![background image](http://html1.mh-extra.com/html/icom/ic-f1721d/ic-f1721d_service-manual_4203161045.webp)
11 - 3
IC20
HD64F2239TE16
[USA-02], [USA-03]
PE5/D5
PE6/D6
PE7/D7
PD0/D8
PD1/D9
PD2/D10
PD3/D11
PD4/D12
PD5/D13
PD6/D14
PD7/D15
CVCC
PC0/A0
VSS
PC1/A1
PC2/A2
PC3/A3
PC4/A4
PC5/A5
PC6/A6
PC7/A7
PB0/A8/TIOCA3
PB1/A9/TIOCB3
PB2/A10/TIOCC3
PB3/A11/TIOCD3
PB4/A12/TIOCA4
PB5/A13/TIOCB4
PB6/A14/TIOCA5
PB7/A15/TIOCB5
PA0/A16
PA1/A17/TXD2
PA2/A18/RXD2
PA3/A19/SCK2
P10/TIOCA0/A20
P11/TIOCB0/A21
P12/TIOCC0/TCLKA/A22
P13/TIOCD0/TCLKB/A23
P14/TIOCA1/IRQ0
P15/TIOCB1/TCLKC
P16/TIOCA2/IRQ1
P17/TIOCB2/TCLKD
AVSS
P97/DA1
P96/DA0
P47/AN7
P46/AN6
P45/AN5
P44/AN4
P43/AN3
P42/AN2
51
P41/AN1
52
P40/AN0
53
VREF
54
A
VCC
55
MD0
56
MD1
57
OSC2
58
OSC1
59
RES
60
NMI
61
STBY
62
VCC
63
XT
AL
64
VSS
65
EXT
AL
66
FWE
67
MD2
68
PF7/
69
PF6/AS
70
PF5/RD
71
PF4/HWR
72
PF3/L
WR/ADTRG/IRQ3
73
PF2/W
AIT
74
PF1/BA
CK/B
UZZ
75
PF0/BREQ/IRQ2
P30/TXD0
P31/RXD0
P32/SCK0/SDA1/IRQ4
P33/TXD1/SCL1
P34/RXD1/SDA0
P35/SCK1/SCL0/IRQ5
P36
P77/TXD3
P76/RXD3
P75/TMO3/SCK3
P74/TMO2/MRES
P73/TMO1/CS7
P72/TMO0/CS6
P71/TMRI23/TMCI23/CS5
P70/TMRI01/TMCI01/CS4
PG0/IRQ6
PG1/CS3/IRQ7
PG2/CS2
PG3/CS1
PG4/CS0
PE0/D0
PE1/D1
PE2/D2
PE3/D3
PE4/D4
IC21
TC7MET374AFK
[USA-02], [USA-03]
O-CTRL
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
11
CLK
12
5Q
13
5D
14
6D
15
6Q
16
7Q
17
7D
18
8D
19
8Q
20
VCC
IC18 AK4550VT
[USA-02], [USA-03]
VCOM
AINR
AINL
VSS
VDD
DEM0
DEM1
SDT0
SDT1
LRCK
MCLK
SCLK
PWAD
PWDA
AOUTL
AOUTR
X6
CR-771
12.288 MHz
[USA-02], [USA-03]
1
VCON
2
GND
3
OUT
4
VCC
IC25
TC7MET541AFK
[USA-02], [USA-03]
G1
A1
A2
A3
A4
A5
A6
A7
A8
GND
11
Y8
12
Y7
13
Y6
14
Y5
15
Y4
16
Y3
17
Y2
18
Y1
19
G2
20
VCC
IC24
S-80928CNMC
[USA-02], [USA-03]
1
OUT
2
VDD
3
VSS
4
NC
5
CD
IC22
TC7S04F
[USA-02],
[USA-03]
1
2
3
4
5
IC28
HN58X2416TI
[USA-02], [USA-03]
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
IC13
NJM2115V
[USA-02], [USA-03]
IC33 XC6204B332M
[USA-02], [USA-03]
1
VIN 2
VSS 3
CE
4
NC
5
VOUT
IC31 XC6204B332M
[USA-02], [USA-03]
1
VIN 2
VSS 3
CE
4
NC
5
VOUT
IC32 R1114N151B
[USA-02], [USA-03]
1
VDD 2
GND 3
CE
4
NC
5
VOUT
IC17
TC7SH32FU
[USA-02], [USA-03]
