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SCHEMATIC DIAGRAMS

To upgrade quality, some components may be 
subject to change without notice.

A-7290-3EX-

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Printed in Japan
© 2015–2016 Icom Inc.

 

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ALC-CTRL

Q3275/Q3276

2SK3018/KTC4075

LDTC143EE

Q101

SW

CTRL

HPR2S

ALCL

ATT

ALC
AMP

PRE
AMP

2SC3356

Q1411
Q1412/Q1413 LDTC143 x2

LPF

FORLP

PHASEI

POCV

HATOF13

PHASE

DET

ALC
AMP

HSENI

SWR
DET

EALC

HAT13

EALC

ALC
AMP

B0

REFLP

APC
AMP

SW

ALC-CTRL

Q3275/Q3276

2SK3018/KTC4075

BUFF

SWRL

ANTENNA

APC
AMP

ALC

NASBS

ICCV

ATT

YGR
AMP

BGA2866

IC1031

IDL

METER

AMP

HPR1S

IMPI

AMS

BUFF

HPOF13

RF

SW11

DRIDV

LPF

SW11

THML

LPF

SW11

DRIVE

AMP

CTRL

Q771-Q777
LDTC143 x7
Q781-Q787
LDTA123 x7

LPF

HFID1V

L5

J20012

1
2
3
4

BIAS

L6

SW11

SW11

PWR
AMP

Q131/Q132
RD70HVF1 x2

L4

SW11

HFID2V

L1

LPF

BIAS

+9

REG

SW11

BIAS

SW11

HEAT

SENS

SW11

SW11

DRIVE

PRE

LPF

SW11

SW11

SW11

L7

L2

T9V

EKEY
ESTA

LPF

LPF

L3

SW11

[DC 13.8V]

REVERSE
CONNECT
PROTECT

IDL

ID

DET

SW12

PWRS

CTRL

1

2

BIAS

RF
AMP

T9V

ATT

D961/D962
LRB751Sx2

PWR/SWR

DET

FORLP

BUFF

BUFF

REFLP

DRESH

SN74AHC595PWx3

IC1301-IC1303

I/O
EXP

HATOFS

HATTS

HPR2S

HPOFS
HPR1S

B0S
B1S

B3S

B2S

B7S

B6S

B5S

B4S

B8S

SKYS

J851

BU2092FVx4

IC2811-IC2841

I/O
EXP

IREFV

DSHK

MUTE

T9V

LPF

T9V

PIN

D1021

ATT

BAP70Q

ALC

PIN

D1041

ATT

BAP70Q

SN74AHC595PW

IC751

I/O
EXP

HPF

RPPS

ATT

DRIV

+5V
REG

XC6209F502MR

IC1061

TXS

CTRL

Q1061/Q1062
LDTA114/LDTC143

CTRL

TXS

T9V

SW11

SW11

SW11

T/R

Q778
LDTC143

CTRL

CTRL

Q1111-Q1261
LDTC143 x15

CTRL

Q1098/Q1110
LDTC143/LDTA114

HATTS

HATOFS

HPOFS

HAT13

HATOF13

HPON13

CTRL

Q1097/Q1099
LDTC143/LDTA114

CTRL

Q1096/Q1095
LDTC143/LDTA114

CTRL

Q1094 LDTA114

CTRL

Q1093 LDTA114
D1091 L1SS400

CTRL

Q1092 LDTC143

CTRL

Q1091 LDTC143

HPR1S

HPR2S

HPON13

HPR8

HPON13

HPR8

L6S

L1S

L5S

L4S

L3S

RPPS

L2S

L7S

B9S
B10S
B11S
B12S
B11TXS
B12TXS

MUTE

T5V

ATT

DPDDET

BPF

B11

B8

BPF

BPF

B10

BPF

B9

B11TX

B12TX

B12

BPF

BPF

BPF

B1

B7

BPF

BPF

BPF

LPF

B4

B6

BPF

B5

BPF

BPF

B3

BPF

B2

TPWRL

BUFF

BUFF

D1505

IMP

DET

Q1612

MMBD452

MMBD452

D1271

TUNE

NET

2SC4116

TUNER UNIT

2SC4116

Q1611

IC1701

BA2903

MMBD352 X2

HF/50 MHz/70 MHz

D1311/D1312

[SEND]

