Icom IC-FR3000 Service Manual page 126

SECTION 10 BLOCK DIAGRAM
VCC2
M9V
L9V
REG
A5V
UNIT
REGTEMP
PSD
M9C
from JACK2 UNIT
from IC40
PROG
ANI CLR
CH UP
CH DN
to CPU
MONI
RPT/BASE
SP MUTE
REMOTE
DS1 Q17: DTC144EE
Q18: XP1114
DC
Q19: XP1114
Q20: XP1114
DS2 Q24: 2SJ377
PROG
LED
CTRL
DS3
TX
DS4
BUSY
DS5
BASE
DS6
REMOTE
DS7: MSC-C161UYLY-4W
LCD from CPU
FRONT UNIT
NC
1
L1
2
L2 L1
3
NC
4
L2
TEL LINE
CONNECTOR
CP28
M MONI
1
M PTT
2
Q4, Q6, Q25: 2SC4081
3
Q5: 2SA1576
L9V
4 D7: MA2S111
5
6
CLONE CLONE
7
8
MIC
SP/MIC
CONNECTOR SPR
from JACK1 UNIT
INT SP
SPR
CHASSIS UNIT
IC13: BU4066BCFV
IC1: NJM2902V
MIC MUTE
IC1D
from FRONT UNIT
MIC AF
SW-D
AMP
IC2D
MICMUTE1
IC1C
MIC
E MOD1
AF MIX
SW-C
AMP
MICMUTE2
IC1A
TELAFO
AF
SW-B
AMP
TELMUTE1
IC1B
CP3
AF
SW-A
AMP
E MOD2
MICMUTE3
CP4
MICI
J7, J8
OPTION
DISCO SLOT12
OPT1, OPT3
from IC41
AFOUT
IC9C: NJM2902V IC29: FX805LG
CP1
DISC CTCSS
BUFF
DET
from RX UNIT
IC8: NJM2902V
IC8A–C IC8D
CTCSS
AMP
FIL
from IC39 IC12A, C IC12D
DTCS DTCSI
AMP
FIL
IC12B IC12: NJM2902V
25TI
25T
FIL
IC31: LC7387M
IC30: TC4W53FU
DTMF DTMF
DTSTD,DTACK,DTMFD
SW DECODE
X1: CR-733
DTSEL2
4.194304 MHz
from CPU
TELAFO
to IC1A
Q38: XP1214
D4: D1UBA80 RL1: ATX209
RL2: ATX209
D28: 1SS355
BRIDGE
D29: 1SS355 IC46: BA6566F
IC50: TC4W53FU
SPEACH
HOOK
NET
SW
D5: D1UBA80
HOOKC
from CPU TELAFI
BRIDGE
IC51: NJNM2107F
AF
AMP
D1: PTZ36B
IC48: TLP121
RXDT1,TXDT1
I/F
RING
RINGER
to CPU
IC38: S-812C50AMC
Q45: 2SA1362
D13: SB07-03C
IC11: TA78L05F
L9V TEL5V L9V C5V
+5V
C5V
REG
10 - 1
IC2: NJM2902V
IC3: NJM2902V
IC2C IC2A, B IC3A IC3B
CP2
PRE- SIG
HPF LIMIT
EMP MIX
IC14 TC4S66F
IC26: NJM2904V
RPT
AFATTO
AF
MICO
MUTE
R/BSW
from IC41
CP8
CP5 CP6 CP9
SIGOUT
IC3C, D
TX-
SIG IC52: NJM2520V
FIL
AF
MUTE
25TDTMFO, MBEEP, CWO, DTMFO
from CPU
AFMUTE2
from IC40
IC6: NJM2107F
AF AFATTI
AMP
to IC25
IC10: NJM2902V
IC9: NJM2902V
IC9D, B IC9A IC10A, B IC10C
DE- AF
HPF LPF
EMP AMP
CIRQ,CCS,SDTI,SCK,SDTO
IC7B
AF AF OUT
AMP
CP10 CP11
CP12 CP13
to CPU
IC7C
AFOUT1
AF
AMP
IC7: NJM2902V
to CPU
IC7A
AF DISCOUT
AMP
BASEL
RMTL
BUSYL
TXL IC39: BU4094BCFV
DCL
PROGL PORT
D5C EXPAND
AFMUTE1,2
IC40: BU4094BCFV
MICMUTE1~3
TELMUTE1,2
TELBMR PORT
EXPAND
R/BSW
W/NS
IC41: BU4094BCFV
R9C
OPT1,3
IC47: LC73701M
M9C PORT
TELBUSY EXPAND
to CPU
I/F
DTMF
DIALER
SW
SCK, SDTO, TELSTB
DTSEL1 TELBMR
from CPU from IC40
IC45: LM567CM
IC53: TC4W53FU
TOUCH
REGTEMP
ONHOOK TLV
TONE
T/RLV from REG UNIT
to CPU from TX UNIT
DECODE
RLV SW
PATEMP
from RX UNIT from TX UNIT
NOTE
:DATA BUS
Q48: IMZ4T108
D43: MA2S111
:CONTROL LINE
:CONTROLS LINE
L9V L5V
L5V
:COMMON LINE
:TX LINE
:RX LINE
IC4D IC4: NJM2902V
Q1: XP1214
TX-
CTDTO
TONE
from CPU
FIL
IC4A, B, C
SPLAT
FIL
IC25: M62364FP
IC26A SCK, SDTO, DA2STB
RX REF
FREQ
AF
E DTCS A5V
ADJ.
