2
Repairing Information....................................................... 110
Removals and Replacements of machine type ................. 111
Identifying the Parts of the System Unit..............................112
Top Cover............................................................................ 114
Adapter Cards............................................................... 115
Diskette Drive................................................................ 117
CD-ROM Drive.............................................................. 118
Hard Disk Drive....................................................................119
System Board...................................................................... 119
Power Supply
.......................................................................................121
Memory (DIMM)............................................................ 121
Introduction.......................................................................... 123
Power Supply Cable Connector Specifications.................. 129
Main Output Pin Assignment........................................ 130
Factory-Installed Modem Card Layout................................132
Factory-Installed Modem Card Connector Functions.. 132
3.5-In. Hard Disk Drive Jumper Locations & Settings........133
CD-ROM Drive.....................................................................134
CD-ROM Drive Rear Panel Connectors and Features
.......................................................................................135
CD-ROM Drive Jumper Settings.................................. 135
DIMM Configurations...........................................................135
System Board Connector Pin Signals.................................136
Monitor Port Signals......................................................136
Serial Port Signals.........................................................136
Parallel Port Signals......................................................136
Mouse Port Signals.......................................................137
Keyboard Port Signals.................................................. 137
Diskette Drive Cable Connector Signals......................138
IDE Cable Connector Signals.......................................139
Safety Inspection Guide................................................... 140
General Guidelines..............................................................141
Parts Catalog......................................................................143
Part Catalog of machine type .............................................144
Assembly 1: System Unit.....................................................144
Assembly 2: Diskette Drive, Hard Disk Drive................ 147
Assembly 3: CD-ROM, Modem Card.............................148
Assembly 4: Keyboard and Mouse................................ 150
Appendix A. Online Support Information.......................152
Index