1
2
3
4
5
R171
4.7k
R172 47k
C216 0.01
[USA-02],
[USA-03]
C186
0.01
C182 0.01
[USA-02],
[USA-03]
C147 0.01
[USA-02],
[USA-03]
C146
0.01
C181
0.01
C178
0.01
R115
4.7k
C236
0.01
C237
0.01
C238 0.1
[USA-02],
[USA-03]
C275
0.1
R229 3.3k
R230 3.3k
R231 3.3k
R233 3.3k
R228 5.6k
R227 5.6k
R226 5.6k
R225 5.6k
R224 5.6k
C337
0.1
[USA-02],
[USA-03]
R290
10k
[USA-02],
[USA-03]
C311 0.1
C314
0.1
[USA-02],
[USA-03]
C310
4.7
[USA-02],
[USA-03]
C313
0.1
[USA-02],
[USA-03]
R201
47
C254
0.1
C253
0.1
R199
47
C251
0.1
C273
0.001
[USA-02],
[USA-03]
C272
1
[USA-02],
[USA-03]
C215
10
C213
10
C214
0.1
C180
0.1
R167
10k
R168
JPW
L16 1
µ
H
[USA-02], [USA-03]
C179
0.0022
C177
0.1
R142
470
R141
100
C176
47p
C212 0.1
C210
0.001
C209
47p
R164
100
R166 1k
R165 3.3k
R140
5.6k
R138 4.7k
C315
0.01
[USA-02],
[USA-03]
C175
0.1
R116 20k
R111
20k
R110
20k
R110–R116,
C140–C146
[USA-02], [USA-03]
C142
470p
C141
270p
C145
82p
C143
47p
R112
100
C140
10
C144
0.1
R145
8.2k
C185
0.1
C184
10
R144
22
R146
8.2k
C183
0.1
R122
47
R121
15k
C148
7p
C152
0.1
R124
4.7k
R118
4.7k
R117
1.8k
R123
5.6k
R120
100
R119
1.5k
C150
0.1
C119
0.1
C151
0.1
C149
10
R96
1.5k
C98
0.1
C100
0.1
R222
47k
C367
0.1
C368
0.1
C372
0.1
C338
0.1
C339
0.1
C343
0.1
R192 47k
R204
47k
L20 1
µ
H
[USA-02],
[USA-03]
R169 4.7k
[USA-02],
[USA-03]
R170 4.7k
[USA-02], [USA-03]
R268 47k
R273 100
R235 100
R234 100
R236 100
R205
100
R206
100
R207
100
C318 47p
C317 47p
C316 47p
C319
47p
C320
47p
C278 47p
C277
47p
C276
47p
CP12
CP13
CP14
CP15
CP16
CP18
CP19
L45
1
µ
H
[USA-02],
[USA-03]
FI3
CFWC450E
[USA-02],
[USA-03]
I
O
R232 3.3k
R272 100
R271 100
R270 100
R269 100
C370
4.7
C371
4.7
C369
4.7
C341
10
C342
10
C340
10
Q3
2SC4215
[USA-02],
[USA-03]
R67
100
R68
4.7k
R69
3.3k
R408 1k
[USA-02], [USA-03]
IC16
AD7476ARTZ
[USA-02], [USA-03]
1
VDD
2
GND
3
VIN
4
SCLK
5
SDATA
6
CS
R298
2.2
IC15
NJM2711F
[USA-02],
[USA-03]
1
2
3
4
5
D61
MA2S111
[USA-02],
[USA-03]
D62
MA2S111
[USA-02],
[USA-03]
IC41
TMS320VC5416PGE120
[USA-02], [USA-03]
1
CVSS
2
A22
3
CVSS
4
D
VDD
5
A10
6
HD7
7
A11
8
A12
9
A13
10
A14
11
A15
12
CVDD
13
HAS
14
D
VSS
15
CVSS
16
CVDD
17
HCS
18
HR/W
19
READ
Y
20
PS
21
DS
22
IS
23
R/W
24
