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A
B
C
D
TK-3118
PC BOARD VIEW / PC 板视图
1
2
TX-RX UNIT (X57-6243-00) (B/3)
Component side view
R
e
. f
N
. o
A
d
d
e r
s s
C I
3
0
0
I 7
C I
3
0
2
1
0
G
3
C I
3
0
3
5
E
C I
3
0
4
6
E
C I
3
0
6
3
G
Q
3
0
3
7
G
Q
3
1
5
1
2
E
Q
3
1
6
5
F
4
Q
3
1
7
1
0
H
Q
3
1
8
1
0
F
Q
3
2
0
1
0
J
Q
3
2
4
1
I 1
D
3
0
4
3
M
D
3
0
5
1
3
M
D
3
0
9
1
2
H
5
6
7
8
9
10
11
Component side
Pattern 1
12
Pattern 2
Pattern 3
Pattern 4
Foil side
13
45
14
E
F
G
H
TX-RX UNIT (X57-6243-00) Component side view
R421
8
7
IC306
+
C367
14
1
R396
R423
R404
C363
C362
C312
R415
1
5
IC303
25
3
4
26
R338
R346
1
5
IC304
3
4
Q303
16
V1
C421
V2
V3
V4
H1
H2
H3
H4
50
H5
SB
51
LED
MIC
E
E
SP
SP
R332
1
Q317
VR301
R372
C375
DQT BAL
C333
VR303
C354
C408
DTMF DEV
L305
R379
R378
C343
R464
D309
C359
R459
PTT
R349
C412
+
C416
J72-0777-22 B/3
I
J
K
L
R390
+
C386
R395
C360
COM2
COM1
R471
R319
COM0
R320
R331
SEG0
R321
SEG1
1
SEG2
100
SEG3
SEG4
SEG5
SEG6
SEG7
IC300
SEG8
SEG9
SEG10
SEG11
SEG12
76
75
SEG13
SEG14
SEG15
SEG16
R342
Q320
SEG17
SEG18
SEG19
+
SEG20
TXD
REM
SEG21
SEG22
SEG23
SEG24
SEG25
R466
C418
L306
46
M
N
O
P
D304
R339
DTA144EE
DTC114EE
DTC114YE
DTC144EE
2SC4738
B
E
2SK1588
D
G
2SK1824
LCD
D
R354
G
R352
PST9124NR
PST9145NR
1
2
3
4
D305
Q
R
S
AT24C16N-10SI
E
B C
NJM2902V
C
8
14
7
1
S
24LC16BT-I/SN
5
8
4
1
S
M38267M8L271GP
51
50
75
26
76
25
1
100
5
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