Icom IC-F80DS Service Manual page 36

SECTION 10 BLOCK DIAGRAM
FRONT UNIT
DS2
M4-0078TAY-2
LCD
D0 D7,FRST,RDB,WRB
10KEY
LATCH
IC2
M62320FP
VCC
RX
Q202
SW
2SB1132
SP1
AF
AF
AMP
Q209,Q210 MUTE
RSR025N03×2 IC201
TA7368F
IC205
AF
TC4F66S
MUTE
IC203 IC203
IC204
NJM12902V NJM12902V
TC4S66F
MC201
MIC MIC MIC
MUTE AMP AMP
EM-140
P1
PTT
MIC
XTXD
XRXD
RESET
DET
VCC
SP
9pin
S113
ENCORDER
CB10-13
VOL
SQL
MAIN UNIT
S5V
RIPPLE
FIL
Q3 Q600
2SC4116 2SC4226
IC2 IC1
NJM12902V LMX2352TM
X1
BAL CR-778
PLL LOOP
AMP
REF IC FIL
15.3MHz
Q14
MOD
2SC4215
X3
BPF
45.9MHz
BPF
FM IF IC
SQIN
X2
CDBC450CX24
W/N SW
D13
DAN235E
IC303
M62364FP
MOD
AF_ON
BAL
BEEP
VR
SIGNAL
DAST
SCK
SC
REF
MIC
MIX
DASW
IC12
IC305
NJM12902V
BU4053BCFV
DIG/ANA
DET
DISC
MIC
AUDIO
PROCESSOR
IC301
AK2346
X301
CR-799
RXAF RXAFIN
Explanatory notes
D/A SW
MCON
VOLTAGE LINE
TX LINE IC313
TC4W53FU
RX LINE
COMMON LINE
DATA LINE
Q609
D200, D501 Q200
Q605, Q606
RX-VCO
2SC5107 MA2S077×2 2SC5006
2SC5107×2
Q601
TX/RX
2SC4226
BUFF BUFF BUFF
SW
RX-VCO
Q602
2SC4226
Q608
2SC5107
TX-VCO
LPF
BUFF
BPF
FI500 D502, D505
Q500
FL-380 HVC350B×2
2SC4215 IC500
SPM5001
IF XTAL
BPF
IC3 AMP BPF
TA31136FN
L503, L504, L506
617DB
46.35MHz
FI1 RSSI NOIS
CFWC450F
CERAMIC IC310
BPF M62334FP
D14 T2
DAN235E
W/N SW
D/A
FI2
CFWC450G
Q303
2SC4215-Y
CERAMIC
BPF
D-IF
NWC
W/N SW
X300
Q15 DTA144EE
CR-800
Q16 DTC144EE
DTMF
IC2
NJM12902V
IC300
DISC SDEC
LC73872M
LPF
AMP
IC2
IC2
NJM12902V
NJM12902V
CDEC
LPF AMP
IC2
NJM12902V
SENC
LPF LPF
2TONE
IC12 IC12
NJM12902V NJM12902V
CTCSS/DTCS CENC
LPF
IC12
NJM12902V
DAOUT
DUSE
DTCS
Q300
DTC144EE
AFOUT
RXAFIN
EXPOUT
FM
IC302 DASW
BU4053BCFV
MIC SW FM/PM
IC302
BU4053BCFV
PM
DAOUT
Q201 Q202 Q203
2SC3357 RD01MUS1 RD07MVS1
PRE DRIVE PWR
LPF
DRIVE AMP AMP
Q204 DTA114EE
D205 MA2S111 APC
AMP
IC200
TX/RX
TMUT
TC75S51F
SW
T5V
Q502 D506, D507
3SK293 HVC350B×2
RF
BPF
AMP
Q306
2SA1577
R5V R5V
T1
T2
Q305
2SA1577
T5V T5V
+5V
IC308
HN58X24128FPI
CPU5
EEPROM
X302
CR-803
DSP UNIT (IC-F80DT/DS only)
CPU
IC10
12.288MHz
NJM2711F
IC307
X1
HD64F2268TF
CR-798
VCON
BUFF
EXTAL
IC15
TC7MET541AFK
BUFF
SO SIO CCSI OUT1
IC13
CSK0 PTTO PTTIN BUSY
TC7S04F
XTAL
BUFF
IC14
S-80928CNMC
3VC
RESET
CLKIN
MCLK
CODEC
IC9
AK4550VT
FI1
CFWC450E
CERAMIC
BPF
10 - 1
400-470MHz
450-520MHz
ANTENNA
D203
1SV307
ANT
LPF
SW
MUTE
Q304
2SA1577
S5V
TMUT
Q307 XP6501
Q308 2SB1132
+5VA
IC311 Q309
TK11250CM TPC6103
BATTERY
+V5C
POWER
REG
VCC
PWR
CPU
IC12
HD64F2239TE16
IC17
HN58X2416TI
EEPROM
IC2
R1230D151F
+1.5VC
REG
IC3
XC6204B332M
+3VA
REG
DSP
IC7
IC1
TMS320VC5416GGU120
XC6204B332M
+3VD REG
IC5 IC8
+5V
NJM2711 AD7476ART
AMP A/D