MSTRB
25
IOSTRB
26
MSC
27
XF
28
HOLD
A
29
IA
Q
30
HOLD
31
BIO
32
MP/MC
33
D
VDD
34
CVSS
35
BDR1
36
BFSR1
37
CVSS
38
BCLKR1
39
HCNTL0
40
DVSS
41
BCLKR0
42
BCLKR2
43
BFSR0
44
BFSR2
45
BDR0
46
HCNTL1
47
BDR2
48
BCLKX0
49
BCLKX2
50
CVSS
51
HINT
52
CVDD
53
BFSX0
54
BFSX2
55
HRDY
56
DVDD
57
DVSS
58
HD0
59
BDX0
60
BDX2
61
IACK
62
HBIL
63
NMI
64
INT0
65
INT1
66
INT2
67
INT3
68
CVDD
69
HD1
70
CVSS
71
BCLKX1
72
CVSS
73
BFSX1
74
BDX1
75
D
VDD
76
D
VSS
77
CLKMD1
78
CLKMD2
79
CLKMD3
80
HPI16
81
HD2
82
T
OUT
83
EMU0
84
EMU1/OFF
85
TDO
86
TDI
87
TRST
88
TCK
89
TMS
90
CVSS
91
CVDD
92
HPIENA
93
D
VSS
94
CLK
OUT
95
HD3
96
X1
97
X2/CLKIN
98
RS
99
D0
100
D1
101
D2
102
D3
103
D4
104
D5
105
A16
106
D
VSS
107
A17
108
A18
109
A19
110
A20
111
CVSS
112
DVDD
113
D6
114
D7
115
D8
116
D9
117
D10
118
D11
119
D12
120
HD4
121
D13
122
D14
123
D15
124
HD5
125
CVDD
126
CVSS
127
HDS1
128
DVSS
129
HDS2
130
DVDD
131
A0
132
A1
133
A2
134
A3
135
HD6
136
A4
137
A5
138
A6
139
A7
140
A8
141
A9
142
CVDD
143
A21
144
DVSS
R223 47k
R139 22k
R291 47k
[USA-02], [USA-03]
R292 47k
[USA-02], [USA-03]
C187
0.0022
C312 0.01
[USA-02],
[USA-03]
C311
[USA-02],
[USA-03]
CP47
CP48
CP49
CP50
CP51
R437 47k
R438 47k
R441 1k
[USA-02], [USA-03]
CP54
IC19 NJM2711F
[USA-02], [USA-03]
1
2
3
4
5
C531
5p
C532
0.1
C533
0.1
R446
1k
R221
2.2k
R447
10k
R448
10k
C252
10p
R202
47k
R203
47k
R114
100
R113
68k
D1
D2
D3
D4
D5
D0
BFSR0
BDR0
D6
D7
HD6
HDS2
HDS1
HD5
HD4
HD1
HBIL
HD0
HRDY
HINT
HCNTL1
HCNTL0
D7
D6
D5
D4
D0
D1
D2
SIO
CCSI
SCKO
PTTIN
BUSYD
PTTOT
CCSI
CIRQD
PTTIN
PT
TOT
BCLKX1
BFSX1
BDX1
BDR1
BFSR0
BDR0
BCLKR0
B
USYD
D3
HD7
HAS
HR/W
HCS
HD7
HD3
HD2
HAS
HCS
HDS1
HDS2
HR/W
HBIL
HCNTL0
HCNTL1
HD7
HD6
HD5
RD
A
T
RCK
BFSX1
BDR1
TMS
TCK
TRST
TDI
TDO
EMU1
EMU0
TMS
TRST
TDI
3VAX
TDO
TCK
EMU0
EMU1
BCLKX1
BCLKX1
BDX1
BFSX1
BUSY
CSO
CCS
CCK
PTTI
CSID
IRQD
DPTT
DRMT
DMMT
D
AFON
RS
DMI
D
AFO
DAFO
RSSID
3VA
3VA
5V
DFIL
3VAX
3VAX
CCSI
5V
5V
CIRQD
SOO
3V
A
C_RES
MD2
DMO
TXD2
RXD2
5V
3VA
3VA
1.5VB
3VC
3VC
A/D
IF-FILTER
DIGITAL CPU
DIGITAL DSP
LINER CODEC
1.5VB
1.5VB
3VC
1.5VB
1.5VB
5V
5V
5V
5V
5V
5V
Tx Digi/Ana(X)
Rx Digi/Ana(Y)
OPT RMUT / CPU RMUT (Z)
5V
J3
2
4
6
8
10
1
9
7
5
3
