Icom IC-M803 - CONNECTIONS AND INSTALLATION; Mounting Guidelines

11-15
• DC-DC UNIT
NJM2831F05
IC9671
1
CTRL
2
GND
3
NC
4
VOUT
5
VIN
10
C9715
MPZ2012S601A
EP9722
10
C9712
5.6
R9751
10
C9682
33P
C9716
10
C9679
22K
R9693
10
C9706
0.1
C9723
5.6
R9752
10
C9710
10
C9696
0.1
C9676
10
C9691
10
C9728
10
C9697
10
C9731
10
C9707
MPZ2012S101A
EP9782
0.1
C9671
3.3U
L9671
100
R9671
10
C9698
10
C9751
10K
R9673
MPZ1608S601A
EP9783
MPZ2012S601A
EP9701
MPZ2012S601A
EP9781
10
C9699
10
C9732
10
C9678
56.0K
R9723
MPZ1608S601A
EP9884
SN74LVC1GU04DCKR
IC9672
1
2
3
4
5
3.90K
R9705
10
C9666
10
C9700
100
R9701
2.7K
R9724
39K
R9692
MPZ1608S601A
EP9785
10
C9667
0.1
C9677
0.1
C9673
1.80K
R9725
56.0K
R9704
MPZ2012S101A
EP9787
1
C9672
10
C9687
SN74LVC1GU04DCKR
IC9701
1
2
3
4
5
10
C9708
J9781
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
R9691
0.1
C9724
0.1
C9785
33P
C9688
10
C9713
10
C9683
10
C9733
10
C9680
0.1
C9701
10
C9685
10
C9725
0.1
C9722
0.1
C9783
0.1
C9675
10.0K
R9676
10
C9711
6.8U
L9721
MP2224GJ
IC9673
1
AGND
2
IN
3
SW
4
GND
5
BST
6
EN/SYNC
7
VCC
8
FB
10
C9714
3183MP9671
1
2 3 4 5
6
7 8 9
10 11 12 13 14
0.1
C9705
10 CE-LH
C9753
100
R9722
10
C9709
0.1
C9784
0.1
C9704
10
C9668
10
C9729
MPZ2012S601A
EP9671
3.3U
L9701
10
C9717
NJM7805DL1A
IC9751
I O
G
10
C9669
0.1
C9782
2.2K
R9703
10
C9718
33P
C9735
MP2224GJ
IC9702
1
AGND
2
IN
3
SW
4
GND
5
BST
6
EN/SYNC
7
VCC
8
FB
10
C9670
MP2224GJ
IC9721
1
AGND
2
IN
3
SW
4
GND
5
BST
6
EN/SYNC
7
VCC
8
FB
MPZ2012S601A
EP9721
10
C9686
10
C9719
0.1
C9781
XC6230H001QR
IC9691
1
VOUT
2
NC
3
ILIM
4
VOFB
5
CE
6
VSS
7
NC
8
VIN
9
10
C9734
0.1
C9703
10
C9720
3.90K
R9706
10
C9730
56.0K
R9675
10
C9692
10
C9681
10
C9727
10
C9721
10
C9726
10
C9684
MPZ2012S101A
EP9788
0.1
C9786
0.1
C9787
H4V
H3R3V
A5V
HV
HV
8V
I5V
DCLK_P
DCLK_P
DCLK_P
14V
14V
14V
14V
DCLK_N
DCLK_N
HV
GND
GND
I5V
8V
NC
GND
14V
GND
HV
H4V
14V
8V
I5V
GND
GND
HV
A5V
14V
I5V
NC
H3R3V
TO MAIN
DCKL_N
GND
8V
14V
DCKL_P
H4V
H3R3V
14V
I5V
I5V
H3R3V
H3R3V
A5V
8
5.1
4.9
4 3.3
13.4
13.4
Measuring condition: (unless otherwise noted)
• Frequency: 12.23 MHz
• Mode: J3E (USB)
• RX: No signal is received.
• TX: No modulation signal is applied.
Digital tester setting:
Voltage notation:
RX
Unit: Volt
(Waveforms are measured by an Oscilloscope.)
TX
RX
Measuring Range Input impedance
200 mV 100 M
2 V 11 M
20/200/1000 V 10 M
14V
14V
HV
H4V
I5V
8V
H4V
HV
14V
H3R3V
Explanatory notes
TX Line
RX Line
Voltage Line