Icom IC-FR3000 manual Front Unit, Tvco Unit Rvco Unit

Page 48

SECTION 9 BOARD LAYOUTS

9 - 1 FRONT UNIT

¡TOP VIEW

to LCD DS7

J4

GND

A5V

LCDV

RS

R/W

ENA

DB0

DB1

DB2

DB3

DB4

DB5

DB6

DB7

BLV

GND

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

1








		J7

2		CLONE	PTTM	MIC						MONIM
2

	L9V	SPR	MICE				SPG				7
											7
	to SP/MIC

8

LCD

9 - 2 VR UNIT

9 - 3 TVCO UNIT

9 - 4 RVCO UNIT

¡TOP VIEW

to LOGIC UNIT

¡TOP VIEW

¡TOP VIEW

to RX UNIT

J16

J15

J14

GND

L1

NC

AFVRO AFG

AFG AFVRI

SQLG SQLVRO

SQLVRI

LV

MOD

MODC

LV

GND

J6

to TX UNIT

GND

2

4

V9V

1

2 2

1

1

3

RX OUT

J2

J4

J3

J1

NC

L2

7

6

1

3

to LINE

1

J6

J5

J1

R1

VOLUME

SQUELCH

R2

GND

TXOUT

V9V

to TX UNIT

9 - 1

Image 48

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