Manuals / Icom / Marine Equipment / Marine Radio

Icom IC-F3GT, IC-F3GS service manual

Models: IC-F3GS

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Contents

VHF FM TRANSCEIVERS SERVICE MANUALREPAIR NOTES INTRODUCTIONDANGER ORDERING PARTSTABLE OF CONTENTS EIA/TIA SPECIFICATIONSSECTION ETS 300SECTION 2 INSIDE VIEWS MAIN UNIT TOP VIEWBOTTOM VIEW REMOVING THE MAIN UNIT SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS3-1 DISASSEMBLY INSTRUCTION REMOVING THE CHASSIS PANELRemove the option cover 3-2 OPTIONAL UNIT INSTALLATIONS4-1-2 RF CIRCUIT SECTION 4 CIRCUIT DESCRIPTION4-1 RECEIVER CIRCUITS 4-1-1 ANTENNA SWITCHING CIRCUIT4-1-5 AF CIRCUIT 4-2 TRANSMITTER CIRCUITS4-1-7 WIDE AND NARROW SWITCHING CIRCUIT 4-2-3 DRIVE/POWER AMPLIFIER CIRCUITSLINE 4-3 PLL CIRCUIT4-4 POWER SUPPLY CIRCUITS VOLTAGE LINE PLL circuit4-5-2 OUTPUT EXPANDER IC IC10 4-5 PORT ALLOCATIONS4-5-1 CPU IC8 CPU IC8-continuedADJUSTMENT SOFTWARE INSTALLATION SECTION 5 ADJUSTMENT PROCEDURES5-1 PREPARATION STARTING SOFTWARE ADJUSTMENTCS-F3G ADJ Rev.2.0 RF Power HighScreen display exampe ¥ JIG cable¥ DC power cable connections Top viewConnection ADJUSTMENT 5-2 PLL ADJUSTMENTADJUSTMENT ADJUSTMENT CONDITIONSMEASUREMENT 5-3 SOFTWARE ADJUSTMENTADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT SOFTWARE ADJUSTMENT - continuedADJUSTMENT ADJUSTMENT CONDITIONORDER SECTION 6 PARTS LISTMAIN UNIT MAIN UNITDESCRIPTION MAIN UNITMAIN UNIT ORDERDESCRIPTION MAIN UNITMAIN UNIT ORDERDESCRIPTION MAIN UNITMAIN UNIT ORDERORDER MAIN UNITMAIN UNIT CHASSIS UNITMAIN UNIT SECTION 7 MECHANICAL PARTS AND DISASSEMBLYACCESSORIES CHASSIS PARTSUNIT abbreviation C CHASSIS PARTS, M MAIN UNIT IC-F3GS partsSECTION 8 SEMI-CONDUCTOR INFORMATION TRANSISTOR AND FET’SDIODES SECTION 9 BOARD LAYOUTS 9-1 GENERAL AND EIA/TIA VERSIONS EXCEPT W/N-TYPEMAIN UNIT TOP VIEW ICOM R143OPTION B5386HMAIN UNIT TOP VIEW 9-2 ETS/CEPT VERSIONto the OPTIONAL unit B5571CR143 ICOMMAIN UNIT TOP VIEW VHF W/NDS1 C255 9-3 W/N-TYPEICOM B5687ABUSY OPTIONMAIN UNIT 10-1 PARTS LIST10-2 DISASSEMBLY INFORMATION SECTION 10 BC-137 OPTIONAL DESKTOP CHARGER INFORMASIONRN2404 10-3 VOLTAGE DIAGRAM10-4 BOARD LAYOUT 2SB1201 SW-type of GEN SECTION 11 BLOCK DIAGRAMW/N-type ETS/CEPT versionSECTION 12 VOLTAGE DIAGRAM A L-band of ETS/CEPT version Page P86/AN6 P87/AN7 VOLTAGE DIAGRAMSECTION P81/AN1 P82/AN2 P83/AN3 P84/AN4 P85/AN5Page 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan S-13713IZ-C1V2000 Icom Inc SERVICE MANUAL UHF FM TRANSCEIVERSREPAIR NOTES INTRODUCTIONDANGER ORDERING PARTSTABLE OF CONTENTS EIA/TIA SPECIFICATIONSSECTION ETS 300BOTTOM VIEW Antenna switcing circuit D2, D8 MA77 Power amplifier Q1 2SK2974 APCSECTION 2 INSIDE VIEWS MAIN UNIT TOP VIEWREMOVING THE MAIN UNIT SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS3-1 DISASSEMBLY INSTRUCTION REMOVING THE CHASSIS PANEL3-2 OPTIONAL UNIT INSTALLATIONS 1 Remove the option cover3 Replace the option cover to the chassis-hole 4-1-2 RF CIRCUIT 4-1-1 ANTENNA SWITCHING CIRCUITSECTION 4 CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS4-1-5 AF CIRCUIT 4-1-7 WIDE AND NARROW SWITCHING CIRCUIT4-2-3 DRIVE/POWER AMPLIFIER CIRCUITS 4-2 TRANSMITTER CIRCUITSLINE 4-4 POWER SUPPLY CIRCUITS VOLTAGE LINE4-3 PLL CIRCUIT PLL CIRCUIT4-5-2 OUTPUT EXPANDER IC IC10 4-5 PORT ALLOCATIONS4-5-1 CPU IC8 CPU IC8-continued5-1 PREPARATION SECTION 5 ADJUSTMENT PROCEDURESSTARTING SOFTWARE ADJUSTMENT ADJUSTMENT SOFTWARE INSTALLATIONSCREEN DISPLAY EXAMPLE JIG CABLESQL Lev computer DC POWER CABLE CONNECTIONSTop view CONNECTIONADJUSTMENT 5-2 PLL ADJUSTMENTADJUSTMENT ADJUSTMENT CONDITIONSMEASUREMENT 5-3 SOFTWARE ADJUSTMENTADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT SOFTWARE ADJUSTMENT - continuedADJUSTMENT ADJUSTMENT CONDITIONORDER SECTION 6 PARTS LISTMAIN UNIT MAIN UNITDESCRIPTION MAIN UNITMAIN UNIT ORDERDESCRIPTION MAIN UNITMAIN UNIT ORDERDESCRIPTION MAIN UNITMAIN UNIT ORDERDESCRIPTION MAIN UNITMAIN UNIT ORDERMAIN UNIT ORDERDESCRIPTION MAIN UNIT SECTION 7 MECHANICAL PARTS AND DISASSEMBLYACCESSORIES CHASSIS PARTSEP2 M MAIN unit IC-F4GS partsSECTION 8 SEMI-CONDUCTOR INFORMATION TRANSISTOR AND FET’SDIODES MAIN UNIT TOP VIEW 9-1 LOW BANDSECTION 9 BOARD LAYOUTS U H FR143 9-2 440-470 MHz BAND EXCEPT W/N-TYPE U H FMAIN UNIT TOP VIEW 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 MAIN UNIT 10-1 PARTS LIST10-2 DISASSEMBLY INFORMATION SECTION 10 BC-137 OPTIONAL DESKTOP CHARGER INFORMASION10-4 BOARD LAYOUT 10-3 VOLTAGE DIAGRAMN-type SECTION 11 BLOCK DIAGRAMW/N-type W-type of GENTx 4.84 VOLTAGE DIAGRAMSECTION Tx 2.1947 P 47 P OTHER BDET PTT CTCIN CPU5 VOLTAGE DIAGRAMSECTION CPU5 DTMF MTONE CPU5Page 1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan S-13713IZ-C1U2000 Icom Inc