Icom IC-M803 - Page 69

11-3
• MAIN UNIT (1/9)
0.1
C4005
0.01
C4104
47K
R4030
0.1
C4011
47K
R4102
10K
R4028
0.1
C4010
1K
R4109
47K
R4036
47K
R4041
GRX
47K
R4104
RXPC
0.1
C4003
LRB706F
D4103
DTRM
0.1
C4009
0.01
C4103
NMRS
1K
R4106
RNMEAO
1K
R4108
DNMEAI
0.1
C4004
RNMEAI
0.1
C4008
1
C4101
LRB706F
D4074
R4051
220
VDL
R4094
1K
R4052
220
DIDL
THML
R4053
220
0.1
C4007
FIDL
R4054
220
PFIDL
R4055
220
RPPS
LRB706F
D4024
R4056
220
10
R4011
L10S
LRB706F
D4023
1K
R4083
R4057
220
0.001
C4021
0.01
C4161
L9S
LDTC143ZE
Q4022
LDTA114YE
Q4072
L8S
LRB706F
D4071
0.1
C4051
100
R4021
L7S
LDTA114YE
Q4021
47K
R4084
L4075 100U
100
R4035
L6S
L5S
L4S
100
R4049
C4071
0.1
C4080
0.0047
0
R4181
L3S
AGND
L4072 100U
L2S
C4078
0.1
R4071 4.7
MPZ2012S101A
EP4073
L1S
AFO
L4071 100U
0.1
C4076
J4071
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
0.1
C4105
J4181
1
2
3
4
5
6
7
8
9
10
11 12
NJM3403AV
IC4072
2
3
1
100
R4110
NJM2904CRB1
IC4022
V+
8
GND
4
NJM3403AV
IC4072
6
5
7
0.1
C4042
C4079
0.0047
NJM3403AV
IC4072
9
10
8
H3R3V
LRB706F
D4072
NJM3403AV
IC4072
V+
4
GND
11
MPZ2012S601A
EP4184
LDTC143ZE
Q4071
0.1
C4072
C4082
0.1
HV
NJM2904CRB1
IC4021
V+
8
GND
4
J4161
14V
100
R4048
MPZ2012S601A
EP4181
C4074
0.1
AFE
EALC
0.1
C4041
C4073
0.1
C4081
0.1
MPZ2012S601A
EP4182
3R3V
AAFE
MPZ2012S601A
EP4183
R4074 1K
A5V
FMODG
MPZ2012S331A
EP4188
L4076
100U
8V
FMOD
470 CE-LX
C4075
LRXD
0.1
C4083
R4075 220
GTX
R4076 220
150
R4161
GRESL
R4077 220
L1SS400
D4141
PWRSR
R4078 220
4.7K
R4144
R4079 220
33K
R4143
R4080 220
15K
R4142
R4081 220
L2SC4081
Q4141
0.001 C4084 0.001 C4085
LDTA114YE
Q4161
4.7K
R4141
0.001 C4086
J4141
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
L4144
100U
MPZ1608S601AEP4001
0.001 C4087
0.1
C4012
0.001 C4088
MPZ1608S601AEP4002
10K
R4040
18K
R4029
0.001 C4089
L4141
100U
33K
R4045
33K
R4024
0.001 C4090
C4146
0.1
C4144
0.1
56K
R4037
47K
R4022
4.7K
R4107
33K
R4038
C4143
0.1
1K
R4105
LRB706F
D4102
C4145
0.1
0.001
C4035
100
R4046
L1SS400
D4035
L1SS400
D4142
330
R4025
47K
R4148
2.2K
R4032
15K
R4146
0.1
C4013
L2SC4081
Q4142
22K
R4145
4.7K
R4147
0.01
C4024
KEYIN
0.01
C4038
AMOD
2.2K
R4047
TRAS
AAF
1K
R4086
LTXD
FORLP
PDIDV
1M
R4087
DID1V
10K
R4162
TCON
J4051
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
NJM2904CRB1
IC4021
2
3
1
DID2V
15K
R4043
FID1V
10
R4006
330
R4039
FID2V
10
R4002
4.7K
R4042
FID3V
10
R4007
FID4V
10
R4001
ASENI
10K
R4026
LDTC143ZE
Q4023
10
R4008
REFLP
10
R4004
47
R4031
TXS
10
R4009
FORL
10
R4003
REFL
10
R4010
NJM2904CRB1
IC4021
6
5
7
FANV
10
R4005
ESTA
0.1
C4001
LRB706F
D4101
0.1
C4006
56K
R4023
47K
R4101
IC4072
NJM3403AV
13
12
14
47K
R4103
0.1
C4002
EKEY
47K
R4085
0.1
C4091
MPZ2012S101AEP4074
MPZ2012S101A
EP4141
MPZ2012S101A
EP4142
MMZ1608Y102BT
EP4072 R4082 1K
MMZ1608Y102BT
EP4071
R4072
1K
62783G
IC4002
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
62783G
IC4001
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
TC7WH14FK
IC4051
1
2
3
4
5
6
7
8
TC7WH14FK
IC4071
1
2
3
4 5
6
7
8
1000 EEE-FT
C4181
1000 EEE-FT
C4182
MPZ2012S331A
EP4185
MMZ1005S601CT
EP4190
MMZ1005S601CT
EP4191
68KR4061
LDTA114YE
Q4062
22K
R4064
S-80845CNMC
IC4061
1
OUT
2
VDD
3
VSS
4
NC
5
CD
100K
R4063
22K
R4062
0.001
C4061
1K
R4065
150K
R4066
L2SC4081
Q4061
TPCF8107
Q4063
1
2
3
4 5
6
7
8
10
C4023
10
C4037
10
C4102
MPZ2012S331A
EP4192
1k
R4111
100k
R4112
100k
R4113
390k
R4114
220
R4116
47k
R4115
56k
R4067
NJM2904CRB1
IC4022
6
5
7
NJM2904CRB1
IC4022
2
3
1
L1SS400
D4021
SHORT1005
CP4141
SHORT1005
CP4142
J4001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
MPZ1608S101A
EP4051
0.1
C4052
MPZ1608S101A
EP4052
MPZ1608S601A
EP4053
0.1
C4053
0.1
C4054
DSAF
DSEN
DSAFE
DSMD
DSMDE
R4090
47k
R4093
82k
100
R4091
0.01
C4092
L2SC4081
Q4073
10k
R4095
DRIVE
DRIV
470
R4182
470
R4183 220U
L4182
220U
L4183
33k
R4044
R4092
82k
2SCR553P5
Q4162
L1S
L2S
L3S
L4S
L5S
L6S
L7S
L8S
L9S
L10S
REFL
FORL
TXS
GRX
GTX
GRESL
RNMEI
DNMEI
RSS
RNMEO
NMR
DTR
RPC
VDL
DIDL
FIDL
RPPS
L10S
L9S
L8S
L7S
L6S
L5S
L4S
L3S
L2S
L1S
FORL
REFL
RPPS
TXSESTA
TCON
3R3V
3R3V
KEYS
STAT
THRM
PFIDL
EKEY
HV
HV
HV
H3R3V
H3R3V
H3R3V
H3R3V
A5V
A5V
A5V
DSEN
DSMDE
DSMD
DSAFE
DSAF
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
14V
14V
14V
14V
14V
14V
8V
MAIN UNIT(9/9)
MAIN UNIT(2/9)
[ACC]
[EXT-SP]
MAIN UNIT(5/9)
MAIN UNIT(5/9)
SPO
SPE
NC
13.6V
CWK
EALC
SEND
AMOD
AGND
AAF
FL4M
FOR
FL10M
REF
FL3M
GND
FL7M
FL2M
FL6M
S13V
GND
FL5M
GND
FL1M
FL8M
FL9M
TO FILTER UNIT
TO CONNECT UNIT
TO LOGIC UNIT
MAIN UNIT(8/9)
MAIN UNIT(8/9)
RXD
GND
TXD
FMODG
HV
FMOD
FAFG
HV
GND
FAF
MAIN UNIT(5/9)
MAIN UNIT(5/9)
MAIN UNIT(5/9)
MAIN UNIT(5/9)
MAIN UNIT(9/9)
MAIN UNIT(5/9)
GND
GND
GND
GND
DSEN
DSAF
DSAFE
DSMD
DSMDE
GTX
GRX
GRESL
GND
GND
GND
GND
GND
RPC
DTR
NMR
RNMEO
RSS
DNMEI
RNMEI
GND
GND
MAIN UNIT(5/9)
MAIN UNIT(5/9)
MAIN UNIT(5/9)
MAIN UNIT(9/9)
PHV
GND
P8V
TO PA UNIT
PHV
GND
PDICL
GND
GND
GND
THRM
ANTC
KEYS
PFICL
STAT
PFID1V
P14V
P14V
P14V
PDID2V
PDID1V
PFID2V
P14V
PFANV
PPID1V
PFID4V
PFID3V
P14V
PON
P14V
P14V
MAIN UNIT(5/9)
MAIN UNIT(5/9)
MAIN UNIT(8/9)
H3R3V
A5V
NC
14V
MAIN UNIT(3/9)
6.8
0
0
0.7
0
3.2
Measuring condition: (unless otherwise noted)
• Frequency: 12.23 MHz
• Mode: J3E (USB)
• RX: No signal is received.
• TX: No modulation signal is applied.
• Waveforms are measured by
an oscilloscope.
Voltage notation:
RX
Unit: Volt
TX
RX
HV
HV
14V
14V
8V
8V
A5V
A5V
H3R3V
H3R3V
3R3V
3R3V
HV
14V
14V
14V
8V
A5V
A5V
H3R3V
H3R3V
H3R3V
HV
HV
3R3V
3R3V
3R3V
8V
8V
Explanatory notes
TX Line
RX Line
Voltage Line