Icom IC-FR3000 manual RX Unit

Page 52

9 - 6 RX UNIT

¡TOP VIEW

RX ANT

W12

J1

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

1

GND

2

RX OUT

3	V9V
4	GND

5

LV

6

GND

				to LOGIC UNIT J1
21									1
	NDET SQL GND RVCON RSSI RUNLK GND SDTO GND				M9V		GND		J2
22	GND	GND	DISC	TUNE RLV W/NS R9C RPLSTB SCK M9V		GND		2
22								2

9 - 5

Image 52

Contents IC-fr3000 iC-fr3 1 0 Ordering Parts IntroductionRepair Notes Table of Contents Specifications GeneralBoard Layout PA UnitLogic Unit Bottom viewTX Unit RX UnitReceiver Circuits RF Circuit RX Unit2 1ST Mixer and 1ST if Circuits RX Unit 3 2ND if and Demodulator Circuits RX UnitReceiver Mute Circuits Logic Unit Transmitter CircuitsMIC Mute Case of the 2/5TONE Signals Case of the Dtmf Signals from Dialer ICCase of the Ctcss and Dtcs Signals From the CPU Power Amplifier Circuit PA UnitPLL Circuits Power Supply Circuits Other CircuitsPort Allocations Expander IC Logic Unit IC39Expander IC Logic Unit IC40 Expander IC Logic Unit IC415 D/A Converter IC TX Unit IC5 Dtcsi TELBusy MCKBattery RX PreparationRequired Test Equipment MICBefore Entering the Adjustment Mode Process to the Permit Adjustment Mode AccessEntering the Adjustment Mode Operating in the Adjustment ModeExiting the Adjustment Mode After Finishing AdjustmentAdjustment Mode CH List Explanation of LCD Display in the Adjustment ModeWide NarrowPLL Adjustment IC-FR3000 TOP ViewTX Unit TOP View RX Unit TOP View CP2 CP4Software Adjustment Power OutputLOW DeviationCtcss DtcsSection Parts List REG UnitFront Unit Logic UnitBridge Resistor ERJ12YJ390U ECEV1CA100SR ECEV1CA220SR Tantalum Teesva 1V 104M8L RX Unit Tantalum Teesva 1V 224M8L Rvco Unit TX Unit Tvco Unit PA Unit VR Unit JACK1 UnitJACK2 Unit Chassis UnitOption Unit Installation Duplexer and isolater installation Connection Example 1 Isolater Connection Example 2 Duplexer ConnectionExample 3 Duplexer and Isolater Connection ISO Isolater DUP DuplexerMechanical Parts and Disassembly Front Unit REG Unit Rvco Unit SEMI-CONDUCTOR Information Transistors and FetsDiodes Front Unit Tvco Unit Rvco UnitRvco Unit Tvco Unit VR Unit ¡BOTTOM ViewLogic Unit BoardGND 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