Icom IC-M424 Service Manual page 6

AF POWER AMP
(IC701)
D/A CONVERTER
(IC514)
AF AMP
(IC515)
TX/RX AF LINE SW
(IC901)
TX/RX AF LINE SW
(IC904)
PLL IC
(IC101)
REFERENCE FREQUENCY
OSCILLATOR
(X101)
2ND IF FILATER
(For MAIN CH)
(FI204)
IF IC (For MAIN CH)
(IC201)
DISCRIMINATOR
(For MAIN CH)
(X201)
NOISE AMP
(IC202)
2ND IF FILATER
(For CH70)
(FI304)
2ND LO OSCILLATOR
(X302)
DISCRIMINATOR
(For CH70)
(X301)
1ST LO OSCOLLATOR
(For CH70)
(X401)
IF IC (For CH70)
(IC301)
• MAIN UNIT
(TOP VIEW)
BPF (For MAIN CH)
(FI201)
+5 V REGULATOR
(IC512)
2 - 2
AF LPF
(IC905)
YGR AMP
(Q13)
TX POWER AMP
(IC1)
APC AMP
(IC2)
VCO
1ST IF FILTER
(For MAIN CH)
(FI203)
1ST IF FILTER
(For MAIN CH)
(FI202)