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IC-M88 manual
38
1
38
38
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38 pages, 3.82 Mb
1-1-32,
Kamiminami,
Hirano-ku,
Osaka
547-0003,
Japan
S-13909MZ-C2-
q
©
2002–2004
Icom Inc.
Contents
Page
INTRODUCTION
DANGER
ORDERING PARTS
REPAIR NOTES
TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
VHF MARINE CHANNEL LIST
WX CHANNEL LIST
SECTION 2 INSIDE VIEWS
• LOGIC UNIT
• MAIN UNIT
SECTION 3 DISASSEMBLY INSTRUCTIONS
SECTION 4 CIRCUIT DESCRIPTION
4-1RECEIVER CIRCUITS
4-2TRANSMITTER CIRCUITS
4-3PLL CIRCUIT (MAIN UNIT)
4-4POWER SUPPLY CIRCUITS
4-5PORT ALLOCATIONS
CPU–Continued
4-5-2EXPANDER IC (MAIN UNIT; IC341)
4-5-3D/A CONVERTOR IC (MAIN UNIT; IC251)
SECTION 5 ADJUSTMENT PROCEDURES
5-1PREPARATION
• CONNECTION
CAUTION:
• SCREEN EXAMPLE
NOTE:
5-2SOFTWARE ADJUSTMENT
• MAIN UNIT TOP VIEW
SOFTWARE ADJUSTMENT – continued
SECTION
PARTS LIST
[CHASIS UNIT]
[MAIN UNIT]
Page
Page
SECTION 7 MECHANICAL PARTS AND DISASSEMBLY
VR UNIT
LOGIC UNIT
MAIN UNIT
CHARGER UNIT
SECTION 8 SEMIPARTS-CONDUCTORLISTINFORMATION
8 - 1 TRANSISTORS AND FETs
• MAIN unit and LOGIC unit
• CHARGER unit
8 - 2 DIODES
SECTION 9 BOARD LAYOUTS
9 - 1 CHARGER UNIT (BC-152)
9-2VR UNIT
9-3CONNECTOR UNIT
9-4MAIN UNIT
MAIN UNIT
9-5LOGIC UNIT
LOGIC UNIT
SECTION 10 BLOCK DIAGRAM
VR UNIT
SECTION 11 VOLTAGE DIAGRAM