Icom IC-M803 - DSC OPERATION; Scanning Receiver Settings

10-2
EALC
14V
J4006
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
TRAS
ASENI
KEYIN
FSK
SW
Q4142
SEND
SW
Q4141/Q4161/Q4162
METER
AMP
IC4021/IC4022
THML
X4921
RESET
IC5011
A/D
AMODS
A/D
IC5661/Q5661
DCLK_N
DCLK_P
EEPROM
IC5001
AF
AMP
IC5601
AFONS
DC
AMP
IC5581/Q5581
D/A
D/A
LPF
IC5521
D/A
D/A
HAGCV
D/A
DAGCV
TXS
RXS
FORLP
REFLP
LPF
IC5541
LPF
IC5541
DC
AMP
IC5581/Q5582
METER
AMP
IC4021/IC4022
BUFF
IC4072
PDICL
R2646/R2647
LEVEL
SHIFT
HV
ALCL
PWRSR
KEYIN
TRAS
DSENI
NASBS
DMODS
AMODS
POCV
IC5051
D/A
PDIDV
DID1V
DID2V
FID2V
FID1V
FANV
ICCV
REFV
J1504
J1504
J7711
1
2
3
4
5
6
7
8
9
J7721
1
2
3
4
5
6
7
8
9
FID3V
FID4V
MMODS
BUFF
IC4072
PFICL
IC5651/Q5651
DMODS
IC5681/Q5681
MMODS
DRIV
DPONS
HPONS
HPOFS
DPOFS
ASENI
EKEY
ESTA
J20016
1
2
3
4
5
6
7
8
9
10
1112
HV
IC5064
EXPANDER
TCON
HB7S
HB8S
HB2S
HB9S
HB3S
HB5S
HB6S
IC5063
EXPANDER
HB1S
HB4S
DB1S
IC5062
EXPANDER
DB2S DB6S
DB3S
DB5S
DB4S
J20015
D/A
XOCV
L3S
L5S
L6S
L8S
L1S
L4S
L7S
IC5061
EXPANDER
L2S
L10S
L9S
DSENI
NMRS
+3R3V
REG
IC7703
+3R3V
REG
IC7702
DC
AMP
IC5561
MDAT
DRESL
MCK
FILSTB
NMRS
RPPS
AFONS
SLFS
RMNEAO
ANTCL
DCSYNCS
SEND
SW
Q5041/Q5042
BPF
ALCL
PWRSR
THML
EKEY
ESTA
FMOD
DSMD
DSAF
AAF
AAF
AMOD
AMOD
VDL
TCON
FORL
REFL
DIDL
FIDL
DSMDE
DSAFE
FMODG
AFE
AAFE
AAFE
AGND
AGND
ANTCL
AFO
6:NC
1:CWK
5:AF
7:14V
2:AF GND
3:SEND
4:MOD
8:ALC
[ACC]
IC4901
CPU
FPGA
HV
MCLK/BCLK/FRM/FPCAL DR_AMOD
MCLK/FRM/BCLK
ECK/EDT
VOUT5
VOUT1
VOUT2
VOUT7
VOUT8
DX_AFO/DX_ACC
DX_AGC/DX_REFC
IC5621
R
L
IC5501
I2S buss line
IC5101
MCK/MDAT/
DSTB
NRST
TO FRONT UNIT
fc=15kHz,A=0.5
fc=15kHz,A=1
fc=15kHz,A=2
[GPS-ANT]
[GPS-DATA]
[REMOTE]
[AF/MOD]
RS232C
I/F
4:DTR
8:CTS
2:RXD/NMEA-OUT
1:DCD
6:DSR
5:GND
7:RTS
3:TXD/NMEA-IN
9:NC
NMEA2
I/F
5:DAF-
2:DMOD-
9:GND
7:NC
1:DMOD+
3:GND
4:DAF+
8:SEND
6:GND
MATRIX
ITU/GENE/STMD/USAS
TXVS/TRVS/AMAS
VER0/VER1/VER2
FNC0/FNC1/FNC2
GPS
MODULE
1:FMOD
2:FMODG
3:GND
4:FAF
5:FAFG
6:H13V
7:H13V
8:TXD
9:RXD
10:GND
FILSTB
MCK
DRESL
RNMEI
DNMEI
DTR/RPC
CONNECT UNIT
GTX/GRX/GRESL
H3R3V
DA5V
DA5V
FLASH
ROM
RNMEO
RAM
LRXD
LTXD
DRESL
MCK
FILSTB
DRESL
FILSTB
MCK
RBT_CS/RBT_CK/RBT_DO/RBT_DI
RBT_CFG/RBT_ST/RBT_BT HDECD/HENCD/DDECD
DRESD/HSK1
RSP_CK/RSP_STB/RST_SO/RST_SI
DA3R3V
DA3R3V
IC5401
[EXT-SP]
VOUT3
IC7701
DRESL
FILSTB
MCK
MDAT
H3R3V
RTC
USB
FI7701
IC5104
IC5081/Q5081/Q5082
See
MAIN UNIT(1/9)
for the schematic.
See
MAIN UNIT(8/9)
for the schematic.
See
MAIN UNIT(6/9)
for the schematic.
See
MAIN UNIT(7/9)
for the schematic.
See
MAIN UNIT(5/9)
for the schematic.
J5071
IC7721~IC7723/Q7721/Q7722
A5V
A5V
A5V
A5V
A5V
DTR
CTS
TXD
RTS
RXD
DSR
DCD
A5V
A5V
NMEA1
I/F
Q7731/IC7731/Q7792/IC7791/IC7741
IC4902
BUFF
A5V
Q7751/IC7751/Q7791/IC7791/IC7741
APC
AMP
IC5921
ICCV
REFLP
ALCL
NASBS
ALC
AMP
Q5981
METER
AMP
IC5921
PFIDL
POCV
ALC-CTRL
Q5931/Q5932
EALC
ALC
FORLP
ALC
AMP
IC5911
ALC
AMP
IC5911/Q5911
APC
AMP
IC5921
8V
ALC
AMP
IC5911
-12V
See
MAIN UNIT(9/9)
for the schematic.
+3R3V
REG
IC4331
+1R8V
REG
IC4371
H3R3V
REG
IC9691
+1R1V
DC-DC
IC4261
I5V
DC-DC
IC9702
+8V
DC-DC
IC9721
+3R3V
REG
IC4341
H4V
DC-DC
IC9673
+5V
REG
IC4361
+2R5V
REG
IC4321
PWRSR
DCLK
DCLK
DCLK
-12V
DC-DC
IC4381
DCLK
+5V
REG
IC9751
PWRSR
AudioADC/DAC
I5V
OPamp,etc
1R8V
FPGA3.3V
I5V 3R3V
14V
RFDAC
I5V FP1R1V
AudioADC/DAC
RFADC
I5V
H4V
8V
DA3R3V
H3R3V
FPGA-core
TUNER
8V
MAIN CPU
8V
DA5V
ACC
HV
(13.6V)
14V
(13.6V)
H4V FP2R5V
FPGA2.5V
RFAMP
See
MAIN UNIT(2/9)
for the schematic.
AF-AMP
DC-DC UNIT
-12V
OPamp
ANALOG
8V A5V
8V
Explanatory notes
TX Line
RX Line