Icom IC-F4001 Service Manual page 7

AF AMP
(IC55)
POWER CTRL
(Q63)
AGC CTRL
(Q21)
XTAL BPF
(FI1)
1ST IF MIXER
(Q23)
IF DEMODULATOR IC
(IC3)
R5 LINE REGULATOR
(Q72)
S5 LINE REGULATOR
(Q71)
CLONE BUFFER
(Q81, D51)
CPU
(IC51)
• MAIN-A UNIT
(BOTTOM VIEW)
+5V LINE REGULATOR
(Q74)
RESET IC
(IC53)
EEPROM
(IC52)
2 - 2
TUNED BPF
(D24, D26)
RF AMP
(Q22)
POWER AMP
(Q1)
DRIVE AMP
(Q2)
PRE-DRIVE AMP
(Q3)
PRE-AMP
(Q4)
BUFFER
(Q9)
RIPPLE FILTER
(Q15)
BUFFER
(IC60)
D/A CONVERTER
(IC57)