Icom IC-FR3000 manual Board Layout, PA Unit

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SECTION 2 INSIDE VIEWS

• BOARD LAYOUT

*: Located under side of this point.

JACK2 unit*

JACK1 unit*

REG unit

PA unit

TX unit

RX unit

LOGIC unit*

FRONT unit

• PA UNIT

Top view

Power amplifier (IC2: S-AV32 50 W type

S-AV33 25 W type)

APC CTRL (IC1: TA75S01F

Q9: DTC143ZU

Q10: DTC114EU)

Pre-drive

(Q4: 2SK3475)

+9 V switch (Q7: DTC114EU Q8: 2SA1362)

+5 V regulator (IC7: TA78L05)

2 - 1

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Contents IC-fr3000 iC-fr3 1 0 Repair Notes IntroductionOrdering Parts Table of Contents General SpecificationsPA Unit Board LayoutBottom view Logic UnitRX Unit TX UnitRF Circuit RX Unit Receiver Circuits2 1ST Mixer and 1ST if Circuits RX Unit 3 2ND if and Demodulator Circuits RX UnitMIC Mute Transmitter CircuitsReceiver Mute Circuits Logic Unit Case of the Dtmf Signals from Dialer IC Case of the 2/5TONE SignalsCase of the Ctcss and Dtcs Signals From the CPU Power Amplifier Circuit PA UnitPLL Circuits Other Circuits Power Supply CircuitsExpander IC Logic Unit IC39 Port AllocationsExpander IC Logic Unit IC40 Expander IC Logic Unit IC415 D/A Converter IC TX Unit IC5 TEL DtcsiBusy MCKPreparation Battery RXRequired Test Equipment MICProcess to the Permit Adjustment Mode Access Before Entering the Adjustment ModeOperating in the Adjustment Mode Entering the Adjustment ModeExiting the Adjustment Mode After Finishing AdjustmentExplanation of LCD Display in the Adjustment Mode Adjustment Mode CH ListWide NarrowIC-FR3000 TOP View PLL AdjustmentTX Unit TOP View RX Unit TOP View CP2 CP4Software Adjustment Output PowerLOW DeviationDtcs 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 Example 2 Duplexer Connection Connection Example 1 Isolater ConnectionExample 3 Duplexer and Isolater Connection ISO Isolater DUP DuplexerMechanical 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 JACK1 Unit REG UnitJACK2 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