Icom IC-M803 - CONNECTIONS AND INSTALLATION; Connection Procedures

11-11
10K
R5911
NJM2058V
IC5911
6
5
7
NJM2058V
IC5921
13
12
14
2.2M
R5942
1K
R5981
0.001
C5921
56K
R5917
NASBS
470
R5941
PFIDL
L1SS400
D5901
1K
R5982
100
R5919
1M
R5924
L2SC4081
Q5911
0
R5933
0.1
C5914
FORLP
220
R5920
100
R5926
NJM2058V
IC5921
2
3
1
220K
R5943
0
R5914
10M
R5931
330K
R5974
100
R5925
L1SS400
D5921
100
R5913
180K
R5902
L1SS400
D5961
470
R5971
100K
R5983
120K
R5912
470K
R5932
-12V
0.22
C5944
18K
R5945
47K
R5975
NTCG16
R5967
ALCL
NJM2058V
IC5911
2
3
1
POCV
NJM2058V
IC5911
13
12
14
L1SS400
D5962
68K
R5915
LDTC143ZE
Q5932
220K
R5903
L1SS400
D5963
0.1
C5945
EALC
4.7M
R5922
LDTA114YE
Q5901
REFLP
0.1
C5915
47K
R5946
NJM2058V
IC5911V+
4
GND
11
1.8M
R5923
47K
R5918
47K
R5901
8V
L1SS400
D5941
LDTA114YE
Q5931
ICCV
100K
R5963
0
R5921
ALC
NJM2058V
IC5921V+
4
GND
11
68K
R5965
39K
R5916
18P
C5942
1
C5913
10K
R5964
470
R5961
82K
R5944
4.7K
R5904
L1SS400
D5971
100P
C5943
1
C5916
0.1
C5922
10K
R5973
220K
R5972
0.1
C5912
0.1
C5911
0.1
C5923
180K
R5966
100K
R5954
0.01
C5953
4.7K
R5957
0.22
C5952
2.2K
R5956
2.2M
R5952
0
R5953
2.2K
R5951
82K
R5955
NJM2058V
IC5911
9
10
8
L1SS400
D5951
NJM2058V
IC5921
6
5
7
NJM2058V
IC5921
9
10
8
2SAR502UB
Q5981
RU1L002SN
Q5902
4.7K
R5984
1
C5954
1
C5955
1
C5956
1
C5957
1
C5958
1
C5959
100P
C5910
1M
R5962
0.0047
C5962
0.047
C5963
10k
R5968
8V
-12V
MAIN UNIT(3/9)
MAIN UNIT(5/9)
MAIN UNIT(1/9)
MAIN UNIT(2/9)
5.5
–0.1
–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
8V
8V
8V
–12V
–12V
–12V
–12V
Explanatory notes
TX Line
RX Line
Voltage Line
• MAIN UNIT (9/9)