Icom IC-M803 - Page 80

11-14
• CONNECT UNIT
C7711
0.1
C7713
0.1
C7721
0.0047
R7724
47K
47K
R7722
R7711
0
R7723
10K
R7714
0
R7721
47K
C7715
0.1
C7712
0.1
C7722
0.01
R7713
0
R7712
0
0.1
C7714
J7701
TA0757B
FI7701
I O
100K
R7704
100K
R7705
J7761
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
1
R7701
1
R7702
C1608CB
L7701
470P
C7705
1
C7706
1
C7704
470P C7703
22P
C7701
220P
C7702
0.1
C7707
0.1
C7708
0.001
C7709
R7734
47K
TC7WH32FU
IC7723
1
2
3
4
5
6
7
8
EZJP0V080DA
D7721
R7730
EZAEG2A
ADM202EARNZ
IC7721
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
T2O
8
R2I
9
R2O
10
T2I
11
T1I
12
R1O
13
R1I
14
T1O
15
GND
16
VCC
L1SS400
D7724
R7726
0
R7727
0
R7732
47K
R7728
0
TC7W08FU
IC7741
1
2
3
4
5
6
7
8
1
C7723
R7731
47K
R7729
EZAEG2A
1
C7725
47K
R7733
1
C7727
1
C7724
0.01
C7728
1
C7726
J7721
1
2
3
4
5
6
7
8
9
R7744
47K
ADM4853ARZ
IC7722
1
RO
2
RE
3
DE
6
A
7
B
8
VCC
4
DI
5
GND
R7725
0
C7734
0.01
1
R7755
1
R7738
0.001
C7731
0.1
C7753
0.1
C7732
R7741
4.7K
R7761
220
R7762
220
R7763
220
R7764
220
R7765
220
1
R7703
J7711
1
2
3
4
5
6
7
8
9
1
C7717
1
C7716
S-1313D33
IC7703
1
VIN
2
VSS
3
ON/OFF
4
NC
5
VOUT
0.1
C7741
0.1
C7730
0.1
C7735
Q7722
L2SC4081
Q7721
L2SC4081
S-1313D33
IC7702
1
VIN
2
VSS
3
ON/OFF
4
NC
5
VOUT
EZJP0V080DA
D7722
Q7723
LDTC143ZE
270
R7739
270
R7740
0.1
C7733
C7729
0.01
L1SS400
D7723
MPZ2012S601A
EP7891
0.1
C7891
10
C7710
MPZ2012S101A
EP7701
D7711
L1SS400
47P
C7720
MPZ2012S101A
EP7761
0.1
C7761
0.1
C7762
0.1
C7763
MPZ2012S101AEP7762
MPZ1608S601AEP7763
J7751
LDTC143ZE
Q7724
10k
R7766
CF20 CP7701
CF20
CP7702
CP10S
CP7704
CP10S
CP7703
1M
R7746
D7746
L1SS400
D7747
L1SS400
1M
R7747
4.7U
L7702
100U
L7721
10U
L7722
GSU-141A
IC7701
A1
RF_IN
A2
VSS
A3
VSS
A4
VSS
A5
VDD_BKUP_IN
A6
VSS
A7
GPIO0
B1
VSS
B2
VSS
B3
VSS
B4
UART0_RX
B5
UART0_CTS
B6
VSS
B7
UART0_T X
C1
VSS
C2
VSS
C3
VSS
C4
NRST
C5
BOOT_MODE0
C6
VDD_IO_HOST
C7
GPIO1
E7
VSS
E6
VSS
E5
VDD_PRPH_OUT
E4
VSS
E3
VSS
E2
VSS
E1
VSS
D7
I2C_SDA
D6
I2C_SCL
D5
VDD_BKUP_BAT_IN
D4
NC
D3
VSS
D2
VSS
D1
VSS
560
R7754
TLP2303
IC7751
2SC4213
Q7751
R7751
270
D7751
KDS122
100k
R7753
D7731
KDS122
R7736
270
2SC4213
Q7731
TLP2303
IC7731
560
R7749
100k
R7748
10k
R7737
10k
R7752
TC7W04FU
IC7791
1
2
3
4
5
6
7
8
0.1
C7791
LDTC143ZE
Q7791
LDTC143ZE
Q7792
4.7k
R7791
4.7k
R7792
R7742
4.7k
UA2-9NU
RL7721
UA2-9NU
RL7722
2590
MP7701
RSS
NMR
MOD+
MOD-
AF+
AF-
GND
GND
GND
DNMEI
GRESL
GRESL
GND
RNMEI
RNMEO
NSEND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
DSEN
DSAFE
14V
GRX_
GTX_
GTX
GRX
RPC
H3R3V
DTR
A5V
A5V
TO MAIN UNIT
[REMOTE]
[AF/MOD]
[GPS ANT]
DTR
DCD
DSR
RTS
CTS
RXD
TXD
GND
DTR
GRESL
GND
GND
DSEN
GND
GND
DSMD
RPC
GND
RNMEO
GND
NMR
GRX
RNMEI
GND
GND
GTX
DSAFE
DSAF
DSMDE
GND
DNMEI
RSS
GND
NC
14V
H3R3V
A5V
[GPS DATA]
3.3
5
NMEA selected
RS-232C selected
0
4.6
NMEA selected
RS-232C selected
4.8
0
NMEA selected
RS-232C selected
0
13.6
5
3.3
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
A5V
A5V
14V
14V
H3R3V
A5V
A5V
Explanatory notes
TX Line
RX Line
Voltage Line