Icom IC-F3GS service manual Inside Views, Main Unit TOP View, Bottom View

SECTION 2 INSIDE VIEWS

• MAIN UNIT

TOP VIEW

Antenna swtching circuit (D1, D2, D8: MA77)

Power amplifier (Q1: 2SK2974)

Low-pass filter circuit

APC

(IC3A: NJM2902V ) Q37: DTA144EU

FM IF IC

(IC2: TA31136FN(D))

IF amplifier

(Q14: 2SC4215 O)

Mic amplifier circuit

PLL IC

(IC1: ∝PD3140GS)

TX/RX switch (D3, D4: MA77)

BOTTOM VIEW

RF amplifier (Q12: 3SK293)

1st mixer

(Q13: 3SK239A)

Crystal filter

(FI1: FL-311 [NARROW]) FL-312 [WIDE]

PLL reference oscillator (X1: CR-664 15.3 MHz)

VCO circuit

D/A converter

(IC10: M62363FP-560C)

EEPROM

(IC7: HN58X2432TI)

CPU

(IC8: HD64738747H)

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