Icom BC-119N Service Manual page 3

SECTION 1
SECTION 2
2-1
2-2
2-3
2-4
2-5
SECTION 3
SECTION 4
SECTION 5
5-1
5-2
SECTION 6
6-1
6-2
SECTION 7
SECTION 8
8-1
8-2
SECTION 9
9-1
9-2
TABLE OF CONTENTS
SPECIFICATIONS
CIRCUIT DESCRIPTION
DC-DC CONVERTOR CIRCUIT (STEP-UP/DOWN CONVERTOR) ...............................2 - 1
CONSTANT-CURRENT CIRCUIT ....................................................................................2 - 1
REGULATOR CIRCUIT ....................................................................................................2 - 1
CHARGING CURRENT AND VOLTAGE CHART ............................................................2 - 2
CPU PORT ALLOCATIONS ............................................................................................2 - 2
ADJUSTMENT PROCEDURES
PARTS LIST
MECHANICAL PARTS AND DISASSEMBLY
BC-119N ...........................................................................................................................5 - 1
BC-121N ...........................................................................................................................5 - 2
SEMI-CONDUCTOR INFORMATION
TRANSISTORS ................................................................................................................6 - 1
DIODES ............................................................................................................................6 - 2
BOARD LAYOUTS
BLOCK DIAGRAM
BC-119N ...........................................................................................................................8 - 1
BC-121N ...........................................................................................................................8 - 2
VOLTAGE DIAGRAM
BC-119N ...........................................................................................................................9 - 1
BC-121N ...........................................................................................................................9 - 2