Block Diagram - Icom IC-F6021 Service Manual

SECTION 11.

BLOCK DIAGRAM

MAIN-A UNIT
Q18 8V
2SK880
LVIN
BUFF
IC19 X2 IC4
TA75S01F CR-794 MB15A02
B A L 1 5 . 3 M H z
REF PLL LOOP
AMP
REF IC FIL
SCK
Q34 SO
2SC4116 PLST
X3 LPF
45.9MHz
IF IC
BPF
Q5
DTC144EU
NWC
X1
W/N
SW
JTBM450CX24
SQIN DISC
REF 5V
NWC
MCOT
IC16
NJM12902
MCGO
AMP
D/A
IC16
IC18 NJM12902
AK2330 DISC
SO
HPF
SCK
B
DAST
J
AFOUT
BEEPO BEEP
BAL
VRAF
TENC
5/2 TONE DEC
IC16
NJM12902
DISC
LPF
IC20:M62334FP
T1
T2 CTCSS/DTCS DEC
Q39
D/A
XP4601
TLVA DSDA
SCK
RLVA DISC
LPF
J1
MCIN BUSY Explanatory notes
MCOT DISC
REM
OPT1-3
8V CCS
CIRQ
5V SO
SI
SIGO SCK
OPV1
OPTION
AFONO OPV2(EXST)
OPV3(DAST)
BEPO
AFOUT
PTTI
RMUT
C
MMUTE PTTO
11 - 1
Q17
Q15:XP1214
2SC4116
Q16:DTC144EU
RIPPLE VCO
FIL RX VCO SW
Q14:2SC4226
D52:HVC350B D33:HVC350B
RLVA RLV Q11
ADJ 2SC5107
BUFF
D53:HVC350B
TLVA TLV
T8V ADJ TX VCO
Q13:2SC4226 Q12
D16:HVC350B MT3S37T
BPF
X2
D18
FM 1SV309
MOD Q4
2SC4215
IC1:TA31136FN
F
D57 FI2
DAN235E LTM450FW
CERAMIC
W/N
SW BPF
FI6 450kHz RSSI NOIS
LTM450GW
CERAMIC
W/N
BPF SW D56:DAN235E
Q40:UNR9111
450kHz
ANALOG
SW
RXAF TXC
MMUT
IC14
CD4066 RMUT
MOD
VRAF
IC16
NJM12902
SIG
LPF
TONE
SDEC
VCC
8V
CDEC D23:DA221
Q25:2SD1664
Q29:UNR9215
VCC
T8
T8V TMUT
REG 8V
Q26:2SA1577
Q30:DTC144EU
R X C
CONTROL LINE
R8V R8
REG 8V
COMMON LINE
TX LINE
Q27:2SA1132
RX LINE
Q28:XP6501
8V
+5
DATA LINE 5V
REG CPU5
RXC
TXC
Q10 D14,D15 Q9 Q8
2SC5107 1SV307,MA2S077 2SC5006 2SC3357
TX/RX YGR
DRIVE
BUFF
SW AMP AMP
353.65MHz-423.65MHz
403.65MHz-473.65MHz
LPF
Q3
FI1 D9
D19 D10
3SK293
FL-335 HVC350B HVC350B HVC350B
46.35MHz
IF XTAL
BPF BPF BPF
AMP BPF
T2
BEEP
BEEPO
MCOT MCIN
A
I
(EAFO)
K
J6
Ext.I/O 7 (AFO) PGIO4
E
Ext.I/O 6 (DIM/IGSW) SIGO
D
Ext.I/O 11 (HORN)
Q31
ACC
DISC 2SJ144
F
IN LINE
SW
Ext.I/O 14 (EPTT)
Ext.I/O 4 (SERIAL)
Ext.I/O 10(SERIAL)
NWC
TMUT
HORNO
RXC
BUSY
D43
DAP222
MMUTE
MMUT
EXP
MMUT CTRL
IC9 D42 IC17
NJM7808D DAP222 CD4094
RMUT
+8
RMUTC RMUT
REG CTRL
Q23:2SJ506S D44,D45
Q24:DTC144EU MA2S111
P W O N AFONO
AFONAFON
POWER
SW HV CTRL
IC10
NJM2831 W2
CPU5
REG
RA30H4047M1 (25W)
RA30H4552M1 (25W)
D3:L407CD
RA60H4047M1 (45W)
D5:L709CE
RA60H4452M1 (45W)
D6:1SV307
IC3
PWR ANT
LPF LPF
AMP SW
Q1:2SK1829
RSSI AGC
Q2 D4 ,D21 D8 ,D20
HVC350B HVC350B
3SK293
RF
BPF BPF
AMP
IC15 IC8
TA75S01F LA4425A
PRE AF
AMP AMP
D29:MA2S111
Q36:DTC144EU
Q35:DTC363EK AFO
AF AFON
G
MUTE
FRONT UNIT
SIG
IC5
NJM12902
F
AMP
IC5
NJM12902
TONE SENC
LPF
BEEP
IC5
NJM12902
TENC CENC0-2
LPF
CPU
Q3
DTC144EU
DUSE IC1
FIL
SW HD64F22388
NOIS
DIM EPTT
CDEC LVIN
SDEC RSSI
EXST
SO
SCK
PGIO4
PTTI
PWON
IC2
S-80942
RESET RES
CPU5
PTTO
LPF
D1:1SS375
IC2 D11:1SS375
TA75S01F D12:1SS375
APC
DET
AMP
PWR
Q6:DTC144EU
MUTE TMUT
SW
T1
J4
SP
J1
AFO
MIC
8V
MIC
PTT JACK
CLI CLO
D6
MA2S077
CSFT SHIFT
SW
X1
CR-774
12.288MHz
Q5
DTC114TU DS1-9
SML-311YT
LIGT2 LIGT
CTRL
IC6 Q1:2SC4116
LC75834 Q2:DTC114TU
LINH
LCS LCD LIGT1 DIM
LSCK DRIVER CTRL DS11
LSO AO1B011X
COM1-4
SEG1-32
LCD
IC3
S-24CS64A
ESDA
ESCL EEPROM
KS0-1,4
KEYX6
KR0-3
POSW
POSW
PWR
AFVI
AF VR
R14
RK09D1130A1N