Icom IC-718 Service Manual - page 7
TABLE OF CONTENTS
SECTION 1
SPECIFICATIONS
SECTION 2
INSIDE
VIEWS
SECTION
3 DISASSEMBLY INSTRUCTIONS
SECTION 4
CIRCUIT
DESCRIPTION
4 – 1
RECEIVER CIRCUITS ................................................................................................................... 4 – 1
4 – 2
TRANSMITTER CIRCUITS ............................................................................................................ 4 – 4
4 – 3
PLL CIRCUIT ................................................................................................................................. 4 – 5
4 – 4
LOGIC CIRCUITS .......................................................................................................................... 4 – 6
4 – 5
REGULATOR CIRCUITS ................................................................................................................ 4 – 6
SECTION 5
ADJUSTMENT
PROCEDURES
5 – 1 PREPARATION BEFORE SEVICING ............................................................................................. 5 – 1
5 – 2
PLL ADJUSTMENTS....................................................................................................................... 5 – 2
5 – 3
TRANSMITTER ADJUSTMENTS ................................................................................................... 5 – 4
5 – 4
RECEIVER ADJUSTMENTS .......................................................................................................... 5 – 8
5 – 5
SET MODE ADJUSTMENT ............................................................................................................ 5 – 6
SECTION 6
PARTS
LIST
SECTION 7
MECHANICAL PARTS
AND
DISASSEMBLY
SECTION 8
SEMI-CONDUCTOR
INFORMATIONS
SECTION 9
BOARD
LAYOUTS
9 – 1
MAIN UNIT ..................................................................................................................................... 9 – 1
9 – 2
PLL UNIT ........................................................................................................................................ 9 – 2
9 – 3
LOGIC UNIT ................................................................................................................................... 9 – 3
9 – 4
PHONE BOARD.............................................................................................................................. 9 – 3
9 – 5
MIC BOARD.................................................................................................................................... 9 – 3
9 – 6
VR BOARD ..................................................................................................................................... 9 – 3
9 – 7
FILTER UNIT................................................................................................................................... 9 – 5
9 – 8
PA UNIT .......................................................................................................................................... 9 – 7
SECTION 10
BLOCK
DIAGRAM
SECTION 11
WIRING
DIAGRAM
SECTION 12
VOLTAGE
DIAGRAMS