Icom IC-M401E - SECTION 10 BLOCK DIAGRAM

10 - 1
SECTION 10 BLOCK DIAGRAM
Explanatory notes
VOLTAGE LINE
TX LINE
RX LINE
COMMON LINE
X1: CR-691
9.8304 MHz
ANT
LPF
ANT
SW
DRIVE
PRE
TX/RX
SW
BPF
XTAL
YGR
AMP
PWR
AMP
NOISE
AMP
NOISE
DET
APC
CTRL
PWR
CTRL
BUFF
BUFF
X1: CR-768
21.25 MHz
FIL
LOOP
LPF
BPF
SP1
CI-V
I/F
BPF
BPF
CERAMIC
AF
AMP
BUFF
RF
AMP
IF
AMP
AF
MUTE
R1
R328
+5
REG
R114
R1
BPF
CONTRAST
LCD
AF
MUTE
D/A
BUFF
BUFF
GATE
CTRL
LEVEL
CONV
HPF
BUFF
PWR
CTRL
SQL
AMP
H/L
RMUTM
TMUTE
TXDET
BPFV
SEND
RCV
PTTM
BEEPM
BPLVL
ATIS
SQL
KEY
BOARD
DIM
CTRL
LCD
CPU
EEPROM
RESET
LOGIC-E BOARD
RF OUT
DET
2ND
MIX
2ND IF
AMP
FM
DET
2ND LO
BUFF
TX MUTE
CTRL
HV
PLL
VCO
PHOTO
COUPLER
MAIN-E UNIT
HM-132
IC2: TA31136FN
21.7 MHz
FRONT UNIT
FI1: FL-368
Q22: 3SK131
Q21: 3SK131
Q23: 2SC2714
FI3: CFWS450F
IC1: µPD3140GS
MOD
VR BOARD
IC1: HD6433847RH
DS1: TTR5341
Q1, Q3: 2SC4116
× 2
IC4:
IC2:
IC8:
Q31: 2SC4116
IC9: LA4425A
IC7A: IC8A:
Q4, Q5: 2SC4226
× 2
Q6: 2SC4215
Q3: 2SC4215 Q7: SC4215
D7, D8:
Q10: Q12:
Q15:
IC3:
D12, 13:
Q13: 2SA1577
D14, D21:
IC4A:
PROTECT
CTRL
D42: DSA3A1
T5
Q55: 2SB1132
13.8V
REVERSE
CTRL
Q53: 2SA1577
T5
5V
CONNECT
R5
Q52: DTC144EU
R8
R8
REG
R5
Q17:
SQL BOARD
2nd LO
MIC
AMP
IC10:TA7805S
EXT SP
INT SP
HVS
XB15A308
× 2
HSM88ASR × 2
DTC144EU
DTC144EU
Q16: FMW1
RA35H1516M2SC37752SC4226
MA77
× 2
D25: 1SV214D26, D27, D28:
1SV214
× 3
FI2: FL-363
D3, D4: HVC350B
× 2
VCC
Q54: DTC144EU
Q51: 2SA1588
Q56: 2SC4116
NJM4558M
S-80942CNMC
HN58X2432TI
Q2: 2SB1132
PC357N6T
Q4: 2SK1069
IC9B:
NJM2904M
ATIS
IC7:
TC74HC14AF
Q8: 2SC4081
Q9: 2SA1576
Q6: DTC114EU
Q7: DTA144EU
D1: 1SS355
OPTION DS-100
VCC
NJM4558M
IC7B:
NJM4558M
IC4B:
TC4W66FU
D31: 1SS355
PTT
TC4W66FU
5V
SQLV
Q41: DTC144EU
D41: DA204U
MIX
DSC+
DSC–
Q61: 2SC4116
DATAM
DATAS
RIIFF
ICF3
EMI
FIL
HVS
VCC
FI4, FI5:
RL1: FTR-P3CP012W1
D43: 1SS355
NFM60R20T152
× 2
Q34: DTC144EU
IC11: NJM2125F