Icom IC F111S, IC F110S, IC F121S service manual Low Band 400-430 MHz High Band 440-490 MHz

EXPLICIT DEFINITIONS

FREQUENCY COVERAGE

Low Band	400-430 MHz
High Band	440-490 MHz

CHANNEL SPACING

Narrow/Wide-type	12.5 kHz/ 25.0 kHz
Narrow/Middle-type	12.5 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