AMP
from JACK2 UNIT
A5V RX BPF
IC26B
TUNE
AF
E MOD3
AMP
from JACK2 UNIT
RPT
AFATTI AFATTO
AF
ADJ.
RPT
SQL
ADJ.
IC20:
IC21: TC4W53FU
TC4W53FU
R/B R/B
DISC
SQLI SQLO
from RX UNIT SW SW
BASEL BASEL
from IC39
from IC39
SQL
KBEEP
IC16:
from CPU TC4W53FU
AFVRI AFVRO AF
MUTE
VOL
Q37:
AFMUTE1
DTC144EE
VR
IC7D
from IC40
TELAFI
AF AF
UNIT
AMP MUTE
IC42, IC43: TLP121 GB
D23–D26: MA2S111
Q44: DTA144EE
TELMUTE2
E MOD1
from IC40
AFOUT1
BUSYL
IC34: S-80842CLUA-B363
IC35: BU4011BFV
IC36: BU4011BFV
Q3: DTC144EE
INT, RES
RESET
IC37: HN58X2464TI BUSYL,TXL
from IC39
EEPROM
MCK, MDT
D0, D1 ,
D2, D3, D4
SCK, SDTO, PE1STB
E PT1, E PT2
CPU Q7: XP1214
MONI, R/B, M/SI
Q8–Q11: XP1111
IC33: HD64F2238FA13 Q49,Q50: XP4311
D10,D11: MA2S111
SCK, SDTO, PE2STB
COAXSW, M/SO
SCK, SDTO, PE3STB
Q26~Q29: XP4311
D19~D22: MA2S111
T/RLV RXDT0, TXDT0
RTS, CTS
TEMP
IC32: TC4W53FU
TEMP
D14
SW
MA2S077
SHIFT
SW
SW
from CPU
X2
CR-681
12.288 MHz
SHIFT
from CPU
LOGIC UNIT
SCK,SDTO,DA1STB,TPLSTB
TLV
TUNLK
PATEMP
TX
FWSWR
RVSWR
UNIT
I TONE
TXAF
E TONE
TMUTE1, TMUTE2, W/NS
M9V
RVCON
TUNE
M9V
RLV
RUNLK
RX
RSSI
UNIT
DISC
SQL
NDET
R9C, W/NS
SCK, SDTO, RPLSTB
IC17:
LA4425A
SPR
AF SP
AMP
EXT SP JACK
JACK1
UNIT
+ – EXTMOD
1
2
+ – AFOUT
3
I/F
4
+ – PTT
5
6
+ – BUSY
7
8
8P MODULER
CONNECTOR
E PT1
+15V
JACK2
D0
D1 CP26 UNIT
I/F
D2 CP24
D3
CP22
D4 CP20 1
14
M/SI, E PT2,
2
E MONI, E R/B
15
3
BUSYOUT, TXOUT, 16
COAXSW, M/SO
4
17
5
18
6
CTS CP25 19
7
RTS
CP23 20
8
I/F
DTO CP21 21
9
DTI CP19 22
10
23
E MOD2 11
24
E MOD3
12
25
E DTCS
13
RSSI
D-SUB 25PIN
AF OUT
CONNECTOR
DISCOUT