Icom IC-PCR100 Service Manual page 5

SECTION 2
¡MAIN UNIT
700–1300 MHz RF filter circuit
350–700 MHz RF filter circuit
150–300 MHz RF filter circuit
0.01–1.8 MHz RF filter circuit
1.8–15 MHz RF filter circuit
15–30 MHz RF filter circuit
VCO3 circuit
VCO1, VCO2 circuits
Reference oscillator
(X5: CR-629 12.8 MHz)
AGC control circuit
AGC amplifier (Q45: 2SC4211)
WFM demodulator IC
(IC7: LA1832M)
FM demodulator IC
(IC10: TA31136)
IF amplifier (Q29: 3SK131)
EEPROM (IC20: X25020SI)
INSIDE VIEWS
Top view
Bottom view
2 - 1
AM demodulator
(D63: 1SS372)
IF 6 kHz filter
(FI6: CFWS450HT)
IF 15 kHz filter
(FI7: CFWS450E)
FM discriminator
(X2: CDBCA450CX24)
FM 3rd LO signal
(X1: CR-630 12.5 MHz)
CPU
(IC21: HD6433644A)
AF amplifier (IC23: M62429)
AF power amplifier (IC25: NJM2073)
0.01–1.8 MHz RF filter circuit
30–50 MHz RF filter circuit
HF RF amplifier (Q12: 2SK2171)
50–150 MHz RF filter circuit
1st mixer (IC4: µPC2721)
2nd mixer (IC5: µPC2721)
PLL IC (IC8: MC145220)