Icom D-STAR ID-4100A, Service Manual, Page: 7 / 46

3-1
SECTION 3 INSIDE VIEWS
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• MAIN UNIT
(TOP VIEW)
• ??? UNIT
(BOTTOM VIEW)
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(???)
DTMF MUTE
(IC104)
J5 J301
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ELECTRONIC V OLUME IC
(IC110)
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(???)
3.3 V REGULATOR
(IC403)
4.2 V REGULTOR
(IC323)
DIGITAL/ANALOG AF MUTE
(IC109)
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(???)
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(???)
VCO
AM/FM SW
(IC119)
PRE AMP
(Q510)
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(???)
ALC AMP
(IC14)
BTMIC SW
(IC100)
VOX AMP
(IC112)
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(???)
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(???)
• MAIN UNIT
(TOP VIEW)
FPGA
(IC306)
PPI RAM
(IC150)
LED CONTROLLER
(IC304)
FLASH ROM
(IC20)
VO LTAGE DETECT IC
(IC13)
3.3 V REGULATOR
(IC311)
VCC SW
(Q306)
FAN CTR L
(Q30)
J1
3.3 V REGULATOR
(IC314)
SD3V REGULATOR
(IC305)
SELECT IC
(IC218)
MIC AMP
(IC101)
IF IC
(IC120)
D/A CONVERTER
(IC1)
RF AMP
(Q500)
RF AMP
(Q17)
CERAMIC BPF
(FI100)
CERAMIC BPF
(FI101)
CPU
(IC29)
TX BUFF
(IC36)
LCD
(IC300)
FIFO
(IC20)
STC
(IC215)
FTC
(IC219)
LVDS
(IC301)
LED CONTROLLER
(IC305)
ONE SHOT IC
(IC217)
BUFF
(IC201)
D/A
(IC32)
DETECT IC
(IC211 to IC213)
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• MAIN UNIT
(BOTTOM VIEW)
• ??? UNIT
(BOTTOM VIEW)
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(???)
DRIVE AMP
(Q41)
PLL IC
(IC206)
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(???)
J100 J300 J25 J305
DSP
(IC18)
BT3V REGULATO R
(IC306)
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(???)
CPU
(IC300)
EEPROM
(IC301, IC304)
+8 V REGULATO R
(IC313)
J103
J102
CPU
(IC405)
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(???)
POWER AMP
(UHF BAND )
(IC4 )
POWER AMP
(VHF BAND )
(IC3)
LOOP FILTER
(IC207)
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(???)
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(???)
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(???)
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(???)
J304
DRIVE AMP
(Q40)
APC CTRL
(IC2)
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(???)
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(???)
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(???)
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(???)
LINEAR CODEC
(IC15)
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(???)
1.5V REGULATOR
(IC7)
DC-DC
(IC5)