Icom IC-78 Service Manualvice Man

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Icom IC-78 Service Manualvice Man Manual pdf 3 page image

TABLE OF CONTENTSSECTION 1 SPECIFICATIONSSECTION 2 INSIDE VIEWSSECTION 3 DISASSEMBLY INSTRUCTIONSSECTION 4 CIRCUIT DESCRIPTION4 – 1 RECEIVER CIRCUITS ................................................................................................................. 4 – 14 – 2 TRANSMITTER CIRCUITS .......................................................................................................... 4 – 44 – 3 PLL CIRCUIT ................................................................................................................................ 4 – 64 – 4 LOGIC CIRCUITS ........................................................................................................................ 4 – 64 – 5 POWER SUPPLY CIRCUITS ....................................................................................................... 4 – 8SECTION 5 ADJUSTMENT PROCEDURES5 – 1 PREPARATION BEFORE SERVICING......................................................................................... 5 – 15 – 2 PLL ADJUSTMENT ....................................................................................................................... 5 – 25 – 3 TRANSMITTER ADJUSTMENTS.................................................................................................. 5 – 45 – 4 RECEIVER ADJUSTMENTS ......................................................................................................... 5 – 85 – 5 SET MODE ADJUSTMENT ........................................................................................................... 5 – 10SECTION 6 PARTS LISTSECTION 7 MECHANICAL PARTS AND DISASSEMBLYSECTION 8 SEMI-CONDUCTOR INFORMATIONSSECTION 9 BOARD LAYOUTS9 – 1 MAIN UNIT ................................................................................................................................... 9 – 19 – 2 PA UNIT ......................................................................................................................................... 9 – 39 – 3 PLL UNIT ...................................................................................................................................... 9 – 39 – 4 LOGIC UNIT ................................................................................................................................. 9 – 59 – 5 PHONE BOARD ............................................................................................................................ 9 – 59 – 6 MIC BOARD .................................................................................................................................. 9 – 59 – 7 VR BOARD .................................................................................................................................... 9 – 59 – 8 SENSOR BOARD.......................................................................................................................... 9 – 69 – 9 FILTER UNIT ................................................................................................................................. 9 – 7SECTION 10 BLOCK DIAGRAMSECTION 11 WIRING DIAGRAMSECTION 12 VOLTAGE DIAGRAMS