Main Unit - Icom IC-2730A Service Manual

CLONING DATA LINE BUFFER
(IC312)
AND LOGIC GATE IC
(IC108)
AF SW
(IC109)
ELECTRONIC VOLUME IC
(IC110)
+3.3 V REGULATOR
(IC314)
+5 V REGULATOR
(IC319)
AF LINE MUTE SW
(IC111)
D/A CONVERTER
(IC1)
1ST IF FILTER (Right band)
(FI105)

• MAIN UNIT

(TOP VIEW)
RESET IC
(IC308)
EEPROM
(IC301)
IF IC (Right band)
(IC120)
1ST IF FILTER (Right band)
(FI104)
2-2
NOISE AMP (Left band)
(IC123)
NOISE AMP (Right band)
(IC122)
MIC MUTE SW/MIC GAIN SW
(IC100)
VOX AMP/IDC AMP/AF LPF
(IC112)
AF LPF/AF BUFFER
(IC103)
D/A CONVERTER
(IC102)
MODULATION MUTE SW
(IC205)
IF IC (Left band)
(IC121)
EXPANDER
(IC316)
EXPANDER
(IC315)
EXPANDER
(IC317)
MIC AMP
(IC101)