Icom IC-M401E

2 - 1
SECTION 2 INSIDE VIEWS
•
FRONT UNIT
•
MAIN-E UNIT
Antenna switching
circuit
(D14, D21: XB15A308)
VCO circuit
PLL reference oscillator
(X1: CR-768)
1st mixer
(Q22: 3SK131)
YGR amplifier
(Q12: 2SC3775)
Pre-driver
(Q10: 2SC4226)
Power amplifier
(IC3: RA35H1516M-01)
1st IF filter 21.7 MHz
(FI1: FL-368, FI2: FL-363)
FM IF IC
(IC2: TA31136FN)
2nd IF filter
(FI3: CFWLA450KFFA)
PLL IC
(IC1: µPD3140GS)
AF mute
(IC4: TC4W66FU)
RF amplifier
(Q21: 3SK131)
Photo coupler
(IC8: PC357N6T)
Reset IC
(IC2: S-80942CNMC)
System clock
9.8304 MHz
(X1: CR-739)
CPU
(IC1: HD6433847RB82H)
SQL board LOGIC-E board Speaker
VR board
EEPROM
(IC4: HN58X2432TI)