Icom IC-F4021T - SECTION 11 BLOCK DIAGRAM; Transceiver Block Diagram

SECTION 11 BLOCK DIAGRAM
11 - 1
Explanatory notes
+B LINE
LPF
ANT
LPF
IC6
LM2902PWR
LPF
LPF
IC6
LM2902PWR
LPF
IC7
NJM12902V
RESET
IC8
BD5242G
SHIFT
SW
D6
MA2S077
ANT
SW
D701
1SV307
PWR
AMP
Q701
RD07MVS1
TX/RX
SW
D16:1SV307
D17: MA2S077
RX VCO
Q17
2SC4226
TX VCO
Q16
2SC4226
RIPPLE
FIL
Q20
2SC4116
FIL
LOOP
PLL
IC
IC2
MB15A02PFV1
X3
Q22
2SC5006
X1
CDBKB450KCAY24
X6
CR-774
12.288MHz
AMP
IC5
NJM13403V
FM
MOD
D12
MA368
Q6
3SK324
BPF
D14: HVC350B
D29: HVC350B
BPF
D15
HVC350B
BPF
D19: HVC350B
D20: HVC350B
BPF
RF
AMP
Q5
3SK293
APC
AMP
IC701
TA75S01F
XTAL
BPF
FI1
FL-335
IF
AMP
Q7
2SC5107
CERAMIC
BPF
FI2
CFWM450F
450KHz
Q47
UNR9213J
AF
AMP
IC15
TA7368FG
SP1
BUFF
Q29
2SC5700
BUFF
Q15
2SC5006
BUFF
Q21
2SK880
FIL
SW
Q40
UNR9213J
DRIVE
AMP
Q702
RD01MUS1
MC1
SKB-2746
PTT SW
S2
PTT
DET
Q43: UNR9111J
AF VOL
R315
TP76N00N
TCXO
PWR
CTRL
Q42: 2SB1132
Q41: XP6501
D23: MA2S111
D21: DAN222
PRE
DRIVE
Q703
2SC3356
TLV
ADJ
D10: HVC350B
D13: HVC350B
RLV
ADJ
D9 : HVC350B
D11: HVC350B
HPF
IC5
NJM13403V
AF
MIX
IC5
NJM13403V
R256
ERTJ0EP473J
J2
HSJ1456-010320
J3
HSJ1102-018540
Q44: UNR9210J
D28: RB706F
CLONE
BUFF
J4
BM02B-ASRS-TF
1
2
LPF
HPF
IC5
NJM13403V
RXMUTE
SW
Q32: 2SK3019
Q33: UNR9213J
MUTE
SW
Q46
UNR9213J
PWR
DET
D702
RB706F
PRE
DRIVE
Q704
2SC5006
BATTERY_1
BT3
F701
0467003.NR
1 2
BUFF
IC7
NJM12902V
CERAMIC
BPF
FI3
SFPC450H
LCD
DRIVER
IC20
LC75834W
LCD
DS3
KEY
MATRIX
BUFF
IC6
LM2902PWR
SW
Q35
UNR9213J
ALC
IC24: AN6123MS
MIC
MUTE
Q31: 2SK3019
A/D
SW
IC25: TC7W53FK
AMP
IC7
NJM12902V
EEPROM
IC10
HN58X2464TI
IC23
M62334FP
D/A
DAFO
SW
Q36: 2SK3019
Q37: UNR9213J
TX/RX
SW
Q18: XP1214
Q19: UNR9213J
X2
Q14
2SC5700
GAIN
SW
Q34: 2SK3019
Q35: UNR9213J
A/D
SW
Q9: DTA114EU
D2: DAN222
D3: DAN222
LPF
LIGT
Q45: UNR9113J
DS1: LNJ310M6URA
DS2: LNJ310M6URA
MONI
SW
S5
SW-167
EMER
SW
S1
EVQ-PUL
BPF
BPF
D24: HVC350B
D25: HVC350B
S5
REG
Q23
2SA1577
CPU5
REG
IC17
NJM2870
T5
REG
Q24: 2SA1577
R5
REG
Q25: 2SA1577
Q48: UNR9213J
REG
+5
Q26: 2SB1580
Q27: XP6501
Q28: UNR9213J
BIAS
IC7
NJM12902V
SDEC
CDEC
RES
CENC0-2
REM
SENC
D/A
IF IC
IC9: TA31136FNG
LV IN
S5V
R5V
CTCSS/DTCS
DUSE
CONTROL LINE
COMMON LINE
TX LINE
RX LINE
DATA LINE
T2
T1
APC
TMUT
NOIS
CPU
IC22
IC12
M62364FP
REF
BAL
15.3 MHz
X2
CR-783
45.9 MHz
SQLC
46.35 MHz
TONE
CTCSS/DTCS
DECODE
Q39
XP4601
MAIN UNIT
CSFT
MIX
MOD
BEPO
CTCSS/DTCS
MODI
LV
IC3
CD4066BPWR
ANALOG
SW
TEMP
OPTION CONNECTOR
OPTION CONNECTOR
OPTION CONNECTOR
AFON
BEPO
BUSY
DISC AFOUT
PTTI PTTO
MCIN MCOT
SIGO
J5
AXK540145J
OPTION
CONNECTOR
AFON
AFON1
PTTO
CLO
CLI
BEEPO
PTTI
PTTO
DISC
MCIN
MCOT
VCC
ANT UNIT
PA UNIT
RSSI
DMO
DMI
OPTION CONNECTOR
DMO
DMI
DAFO
VCC
DAFO
T5V
MMUTE
DIGI
DIGI
RMUTE
EXT SPEAKER
AF
MMUTE DIGI
RLVA
TLVA
TLVA
RLVA
CONNECT
UNIT
AF
R5V DIGI
W/N
SW
NWC
RMUTE
RMUTE
SCK
DSDA
MCGO
DIGI
EXT MIC
MIC
AFOUT
SP
CLONE
MMUTE
SIGO
BEEP
BEEPO
D_IF
S5V
AFOUT
VREF
APCV
R315
+5V
LIGT
DIGI
TONE
+5V MONI
EMER
353.65 - 423.65 MHz (400 - 470MHz)
403.65 - 465.65 MHz (450 - 512MHz)
403.65 - 473.65 MHz (450 - 520MHz)
400
- 470 MHz
450 - 512 MHz
450 - 520 MHz
S5C
+5V
CPU5
T5C
PWON
CPU5
S5V
R5C
R5V
+5V
VCC
T5V
+5V
VCC
+5V
ESDA
ESCL
CPU5
CPU5
CPU5
CPU5
CPU5
KRO-3
KSO-4
+5V BIAS
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