J4
1615
14
13
12
11
10
9
8
7
6
5
4
3
2
1
17
30
29
28
27
26
25
24
23
22
21
20
19
18
PTTI
DPTT
RSSID
BUSY
CTSI
RTSI
DTXD
DRXD
VCC
DMMT
DAFON
DRMT
DAFO
CCS
IRQD
CSO
GND
GND
CSID
CCK
DFIL
5V
DMO
DMI
MD2
C_RES
TXD2
RXD2
3VA
R138–R143, R164–R168,
C175–C181, C209, C210,
C212–C215
[USA-02], [USA-03]
R143
10k
R144–R146,
C183–C187
[USA-02], [USA-03]
R171, C236
[USA-02],
[USA-03]
[USA-02],
[USA-03]
[USA-02],
[USA-03]
R199, R201–R204,
R221–R223, R446–R448,
C251–C254, C531–R533
[USA-02], [USA-03]
R205–R207, R224–R236
[USA-02], [USA-03]
R268–R273, R298,
R437, R438, C316–C320,
C338–C343, C367–C372
[USA-02], [USA-03]
R67–R69, R96, R117–R124,
C98, C100, C119, C148–C152
[USA-02], [USA-03]
C237
[USA-02],
[USA-03]
C275–C278
[USA-02], [USA-03]
IC-F1721D,
F1821D only
AF AMP
IC38
LA4425A
Q28
DTC144EU
Q29
DTC363EK
R36
1k
IC2
AK2346
1
AGNDIN
2
AGND
3
TXIN
4
TXINO
5
LIMLV
6
EXTLMIN
7
MOD
8
VSS
9
TCLK
10
TDATA
11
DI/O
12
RDF/FC
13
SCLK
14
DIR
15
XOUT
16
XIN
17
VDD
18
EXPOUT
19
RXAFIN
20
RXAF
21
RXLPFO
22
RXINO
23
RXIN
24
TEST
C1
47p
C2
47p
C26
47p
C27
47p
C47
47p
C46
47p
C28
47p
C76
0.001
R90
470
C111
0.1
C112
0.1
C90
0.1
IC1
NJM12902V
13
12
14
IC1
NJM12902V
9
10
8
IC1
NJM12902V
6
5
7
R52
22k
R39
22k
R40
22k
C59
0.039
C57
0.1
C58
0.01
C35
470p
R24
470k
R25
100k
C36
4.7
C7
0.001
R5
470
C13
1
C11
1
C10
0.001
C14
47p
C16
47p
C18
47p
C20
47p
C15
47p
C17
47p
C22
47p
C65
0.1
R42 33k
R43 82k
R54
47k
C77
0.1
C78
0.0012
R11
1k
C19
0.022
C37 180p
EP4
C62
0.001
X1
CR-765
3.6864 MHz
C63
22p
C38
22p
C61
0.0022
C64
0.1
R44
33k
R41
1M
R31 10k
C80
0.001
C93
0.1
R60
100k
C44
0.001
C45
0.001
C95
0.1
IC30
M62334FP
1
AO1
2
AO2
3
AO3
4
AO4
5
GND
6
SDA
7
SCL
8
VCC
R296
10k
R297
470
C365
0.1
R30
33k
R32
18k
C41
0.0022
C42
0.001
R4 68k
C79
0.1
IC9
NJM12902V
9
10
8
IC9
NJM12902V
13
12
14
IC9
NJM12902V
6
5
7
IC9
NJM12902V
2
3
1
R158
180k
R159
56k
R162
22k
R163
1k
R161
22k
R157
47k
R160
68k
R137
68k
R136
68k
R109
68k
R108
68k
C173
47p
C115
47p
R95
390k
R156
47k
R135
47k
R134
47k
R107
4.7k
C207
0.015
C172
0.1
C170
820p
C136
0.1
C138
47p
C206
0.001
R106
18k
Q7
DTC144EU
IC9
NJM12902V
V+
4
GND
11
C135
4.7
R92
33k
R93
27k
R94
27k
C109
0.1
C96
0.1
R12
