Icom IC-M91D - DSC Operation - Position and Test Calls; Transmitting Position Report Calls; Transmitting Test Calls

9 - 1
SECTION 9
.
BLOCK DIAGRAM
LPF
ANT
SW
J1
PWR
AMP
DRIVE
PRE
BPF
RF
AMP
BPF
TX/RX
SW
BUFF
BPF
APC
CTRL
BUFF
BUFF
BUFF
BPF
IF
AMP
FIL
LOOP
X360
7.9872MHz
VCC
VCC
LPF
X170
450KHz
BPF
LIMIT
AMP
LPF
AF
AMP
X1
21.25MHz
AMP
VCC
MC1
MIC
SP1
SP
PTT S3
BPFBPF
AF
MUTE
AF
MUTE
AF
MUTE
M5V
VCC
AMP
BUFF
AF
AMP
1.8V
AMP
LPF
AMP
1.1V
X200
8.192MHz
POWER ON S4
PTT S3
M5VS
RVS
T5VS
WDECV
RSSIV
LOINV
NOISEV
TEMPV
BATTV
BEEP
AFVS
MICMS
RINTM
TXMS
PTTIN
EXPTTIN
PTTMLOW
PWSW PON
EXTDET
DTEST
SPON
WETIN
AFVCTRL
DSCOUT1
DTEST
DSCIN
TDETV
21.7MHz
FI150:FL-368Q151: D131:
D92:
T5V
D52:1SV307
Q90:
Q53: Q54:D50,D51: Q50:Q24:
Q23:
Q25:
Q21,Q22:KTC3770U
IC1:GP214D
PLL IC
PWR
DET
TX
MUTE SW
MOD
MUTE
R5V
DE-
ENPHA
AF
REG
PRE
ENPHA
IF DET IC
D/A IC
CLONE
MIC
GND
BUFF REG
5V
REG
R5
REG
T5
CPU
3.3V
RESET
CPU3.3V
RESET
EEPROM
LCD
KEY
DIM
CTRL
LED
HV
GND
J291
VCO
Q150:
D91:
RF
CHASSIS
REF Q20:LDTC144EE
IC50:NJM2125F
Q366:LDTC144EE
IC170:
FI170:
450KHz
IC190:
DS246:
Q240:
IC340:
IC360:
IC220:
IC341:
Q221:L2SA1576AS
Q222:L2SA1576AS
M5V
R5V
T5V
Q230:TPC6103
IC200A:
IC200B:
IC363C:
Q361:L2SA1576AS
WDECV
VOLIN
VOL
SQL SQLI
FCON
MODC
CLOTXD
TXMS
RSSIV
NOISEV
MODC
PLLO
2ND LO
DET
FCON
BR24T256J
KTA1664DS240,DS241,DS247:
SML-512WW
8803L22022
X360
CR-834
STM32F100ZET6B
SP
Q364:LDTC144EE
Q365:LDTC144EE
Q224:KTC811U
Q225:KTA1664
NJU7704F3
NJU7772F33
LMV324IPW
PTT
MIC
Q231:KTC811U
D350:L1SS400
JTBM450CX70
LTM450FW
NJM2591V
M62364FP
KTC3880S FI151:FL-399A
3SK293
3SK294
D93:
RB706F
Q392:LDTA144EE
RD07MUS2BRD01MUS2KTC3770UHVD144A2SC4215
2SC4215
2SC4215
D20:HSC277TRF
D21:HSC277TRF
D22:HVC350BYPTL
CR-921
COMMON LINE
RX LINE
TX LINE
D130:
KDV214EA
T1CON
LMV324IPW
INMIC
EXTMIC
Q251:2SA1832GR
CONT
PTT
EXPTTIN
CONTROL LINE
T1CON/PCON
TDETV
D/A contorl BUS
PLL DATA BUS
CLORXD
AFVS
CD4066BPWR
IC260D:
RINTM
MOD
CD4066BPWR
IC260A:
PTTM
MICMS
CD4066BPWR
IC260C:
3.3V
REG
IC2:NJU7772F33
KDV214EA KDV214EA
KDV214EA
DIMM
PWR
CTRL
PWR
CTRL PWSW
PON
RSQ035P03TR
Q353:
D358:LDAN222
Q354:LDTC144EE
PTTIN
Q350:L2SC4081
IC364:TC7WH14FK
MC250
S250
Q357:LDTC144EE
PCON
LOW
Q3:2SK880
LOINV
Q250:
LDTC144EE
CONT
MIC
PTTM
IC200C:
LMV324IPW
LMV324IPWLMV324IPW
IC200D:
AF
SP/ESP
SW
SPON
TDA8547TS
IC362:
DSC
SW DEC
DSC
DSCOUT1
DSCSET
DSCOUT1DTEST DSCIN
MICO
MSENS
MIC
WET
DET
WET
SW
Q390:2SJ347
WETIN
Q391:
LMNU5213DW1
LEVEL
CONVERT
SN74AUP1T17DCKR
IC372:
EP2:
PGS4ER-CX-412
IC366
TC7W53FK
IC365
NJM2211M
IC363B:
LMV324IPW
IC363D:
LMV324IPW
LMV324IPW
IC363A:
NC
SW
NOISE CANCEL IC
T5VS
LC70301W
IC382:
TC7W53FK
IC380:
Noise cancel control BUS
GPS control BUS
BEEP
IC362:
TDA8547TS
GPS MODULE
DIST
DISTRESS
S251
DET PIN
CPU3.3V
AFV
SW
Q370:LDTC144EE
AFVCTRL
CHASSIS
RF
MAIN
RF
CPU
LED
DS246,DS247:
DS242,DS243,DS244,DS245,
LNJ426W83RA
LEDV
REG
5V
NJU7772F05
IC384:
DC
DC
1.8V
1.1V
TPS62400DRCR
IC383:
Q382:L2SC4081
D359:DZ2J033M0L
LEDV
LNJ426W83RA
Q363:LDTC144EE
DS248,DS249:
MUTE
SW
Q371:
LDTC144EE
MUTE
LDTC144EE
Q400: