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
CP303
CP302
C309
C304
R316
R308
Q304
Q305
C313
+
C341 C342
D304
R317
C308
Q306
Q307
C310
R320
R321
E
C
B
B
C
E
C311 R309
D303
R313
L301
L300
SP+
SP–
R319
R336
R326
L306
TH300
R327
L307
R333
R328
C321
C314
+
Q309
L303
1
8
9
16
IC300
L305
L304
C333
C344
CN303
1
4
MON
LAMP
PTT
GND
J72-0517-22
J72-0517-22
GND
CS
SID
VCI
LEDK
VCC
SCLK
SOD
LEDA
NC
CN304
1
10
CS
R337
C323
C324
C325
C322
C315
+MIC
MIC
+
D319
R301
C339
R339
C332
R312R311
L309
L308
MSW
D300
R340
R341
PTT
R338
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
TK-480/481 PC BOARD VIEWS
43 44
DISPLAY UNIT (X54-3210-XX) -10 : K -11 : K2 Foil side view
Component side
Foil side
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Ref No. Address
IC300 7I
IC301 8G
Q300 5P
Q301 6H
Q302 11R
Q303 10R
Q304 9H
Q305 9H
Ref No. Address
Q306 11H
Q307 11H
Q308 7H
Q309 9J
Q310 7G
D300 6M
D302 9G
D303 9I
Ref No. Address
D304 10H
D315 9G
D316 9G
D317 9F
D318 9F
D319 5L
D320 6I
D321 4P