Icom IC-F2610 Service Manual page 33

SECTION 10 BLOCK DIAGRAM
VCC
EXT SP
AF
AMP
IC8
LA4425A
Q47 DTC144EU
DIM DIM
SW
ACC CONNECTOR Q45 DTC144EU
VCC HORN HORN
SW
J4
VCC
DIM +5V
HORN Q8 DTC114EU
GND
PAAF PA AF
BUFF
GND SW
DISC
IC9B
GND
TA75W558FU
IN
GND PASP
PTT
DISC
EPTT
Q506 D51 IC504
2SK1069
DMOD
MOD
BUFF
SW
AMOD
MODS
FRONT UNIT
IC1
SED1526FOA
SWITCH X19 LCD
DRIVER
IC2
HD6433640A33H
X1
CR-567
SUB
AF VOL
CPU
+5V
R26
AFV
POWER SW
CLONE
HANG HANG I/F
PTT
Q4, Q5 DTA114EU
+8V
D4
CLON CLON
Microphone
AFO
MIC
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DISC
AF OUT
IC7 IC3
M5282FP Q6
TA75W558FU D501
DTC114EU
+8V +5V DAN202U
Q515
DTA144EU Q501,Q502,Q510 DTC144EU
AF AF N/W
VCA HPF
MUTE
SW CTRL
Q7 Q61 2SC4116
Q5
+8V
DTC363EK
2SC4116
SP AMUT NWC
VCA
HFSW SHIFT
AMP
SW
IC2a
PA +5V
TA75S588F
PA
SW
CDEC
LPF
MIC OUT
IC25 TC4W66FU Q503
MIC IN XP4601
IC22
µPC5023GR
+5V
IC25 TC4W66FU
MIC 16 14
HPF LIMIT
AMP
SW AMP
AMP
IC21b +5V
TA75W01FU
MCON +5V
SIG OUT 4
BUFF
AMOD
DTMF DTMF
BEEP LINE
MIC
AFO /NWC
SP
CENC
VCC
IC5 AN8005M
+5V 5V VCC
REG
DS2-DS6 FY1112H
+8V
DS7,DS8, DS10, DS11 CL-170Y
Q6-Q9 DTA143ZU
DS1 DS13-DS16 CL-170Y Q10, Q11 DTC114EC
BACK LED
LCD
LIGHT CTRL
IC3 SED1526FOA
Q1 2SC4081
D1 MA111
+5V
RESET
D2
SQL MA111
IC4 TC7W04F
Q2, Q3 DTA114EU
D3 MA111
FTXD
DATA
I/F FRXD
GND
MA111
SP +8V
AFO
MIC
+8V
POSW
10 - 1
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FI4
FI3 R8V 1st mixer
SFPC455H SFPC455E
N/W N/W MCF
BPF BPF
SW SW
D502 Q2
FI1
DAN202U 3SK166
FL-264
R8V R8V
N/W
SW IF
FM IC
AMP
Q4 Q3
IC1 2SC4226
2SK302
MC3372SVM
X2
X1
CDBC455CX16
CR-574
/NWC
NWC
NOISE
+8V RSSI
IC502
Q65 2SK1829 TC7S66FU
Q62
N/W N/W N/W
DTC144EU
SW SW SW
IC503
SPLATTER
DMOD
TA75S01F
BUFF
12 5 6 7 8
MIX
Q516
2SC4081R
BEEP OUT
BUFF
Q35
2SC4081R
IC13 TC4W66FU
Q30 FMS2A
Q31 FMW2
BUFF
Q32
VCA PSET Q33 LOOP
+5V FIL
BEEP
Q64 DTC144EU
15 11
N/W 13
SW
4
SPEED
D/A PLLT
14 21
1
IC5 Q25 DTC144EU
M62363FP Q26 DTA114EU
10
2 3
Q505
+5V 9 22 +5V
DTC144EU
/NWC
NOIS N/W
LIMIT
CTRL
AMP
LPF
