Icom IC-FR3000 manual TX Unit

Page 55

TX UNIT

¡BOTTOM VIEW

The combination of this page and the previous page shows the unit layout in the same configuration as the actual P.C. Board.

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Image 55

Contents IC-fr3000 iC-fr3 1 0 Ordering Parts IntroductionRepair Notes Table of Contents General SpecificationsPA Unit Board LayoutBottom view Logic UnitRX Unit TX Unit3 2ND if and Demodulator Circuits RX Unit Receiver CircuitsRF Circuit RX Unit 2 1ST Mixer and 1ST if Circuits RX UnitReceiver Mute Circuits Logic Unit Transmitter CircuitsMIC Mute Power Amplifier Circuit PA Unit Case of the 2/5TONE SignalsCase of the Dtmf Signals from Dialer IC Case of the Ctcss and Dtcs Signals From the CPUPLL Circuits Other Circuits Power Supply CircuitsExpander IC Logic Unit IC41 Port AllocationsExpander IC Logic Unit IC39 Expander IC Logic Unit IC405 D/A Converter IC TX Unit IC5 MCK DtcsiTEL BusyMIC Battery RXPreparation Required Test EquipmentProcess to the Permit Adjustment Mode Access Before Entering the Adjustment ModeAfter Finishing Adjustment Entering the Adjustment ModeOperating in the Adjustment Mode Exiting the Adjustment ModeNarrow Adjustment Mode CH ListExplanation of LCD Display in the Adjustment Mode WideCP4 PLL AdjustmentIC-FR3000 TOP View TX Unit TOP View RX Unit TOP View CP2Software Adjustment Deviation PowerOutput LOWDtcs CtcssREG Unit Section Parts ListLogic Unit Front UnitBridge Resistor ERJ12YJ390U ECEV1CA100SR ECEV1CA220SR Tantalum Teesva 1V 104M8L RX Unit Tantalum Teesva 1V 224M8L Rvco Unit TX Unit Tvco Unit PA Unit JACK1 Unit VR UnitChassis Unit JACK2 UnitOption Unit Installation Duplexer and isolater installation ISO Isolater DUP Duplexer Connection Example 1 Isolater ConnectionExample 2 Duplexer Connection Example 3 Duplexer and Isolater ConnectionMechanical Parts and Disassembly Front Unit REG Unit Rvco Unit Transistors and Fets SEMI-CONDUCTOR InformationDiodes Tvco Unit Rvco Unit Front Unit¡BOTTOM View Rvco Unit Tvco Unit VR UnitBoard Logic UnitGND TMUTE1 Txaf Tone TMUTE2 Patemp Rvswr Fwswr RX Unit RX Unit TX Unit TX Unit PA Unit PA Unit REG Unit JACK2 Unit REG UnitJACK1 Unit Block Diagram PA Unit Wiring Diagram Section Voltage Diagram Rvco Unit TX Unit PA Unit Unit Logic Unit Chassis Unit Icom New Zealand 32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan