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Icom IC-F3GS, IC-F3GT service manual 32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan

Models: IC-F3GT IC-F3GS

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Specs Install Parts list Voltage Diagram RF signal From PLL Driver Accessories Disassembly Instruction Adjustment Procedures PLL Adjustment Power supply requirement

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	S-13713IZ-C1V-
1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan	© 2000 Icom Inc.

Page 39 Page 41

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Icom IC-F3GS, IC-F3GT service manual 32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan

Page 39 Page 41

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Contents

VHF FM Transceivers Ordering Parts IntroductionRepair Notes Table of Contents Section Specifications EIA/TIA Main Unit TOP View Inside ViewsBottom View Disassembly and Option Instructions Disassembly InstructionRemoving the Chassis Panel Removing the Main Unit Optional Unit Installations Circuit Description Receiver Circuits Transmitter Circuits Power Supply Circuits Voltage Line PLL Circuit Port Allocations Output Expander IC IC10 Adjustment Procedures Preparation ¥ JIG cable Top view PLL Adjustment Software Adjustment TXF Software Adjustment Parts List Main Unit Variable Thermistor NTCCM20124AG473J-T Tantalum ECST0JY106R Chassis Unit Accessories Mechanical Parts and DisassemblyChassis Parts IC-F3GS parts Transistor and FET’S SEMI-CONDUCTOR InformationDiodes Board Layouts General and EIA/TIA Versions Except W/N-TYPE MP6 Main Unit Bottom View IC1 ETS/CEPT Version MP5 VHF FI1 Parts List Disassembly InformationBC-137 Optional Desktop Charger Informasion Convenient Voltage Diagram Board Layout Block Diagram Option Unit Voltage Diagram BU4066BCFV Band of ETS/CEPT version N-type DTA144EU Section Voltage Diagram Avref Vtref Toned Tonem AvccPage 32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan UHF FM Transceivers IC-F4GTIC-F4GS Preparation PLL Adjustment Software Adjustment Power supply requirement APC IC3A NJM3403AV Disassembly and Option Instructions Optional Unit Installations 2ND if and Demodulator Circuits RF signal From PLL Driver PLL Circuit Power Supply Circuits Voltage Line Resistor R132 PTT Adjustment Procedures Screen Display Example DC Power Cable Connections L405 L11 Powerlo BPF T1 NJM3403AV-TE1 IC4 Resistor ERJ2GE Thermistor NTCCM1608 4LH 223KC Ceramic ECUE1H470JCQ ECEV1CA470SP Other Ceramic ECJ0EB1E471K Band MHz band MHz and H-band IC-F4GS parts DTA144 EU DTC144 EE DTC144 EU DTC144 TU LOW Band DS1 FI1 440-470 MHz Band Except W/N-TYPE Icom 470-500 MHz and High Bands B5542B C308 Q19 B5688B BC-137 Optional Desktop Charger Informasion Voltage Diagram Type Type of GEN Type of GEN and EIA/TIA version NJM3403AV M1-band of GEN and EIA/TIA version G W-type of GEN Type 2SC3585 R44 Q403 2SC5107 O Band of ETS/CEPT version N-type M1 440-470 MHz-band Page 13713IZ-C1U

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