Icom IC-F6012 Service Manual page 38

SECTION 10. BLOCK DIAGRAM
8V
Q18
2SK880
LVIN
BUFF
IC19 X2 IC4
MB15A02
TA75S01F CR-794
BAL
15.3MHz
REF PLL LOOP
AMP
REF IC FIL
SCK
Q34
SO
2SC4116
PLST
X3 LPF
45.9MHz
IF IC
BPF
Q5
LDTC144EE
NWC
X1
W/N
SW
JTBM450CX70
IC21
SQIN DISC
TA75S01F
AM P
REF 5V
NWC
MCOT
IC16
NJM12902
MCGO
AM P
D/A
IC16
IC18 NJM12902
AK2330 DISC
SO
HPF
SCK
CP3
DAST B
J
AFOUT
BEEPO BEEP
VRAF
BAL
VRAF
TENC
5/2 TONE DEC
IC16
NJM12902
DISC
LPF
I C20:M62334FP
T1
D/A
T2 CTCSS/DTCS DEC
Q39
TLVA DSDA XP4601
SCK
RLVA DISC
LPF
J1
Explanatory notes
M CIN BUSY
CONTROL LINE
MCOT DISC
COMMON LINE
REM
OPT1-3 TX LINE
8V CCS
CIRQ RX LINE
5V SO
SI
SIGO SCK DATA LINE
OPV1
O PTIO N
AFONO OPV2(EXST)
OPV3(DAST)
BEPO
AFOUT
PTTI
RMUT
C
MMUT E PTTO
10 - 1
Q17
Q15:DMC561040
2SC4116
Q16:LDTC144EE
RX VCO
RIPPLE VCO
FIL SW
D52:HVC350B
Q14:2SC4226
D33:HVB350B
RLVA RLV Q11
AD J 2SC5107
BUFF
D 53:HVC350B
T8V
TLVA TLV
AD J
TX VCO
Q12
Q13:2SC4226
M T3S37T
D16:HVB350B
BPF X2
D18
1SV309
FM
MOD Q4
2SC5107
IF
AMP
IC1:NJM2591V
F
D68,D69 FI2
HVD144A LTM450FW
CERAMIC
W/N
SW BPF
FI6 450kHz RSSI NOIS
LTM450HW
CERAMIC
W/N
BPF SW
D70,D71:HVD144A
450kHz
Q40:LDTA114EE
ANALOG
SW
RXAF TXC
MMUT
IC14
CD4066 RMUT
MOD
IC16
NJM12902
SIG
LPF
TONE
SDEC
VCC
8V
CDEC D23:DA221
Q25:2SD1664 IC9
Q 29:DRC9114T0L NJM7808D
VCC
T8V T8 TMUT
REG 8V
Q26:2SA1577 Q 23:2SJ506S
Q30:LDTC144EE Q24:LDTC144EE
RXC
R8V R8
REG 8V
Q27:2SB1132
IC10
Q28:XP6501
NJM2831
8V
5V +5
REG CPU5
RXC
TXC
Q10 D14,D15 Q9 Q8
2SC3357
2SC5107 HVD142A 2SC4226
TX/RX YGR
DRIVE
BUFF LPF
SW AMP AM P
353.65MHz-423.65MHz
403.65MHz-473.65MHz
RSSI
LPF
FI1 D9
D19 D10
FL-442
HVC350B HVC350B HVC350B
46.35MHz
XTAL
BPF BPF BPF
BPF
Q3
3SK293
T2
IC15
TA75S01F
BEEP PRE
BEEPO AMP
MCOT M CIN
CP4 A
CP4
I
CP_3
(EAFO)
CP4
K
J6
CP_3
Ext.I/O 7 (AFO) PGIO4
CP_3 CP5 SIG
E
Ext.I/O 6 (DIM/IGSW) SIGO
Ext.I/O 11 ( HORN) CP4
D
Q31
ACC
DISC 2SJ144
F
F
IN LINE
SW
CP3
Ext.I/O 14 (EPTT)
Ext.I/O 4 (SERIAL)
Ext.I/O 10 (SERIAL)
NW C
TMUT
HORNO
RXC
BUSY
D43
DAP222
MMUT E
MMUT
EXP
MMUT CTRL
D42 IC17
DAP222 CD4094
RMUT
+8 RMUTC RMUT
REG CTRL
D44
LDAN222
W2
PWON AFONO
POWE R AFON AFON
SW HV CTRL
CPU5
REG
IC3
RA30H4047M1 (25W)
RA30H4552M1 (25W)
RA60H4047M1 (45W)
D3,D5
RA60H4452M1 (45W)
RN752
PWR ANT
LPF
AM P SW
IC2
Q1:2SK1829
TA75S01F
AGC APC
AMP
Q2 D4 D8
HVC350B HVB350B
3SK293
RF
BPF BPF
AMP
IC8
LA4425A
AF
AM P
D 29:L1SS400
Q36:LDTC144EE
Q35:DTC363EK
AFO
AF AFON
G
MUT E
FRONT UNIT
IC5
NJM12902
AM P
IC5
NJM12902
TONE SENC
LPF
BEEP CSFT
IC5
NJM12902
TENC CENC0-2
LPF
CPU
Q3
LDTC114EE
FIL DUS E IC1
SW HD64F22388
NOIS
DIM EPTT
CDEC LVIN
SDEC R SSI
EXST
SO
SCK
PGIO4
PTTI
PWON
IC2
NJU7704F3-42A
RESET RES
CPU5
AFVI
PTTO
400-470MHz
450-520MHz
LPF
D1,D11,D12
LRB706F
DET
PWR
Q6:LDTC144EE
TMUT
MUT E
SW
T1
J4
SP
J1
AFO
MIC
8V
MIC
PTT JACK
C LI CLO
D6
HVD142A
SHIFT
SW
X1
CR-915
12.288MHz
Q 2:LDTC114EE
Q5-14:LDTC114EE
8V
LED
CTRL
DS1-9
LNJ426W83RA
DS10
CL-165
IC3
S-24CS64CI
ESDA
ESCL EEPROM
KS0-1,4
KEYX6
S2-S7
KR0-3
PUSH1
POSW
POSW
PWR
PUSH1
AF VR
R14
RK09D1130A1N