SCHEMATIC DIAGRAM
TK-2202L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
QTVCO
25
DTRLOADN
26
1/2OSC
27
PTT
28
QTTCXO
29
TXD
30
RXD
31
GND
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
EN5
47
EN4
48
EN3
49
EN2
50
EN1
51
OPTDET
52
AF_CONT
53
54
55
56
57
58
59
60
VCC
61
62
VSS
63
GND
64
GND
65
66
67
68
69
70
71
72
LEDTX
73
LEDRX
74
PF1
75
PF2
76
SIM1
77
SIM2
78
79
80
5T_C
81
5R_C
82
5C_C
83
84
85
86
87
88
BA
TT
89
RSSI
90
B
USY
91
VO
X
92
QT/DQT_IN
93
TH_DET
94
A
VSS
95
96
VREF
97
A
VCC
98
99
MIC_MUTE
100
R357
0
R420
47k
1
A0
2
A1
3
A2
4
GND
5
6
7
8
L17
27n
R435
47k
C63
100p
C51
1000p
R423
0
R304
560k
R355
10k
C64
4p
TC1
10p
C49
100p
R39
150
C62
5p
C81
15p
C68
470p
C435
5p
R308
0
L404
C45
1u
C72
0.1u
C84
1000p
L22
L18
220n
R422
1k
C55
120p
R51
10
R417
47k
C76
1000p
R36
270k
L19
220n
C75
1000p
C67
5p
C78
33p
L24
CP405
1Kx2
C60
1p
L14
220n
R26
10k
C47
100p
R418
47k
C302
0.01u
L12
C83
1000p
L16
39n
R22
0
R426
0
L23
39n
C69
470p
1
VCC1
2
IN
3
IN
4
GND
5
6
7
8
L20
3.3u
R41
150k
C74
0.5p
Q5
DTA143TE
R23
10k
L50
L403
R338
2.2k
R25
22k
C82
1000p
R419
47k
C65
5p
C432
5p
R37
100
C431
0.01u
C52
180p
R421
1k
C901
1u
C902
1u
D4
1SV325F
D7
1SV325F
D10
1SV278F
2SK1830F
Q407
QTTCXO
PLL_UL
PLL_STB
SIDE2
LEDRX
PLL_DAT
LEDTX
PLL_CLK
SIDE1
BEAT SHIFT SW
OPTDET
AF_CONT
RESET
VCO 1/2 DIVIDER
B
DC SW/TX VCO
3.6864 MHz CLK
5C
PTTSW
5M
5C_C
5R_C
5T_C
VCC
VSS
5R
CURRENT
STEERING
VSS
MODULATOR
CV
VCO/RX
VCO/TX
VCC
EN5
EN4
SP1
EN3
EN2
SB
EN1
SP2
INT
5T
OSCIN
IC405
30622MCAC02GU
MICROPROCESSOR
APCSW
DCSW
TX_W/N
RX_SW
TX_SW
GND
PLL_UL
PLL_STB
PLL_D
A
T
PLL_CLK
VCC
RX_W/N
PCTV
DTMF
EEPDAT
EEPCLK
BYTE
RESET
XOUT
VSS
XIN
VCC
VCC
INT
TCLK/DTRDO
RDF/FD
SCLK
DI/O
TDATA/DTRCLK
DIR
STD
X2
7.3MHz
L78-1414-05
D301
RB706F-40
DETECTOR
MOD
DI/O
DIR
STD
DTRLOADN
SCLK
TH_DET
TDATA/DTRCLK
B
APCSW
5C
5R
TX_W/N
TCLK/DTRDO
XIN
PCTV
TXD
5M
AMP3O
MIC_MUTE
EXTLIMIN
5T
QT/DQT_IN
RX_W/N
RSSI
OSCIN
OPTDET
PTTSW
DCSW
BUSY
SP1
SP2
AF_CONT
RDF/FD
SB
SDA
SCL
WP
VCC
SW1
SW2
OUT
VCC2
GND
BSHIFT
W/N SW/TX
2SK1824-A
Q901
2SC4617(S)
Q8
RIPPLE FILTER
Q7
DTA143TE
DC SW/RX VCO
C90
1000p
C71
0.1u
C58
6p
D5
1SV325F
C32
0.1u35
D4,7
FREQUENCY
CONTROL
/TX VCO
L10
180n
L13
220n
C53
0.5p
C54
4p
C57
1.5p
C59
1.5p
2SK508NV(K52)
Q4
R40
100
C73
0.5p
(B)
L21
3.3u
2SC5108(Y)F
Q6
RF BUFFER AMP
R43
100
IC2
UPB1509GV
R44
1k
R45
3.3k
R46
3.3k
TX MODULATION
VCO OSCILLATION (RX)
VCO OSCILLATION (TX)
C39
3300p
C41
6800p
R30
12k
R31
560k
R34
4.7k
L11
100n
D9
1SV325F
D5,9
FREQUENCY
CONTROL
/RX VCO
TC2
10p
C61
4p
C66
5p
R38
180
2SK508NV(K52)
Q3
R42
4.7k
D11
MA2S111-F
C80
470p
C77
470p
C79
10u6.3
R902
4.7k
R901
4.7k
IC406
BR24L08F-W
EEPROM
R305
100k
C304
0.22u
R354
10k
C351
0.01u
R365
47k
C352
0.01u
C354
0.1u
C434
3p
C433
3p
R447
4.7k
R404
470k
C415
470p
R406
470k
R416
47k
R415
47k
2SK1830F
Q408
BEAT SHIFT SW
R301
47k
R424
47k
R425
47k
R47
47
C70
470p
R35
270k
R:0.60V
T:4.95V
BSHIFT ON:4.95V
OFF:0V
4.74V
4.0V
R:4.97V
T:0.59V
3.74V
0.72V
T:3.42V
4.96V
R:3.46V
R:3.70V
T:3.57V
F
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TX-RX UNIT (X57-6870-21)
X57-687 2/4