![background image](http://html2.mh-extra.com/html/icom/ic-a24/ic-a24_service-manual_3618994005.webp)
2 - 1
SECTION 2
INSIDE VIEWS
VOR circuit
(IC-A24 only)
CPU
(IC1:
μ
PD78F0338GC-9EB)
RESET IC
(IC2: BD5245G)
EEPROM
(IC7: S-24CS64A01-T8T1-G)
CPU5V regulator
(IC3: XC6202P502PR)
LED DRIVE
Q1: 2SB1132
Q2: 2SC4211
+5V regulator
(IC16: S-812C50BM-C5E-G)
Clock oscillator
(X1: CR-747 9.8304 MHz)
LED DRIVE
(Q8, Q9: UNR9213J)
VOR circuit
(IC-A24/A24E only)
CPU
(IC1:
μ
PD78F0338GC-9EB)
RESET IC
(IC2: BD5245G)
EEPROM
(IC7: S-24CS64A01-T8T1-G)
CPU5V regulator
(IC3: XC6202P502PR)
LED drivers
Q1: 2SB1132
Q2: 2SC4211
+5V regulator
(IC16: S-812C50BMC-C5E-G)
Clock oscillator
(X1: CR-747 9.8304 MHz)
LED drivers
(Q8, Q9: UNR9213J
×
2)
TX final amplifier
(Q2: RD12MVS1)
Antenna switching
D8, D9:
HVU131TRF
ALC amplifier
(D4: 1SV246)
VCO circuit
Electric volume
(IC17: M62363FP-650C)
AF/FM switch
(IC2: TC4W53FU)
PLL IC
(IC3: TB31207AFN)
R5S regulator
(Q20: UNR9115J)
RX 1st mixer
(Q12: 3SK299)
RF amplifier
(Q11: 3SK293)
T5V regulater
Q7: 2SB1132
Q8: 2SC4211
D7: MA111
2nd IF IC
(IC1: TA31136FN)
VOR switching
Q19: UNR9215J
IC-A24 only
AGC amplifier
(Q14: 2SD1819A)
DC power switching
(Q24: HAT1024R)
ALC amplifier
IC15: AN6123MS
IC19: NJM2107F
Power amplifier
(Q2: RD12MVS1)
Antenna switches
D1, D8:
HVU131TRF
×
2
ALC attenator
(D4: 1SV246)
VCO circuit
Electric volume
(IC17: M62363FP-650C)
AM/FM switch
(IC2: TC4W53FU)
PLL IC
(IC3: TB31207AFN)
R5S regulator
(Q20: UNR9115J)
RX 1st mixer
(Q12: 3SK299)
RF amplifier
(Q11: 3SK293)
T5V regulater circuit
Q7: 2SB1132
Q8: 2SC4211
D7: MA111
FM IF IC
(IC1: TA31136FN)
VOR switch
Q19: UNR9215J
IC-A24/A24E only
AGC amplifier
(Q14: 2SD1819A)
DC power switch
(Q24: HAT1024R)
ALC amplifiers
IC15: AN6123MS
IC19: NJM2107F
TX final amplifier
(Q2: RD12MVS1)
Drive amplifier
(Q3: RD01MUS1)
• LOGIC UNIT
• RF UNIT (TOP VIEW)
• LOGIC UNIT
• RF UNIT (BOTTOM VIEW)