![background image](http://html.mh-extra.com/html/icom/ic-f2000-series/ic-f2000-series_service-manual_2038222008.webp)
2-2
• MAIN/MAIN-B UNIT (BOTTOM VIEW)
BUFFER AMPLIFIER
(IC7)
LOCK VOLTAGE SWITCH
(IC14)
[ROTARY SELECTOR] (S4)
[VOL] (R27)
MICROPHONE AMPLIFIER
(IC12)
POWER AMPLIFIER
(Q38)
DRIVE AMPLIFIER
(Q36)
PREAMPLIFIER
(Q35)
LOW-PASS FILTER/
SUMMING AMPLIFIER
(IC11)
VCO CIRCUIT
Under the VCO cover
PLL IC
(IC15)
MOTION SENSOR
(IC22)
EEPROM
(IC13)
LEVEL CONVERTER
(IC23)
+3 V REGULATOR
(IC24)
+5 V REGULATOR
(IC20)
MIXER
(Q37)
RF AMPLIFIER
(Q39)
46.35 MHz
BANDPASS FILTER
(FI1)
D/A CONVERTER
(IC10)
IF IC
(IC16)
LOW-PASS FILTER
(IC5)
CPU
(IC9)
CPU5 REGULATOR
(IC6)
RESET IC
(IC8)
15.3 MHz
REFERENCE OSCILLATOR
(X3)
12.228 MHz CPU CLOCK
(X2)