Icom IC-FR4000 Series, Service Manual

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TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 CIRCUIT DESCRIPTION
3 - 1 RECEIVER CIRCUITS ................................................................................................... 3 - 1
3 - 2 TRANSMITTER CIRCUITS ............................................................................................ 3 - 3
3 - 3 PLL CIRCUITS ................................................................................................................ 3 - 4
3 - 4 OTHER CIRCUITS .......................................................................................................... 3 - 5
3 - 5 POWER SUPPLY CIRCUITS ......................................................................................... 3 - 5
3 - 6 PORT ALLOCATIONS .................................................................................................... 3 - 6
SECTION 4 ADJUSTMENT PROCEDURES
4 - 1 PREPARATION ................................................................................................................ 4 - 1
4 - 2 PLL ADJUSTMENST ...................................................................................................... 4 - 4
4 - 3 RECEIVER ADJUSTMENT ............................................................................................ 4 - 6
4 - 4 SOFTWARE ADJUSTMENT ........................................................................................... 4 - 7
SECTION 5 PARTS LIST
SECTION 6 OPTIONAL UNIT INSTALLATION
SECTION 7 MECHANICAL PARTS AND DISASSEMBLY
SECTION 8 SEMI-CONDUCTOR INFORMATION
SECTION 9 BOARD LAYOUTS
9 - 1 FRONT UNIT ............................................................................................................ 9 - 1
9 - 2 VR UNIT ............................................................................................................ 9 - 1
9 - 3 TVCO UNIT ............................................................................................................ 9 - 1
9 - 4 RVCO UNIT ............................................................................................................ 9 - 1
9 - 5 LOGIC UNIT ............................................................................................................ 9 - 3
9 - 6 RX UNIT ............................................................................................................ 9 - 5
9 - 7 TX UNIT ............................................................................................................ 9 - 7
9 - 8 50PA UNIT [FR4000]............................................................................................. 9 - 9
9 - 9 VARISTER UNIT [FR4000]............................................................................................. 9 - 9
9 - 10 25PA UNIT [FR4100]............................................................................................. 9 - 11
9 - 11 REG UNIT [FR4000]............................................................................................. 9 - 13
9 - 12 JACK1 UNIT [FR4000]............................................................................................. 9 - 13
9 - 13 JACK2 UNIT [FR4000]............................................................................................. 9 - 13
9 - 14 JACK1 UNIT [FR4100]............................................................................................. 9 - 15
9 - 15 JACK2 UNIT [FR4100]............................................................................................. 9 - 15
SECTION 10 BLOCK DIAGRAM
SECTION 11 WIRING DIAGRAM
SECTION 12 VOLTAGE DIAGRAM