Icom IC F110S, IC F111S, IC F121S service manual Explicit Definitions

Models: IC F121S IC F110S IC F111S

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EXPLICIT DEFINITIONS

FREQUENCY COVERAGE

136 – 174 MHz

CHANNEL SPACING

 

12.5 kHz/ 25.0 kHz

 

 

Narrow/Wide-type

15.0 kHz/ 30.0 kHz

Narrow/Middle-type

15.0 kHz/ 20.0 kHz

 

 

 

TABLE OF CONTENTS

 

 

 

 

SECTION 1

SPECIFICATIONS

 

SECTION 2

INSIDE VIEW

 

SECTION 3

DISASSEMBLY INSTRUCTIONS

 

SECTION 4

CIRCUIT DESCRIPTION

 

4 - 1

RECEIVER CIRCUITS

4 - 1

4 - 2

TRANSMITTER CIRCUITS

4 - 2

4 - 3

PLL CIRCUITS

4 - 3

4 - 4

POWER SUPPLY CIRCUITS

4 - 4

4 - 5

PORT ALLOCATIONS

4 - 4

SECTION 5

ADJUSTMENT PROCEDURES

 

5 - 1

PREPARATION

5 - 1

5 - 2

PLL ADJUSTMENT

5 - 4

5 - 3

SOFTWARE ADJUSTMENT

5 - 5

5 - 4

TRIMMER ADJUSTMENT

5 - 7

SECTION 6

PARTS LIST

 

SECTION 7

MECHANICAL PARTS

 

SECTION 8

SEMI-CONDUCTOR INFORMATION

 

SECTION 9

BOARD LAYOUTS

 

9 - 1

FRONT UNIT

9 - 1

9 - 2

MAIN UNIT

9 - 3

SECTION 10

BLOCK DIAGRAM

 

SECTION 11

VOLTAGE DIAGRAMS

 

11 - 1 FRONT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1 11 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 2

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Icom IC F110S, IC F111S, IC F121S service manual Explicit Definitions