Icom IC-FR3000 manual PA Unit

Page 57

PA UNIT

¡BOTTOM VIEW

IC2

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

	EP1			EP2
	to REG UNIT	GND	VCC1	to REG UNIT
	EP8	GND	VCC1	EP7
	EP8			EP7

TXRFIN GND

W1

to TX UNIT J1

9 - 10

Image 57

Contents IC-fr3000 iC-fr3 1 0 Introduction Ordering PartsRepair Notes 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 UnitTransmitter Circuits Receiver Mute Circuits Logic UnitMIC Mute 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 REG Unit JACK2 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