| 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 | 
| 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 | 
| 132 | |
| 132 | |
| 133 | |
| 134 | |
| 
 | |
| ....................................................................................... | 135 | 
| 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:  | 148 | 
| Assembly 4: Keyboard and Mouse | 150 | 
| Appendix A. Online Support Information | 152 | 
| Index | 
 | 
2
