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
34
6
1
34
6
G
SD
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
18
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
BCE
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
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