CONTENTSSAFETY PRECAUTIONS .......................................................................... 4GENERAL GUIDE LINES..................................................................... 4TOUCH – CURRENT CHECK.............................................................. 4PREVENTION OF ELECTROSTATIC DISCHARGE (ESD)TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES .......................... 5ABOUT LEAD FREE SOLDER (PBF)........................................................ 6SUGGESTED PB FREE SOLDER....................................................... 6APPLICABLE SIGNALS............................................................................. 7SERVICE HINTS ....................................................................................... 8CHASSIS BOARD LAYOUT ...................................................................... 9SETTING INSPECTION............................................................................. 9SELF-CHECK .......................................................................................... 10POWER LED BLINKING TIMING CHART ............................................... 11SERVICE MODE FUNCTION .................................................................. 12SERVICE ................................................................................................ 13OPTION BYTES DESCRIPTION............................................................. 14ADJUSTMENT METHOD ........................................................................ 15WIRING DIAGRAM .................................................................................. 16BLOCK DIAGRAMS................................................................................. 17PARTS LOCATION.................................................................................. 20REPLACEMENT PARTS LIST................................................................. 22SCHEMATIC DIAGRAMS........................................................................ 42AP-BOARD SCHEMATIC DIAGRAM................................................ 43G-BOARD SCHEMATIC DIAGRAM................................................... 44H-BOARD (1 OF 4) SCHEMATIC DIAGRAM..................................... 45P-BOARD SCHEMATIC DIAGRAM ................................................... 49V-BOARD SCHEMATIC DIAGRAM ................................................... 50DG-BOARD (1 OF 13) SCHEMATIC DIAGRAM ................................ 51CONDUCTOR VIEWS ............................................................................. 643