Icom IC-FR3000 manual Logic Unit, Board

Page 50

9 - 5 LOGIC UNIT

¡TOP VIEW

	The combination of this page and the next page shows
	the unit layout in the same configuration as the actual
to JACK1 UNIT J3	P.C. Board.
to JACK1 UNIT J3

7

1

to VR UNIT J1

SQLVRI

SQLVRO

SQLG

AFVRI

AFG

AFG

AFVRO

3

SQLVRI

SQLVRO

SQLG

1

1

AFVRI

AFG

2

2

AFG

AFVRO

1

J14

J15

J16

3

4

5

6 7 8 9 10111213

to JACK2 UNIT J2

to JACK2 UNIT J3

1

SP

SPG

–PTT

+PTT

–AFOUT

+AFOUT

–EXTMOD

+EXTMOD

+BUSY

–BUSY

GND

11

1

BUSYOUT

TXOUT

COAXSW

M/SO

M/SI

D0 D1/CTS

D2/RTS D3/DTO D4/DTI

ER/B

EPT2

EMONI

1

+E15V

DCGND

DISCOUT

AFGND

AFOUT

AFGND EMOD2

EMODG EMOD3 EMODG

EDTCS

EMODG

RSSI

13

13

J9

J11

J10

3

1

1

1

J13

9 - 3

3 1

L2 TELG L1

to FRONT UNIT J8

Image 50

Contents IC-fr3000 iC-fr3 1 0 Repair Notes IntroductionOrdering Parts Table of Contents Specifications GeneralBoard Layout PA UnitLogic Unit Bottom viewTX Unit RX Unit2 1ST Mixer and 1ST if Circuits RX Unit Receiver CircuitsRF Circuit RX Unit 3 2ND if and Demodulator Circuits RX UnitMIC Mute Transmitter CircuitsReceiver Mute Circuits Logic Unit Case of the Ctcss and Dtcs Signals From the CPU Case of the 2/5TONE SignalsCase of the Dtmf Signals from Dialer IC Power Amplifier Circuit PA UnitPLL Circuits Power Supply Circuits Other CircuitsExpander IC Logic Unit IC40 Port AllocationsExpander IC Logic Unit IC39 Expander IC Logic Unit IC415 D/A Converter IC TX Unit IC5 Busy DtcsiTEL MCKRequired Test Equipment Battery RXPreparation MICBefore Entering the Adjustment Mode Process to the Permit Adjustment Mode AccessExiting the Adjustment Mode Entering the Adjustment ModeOperating in the Adjustment Mode After Finishing AdjustmentWide Adjustment Mode CH ListExplanation of LCD Display in the Adjustment Mode NarrowTX Unit TOP View RX Unit TOP View CP2 PLL AdjustmentIC-FR3000 TOP View CP4Software Adjustment LOW PowerOutput 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 Example 3 Duplexer and Isolater Connection Connection Example 1 Isolater ConnectionExample 2 Duplexer 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 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