3.3k
C21
0.1
R29
10k
C113
0.1
C114
0.1
R8 220k
C12 0.1
C66
0.1
R56
100k
C94
0.1
C110
0.1
CP7
CP8
IC42
BU4053BCFV
1
Y1
2
Y0
3
Z1
4
Z
5
Z0
6
INH
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
IC43
BU4053BCFV
1
Y1
2
Y0
3
Z1
4
Z
5
Z0
6
INH
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
R394
27k
C488
0.47
IC44
TA75S01F
1
2
3
4
5
R396
4.7k
R397
10k
C489
0.1
C490
0.1
IC45
BU4094BCFV
1
STR
2
D
3
CLK
4
Q1
5
Q2
6
Q3
7
Q4
8
GND
9
QS
10
Q’S
11
Q8
12
Q7
13
Q6
14
Q5
15
OE
16
V+
C491
0.1
R398
100k
R399
100k
CP30
CP31
CP32
CP33
CP34
R400
39k
R401
15k
C492
39p
CP35
CP36
CP37
R421 1M
R427
10k
D55
DAP202U
D64
DAP202U
R434
47k
R435
47k
C529
100
R53
47k
CP39
D51
DAP202U
D52
DAP202U
D65
MA2S111
C60
10
IC8
M62364FP
1
VIN1
2
VOUT1
3
VOUT2
4
VIN2
5
VDD
6
LD
7
CLK
8
DI
9
VIN3
10
VOUT3
11
VOUT4
12
VIN4
13
VIN5
14
VOUT5
15
VOUT6
16
VIN6
17
DO
18
VDAREF
19
RESET
20
GND
21
VIN7
22
VOUT7
23
VOUT8
24
VIN8
R91
15k
EP1
R449
68k
C208
270p
C171
470p
C174
68p
C137
0.0033
C139
47p
C116
330p
R6
33k
R7
33k
R9
18k
R10
18k
R55
120k
R62
120k
C92
180p
R26
470k
R27
15k
R28
15k
C39
0.0022
R395
33k
C535
470p
R3 100k
CP57
CP58
R45
33k
CP59
MRDF
MDIO
MTDT
MTCK
SCK
T1
DSD
A
D
AST
SCK
SSO
TENC
REF
BAL
TONE
MSCK
MIC
POSW
MFD
A
FMD
A
CENC0
CENC1
CENC2
DUSE
CDEC
T2
RL
V
A
TL
V
A
TENC
SIGNAL
BEEP
SENC
MOD
SQL
DET
D
AST
SCK
SSO
TENC
BAL
MOD
SQL
DET
DET
DET
DET
MCOT
T
ONE
SIG
BEPO
AFO
MIC
ARMT
DRMT
MMUT
AMMT
DMMT
CIRQ
IRQA
IRQD
VCC
VCC
VCC
VCC
DMO
PA
PMFM
MICA
SSO
SCK
EXOE
EXST
DAFO
DASW
DET
AFOUT
DMI
CSIA
CSID
CSI
MDIR
SDEC
RMT
O
RMUT
RMT
O
MICA
DET
DISC
CDEC
R17 1M
R18 1M
R19 1M
R14 1M
R15 1M
R16 1M
AFONO
BEPO
DISC
AFOUT
REM
CCS
IRQA
CSIA
CSO
CCK
AMMT
ARMT
GND
J2
R35 47k
R33 47k
C43
47p
C24
47p
R34 10k
SIGO
PMFM
NWC
DAST
BUSY
MCOT
MIC
APTT
OPT1
OPT2
OPT3
PTTI
C409
0.1
C465
0.001
C464
0.001
R365
10k
C439
470
1
2
3
4
5
R322
10k
C408
0.1
R324
22k
C410
0.1
C386
0.47
R300
10k
D34
MA2S111
R348
10k
D36
DAN202U
R321
1
R304
100
CP22
CP23
D53
MA2S111
R323
33k
AFONO
AFO
AFON
DAFON
VCC
VCC
CP26
C479
0.001
C480
47p
C467
47p
J5
J6
1
2
SP1
(IC-F1700
series only)
Yellow
Black
EXT SP
2
4
6
8
10
12
1
11
9
7
5
3
J1
C25
0.001
CP38
R20
100k
R445
100k
R444
