Icom IC-4008MKII service manual Table of Contents

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TABLE OF CONTENTS

SECTION

1

SPECIFICATIONS

 

SECTION

2

INSIDE VIEWS

 

SECTION

3

DISASEMBLY INSTRUCTION

 

SECTION

4

CIRCUIT DESCRIPTION

 

 

4-1

RECEIVER CIRCUITS

4-1

 

4-2

TRANSMITER CIRCUITS

4-2

 

4-3

PLL CIRCUITS

4-2

 

4-4

POWER SUPPLY CIRCUITS

4-3

 

4-5

PORT ALLOCATIONS

4-3

SECTION

5

ADJUSTMENT PROCEDURES

 

 

5-1

PREPARATION

5-1

 

5-2

ADJUSTMENT

5-2

SECTION

6

PARTS LIST

 

SECTION

7

MECHANICAL PARTS AND DISASSEMBLY

 

 

7-1

CABINET PARTS

7-1

 

7-2

ACCESSORIES

7-1

SECTION

8

SEMI-CONDUCTOR INFORMATION

 

SECTION

9

BOARD LAYOUTS

 

 

9-1

MAIN UNIT

9-1

 

9-2

RF UNIT

9-5

SECTION 10 BLOCK DIAGRAM

SECTION 11 VOLTAGE DIAGRAM

11-1 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1 11-2 RF UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-2

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Contents UHF FM Transceiver LPD FM Transceiver Introduction Ordering PartsRepair Notes Table of Contents ITA, ITA-1 CSA, CSA-1 Section SpecificationsCtcss Frequency List Channel Frequency ListInside Views Main UnitRF Unit Removing the RF Unit Disasembly InstructionsRemoving the Rear Panel Removing the Main UnitRF Circuit RF Unit Antenna Switching Circuit RF UnitCircuit Description Receiver CircuitsPLL Circuits RF Unit Transmitter CircuitsPower Supply Circuits Voltage Line Port AllocationsCPU Main unit IC1 Required Test Equipment Section Adjustment ProceduresEntering the Adjustment Mode PreparationDeviation AdjustmentTest C63R206 R50Order Description Section Parts ListRF Board Coil Eljre 18NG-F C211 4030006860 Mechanical Parts and Disassembly AccessoriesCabinet Parts Chassis Parts Unit abbreviation C Chassis PARTS, RF RF UNIT, M Main Unit SEMI-CONDUCTOR Information Transistor and FET’SDiodes Board Layouts Main UnitTOP View IC-4008A Bottom View IC-4008A R58C55 C17 R23 C18 C52 PSC Batt MOD VOL GND TOP View RF UnitBottom View FI3IC1 Block DiagramDTA144EU Voltage DiagramRF Unit 16, Kamihigashi, Hirano-ku, Osaka 547-0002, Japan 16, Kamihigashi, Hirano-ku, Osaka, 547-0002, Japan