
SCHEMATIC DIAGRAM
TK-2180
53
J
I
H
G
F
X57-693 2/8
R728
1k
CP503
1k*2
CP515
1k*2
R428
120k
OPT1
CP507
1k*2
CP601
1k*2
TCLK/DTRDO
RD
R525
1k
5UC
R729
1k
R524
0
L503
S400
ORG
R780
10k
CP603
1k*2
A[7]
PTT
R726
330
A[14]
D[1]
CP518
47k*2
R784
47k
CP604
330*2
C734
22p
CP608
100*2
R734
1k
A[12]
C516
0.01u
CP510 1k*2
EN4
MANDN
A[6]
A[1]
R523
0
D[2]
D[6]
OPT3
R505
47k
A[3]
PCK
RFD/FD(12)
D[5]
C757
4700p
CP519
10k*2
R510
47k
A[16]
CP500
1k*2
R514
4.7k
R769
1k
EN3
TXD1
OPT5
CP505
1k*2
CP605
330*2
C507
1u
DTRLOAD
RSSI
R509
47k
EN2
CP606
1k*2
CP514
1k*2
SSW
EN1
A[5]
R508
47k
A[9]
SSM3K15TE
Q502
R528
470k
R500
0
PLE
R526
0
OPT2
STSW
R735
47k
CP513
1k*2
A[15]
A[13]
TDATA(10)
R513
1k
R731
1k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
RXD1
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
DI/O
CP511
330*2
R733
1k
R504
0
STD
CP509
1k*2
C755
4700p
IC505
TC7W53FK
1
2
3
4
5
A
6
CH1
7
CH0
8
VCC
R732
1k
C508
1u
CP501
1k*2
CP607
100*2
A[10]
CP512
1k*2
R730
1k
CP504
1k*2
CP508
1k*2
R725
330
CP502
1k*2
R724
1k
R507
470k
AM
CP521
1k*2
R511
0
CP602
1k*2
CP517
1k*2
A[4]
R527
47k
A[18]
A[11]
A[2]
C505
1u
D[4]
C506
1u
LD
R512
47k
R515
47k
A[17]
A[8]
L502
PF
OPT4
WR
D[3]
R770
1k
CP516 10k*2
CSO
CP506
1k*2
R758
47k
OPT6
R506
47k
DIR(14)
D[7]
A[0]
D[0]
CLK
B
CPU_DGND
5M_CHARG
MIC
VOL
SAVE
5R
DT
LEDG
AUX_Key
SBC
SPSTB
S_DET
5C
CPU_DGND
CPU_VCC
5T
PTT
INT SW
LEDR
5TC
KI2
KI1
BATT_LEVEL
S DETECTOR
LEDR
KI2
LCDRS
SPSTB
5CNS
RESET
5RC
INT
PSW
5M
LSW
5TC
SBC
KI1
LEDG
CPU_VCC
CoMMoN
INH
VEE
GND
DGND
MMUTE
AU
X
TXD
RXD
AFD
A
T
AFDIO
AFDIR
DTRLO
AD
AFSTD
LSW
RD
Y
ALE
HOLD
HLD
A
EN4
EN3
EN2
EN1
BCLK
RD
BHE
WR
APCSW
DSW
5UC
VREF
AVCC
SBC
5RC
5TC
APC/TV2
HSDO
STSW
RTCL/EEPCL
HSDIN
MAN-DN IN
RTDT/EEPDAT
BYTE
CNVSS
DMUTE
AM2
RESET
XOUT
DGND
XIN
VCC1
NMI
PSW
INT
INTRA
SHIFT/MODEL
BEEP
SPSTB
VCO ADJ
LEDR
LEDG
DSTB
LSDO
KEY1
KEY2
TXD1
VCC1
IC502
30625MGP-169GP
MICROPROCESSOR
BTSE/VOX
LCDRST
LCDCS
CS0
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
UL
PLE
PCK
NC
OPT6
VCC2
A8
DGND
A7
A6
A5
A4
A3
A2
A1
A0
PTT
AFRTM
TCLK/DTRDO
SAVE
T/R
AM1
LCDRS
SSW
D7
D6
D5
D4
D3
D2
D1
D0
DT
CK
WN
OPT1
OPT2
OPT3
OPT4
OPT5
BA
TTSEL/V
O
X
THP/VCO
ADJ
VO
L
PF
ASQ
RSSI
BA
TTL
VL
A
GND
LSDIN
W/N
AM2
LSDIN
RXD
CPU_DGND
5M
5RC
5M_CHARG
ASQL
B
DT
HSDOUT
DSTB
TXD
5CNS
CLK
APC/TV2
THP/VCOADJ
T/R
RXD1
5R
MIC
INTRA
DMUTE
LSW
BEEP
XIN
XOUT
RTDT
HSDIN
BSHIFT
LSDO
CPU_VCC
DSW
APCSW
VOX
5T
MMUTE
5C
R:0V
T:0.13V
R:7.49V
T:7.48V
R:0V
T:0.13V
AUX OFF:4.95V
ON:0V
TX-RX UNIT (X57-6930-10)