Icom IC-FR3000 manual Option Unit Installation

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SECTION 6 OPTION UNIT INSTALLATION

6-1 Opening the repeater’s case

Follow the case and cover opening procedures shown here when an optional unit is installed or adjust the in- ternal units, etc.

CAUTION: DISCONNECT the AC power cable and/or DC power cable from the repeater. Other- wise, there is danger of electric shock and/or equip- ment damage.

qRemove 6 screws from the top of the repeater and 4 screws from the sides, then lift up the top cover.

wTurn the repeater upside down.

eRemove 6 screws from the bottom of the repeater, and 4 screws from the sides, then lift up the bottom cover.

6-2 Voice scrambler unit installation

The UT-109 (#01)/UT-110 (#01) provides high perfor- mance private communication for base operating mode. In order to receive or send scrambled transmis- sions, the UT-109 (#01)/UT-110 (#01) must be installed and to activate the scrambler function.

qRemove the top and bottom covers as shown above.

wRemove 8 screws from the LOGIC shielding plate, then remove the plate.

eCut the pattern on the PCB at the RX AF circuit (CP1) and TX mic circuit (CP2) on the LOGIC unit as shown at right.

NOTE: Be sure to re-solder above disconnected points, otherwise no TX modulation or AF output is available when you remove the scrambler unit.

rTurn the repeater upside down, then install the scrambler unit as shown below.

tReturn the LOGIC shielding plate, top and bottom covers to their original positions.

6 - 1

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