Icom IC-80AD Service Manual page 6

• MAIN UNIT
(TOP VIEW)
1ST IF FILTER (WFM)
(FI2)
1ST IF FILTER (FM/AM/DV)
(FI50)
IF IC
(IC100)
CURRENT DETECT
(IC800)
2ND IF FILTER (WIDE/NARROW)
SELECTOR
(Q153)
• MAIN UNIT
(BOTTOM VIEW)
RF AMP
(Q700)
2ND IF MIXER (WFM)
(Q2)
2ND IF AMP (WFM)
(Q1)
D/A CONVERTER
(IC600)
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IF AMP
AGC VOLTAGE DETECTOR
(Q103)
(Q104)
REFERENCE FREQUENCY
SIGNAL BUFFER
(Q450)
SERIAL/PARALLEL
CONVERTER
(IC702)
2 - 2
T5V REGULATOR
(Q804)
RX AF LINE SWITCH
(IC500)
TONE FILTER
(IC150)
AF FILTER
(IC501)
SERIAL/PARALLEL
CONVERTER
(IC701)
FM/WFM MODE SWITCH
(Q201)
DISCRIMINATOR
(X100)
DETECT VOLTAGE
SELETCOR (BATTERY/DC-IN)
(IC1000)
2ND IF FILTER
(WIDE MODE)
(FI200)
2ND IF FILTER
(NARROW MODE)
(FI100)
T5V REGULATOR
(Q805)
REFERENCE FREQUENCY
OSCILLATOR
(X450)