Manuals / Icom / Marine Equipment / Marine Radio

Icom IC-F3GT, IC-F3GS Block Diagram, W/N-type, W-type of GEN, N-type of GEN and EIA/TIA version

Models: IC-F3GS

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: N-type

SECTION 11 BLOCK DIAGRAM

J5 AXN330C038

ANT

D1 1SV307

IC1 UPD3140GS

VCO

D3 MA77

D2 MA77

REF

Q7 2SC5085 Y

D4 MA77

Q403 2SC5107 O

Q3 2SC3585 R44

Q2 2SK2973

Q1 2SK2974

OPTION UNIT

Q6 2SC5107 O

Q4 2SC5107 O

D8 MA77

Q8 2SC5085 Y

2TONE or 5TONE

PLL IC

LOOP

BUFF

BUFF

TX/RX

BUFF

BUFF

PRE

PWR

LPF

ANT

LPF

FIL

SW

DRIVE

AMP

SW

X4 CR-662

FRQCON

(15.3 MHz)

DBAL

Q5 2SC5107 O

MIC, AF, PTT, MMUT

BUFF

IC3A NJM3403AV

D32 RB706F-40

RMUT, AFONOP

Q37 DTA144EU

D33 RB706F-40

SIGOUT

DEV

TXC

APC

PWR

DET

PTT

Q34 2SK880 Y

CONT

Q10 2SC4116 GR

BUFF

PTT

Q17 UN911H

BUFF

BPF

MIC

VCC

(45.9 MHz)

D401 HVU350B

IC2 TA31136FN(D)

Q14 2SC4215 O

D11 HVU350B

Q12 3SK239A

D10 HVU350B

Q15 2SB1132 R

AF

D12 HVU350B

Q16 XP6501 AB

RF

REG

DET

IF DET IC

IF

BPF

BPF

BPF

D26 DAN202K

AMP

AMP

IC5 TA7368F

FI1

Q13 3SK239A

FL-313

SQL

AF

FL-321

BPF

FL-335

T4

AMP

FL-336 [OTHER]

SP

FI2

Q41 2SC4116 GR

only

T3,

T2,

IC10

SFPC450G

W/N SWITCHING

NWC

M62363FP-650C

SFPC450E [OTHER]

CIRCUIT

CFWC450F

T1

T4

D/A

SD

IC10

NOIS

M62363FP-650C

D/A

VCC

VR

5V

IC6

TK11250BM [OTHER]

OPT

CPU5

NJM2870

EXT.MIC

Q18 2SB1132 R

Q19 XP6501 AB

Q20 DTA144EU

+5

S5

CPU5

MIC JACK

REG

S5

CPU

S5

CONT

S5C

IC3B NJM3403AV

IC11 S-80942ANMP-DD6

AF OUT

Q31 DTC144TU

IC4 BU4066BCFV

HPF

RESET

SP

D27 RB706F-40

Q21 2SA1577 Q

CLONE

BUFF

ANALOG

R5

REG

IC12 NJM2904V

SW

R5

R5C

X2 CR-663

CPU

SP JACK

IC3C NJM3403AV

IC3D NJM3403AV

LPF

LCD

PRE

MIC

LPF

Q22 2SA1577 Q

IC8 HD6433876B44H

ENPHA

AMP

T5

REG

(9.2 MHz)

Q35 2SC4116 GR

T5

T5C

CTCSS

LPF

DTCS

VCC

CTCSS

Q36 2SC4116 GR

DTMF

TONE

BUFF

MTONE

POWER SW

RMUT

MMUT

BATT

KEY

BDET

MATRIX

EEPROM

GND

IC7

HN58X2432TI [OTHER]

HN58X2464TI

COMMON LINE

RX LINE

NOTE

: W/N-type

: W-type of [GEN]

: N-type

: N-type of [GEN] and EIA/TIA version

TX LINE

: N-type of ETS/CEPT version

: 100 channel version

11 - 1

Image 77

Icom IC-F3GT Block Diagram, W/N-type, W-type of GEN, N-type of GEN and EIA/TIA version, N-type of ETS/CEPT version

