Icom IC-F3021S Service Manual page 31

SECTION 11 BLOCK DIAGRAM
S5V
LVIN
BUFF
Q21
2SK880
15.3 MHz
IC7 X2
NJM12902V
CR-783
REF
BUFF TCXO
BAL
Q22 IC2
2SC5006 MB15A02PFV1
PLL
X3
IC
PLST S5V
SCK
SSO
ULCK
45.9 MHz
BPF
CERAMIC
BPF
SQLC
NOIS RSSI
AF
FI3
SFPKA450K
MOD
MCGO
DISC
D/A
BEEPO
OPTION CONNECTOR
IC12
BEEP
M62364FP
MODI
DAST
SCK
SSO
CTCSS/DTCS
DECODE
Q39
XP4601
AF
LPF
DTMF/DEC
IC6
LM2902PWR
LPF
D_IF
DAFO
Q40
UNR9213J
CTCSS/DTCS FIL
DMO
SW
OPTION
DMI CONNECTOR BEPO
DUSE
J5
SIGO
AXK540145J
AFONO
BUSY
DS3
LCD
VREF
PTTO
PTTI
DISC
MCIN
AFOUT
MCOT
Q20
2SC4116
RIPPLE
FIL
D9 : HVC376B
D11: HVC375B
RX VCO
D33: HVC376B
Q17
RLVA
2SC5006
RLV
ADJ
LV
LOOP
FIL
D10: HVC376B
D13: HVC375B
TX VCO
D34: HVC376B
Q16
TLVA
2SC5006
TLV
ADJ
LPF
FM D12
MOD 1SV239
IF IC
IC9: TA31136FNG
Q9: DTA114EU
D2: DAN235 Q47
UNR9213J
D3: DAN235
CERAMIC
A/D W/N NWC
SW BPF SW
X1
FI2 CDBCB450KCAY24
CFWLB450K
450KHz
DIGI
IC5 Q32: 2SK3019
NJM13403V Q33: UNR9213J Q36: 2SK3019
Q37: UNR9213J
RXMUTE
HPF LPF
SW DAFO
DAFO
OPTION
CONNECTOR
Q8
AFOUT
2SC4215
RMUT DIGI
BUFF MMUTE DIGI
DTMF ENCODE
IC6
LM2902PWR
SENC
LPF
S5
SW-167
MONI
MONI
CDEC
SW
S1
EVQ-PUL
EMER
EMER
SW
SDEC
KRO-4
KRO-3
KEY
MATRIX
IC7
NJM12902V
CPU
CENC0-2 X6 D6
REM MA2S077
CR-774
IC22
LPF
12.288MHz
IC10
HN58X2464TI
ESDA
LSO
IC20 ESCL
EEPROM
LSCK
LC75834W
LCS
LINH
LCD
DRIVER IC8
BD5242G
RES
Q45: UNR9113J
DS1: LNJ310M6URA
DS2: LNJ310M6URA
R256
ERTJ0EP473J
LIGT
TEMP
LIGT
CPU5
11 - 1
Q18: XP1214
Q19: UNR9213J MAIN UNIT
R5V
VCO
SW S5V
D16:1SV307
D17: MA2S077
Q29
2SC5006
TX/RX
BUFF BUFF
SW
Q15
2SC5006
X2
D31: MA2S077
D32: MA2S077 Q14
2SC5700
BPF
182.35MHz-220.35MHz
LPF
Q7 FI1
T5V
2SC5107 FL-335
Q6
3SK324
46.35 MHz
IF XTAL
BPF
AMP BPF
MIX
IC23
M62334FP
TLVA
D/A
RLVA
DSDA
SCK
IC3
CD4066BPWR
RMUT
SW
MMUTE
ANALOG
IC5 SW
NJM13403V
RMUT
CTCSS/DTCS
SIGO LPF
TONE
IC7 DMI
NJM12902V
OPTION
DMO CONNECTOR
AMP
+5V
IC7
NJM12902V
VREF +5V
BIAS
SHIFT CPU5
SW
Q26: 2SB1132
Q27: XP6501
Q28: UNR9213J
CSFT +5V
Q23
2SA1577
CPU5
+5V
S5
S5V
REG S5C
Q25
2SA1577
+5V
CPU5
RESET R5V R5
REG R5C
Q24: 2SA1577
Q49: UNR9213J
CPU5
+5V
T5V T5
REG T5C
PA UNIT
Q704 Q702 Q701 D702: RB706F
2SC5006 RD01MUS1 RD07MVS1 D703: RB706F
TX PRE
PWR
DRIVE
DRIVE
AMP
AMP
IC701
TA75S01F
APCV
APC
AMP
D19 D24
HVC375B HVC375B
RF
BPF BPF
AMP
Q5
3SK293
T1
IC5 IC25
NJM13403V Q31: 2SK3019
TC7W53FK
IC5 MIC A/D
HPF
NJM13403V Q34: 2SK3019 MUTE SW
GAIN
AMP
SW
MMUTE DIGI
Q35
UNR9213J
T5V
SW
DIGI
TONE IC6
LM2902PWR
AF VOL
BUFF
R315
TP76N00N
BEPO
BEEPO
IC17
NJM2870
VCC
CPU5
CPU5
REG
CPU5
VCC
+5
REG
PODN
136-174MHz
D701: 1SV307
D704: 1SV307
D706: 1SV307
PWR ANT
LPF
DET SW
ANT UNIT
Q705: XP6401
F701
PDET Q706: 2SC4081
0467003.NR
CONNECT
1 2
CURRENT
APC
UNIT
DET
T5V
ISENS BT3
RX
BATTERY_1
Q46
UNR9213J
TMUTE
SW
VCC
TMUT
EXT MIC
OPTION CONNECTOR
MCOT MCIN
J3
HSJ1102-018540
IC24
AN6123MS
MIC
MC1
ALC
SKB-2746
PTT SW
Q43: UNR9111J S2
PTTO
PTT
DET
PTTO PTTI
OPTION CONNECTOR
IC15
TA7368FG EXT SPEAKER
AF AFOUT J2
AMP HSJ1456-010320
SP
Q41: XP6501 CLONE
Q42: 2SB1132
D21: DAN222
D23: MA2S111
AFON
PWR
1
AFONO CTRL
SP1
2
J4
BM02B-ASRS-TF
Q44: UNR9210J
D28: RB706F
CLI
CLO
CLONE
BUFF
Explanatory notes
CONTROL LINE
COMMON LINE
TX LINE
RX LINE
DATA LINE
+B LINE