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 ................ 12SERVICE MODE FUNCTION ................................... 13SERVICE ................................................................. 14OPTION BYTES DESCRIPTION .............................. 15ADJUSTMENT METHOD ......................................... 16WIRING DIAGRAM ................................................... 17BLOCK DIAGRAMS.................................................. 18PARTS LOCATION................................................... 21REPLACEMENT PARTS LIST.................................. 22SCHEMATIC DIAGRAMS......................................... 43AP-BOARD (1 OF 2) SCHEMATIC DIAGRAM.... 44AP-BOARD (2 OF 2) SCHEMATIC DIAGRAM.... 45G-BOARD SCHEMATIC DIAGRAM .................... 46K-BOARD SCHEMATIC DIAGRAM .................... 47H-BOARD (1 OF 4) SCHEMATIC DIAGRAM ...... 48H-BOARD (2 OF 4) SCHEMATIC DIAGRAM ...... 49H-BOARD (3 OF 4) SCHEMATIC DIAGRAM ...... 50H-BOARD (4 OF 4) SCHEMATIC DIAGRAM ...... 51P-BOARD SCHEMATIC DIAGRAM .................... 52V-BOARD SCHEMATIC DIAGRAM .................... 53DG-BOARD (1 OF 14) SCHEM. DIAGRAM ........ 54DG-BOARD (2 OF 14) SCHEM. DIAGRAM ........ 55DG-BOARD (3 OF 14) SCHEM. DIAGRAM ........ 56DG-BOARD (4 OF 14) SCHEM. DIAGRAM ........ 57DG-BOARD (5 OF 14) SCHEM. DIAGRAM ........ 58DG-BOARD (6 OF 14) SCHEM. DIAGRAM ........ 59DG-BOARD (7 OF 14) SCHEM. DIAGRAM ........ 60DG-BOARD (8 OF 14) SCHEM. DIAGRAM ........ 61DG-BOARD (9 OF 14) SCHEM. DIAGRAM ........ 62DG-BOARD (10 OF 14) SCHEM. DIAGRAM ...... 63DG-BOARD (11 OF 14) SCHEM. DIAGRAM ...... 64DG-BOARD (12 OF 14) SCHEM. DIAGRAM ...... 65DG-BOARD (13 OF 14) SCHEM. DIAGRAM ...... 66DG-BOARD (14 OF 14) SCHEM. DIAGRAM ...... 67CONDUCTOR VIEWS .............................................. 683