Ref MOD
Q9, Q10
IC21A
2SC4081R
DCK
TA75W01FU
DDA
DSTB
EPTT, RSSI
CDEC, DIM
HFSW, PASP
SP,HORN, PA
BEEP, MCON
MODS
CPU
Q504
2SK1069
IC20
CENC
HD64F3437F16
BUFF
X502
PBRC3.58A
IC501
LC7366NM
DTMF DTMF
ENCODE
DATA
I/F
IC26 TC7W04FU
IC505 BU4066BCFV
Q50 DATA114EU
Q51 DTC114EU
Q507 DTC144EU
D37 1SS355 X4
9.8304MHz
CPU5V SHIFT
RESET
SW
IC19 S-80742SL
Q48 2SC4116
D503
D36 1SS355
MA77
R8V
RF
BPF BPF BPF BPF BPF
ATT
AMP
Q1
3SK166
IC2b
Q518 DTC114EU
D513 MA77
LO
ATT
RSSI
AMP
CONT
+20V
TUNE
T8V MT8V MT8V
BUFF
D17 MA77
D18 MA77
Q29 2SK1069
VRX LO
VCO TX/RX DRIVE
BUFF
SW SW AMP AMP
Q22 DTC144YU
Q27 DTA144EU
Q17
Q16 Q15
2SC5107
2SC3356 2SC4703
Q21 2SC5110
D19, D20
RX
1SV217
VCO
Q23 2SC5110 +8V +8V
D21, D22 1SV217
D46 IT365
MOD
TX
BUFF BUFF ATT
VCO
Q19 2SC5110
Q20
2SC5110
VTX VCO
Q24 DTC114YU
SW
Q28 DTA144EU
+18V +18V FVPP
DC-DC
+20V +5V +8V
IC12
IC18 TC7W04FU
MC145190F Q44 2SK1069
D31 HSU88
PLL D32 MA742
BUFF
IC D33 MA8160
Q18
2SC5110 R8V R8V +5V
+5V
Q36 2SD1664
Q37 2SC4116
TCXO Ref MOD D27 DA204U VRX
UP
SW
X501
MT8V MT8V
12.6MHZ
PCK
Q38 2SD1664
PDA
Q39 DTC114YU
PSTB
Q514
UNLK TMUT
D28 DA204U
+8V
THRM TEMP T8V T8V
C.P
Q40 2SD1664
Q41 2SC4116
NWC D29 DA204U
VTX
VPP
VTX
REG CTRL BUS TMUT, VRX
PWON, FVPC
XTXD, XRTS
DATA OPTION BUS
XRXD, XCTS
OPTION CONNECTOR
J6
OPV
SCK CCS BUSY OPT3 OPV2
SI MMUT AFON OPV1 OPV3
SO RMUT OPT1 OPV2 GND
CIRQ AUX OPT2 OPV3 OPT3
OPT2
SIGNALING OPTION BUS OPT1
SIG OUT
BUSY
AUX
MIC IN
MIC OUT
PTTI PTT OUT
PTTO PTT IN
OPS1
OPS2
MAIN UNIT
EEPROM EEPROM
IC27 IC1
X25650S8I MC3372SVM
400–520 MHz
D4
UM9401F
FOR
TX/RX
LPF LPF
SW
REV
T8V
LPF
POW
DET
HV
VCC
PWR APC
AMP CTRL
IC10
IC11
NJM2904V
SC-1323
PSET
APCV
Q12 2SJ377
IC506 S-81250PG
Q14 DTC144EU
Q508 2SK1829
Q509 DTC144EU D509 DAN202U W4
+12V POWER HV
CTRL SW
FVPC PWON
+5V +5
CTRL REG
Q42 2SB1123 IC17
Q43 2SC4081 AN78L05M
D30 1SS355
+8
REG
IC16
TA7808F
VCC
CPU5V HV
SCK
SI
SO
CIRQ
CCS
AFOUT
DISC
RMUT VCC CPU5V
BEEP OUT
AF ON
MMUT
VCC
CPU5V
GND
COMMON LINE
LINE
RX LINE
TX LINE
DATA BUS LINE