Contents

VHF FM TRANSCEIVERS SERVICE MANUALDANGER INTRODUCTIONORDERING PARTS REPAIR NOTESTABLE OF CONTENTS SECTION SPECIFICATIONSETS 300 EIA/TIABOTTOM VIEW SECTION 2 INSIDE VIEWSMAIN UNIT TOP VIEW 3-1 DISASSEMBLY INSTRUCTION SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONSREMOVING THE CHASSIS PANEL REMOVING THE MAIN UNITRemove the option cover 3-2 OPTIONAL UNIT INSTALLATIONS4-1 RECEIVER CIRCUITS SECTION 4 CIRCUIT DESCRIPTION4-1-1 ANTENNA SWITCHING CIRCUIT 4-1-2 RF CIRCUIT4-1-7 WIDE AND NARROW SWITCHING CIRCUIT 4-2 TRANSMITTER CIRCUITS4-2-3 DRIVE/POWER AMPLIFIER CIRCUITS 4-1-5 AF CIRCUIT4-4 POWER SUPPLY CIRCUITS VOLTAGE LINE 4-3 PLL CIRCUITPLL circuit LINE4-5-1 CPU IC8 4-5 PORT ALLOCATIONSCPU IC8-continued 4-5-2 OUTPUT EXPANDER IC IC105-1 PREPARATION SECTION 5 ADJUSTMENT PROCEDURESSTARTING SOFTWARE ADJUSTMENT ADJUSTMENT SOFTWARE INSTALLATIONScreen display exampe RF Power High¥ JIG cable CS-F3G ADJ Rev.2.0Connection ¥ DC power cable connectionsTop view ADJUSTMENT 5-2 PLL ADJUSTMENTADJUSTMENT CONDITIONS ADJUSTMENTADJUSTMENT 5-3 SOFTWARE ADJUSTMENTADJUSTMENT CONDITION MEASUREMENTADJUSTMENT SOFTWARE ADJUSTMENT - continuedADJUSTMENT CONDITION MEASUREMENTMAIN UNIT SECTION 6 PARTS LISTMAIN UNIT ORDERMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITCHASSIS UNIT ORDERACCESSORIES SECTION 7 MECHANICAL PARTS AND DISASSEMBLYCHASSIS PARTS MAIN UNITUNIT abbreviation C CHASSIS PARTS, M MAIN UNIT IC-F3GS partsDIODES SECTION 8 SEMI-CONDUCTOR INFORMATIONTRANSISTOR AND FET’S MAIN UNIT TOP VIEW SECTION 9 BOARD LAYOUTS9-1 GENERAL AND EIA/TIA VERSIONS EXCEPT W/N-TYPE OPTION R143B5386H ICOMMAIN UNIT TOP VIEW 9-2 ETS/CEPT VERSIONR143 B5571CICOM to the OPTIONAL unitDS1 C255 VHF W/N9-3 W/N-TYPE MAIN UNIT TOP VIEWBUSY B5687AOPTION ICOM10-2 DISASSEMBLY INFORMATION 10-1 PARTS LISTSECTION 10 BC-137 OPTIONAL DESKTOP CHARGER INFORMASION MAIN UNIT10-4 BOARD LAYOUT 10-3 VOLTAGE DIAGRAM2SB1201 S RN2404W/N-type SECTION 11 BLOCK DIAGRAMETS/CEPT version W-type of GENSECTION 12 VOLTAGE DIAGRAM A L-band of ETS/CEPT version Page SECTION VOLTAGE DIAGRAMP81/AN1 P82/AN2 P83/AN3 P84/AN4 P85/AN5 P86/AN6 P87/AN7Page 2000 Icom Inc 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, JapanS-13713IZ-C1V SERVICE MANUAL UHF FM TRANSCEIVERSDANGER INTRODUCTIONORDERING PARTS REPAIR NOTESTABLE OF CONTENTS SECTION SPECIFICATIONSETS 300 EIA/TIASECTION 2 INSIDE VIEWS Antenna switcing circuit D2, D8 MA77 Power amplifier Q1 2SK2974 APCMAIN UNIT TOP VIEW BOTTOM VIEW3-1 DISASSEMBLY INSTRUCTION SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONSREMOVING THE CHASSIS PANEL REMOVING THE MAIN UNIT3 Replace the option cover to the chassis-hole 3-2 OPTIONAL UNIT INSTALLATIONS1 Remove the option cover SECTION 4 CIRCUIT DESCRIPTION 4-1-1 ANTENNA SWITCHING CIRCUIT4-1 RECEIVER CIRCUITS 4-1-2 RF CIRCUIT4-2-3 DRIVE/POWER AMPLIFIER CIRCUITS 4-1-7 WIDE AND NARROW SWITCHING CIRCUIT4-2 TRANSMITTER CIRCUITS 4-1-5 AF CIRCUIT4-3 PLL CIRCUIT 4-4 POWER SUPPLY CIRCUITS VOLTAGE LINEPLL CIRCUIT LINE4-5-1 CPU IC8 4-5 PORT ALLOCATIONSCPU IC8-continued 4-5-2 OUTPUT EXPANDER IC IC10STARTING SOFTWARE ADJUSTMENT SECTION 5 ADJUSTMENT PROCEDURESADJUSTMENT SOFTWARE INSTALLATION 5-1 PREPARATIONSQL Lev SCREEN DISPLAY EXAMPLEJIG CABLE Top view DC POWER CABLE CONNECTIONSCONNECTION computerADJUSTMENT 5-2 PLL ADJUSTMENTADJUSTMENT CONDITIONS ADJUSTMENTADJUSTMENT 5-3 SOFTWARE ADJUSTMENTADJUSTMENT CONDITION MEASUREMENTADJUSTMENT SOFTWARE ADJUSTMENT - continuedADJUSTMENT CONDITION MEASUREMENTMAIN UNIT SECTION 6 PARTS LISTMAIN UNIT ORDERMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONMAIN UNIT MAIN UNITORDER DESCRIPTIONDESCRIPTION MAIN UNITORDER ACCESSORIES SECTION 7 MECHANICAL PARTS AND DISASSEMBLYCHASSIS PARTS MAIN UNITEP2 M MAIN unit IC-F4GS partsDIODES SECTION 8 SEMI-CONDUCTOR INFORMATIONTRANSISTOR AND FET’S SECTION 9 BOARD LAYOUTS 9-1 LOW BANDU H F MAIN UNIT TOP VIEWR143 MAIN UNIT TOP VIEW 9-2 440-470 MHz BAND EXCEPT W/N-TYPEU H F ICOM MAIN UNIT TOP VIEW 9-3 470-500 MHz AND HIGH BANDSthe OPTIONAL unit J5 toMAIN UNIT TOP VIEW 9-4 W/N-TYPER143 10-2 DISASSEMBLY INFORMATION 10-1 PARTS LISTSECTION 10 BC-137 OPTIONAL DESKTOP CHARGER INFORMASION MAIN UNIT10-4 BOARD LAYOUT 10-3 VOLTAGE DIAGRAMW/N-type SECTION 11 BLOCK DIAGRAMW-type of GEN N-typeSECTION VOLTAGE DIAGRAMTx 2.19 Tx 4.8447 P 47 P OTHER SECTION VOLTAGE DIAGRAMCPU5 DTMF MTONE CPU5 BDET PTT CTCIN CPU5Page 2000 Icom Inc 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, JapanS-13713IZ-C1U