Inside Views - Icom ID-4100A Service Manual

SECTION 3
• MAIN UNIT
(TOP VIEW)
PRE AMP
(Q510)
RF AMP
(Q500)
RF AMP
(Q17)
D/A CONVERTER
(IC1)
AM/FM SW
(IC119)
IF IC
(IC120)
CERAMIC BPF
(FI101)
CERAMIC BPF
(FI100)
VCO
ALC AMP
(IC14)
MIC AMP
(IC101)
BTMIC SW
(IC100)
???????
(???)
• MAIN UNIT
(BOTTOM VIEW)
J304
J102
+8 V REGULATOR
(IC313)
J103
APC CTRL
(IC2)
DRIVE AMP
(Q40)
EEPROM
(IC301, IC304)
CPU
(IC300)
CPU
(IC405)
LINEAR CODEC
(IC15)
DSP
(IC18)
???????
(???)

INSIDE VIEWS

???????
(???)
VOX AMP
DTMF MUTE
(IC112) (IC104)
J305
J25
???????
(???)
3-1
???????
(???)
J5
J301
POWER AMP
POWER AMP
(VHF BAND)
(UHF BAND)
(IC3)
(IC4)
???????
(???)
J300
J1
FAN CTRL
(Q30)
VCC SW
(Q306)
ELECTRONIC VOLUME IC
(IC110)
3.3 V REGULATOR
(IC314)
3.3 V REGULATOR
(IC311)
4.2 V REGULTOR
(IC323)
DIGITAL/ANALOG AF MUTE
(IC109)
VOLTAGE DETECT IC
(IC13)
3.3 V REGULATOR
(IC403)
FLASH ROM
(IC20)
SD3V REGULATOR
(IC305)
DRIVE AMP
(Q41)
LOOP FILTER
(IC207)
PLL IC
(IC206)
BT3V REGULATOR
(IC306)
J100