NJM13403

Q1513

LDTA114
LDTC143

IC1502

NJM13403

Q1562

NJM13403

IC1501

L2SA1576

Q1512

Q1511

NJM13403

RUM002N02

Q1521

IC1501

NJM2904CRB1

IC1501

18dB

IC1501

KTC2875

[ALC]

0.03-1.59 MHz

MCK

14.35-21.45 MHz

0.03-2.0 MHz

2.0-4.0 MHz

RD15HVF1

14V

IC221

PA UNIT

21.45-33.0 MHz

PSTB

BA09FP

MDAT

DRESH

L1-L7

P9V

33.0-76 MHz

Q111

7.3-14.35 MHz

RD01MUS2

Q121

[TUNER]

4.0-7.3 MHz

P9V

D202

DF30SC4M

INA199A2

TJ50S06M3L

14V

Q221

Q222

RUM002N02

HV

2SK2854

Q101

3dB

NJM2904CRB1

IC981
NJM2904CRB1

IC981

MDAT/MCK
/MSTB1

TDAT/TCLK/TOE
TSTB1-TSTB4

[ELEC-KEY]

fc=76 MHz

Q811

D811/D812
BAR64

KTC2875

To the MAIN UNIT

1.60-74.80 MHz

Q1571

L2SC4081

P9V

IC1701

BA2903

IC211

LDTC143/LDTA114

Q341/Q342

x2

Q1051

D1051/D1052
BAR64

L2SC4081

B0-B12TX

B0S-B12TXS

8V

L1S-L7S

LDTA114

Q1561

Q1001 LDTC143
D1001 1SV308

130dB

50.00-54.00 MHz

22.00-29.99 MHz

50.00-54.00 MHz(TX)

30.00-49.99 MHz
54.01-69.99 MHz

70.00-74.80 MHz

70.00-72.00 MHz(TX)

15.00-21.99 MHz

2.00-2.99 MHz

4.50-6.49 MHz

10.00-14.99 MHz

3.00-4.49 MHz

1.60-1.99 MHz

8.00-9.99 MHz

6.50-7.99 MHz

1.60-30.00 MHz

POWER

 DET

D1201
MMBD452

NATT2S
NATT2R

NATT1S
NATT1R

NJM2904CRB1

IC1901
NJM2904CRB1

IC1901

x2

RF UNIT

BLOCK DIAGRAM (BLOCK DIAGRAM-1)

Summary of Contents for IC-7300

Page 1: ...MD SDWP SDCLK SDDAT2 SDDAT0 ACC CIV REMOTE CIVE USB USB PHG MICI MICE PHO FAN FAN SPO NC NC NC NC NC SPO SPE EXT SP USB SPO SPE RF TSTB4 RFCNT EXT 3R3V GND TCLK CNTRS EXT TSTB1 GND 14V 14V NC NC PHASE...

Page 2: ...G1 GND G6 DE YU R0 R5 VLED B5 G2 CLK G7 NC DS1 LCD MUDL MICI SQLS PSEND 8V AFO GND PSEND MICE GND MICI PHO MICE PHOE PHO PHK PHOE GND PBABK PBBBK PCLEK PBAAK PBBAK GND MFK MFDBK MFDAK RIT BOARD PBT BO...

Page 3: ...TA114 CTRL Q1096 Q1095 LDTC143 LDTA114 CTRL Q1094 LDTA114 CTRL Q1093 LDTA114 D1091 L1SS400 CTRL Q1092 LDTC143 CTRL Q1091 LDTC143 HPR1S HPR2S HPON13 HPR8 HPON13 HPR8 L6S L1S L5S L4S L3S RPPS L2S L7S B9...

Page 4: ...EG NJM7808DL1A IC276 LDTC143 Q642 SW 3 REG IC1325 XC6209F332MR 3 REG IC1318 BA033FP AGCV 5V REG XC6209F502MR IC1241 3 REG IC1321 XC6209F332MR FTXS LDTC143 Q1234 SW Q1235 LDTA114 LDTC143 Q1231 SW Q1232...

Page 5: ...MP ATT DISPLAY UNIT FSQS QUICK FLRXD CPU PBAAK PBABK PBBAK PBBBK PCLEK POWER KEY FLTXD FRONT MAINDAK MAINDBK PWRK SCOPE TS FTRAS AUTO_TUNE FUDL RIT 3R3V NOTCH NB PWRK MENU NR 8V SET BKLV TDS RDS R5F10...