33k
MMUT
CIRQ
CSI
R13
100k
CP1
D54
DAP202U
R402
100
PTTI
APTT
DPTT
PTT
O
1
2
3
4
5
6
7
8
9
10
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
39
40
41
42
43
44
45
46
47
48
49
50
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
HD4
HD3
HD2
HD1
HD0
HRDY
HINT
RS
RTSI
SCKO
SIO
SOO
CTSI
DTXD
DRXD
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
CUTO 2
VCCRF 3
VPRF 4
CPORF 5
GND 6
FINRF 7
FINRF 8
GND 9
OSCX 10
OSCIN 11
FO/LD 12
RF_EN
13 IF_EN
14 CLOCK
15 DATA
16 LE
17 GND
18 FINRF
FINIF
20 GND
21 CPOIF
22 VPIF
23 VCCIF
24 OUT1
C5
47p
C6
47p
C33
47p
C3
0.001
C48
0.001
C50
47p
C49
0.001
C31
0.1
2
3
1
C70
0.1
EP5
C75
0.001
R49
56
L1 1.8
µ
H
R1 10k
R2 270k
R48
470
C71
10p
C73
100p
C29
47p
L46
22nH
L47
22nH
C519
8p
C521
8p
C520
15p
R429
1.8k
R21
1M
X2
CR-794
15.3 MHz
1
VCON
2
GND
3
OUT
4
VCC
C32
10
C534
0.0047
R22 330k
C30
68p
5V
5V
5V
5V
5V
VCC
MFDA
AFO
POSW
FMDA
MIC
CPU5
CPU5
CPU5
CPU5
CPU5
5V
5V
5V
8V
8V
5V
8V
5V
5V
8V
8V
8V
from
FRONT
unit J1
OPTIONAL
unit
UT-109
UT-110
UT-111
Rx/PA(Y)
PM/FM(X)
De-emphasis(Z)
IC4
LMX2352TM
19
R23
1k
C4
0.1
IC1
NJM12902V
D2
DAN202U
R59
22k
R88
22k
R89
4.7
D4
DAN202U
C88
0.1
C89
0.1
C108
0.1
IC1
NJM12902V
V+
4
GND
11
C34
10p
C53
0.01
C54
56p
C51
0.01
C52
0.1
C55
4p
C56
7p
L2
0.22
µ
H
L3
0.82
µ
H
Q1
2SC4116
R37
1.2k
R38
680k
R50
4.7k
R87
4.7k
Q45
DTC144EU
R426
4.7
C526
0.1
FI1
CFWM450E
I
O
FI2
CFWM450G
I
O
Q2 DTA114EU
TEMP
BAL
REF
UNLK
SCK
SSO
PLST
LVIN
OUT0
NWC
PLL
REF
5V
*3 MULTI
8V
5V
8V
C440
470
OPV1
OPV2
OPV3
OPT3
OPT2
OPT1
SIG
BUSY
AUX
MCIN
MCOT
PTTO
PTTI
MOWN
CP2
IC6
LC73872M
C67
0.1
C81
0.1
X3
CR-563
3.579545 MHz
R46
1M
R47
10
C68
15p
C69
18p
1
INPUT
2
NC
3
PD
4
OSCO
5
OSCI
6
NC
7
VSS
8
LOAD
9
SD
10
ACK
11
STD
12
EST
13
NC
14
VDD
R451
100k
DDSD
DDST
DISC
DTPD
DD
A
C
BCLKR0
∅
REM
5V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
16
17
18
19
20
21
22
23
24
25
26
27
28
29
5V
TEMP
LVIN
8V
CPORF
FINRF
5V
REF
MIX
IF
FIL
B
A
8V
CPU5
5V
AFO
VCC
COMMON LINE
MAIN UNIT
VOLTAGE LINE
TX LINE
RX LINE
Explanatory notes
3.3 V
1.5 V
3.3 V
3.3 V
3.3 V
12.3 MHz
1.2 Vp-p
3.3 V
5.0 V
3.3 V
1.5 V
3.3 V
3.2 V
15.3 MHz
950 mVp-p
AF ON 5.0 V
OFF 0 V
11-3 MAIN UNIT