Icom IC-F50

SECTION 10 BLOCK DIAGRAM
10 - 1
400–520MHz
LPF
BATTERY_1
BT1
1
F1
VCC
2
Q26:
TCP6103
Q403: 2SC4116
Q404: RSR025N03
Q405: RSR025N03
Q406: DTC144EU
Q401: 2SB1132
Q402: XP6501
IC406:
TC7W66FK
D401: MA2S111
D402: MA2S111
Q407: DTA144EU
Q409: XP4111
DS402,DS403
SML–310MT ×2
AMP
IC407:
NJM12904
LPF
IC403:
NJM12902
AF
MUTE
IC406:
TC7W66FK
SIGNAL
AFO
X3
CR–746
4.00 MHz
CSFT
SHIFT
SW
Q28:
DTC144EU
1/4
R5
REG
IC410:
BU4094
RES
EEPROM
CPU5
+5V
+5V
IC12:
BU4094
T5
REG
S5
REG
+5
REG
Q23: 2SB1132
Q24: XP6501
Q25: DTA144EU
SCRM
BLER
T5C
T5V
R5V
S5V
+5V
R5C
S5C
VCC
BATT
SELECT
D404:
MA2S077
SHIFT
SW
EXPANDER
EXPANDER
RESET
IC9:
NJM2870
IC408:
BD5242G
IC409:
24LC64T
ANALOG
SW
AMP
IC10:
AK2346
COMPRESSOR
HPF
BPF
LPF
IC7:
EW–460
CSFT
X401
CR–764
19.6608 MHz
CR–765
3.6864 MHz
X4
R190
TEMP SDEC
LIMIT
AMP
MSK
DE–Modulator
MSK
Modulator
IC5:
NJM12902
IC403:
NJM12902
IC403:
NJM12902
Q408:
DTC144EU
CTCSS/DTCS DEC
CDEC
CDEC
CDCS
DUSE
SENC0–3
CENC0–2
IC5:
NJM12902
EXPANDER
SCRM
BLER
LPFAMP
LPF
DET
D/A
CTCSS/DTCS
IC11:
TC4W53FU
IC6:
M62363FP
MOD
DET
LPF
LPF
LPF
FIL
SW
AMP
+5V
TONE
LPF
IC5:
NJM12902
FM/PM
SW
AMP
IC15:
TC3W03FU
Q21:
2SA1577
Q22:
2SA1577
IC14:
FX214LG
IC13:
BU4066
DS406:
CL–165HR
FRONT UNIT
MAIN UNIT
G
R
DS404,DS405
SML–A12MT ×2
LED
CTRL
MIC
MUTE
PTT
DET
IC405:
TA7368F
PWR
CTRL
AF
AMP
AF VOL
BEEP
TONE
SPONSPON
SP1
MC1
PTT
CONNECTOR
AFO
AFO
MIC
PTT
VCC
RESETRESET
DETECT DETECT
LCD
NOTES :
Contorol line
Common line
TX line
RX line
DATA lime
Voltage line
CLI CLO
ANT
SW
LPF
PWR
AMP
APC
AMP
PWR
DET
MUTE
SW
TMUT
D38:
MA2S111
POWER
SW
AF
MUTE
DRIVE
AMP
D1,D39:
RB706F ×2
Q7:
RD07MVS1
T2
IC2:
TA75S51F
Q8:
RD01MUS1
GATE
CTRL
D3,D4:
HVC350B ×2
RF
AMP
BPF BPF
BPF
T2
T2 T2
BPF
1st Mixer
RSSI
T1
T1
Q5:
2SC3356
Q1:
2SK1829
D7,D8:
HVC350B ×2
D9:
HVC350B
D10:
HVC350B
1st LO=
353.65 MHz–473.65 MHz
1st IF=
46.35 MHz
XTAL
BPF
Q3:
3SK299
D14,D15:
MA2S077
Q10:
2SC5107
Q12:
2SC5107
Q14:
2SC4226
Q11:
2SC5107
R5V
Q15: XP1214
Q16: DTC144EU
FI1:
FL–335
D17: HVC350B
LVA
MOD
FM
MOD
LV
ADJ
RIPPLE
FIL
LOOP
FIL
IC4:
MB15A02
LV
ADJ
D18:
MA368
D22:
HVC350B
BUFF
LVIN
LPF
CDBC450CX24
RX VCO
TX VCO
Q13: 2SC4226
D16: HVC350B
Q17:
2SC4116
S5V
Q18:
2SK880
X2
CR–763
15.3 MHz
IC5:
NJM12902
Q34:
2SC4116
TCXO
BUFF
X 3
PLL
IC
BPF
LVA, T1, T2
SQIN
2nd LO
=45.9 MHz
X1
DET
MOD
BAL
REF
LV
D21:
HVC350B
IF IC
NOIS
ALFYM450F
450 kHz
IC1:TA31136FN
FI2
RSSI
IF
AMP
Q4:
2SC4215
TX/RX
SW
BUFF
BUFF
BUFF
VCO
SW
LPF
Q2:
3SK293
CERAMIC
BPF
CPU
IC401: HD6432264F01TF
D2: 1SV307
D5: MA2S077
YGR
AMP
Q9:
2SC5107
YGR
AMP