Page 6: ...35 36 37 38 39 40 41 42 22 R601 22 R602 22 R603 22 R604 22 R605 22 R606 22 R607 22 R608 22 R609 22 R610 22 R624 100 R611 22 R612 22 R613 22 R614 22 R615 22 R616 22 R617 22 R618 22 R619 22 R620 22 R62...

Page 7: ...1 C53 MPZ1608S601A EP96 0 001 C9 100 R74 10U L251 PWRK 47K R112 1 C111 0 001 C10 1 C203 100 R24 0 1 C122 TPS62110RSAR IC201 1 PGND 2 VIN 3 VIN 4 EN 5 SYNC 6 LBO 7 LBI 8 VINA 9 AGND 10 FB 11 GND 12 GND...

Page 8: ...P2_1 168 P4_8 169 P4_9 170 P4_10 171 P4_11 172 PVcc 173 P4_12 174 Vss 175 P4_13 176 Vcc 177 P4_14 178 P4_15 179 P2_2 180 P2_3 181 P2_4 182 P2_5 183 P2_6 184 PVcc 185 P2_7 186 P2_8 187 Vss 188 P2_9 189...

Page 9: ...RTS 25 RXD 26 TXD 27 DSR 28 DTR MMZ1005B601C EP779 1 C675 SHORT1005 CP602 68U L721 J771 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 150 R801 UMOD MPZ1608S601A EP761 3R3V 27 R631 SHORT...

Page 10: ...2 2 C1010 3 9K R994 18K R913 22 R971 22 R905 HSK1 100K R975 100 R922 0 1 C931 10 C971 CP06S CP971 RTD 1K R902 0 1 C938 0 1 C943 150P C975 PCM1754DBQ IC971 1 BCK 2 DATA 3 LRCK 4 DGND 5 NC 6 VCC 7 VOUT...

Page 11: ...GND 3 Z 4 Y 5 D L2SA1576AR Q1202 220 R1207 47 R1211 180 R1232 560 R1231 LDTA114EE Q1232 FTXS LDTC143ZE Q1234 LDTA114EE Q1235 0 1 C1233 0 1 C1232 XC6209F332MR IC1321 1 VIN 2 VSS 3 CE 4 NC 5 VOUT 49 9 R...

Page 12: ...IFFIO_R24p P20 VREFB5N0 P22 DIFFIO_R23n P21 DIFFIO_R23p N20 DIFFIO_R22n N19 DIFFIO_R22p N17 DIFFIO_R21n N18 DIFFIO_R21p N22 DIFFIO_R20n DEV_OE N21 DIFFIO_R20p DEV_CLRn M22 DIFFIO_R19n M21 DIFFIO_R19p...

Page 13: ...6 1000U L1413 1 C1415 100U L1418 1SV308 D1402 560 R1419 2SC3356L Q1411 560 R1417 100U L1411 1 C1416 1SV308 D1415 1 C1421 1SV308 D1416 LDTC143ZE Q1412 2 2K R1413 1SV308 D1401 1 C1419 100U L1401 1 C1417...

Page 14: ...6 8k R1252 0 1 C1701 R1611 220 R1701 100 3 3k R1251 TSTB3 TOE 100 R1812 47P C1811 0 1 C1809 TSTB4 TCLK 100 R1813 0 1 C1802 47P C1810 0 1 C1807 47P C1815 TDAT 100 R1814 0 1 C1801 0 001 C1816 47P C1814...

Page 15: ...12 0 1 C2422 0 1 C2432 0 1 C2442 0 1 C2452 0 1 C2462 0 1 C2472 0 1 C2482 0 1 C2492 0 1 C2552 0 1 C2562 0 1 C2582 EC2 9TNU RL2211 EC2 9TNU RL2221 J2001 J2002 0 1 C2521 0 1 C2522 0 1 C2524 LDAN222 D2521...

Page 16: ...CE LH C116 0 1 C115 100 R212 0 1 C212 INA199A2 IC211 1 REF 2 GND 3 V 4 IN 5 IN 6 OUT R211 0 001 MMZ1608Y102BT EP121 Q222 RUM002N02 FORLP REFLP 0 1 C351 270 R101 270 R103 18 R102 330P C131 MPZ1608S300A...

Page 17: ...C889 680P C890 100U L880 68P C899 680P C896 0 1 C881 LR 294 L881 680P C885 220P C886 220P C897 680P C888 100U L952 FTR B4CA009Z RL921 KDS122 D920 82P C925 0 1 C921 0 1 C931 FTR B4CA009Z RL920 100U L93...

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